Yumiko Ehara (Japanese: 江原 由美子, Hepburn: Ehara Yumiko; born October 29, 1952) is a Japanese sociologist. Her areas of…Yumiko Ehara (Japanese: 江原 由美子, Hepburn: Ehara Yumiko; born October 29, 1952) is a Japanese sociologist. Her areas of expertise include women's studies, gender studies, and theoretical sociology. As one of Japan's leading feminists, she has made significant contributions to feminist theory in Japan.
Hideki Kita (喜多 秀喜, Kita Hideki; born September 28, 1952) is a retired male long-distance runner from Japan. His…Hideki Kita (喜多 秀喜, Kita Hideki; born September 28, 1952) is a retired male long-distance runner from Japan. His personal best at the marathon distance was 2:10:30 at the 1983 Fukuoka Marathon.
Masataka Nakazawa (born 17 September 1952) is a Japanese researcher in optical communication engineering. He is a…Masataka Nakazawa (born 17 September 1952) is a Japanese researcher in optical communication engineering. He is a distinguished professor at Tohoku University in Japan. His pioneering work on erbium-doped fiber amplifier (EDFA) has made a significant contribution to the development of global long-distance, high-capacity optical fiber network.
Motoyuki Shitanda (四反田 素幸, Shitanda Motoyuki; born August 26, 1952 in Osaka Prefecture) is a contemporary Japanese…Motoyuki Shitanda (四反田 素幸, Shitanda Motoyuki; born August 26, 1952 in Osaka Prefecture) is a contemporary Japanese composer, music teacher, musicologist and conductor.
Kumiko Haba (羽場 久美子, Haba Kumiko) (born 1952) is a Japanese academic and an emeritus professor of international…Kumiko Haba (羽場 久美子, Haba Kumiko) (born 1952) is a Japanese academic and an emeritus professor of international relations at Aoyama Gakuin University in Tokyo. Her research focus is on international relations, global cooperation, migration, nationalism and xenophobia, and political stability. She's written extensively about the EU and Brexit and more recently about Trump. Haba is the author of more than 50 books and 160 articles.
Noboru Rokuda (六田登, Rokuda Noboru; born July 23, 1952 in Yao, Osaka Prefecture, Japan) is a Japanese manga artist. He…Noboru Rokuda (六田登, Rokuda Noboru; born July 23, 1952 in Yao, Osaka Prefecture, Japan) is a Japanese manga artist. He made his professional debut in 1978 with Saigo Test, for which he won the Shogakukan New Artist Award. He won the 1991 Shogakukan Manga Award for general manga for F.
Mariko Hiraiwa Hasegawa (Japanese: 長谷川眞理子, born 1952) is a Japanese zoologist and anthropologist who studies behavioral…Mariko Hiraiwa Hasegawa (Japanese: 長谷川眞理子, born 1952) is a Japanese zoologist and anthropologist who studies behavioral ecology, evolutionary psychology, and physical anthropology. Hasegawa served as the president of the Graduate University for Advanced Studies (Sokendai) in Kanagawa Prefecture, Japan, until 2023. She is "among the rare Japanese women primatologists to have gained international recognition." Her mother Satsue Mito collected field data on Japanese macaque troupes beginning in the 1950s, ultimately documenting four decades worth of behavior. Mito documented the cultural transmission of sweet-potato-washing within a group of wild macaques. During Hasegawa's doctoral studies at the University of Tokyo, she also studied Japanese macaques, as well as Tanzanian chimpanzees. She won a British Council Scholarship and went to Cambridge for zoology. She was on the faculty of Senshu University from 1990 to 2000, at which time she joined the faculty of Waseda University.
Kuniko Inoguchi (猪口 邦子, Inoguchi Kuniko; born 3 May 1952) is a Japanese political scientist and politician. She served…Kuniko Inoguchi (猪口 邦子, Inoguchi Kuniko; born 3 May 1952) is a Japanese political scientist and politician. She served as Minister of State for Gender Equality and Social Affairs from 2005 to 2006, and is currently a member of the House of Councillors representing Chiba Prefecture for the Liberal Democratic Party.
Haruhiko Kataoka (片岡晴彦, Haruhiko Kataoka; born April 1952) was the 32nd Chief of Staff of the Japan Air Self-Defense…Haruhiko Kataoka (片岡晴彦, Haruhiko Kataoka; born April 1952) was the 32nd Chief of Staff of the Japan Air Self-Defense Force, the de facto air force of Japan.
Yoichiro Kawaguchi (河口 洋一郎, Kawaguchi Yoichirō; born 1952 in Tanegashima, Kagoshima) is a Japanese computer graphics…Yoichiro Kawaguchi (河口 洋一郎, Kawaguchi Yoichirō; born 1952 in Tanegashima, Kagoshima) is a Japanese computer graphics artist and professor emeritus at the University of Tokyo.
Juichi Yamagiwa (Japanese: 山極 寿一) (born on February 21, 1952) is a Japanese anthropologist and the former president of…Juichi Yamagiwa (Japanese: 山極 寿一) (born on February 21, 1952) is a Japanese anthropologist and the former president of Kyoto University.
Jaw-Shen Tsai (Chinese: 蔡兆申; born February 8, 1952) is a Taiwan-born American physicist specializing in low-temperature…Jaw-Shen Tsai (Chinese: 蔡兆申; born February 8, 1952) is a Taiwan-born American physicist specializing in low-temperature solid-state physics. He is known for pioneering research on superconducting qubits and their quantum control. In 1999, he, Yasunobu Nakamura, and their colleagues achieved the first demonstration of qubit operation in a superconducting circuit. He has conducted research at NEC and RIKEN, and was appointed a professor at the Tokyo University of Science in 2015 and a chair professor at National Yang Ming Chiao Tung University in 2025.
Hitoshi Okamura (born December 2, 1952) is a Japanese scientist who specializes in chronobiology. He is currently a…Hitoshi Okamura (born December 2, 1952) is a Japanese scientist who specializes in chronobiology. He is currently a professor of Systems Biology at Kyoto University Graduate School of Pharmaceutical Sciences and the Research Director of the Japan Science Technology Institute, CREST. Okamura's research group cloned mammalian Period genes, visualized clock oscillation at the single cell level in the central clock of the SCN, and proposed a time-signal neuronal pathway to the adrenal gland. He received a Medal of Honor with Purple Ribbon in 2007 for his research and was awarded Aschoff's Ruler for his work on circadian rhythms in rodents. His lab recently revealed the effects of m6A mRNA methylation on the circadian clock, neuronal communications in jet lag, and the role of dysregulated clocks in salt-induced hypertension.
Kang Chang-il (Korean: 강창일; born 28 January 1952) is a South Korean politician who is member of the National Assembly…Kang Chang-il (Korean: 강창일; born 28 January 1952) is a South Korean politician who is member of the National Assembly since 2004. Kang served as South Korea's ambassador to Japan from January 2021 to 2022.
Maki Kawai (川合眞紀, Kawai Maki) is a Japanese chemist who developed spatially selective single-molecule spectroscopy. In…Maki Kawai (川合眞紀, Kawai Maki) is a Japanese chemist who developed spatially selective single-molecule spectroscopy. In 2018, she became the first woman to become president of the Chemical Society of Japan.
Yoh Iwasa (born 1952) is a Japanese Mathematical Biologist who is considered the leading mathematical biologist in…Yoh Iwasa (born 1952) is a Japanese Mathematical Biologist who is considered the leading mathematical biologist in Japan. His work includes the evolution of costly mate preferences and the evolutionary dynamics of cancer. Notable papers include: "The evolution of costly mate preferences II. The 'handicap' principle" Evolution 1991 "Demographic theory for an open marine population with space-limited recruitment" with Joan Roughgarden Ecology 1985 "Dynamics of chronic myeloid leukaemia" Nature 2005 "Prey distribution as a factor determining the choice of optimal foraging strategy" The American Naturalist 1981 - JSTOR "Influence of nonlinear incidence rates upon the behavior of SIRS epidemiological models" with Simon Levin Journal of Mathematical Biology, 1986 He has mentored more than 20 Ph.D. students and 20 Postdoctoral researchers.
Shigeo Ohno (大野 茂男, Ōno Shigeo; born March 1952) is a Japanese molecular biologist known for his pioneer research on…Shigeo Ohno (大野 茂男, Ōno Shigeo; born March 1952) is a Japanese molecular biologist known for his pioneer research on Protein Kinase C (PKC) and Cell Polarity. His works led to the fundamental understanding of cell polarity in response to cell signaling.
Hiroko Nagahara (Japanese: 永原 裕子, born 1952) is a Japanese cosmochemist and astromineralogist whose research studies…Hiroko Nagahara (Japanese: 永原 裕子, born 1952) is a Japanese cosmochemist and astromineralogist whose research studies the chemical composition and formation of chondrules, the molten mineral droplets that accrete to form asteroids and meteoroids. She is a fellow of the Earth–Life Science Institute of the Tokyo Institute of Technology, a professor emerita of Tokyo University, and a former president of the Meteoritical Society.
Shun'ichi Yamashita (山下 俊一, Yamashita Shun'ichi; born 1952) is a Japanese medical scientist serving as dean and…Shun'ichi Yamashita (山下 俊一, Yamashita Shun'ichi; born 1952) is a Japanese medical scientist serving as dean and professor at the Graduate School of Biomedical Sciences at Nagasaki University.
Isao Takeuchi (竹内功, 18 December 1951 – 24 September 2026) was a Japanese civil servant and politician. He began his…Isao Takeuchi (竹内功, 18 December 1951 – 24 September 2026) was a Japanese civil servant and politician. He began his career as a bureaucrat in the Ministry of Construction (now known as the Ministry of Land, Infrastructure, Transport and Tourism) beginning in 1974. In 2002, he was elected Mayor of Tottori city, defeating the incumbent mayor. He served three terms consecutive terms as Tottori's mayor for twelve years from 2002 until 2014. During his first term, Mayor Takeuchi oversaw the 2004 merger of Tottori city with six surrounding towns and two villages to establish Tottori's modern city borders. Takeuchi also opened the Tottori Sand Museum, established new facilities at the West Japan Railway Company JR train station, and expanded the Tottori Expressway.
Mitsuo Sawamoto (澤本 光男 Sawamoto Mitsuo, December 12, 1954) is a Japanese chemist specializing in the field of polymer…Mitsuo Sawamoto (澤本 光男 Sawamoto Mitsuo, December 12, 1954) is a Japanese chemist specializing in the field of polymer chemistry, Emeritus Professor at Kyoto University, professor at Chubu University. He is co-recipient of the Franklin Institute Award in Chemistry in 2017 with Krzysztof Matyjaszewski, for their independent discover of Atom-transfer radical-polymerization (ATRP).
Hitoshi Nagai (永井 均, Nagai Hitoshi; born November 10, 1951) is one of the most influential Japanese philosophers, who…Hitoshi Nagai (永井 均, Nagai Hitoshi; born November 10, 1951) is one of the most influential Japanese philosophers, who taught philosophy at Chiba University and later at Nihon University. His main research fields are metaphysics and metaethics. His books include "Philosophy for Kids!" and "A Transfer Student and Black Jack: A Seminar on Solipsity," which interpret solipsism from a unique metaphysical point of view. Nagai's philosophy has been heavily influenced by Wittgenstein, however, his philosophy successfully elucidates an important aspect of solipsism which Wittgenstein could not fully express in his philosophical works. Nagai stresses that the solipsistic subject (such as "I!") can be pointed to by using the public language, but the trial of this pointing ought to be failed every time because of the unique function of our public language. He calls this characteristic "solipsity".
Takashi Gojobori (五條堀 孝, Gojobori Takashi; born October 24, 1951, Fukuoka) is a Japanese molecular biologist who is…Takashi Gojobori (五條堀 孝, Gojobori Takashi; born October 24, 1951, Fukuoka) is a Japanese molecular biologist who is vice director of the National Institute of Genetics (NIG) and the DNA Data Bank of Japan (DDBJ) at NIG in Mishima, Japan. Gojobori is a distinguished professor at King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia. He is a professor of bioscience and acting director at the Computational Bioscience Research Center at KAUST. He has also been co-appointed as the special research consultant of the National Institute of Advanced Industrial Science and Technology (AIST), and acts as a visiting professor at Keio University, University of Tokyo, and Tokyo Institute of Technology. He is an associate member of the European Molecular Biology Organization (EMBO), a member of Academia Europea and an academician member of the Pontifical Academy of Sciences, Vatican.
Shojiro Nishio (西尾 章治郎, Nishio Shōjirō) is a Japanese information scientist and technology scholar and the 18th…Shojiro Nishio (西尾 章治郎, Nishio Shōjirō) is a Japanese information scientist and technology scholar and the 18th president of Osaka University. Having co-authored or co-edited more than 55 books and more than 650 refereed journal or conference papers as well as serving on editorial boards of major information sciences journals, Nishio is considered one of the most prominent and influential researchers on database systems and networks. He became Osaka University's full professor in 1992. Thereafter he has held a number of key leadership positions of Osaka University such as the Founding Director of the Cybermedia Center, Dean of Graduate School of Information Science and Technology, Executive Vice President prior to becoming the university's president in 2015. In addition, Nishio has served on numerous committees and governing bodies of the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and the Japan Science and Technology Agency (JST). In his capacity both as a leading computer scientist and president of Japan's leading research university, Nishio has facilitated the formulation of Japan's higher education and science policies and been instrumental in setting their overall directions. Nisho has become a member of the Science Council of Japan, the country's Academy of Science, since 2006 and acted as the Chair of Informatics from 2011 to 2014.
Satoshi Kawata (河田 聡, Kawata Satoshi; born 1 October 1951), is a scientist based in Japan who is active in…Satoshi Kawata (河田 聡, Kawata Satoshi; born 1 October 1951), is a scientist based in Japan who is active in nanotechnology, photonics, plasmonics, and other areas of applied physics. He is a Professor of Department of Applied Physics at Osaka University. He is also a Chief Scientist at RIKEN. Kawata was the 2022 president of Optica.
Haruhiko Okumura (奥村 晴彦, Okumura Haruhiko; born 1951) is a Japanese professor. His free LZSS implementation from 1989…Haruhiko Okumura (奥村 晴彦, Okumura Haruhiko; born 1951) is a Japanese professor. His free LZSS implementation from 1989 is used in many products. He also worked on an adding an arithmetic-encoding step to form LZARI, the precursor to LZH.
Masatoshi Ueki (植木 雅俊, Ueki Masatoshi; born 1951) is a Japanese scholar of Buddhist studies. Ueki is an expert in the…Masatoshi Ueki (植木 雅俊, Ueki Masatoshi; born 1951) is a Japanese scholar of Buddhist studies. Ueki is an expert in the original Buddhist texts, including Sanskrit and Pali texts as well as Chinese and Japanese translations of sutras.
Shunri Oda from the Tokyo Institute of Technology, Tokyo, Japan was named Fellow of the Institute of Electrical and…Shunri Oda from the Tokyo Institute of Technology, Tokyo, Japan was named Fellow of the Institute of Electrical and Electronics Engineers (IEEE) in 2012 for contributions to silicon quantum dot devices.
Tsunemi Kubodera (窪寺 恒己, Kubodera Tsunemi; born 1951 in Nakano, Tokyo) is a Japanese zoologist with the National Museum…Tsunemi Kubodera (窪寺 恒己, Kubodera Tsunemi; born 1951 in Nakano, Tokyo) is a Japanese zoologist with the National Museum of Nature and Science. On September 30, 2004, Kubodera and his team became the first people to photograph a live giant squid in its natural habitat. Two years later, on December 4, 2006, he also managed to successfully film a live adult giant squid for the first time ever. On July 10, 2012, Kubodera, together with Steve O'Shea and Edith Widder, became the first to film a live giant squid in its natural habitat from a submersible off the Bonin Islands. In addition to these firsts involving the giant squid, in 2005, Kubodera also became the first to film the Dana octopus squid (Taningia danae) in its natural habitat.
Yoshihiro Katayama (片山 善博, Katayama Yoshihiro; born 29 July 1951) is a former Japanese politician who served as the…Yoshihiro Katayama (片山 善博, Katayama Yoshihiro; born 29 July 1951) is a former Japanese politician who served as the Minister of Internal Affairs and Communications in the Kan Cabinet from September 2010 through to September 2011. He was the governor of Tottori Prefecture from 1999 to 2007.
Ken Sakamura (坂村 健, Sakamura Ken; born 25 July 1951 in Tokyo, Japan), as of April 2017, is a Japanese professor and…Ken Sakamura (坂村 健, Sakamura Ken; born 25 July 1951 in Tokyo, Japan), as of April 2017, is a Japanese professor and dean of the Faculty of Information Networking for Innovation and Design at Toyo University, Japan. He is a former professor in information science at the University of Tokyo (through March 2017). He is the creator of the real-time operating system (RTOS) architecture TRON. In 2001, he shared the Takeda Award for Social/Economic Well-Being with Richard Stallman and Linus Torvalds.
Susumu Kitagawa (北川 進, Kitagawa Susumu; born 4 July 1951) is a Japanese Nobel Prize-winning chemist specializing in…Susumu Kitagawa (北川 進, Kitagawa Susumu; born 4 July 1951) is a Japanese Nobel Prize-winning chemist specializing in coordination chemistry, with a focus on organic–inorganic hybrid compounds and the chemical and physical properties of porous coordination polymers, particularly metal-organic frameworks. He is Distinguished Professor at Kyoto University's Institute for Integrated Cell-Material Sciences (iCeMS), which he co-founded. In 2025, he was awarded the Nobel Prize in Chemistry jointly with Richard Robson and Omar M. Yaghi.
Shuichi Nosé (能勢 修一, Nose Shūichi; June 17, 1951 – August 17, 2005) was a Japanese physicist. Nosé is best known for…Shuichi Nosé (能勢 修一, Nose Shūichi; June 17, 1951 – August 17, 2005) was a Japanese physicist. Nosé is best known for his two 1984 papers in which he proposed a method to specify the temperature of molecular dynamics simulations. This method was later improved by William G. Hoover and is known as the Nosé–Hoover thermostat.
Naoyuki Agawa (阿川 尚之, Agawa Naoyuki; April 14, 1951 – November 12, 2024) was a Japanese lawyer, diplomat, academic and…Naoyuki Agawa (阿川 尚之, Agawa Naoyuki; April 14, 1951 – November 12, 2024) was a Japanese lawyer, diplomat, academic and author. He was a professor of law at Keio University from 1999; and from 2009, he served as the university's vice president for International Collaboration and Education.
Kohji Kishio (岸尾 光二, Kishio Kōji; born April, 1951) is a Japanese scientist. He retired from the University of Tokyo in…Kohji Kishio (岸尾 光二, Kishio Kōji; born April, 1951) is a Japanese scientist. He retired from the University of Tokyo in March 2017 and is now Emeritus Professor of UT. His major research fields are Solid State Chemistry, Materials Science and Superconducting Materials Engineering. He is a Fellow of the Japan Society of Applied Physics.
Eiichi Nakamura (中村 栄一, Nakamura Eiichi; born 24 February 1951) is a Japanese chemist and professor of chemistry at…Eiichi Nakamura (中村 栄一, Nakamura Eiichi; born 24 February 1951) is a Japanese chemist and professor of chemistry at University of Tokyo in Japan, also appointed as lecture profession in Nankai University in Tianjin, China from Sep 2025.
Hisato Igarashi (五十嵐 久人, Igarashi Hisato; born February 19, 1951 in Tochigi Prefecture) is a Japanese former gymnast.…Hisato Igarashi (五十嵐 久人, Igarashi Hisato; born February 19, 1951 in Tochigi Prefecture) is a Japanese former gymnast. He was a member of the Japanese team that won the gold medal at the 1976 Summer Olympics in Montreal. He is a professor at Niigata University.
Shimon Sakaguchi (坂口 志文, Sakaguchi Shimon; born 19 January 1951) is a Japanese immunologist. He is a distinguished…Shimon Sakaguchi (坂口 志文, Sakaguchi Shimon; born 19 January 1951) is a Japanese immunologist. He is a distinguished professor at Osaka University and a professor emeritus at Kyoto University. His work includes the discovery of regulatory T cells and describing their role in the immune system. In 2025, he was jointly awarded the Nobel Prize in Physiology or Medicine with Mary E. Brunkow and Fred Ramsdell.
Fumio Tajima (田嶋 文生, Tajima Fumio), (born 1951) is a Japanese population geneticist known for his contributions to…Fumio Tajima (田嶋 文生, Tajima Fumio), (born 1951) is a Japanese population geneticist known for his contributions to coalescence theory. He developed the test statistic now known as Tajima's D.
Tsutomu Hikida (Japanese: 疋田 努, born 1951) is a Japanese zoologist and herpetologist. He is an emeritus professor at…Tsutomu Hikida (Japanese: 疋田 努, born 1951) is a Japanese zoologist and herpetologist. He is an emeritus professor at Kyoto University, known for his extensive research in herpetology, particularly the systematics, taxonomy, and biogeography of reptiles and amphibians. He has served as president of the Herpetological Society of Japan and as chairman of its Committee on Standard Japanese Names.
Kyoichi Jim Kijima (木嶋 恭一, born 1951) is a Japanese systems scientist and professor of Decision Systems Science at the…Kyoichi Jim Kijima (木嶋 恭一, born 1951) is a Japanese systems scientist and professor of Decision Systems Science at the Tokyo Institute of Technology.
Hirofumi Akagi (born in Okayama, Japan) is a Japanese electrical engineer and Distinguished Emeritus Professor at the…Hirofumi Akagi (born in Okayama, Japan) is a Japanese electrical engineer and Distinguished Emeritus Professor at the Institute of Science Tokyo. He specializes in power electronics and power conversion systems. He developed the three-level neutral-point-clamped PWM inverters and the three-phase instantaneous power theory, commonly known as p-q theory.
Chang Juu-en (Chinese: 張祖恩; pinyin: Zhāng Zǔ'ēn; Pe̍h-ōe-jī: Tiuⁿ Chó͘-un; born 1951) is a Taiwanese civil engineer who…Chang Juu-en (Chinese: 張祖恩; pinyin: Zhāng Zǔ'ēn; Pe̍h-ōe-jī: Tiuⁿ Chó͘-un; born 1951) is a Taiwanese civil engineer who served as Minister of the Environmental Protection Administration from 2003 to 2005.
Takanobu Takahashi (高橋 孝信, Takahashi Takanobu; born 1951) is a Japanese Indologist, who is currently associate…Takanobu Takahashi (高橋 孝信, Takahashi Takanobu; born 1951) is a Japanese Indologist, who is currently associate professor of Indian literature at International Buddhist University at Osaka, Japan. He is the second translator of the Kural into Japanese.
Takashi Hikino (曳野 孝, Hikino Takashi; 18 October 1950 – 15 March 2022 in Osaka, Japan) is specially appointed professor…Takashi Hikino (曳野 孝, Hikino Takashi; 18 October 1950 – 15 March 2022 in Osaka, Japan) is specially appointed professor at the Graduate School of Management at Kyoto University after serving as associate professor of industrial and business organization at the Graduate School of Management at Kyoto University where he taught industrial organization, business economics, and corporate strategy, and comparative management since 1998. He attended Hitotsubashi University, where he studied at the Graduate School of Sociology(B.A(1973). and M.A.(1975)) His best known work is Big Business and the Wealth of Nations (edited by Alfred D. Chandler, Jr., Franco Amatori, and Hikino, ISBN 0-521-48123-6). He also teaches Japanese Business and Economic Development to American students at the Kyoto Consortium for Japanese Studies. Hikino is loved for his sense of humor and general sarcasm. In a 1998 article in World Policy Journal, "What can an activist government do?", Hikino and co-author Alice Amsden contended that East Asian governments would rebound from the ongoing currency crisis, and that in order to hasten that rebound they shouldn't take to heart the advice they were getting from the western industrialized powers, because "this is what got them into trouble in the first place." East Asian companies have developed a system that is more reliant on activist government than that of the "North Atlantic" economies, the article said.
Tetsuro Matsuzawa (松沢 哲郎, Matsuzawa Tetsurō; born October 15, 1950) is a primatologist who was a past director of the…Tetsuro Matsuzawa (松沢 哲郎, Matsuzawa Tetsurō; born October 15, 1950) is a primatologist who was a past director of the Primate Research Institute of Kyoto University. He graduated from Kyoto University with a B.A. degree in 1974, a Psy.M. degree in 1976 and a Ph.D. degree in Science in 1989. Matsuzawa is known for his research on chimpanzee intelligence both in the laboratory and in the wild. His laboratory work consists of the "Ai project", which focuses on the language-like skills, number-concepts, and memory ability of a female chimpanzee named Ai. Started in 1978, it is one of the longest running laboratory research projects on chimpanzee intelligence. Matsuzawa has been a part of the project since the beginning. Matsuzawa has also studied tool use in the wild chimpanzees at Bossou, Guinea, West Africa since 1986. The bossou chimpanzee community consists of about 12 individuals and has been studied by Japanese researchers for three decades. Bossou chimps are well known to use a pair of stones as hammer and anvil to crack open oil-palm nuts. Long-term research on wild chimpanzee tool use revealed interesting topics like handedness of use of a hammer, critical period of learning nut-cracking at around 3 to 5 year old, "education by master-apprenticeship" and observational learning, possession of stones, deception, new tool use like algae-scooping, use of leaves for cushions, cultural variation in adjacent communities, etc. Matsuzawa's approach to research is to synthesize the field work and the laboratory work in order to understand the nature of chimpanzees, our evolutionary neighbors. Matsuzawa is well known for his research on chimpanzee memory, which suggests that chimpanzees outperform humans on some simple memory tasks. He has argued that this is evidence of a memorial capacity in young chimpanzees that is superior to that seen in adult humans. However, the accuracy of these findings has been disputed. A. Silberberg and D. Kearns have argued that the performance difference between human and chimpanzee trials can be explained by training effects on the tested chimpanzees. They did reach Ayumu's performance level after thousands of trials, as did humans in a subsequent study with training more closely matching that of the chimpanzees, but only for 5 numbers whereas Ayumu effortlessly does it for 9. In 2020, Kyoto University announced that Matsuzawa was involved in misappropriating the funding of Primate Research Institute.
Hideo Aoki is a Japanese theoretical physicist. He is an emeritus professor at the University of Tokyo, Japan, and…Hideo Aoki is a Japanese theoretical physicist. He is an emeritus professor at the University of Tokyo, Japan, and works in the field of condensed-matter physics and cold-atom physics.
Eijun Kiyokumo (清雲 栄純, Kiyokumo Eijun; born September 11, 1950) is a former Japanese football player and manager. He…Eijun Kiyokumo (清雲 栄純, Kiyokumo Eijun; born September 11, 1950) is a former Japanese football player and manager. He played for Japan national team.
