Hinano Kusaki (Japanese: 草木ひなの, Hepburn: Kusaki Hinano; born 4 April 2008) is a Japanese professional skateboarder. She…Hinano Kusaki (Japanese: 草木ひなの, Hepburn: Kusaki Hinano; born 4 April 2008) is a Japanese professional skateboarder. She won a gold medal in the women's park event at the 2022 Asian Games.
Kimiya Moriyama (森山 公弥, Moriyama Kimiya; born 4 April 2002) is a Japanese footballer currently playing as a defender…Kimiya Moriyama (森山 公弥, Moriyama Kimiya; born 4 April 2002) is a Japanese footballer currently playing as a defender for J2 League club Oita Trinita, on loan from Avispa Fukuoka.
Kana Kobayashi (小林 香菜 (Kobayashi Kana, born 4 April 2001)) is a Japanese long-distance runner who competes primarily in…Kana Kobayashi (小林 香菜 (Kobayashi Kana, born 4 April 2001)) is a Japanese long-distance runner who competes primarily in the marathon. As of October 2025, all of her races have taken place in Japan.
NiziU (Japanese: ニジュー; Korean: 니쥬) is a Japanese girl group formed by JYP Entertainment and Sony Music Entertainment…NiziU (Japanese: ニジュー; Korean: 니쥬) is a Japanese girl group formed by JYP Entertainment and Sony Music Entertainment Japan through the reality-survival program Nizi Project (2020). The group is composed of nine members: Mako, Rio, Maya, Riku, Ayaka, Mayuka, Rima, Miihi, and Nina. Active in both Japan and Korea, NiziU debuted on December 2, 2020, with the release of their debut single "Step and a Step", and made their Korean debut on October 30, 2023, with the release of their single album "Press Play".
Shōsei Togō (戸郷 翔征, Togō Shōsei; born April 4, 2000) is a Japanese professional baseball pitcher for the Yomiuri Giants…Shōsei Togō (戸郷 翔征, Togō Shōsei; born April 4, 2000) is a Japanese professional baseball pitcher for the Yomiuri Giants of Nippon Professional Baseball (NPB).
Yuya Fukuda (福田 湧矢, Fukuda Yūya; born 4 April 1999) is a Japanese footballer who plays as a winger for J1 League club…Yuya Fukuda (福田 湧矢, Fukuda Yūya; born 4 April 1999) is a Japanese footballer who plays as a winger for J1 League club Tokyo Verdy. His younger brother Sho is also a professional footballer currently playing for J1 League side Shonan Bellmare.
Ryoya Tachibana (立花 凌也, Tachibana Ryoya; born 4 April 1996) is a Japanese professional footballer who currently plays…Ryoya Tachibana (立花 凌也, Tachibana Ryoya; born 4 April 1996) is a Japanese professional footballer who currently plays as a left-back for Hong Kong Premier League club Lee Man.
Masamichi Hayashi (林 誠道, Hayashi Masamichi; born 4 April 1996) is a Japanese footballer who plays for J2 League club FC…Masamichi Hayashi (林 誠道, Hayashi Masamichi; born 4 April 1996) is a Japanese footballer who plays for J2 League club FC Imabari, on loan from JEF United Chiba.
Shohei Takeda (武田 将平, Takeda Shohei; born 4 April 1994, in Kanagawa Prefecture) is a Japanese professional footballer…Shohei Takeda (武田 将平, Takeda Shohei; born 4 April 1994, in Kanagawa Prefecture) is a Japanese professional footballer who plays as a midfielder for J2 League club Shonan Bellmare.
Takeshi Kanamori (金森 健志, Kanamori Takeshi; pronounced [kana̠moɾi takeɕi]; born 4 April 1994) is a Japanese footballer…Takeshi Kanamori (金森 健志, Kanamori Takeshi; pronounced [kana̠moɾi takeɕi]; born 4 April 1994) is a Japanese footballer who plays for A-League Men club Melbourne City.
Ayase (born April 4, 1994) is a Japanese musician, singer, songwriter, and record producer. His musical career began in…Ayase (born April 4, 1994) is a Japanese musician, singer, songwriter, and record producer. His musical career began in 2012 as a vocalist for the rock band Davinci, which disbanded in 2020, before transitioning to the Vocaloid scene and releasing his first two EPs, Ghost City Tokyo (2019) and Mikunoyoasobi (2021), featuring Vocaloid voicebank Hatsune Miku. He is best known as a member of Yoasobi, a musical duo in which he serves as songwriter and vocalist Ikura. In 2026, Ayase released his third EP, Dialogue, which featured his own vocals.
Kenta Fujii (born 4 April 1994 in Suzuka) is a Japanese Grand Prix motorcycle racer. He currently competes in the All…Kenta Fujii (born 4 April 1994 in Suzuka) is a Japanese Grand Prix motorcycle racer. He currently competes in the All Japan Road Race J-GP3 Championship aboard a Honda NSF250R. He has previously competed in the MFJ All Japan Road Race GPMono Championship, the MFJ All Japan Road Race GP125 Championship, the MFJ All Japan Road Race J-GP3 Championship and the Spanish CEV Moto3 Championship. Fujii won the GPMono title in 2010, and the J-GP3 title in 2011.
Kohei Hattori (服部康平, Hattori, Kohei; born 4 April 1991 in Kawasaki, Kanagawa) is a Japanese footballer who plays for…Kohei Hattori (服部康平, Hattori, Kohei; born 4 April 1991 in Kawasaki, Kanagawa) is a Japanese footballer who plays for Matsumoto Yamaga FC.
Manabu Saitō (齋藤 学, Saitō Manabu; born 4 April 1990) is a Japanese professional footballer who plays as a winger for…Manabu Saitō (齋藤 学, Saitō Manabu; born 4 April 1990) is a Japanese professional footballer who plays as a winger for Japan Football League club Azul Claro Numazu. He spent the majority of his career with Yokohama F. Marinos.
Yūki Mihara (三原 勇希, Mihara Yūki; born April 4, 1990, in Higashiōsaka, Osaka Prefecture, Japan) is a Japanese model and…Yūki Mihara (三原 勇希, Mihara Yūki; born April 4, 1990, in Higashiōsaka, Osaka Prefecture, Japan) is a Japanese model and gravure idol who is affiliated with Discovery Entertainment. She has a bachelor's degree in literature from Rikkyo University.
Kenji Kubo (born 4 April 1989), also known simply as KENJI, is a Japanese kickboxer and former professional boxer. He…Kenji Kubo (born 4 April 1989), also known simply as KENJI, is a Japanese kickboxer and former professional boxer. He is the 2017 K-1 Super Bantamweight Grand Prix finalist, the 2011 RISE Bantamweight champion and the 2007 NJKF Flyweight champion.
Shunsuke Ueda (植田 峻佑, Ueda Shunsuke; born 4 April 1988 in Yachiyo, Chiba) is a Japanese footballer who plays as a…Shunsuke Ueda (植田 峻佑, Ueda Shunsuke; born 4 April 1988 in Yachiyo, Chiba) is a Japanese footballer who plays as a Goalkeeper and currently play for J2 League club, FC Imabari.
Norihiro Kawakami (川上 典洋, Kawakami Norihiro; born April 4, 1987) is a Japanese professional footballer who last played…Norihiro Kawakami (川上 典洋, Kawakami Norihiro; born April 4, 1987) is a Japanese professional footballer who last played for Young Elephant F.C. in the Lao League 1 as a defender.
Kyohei Iwasaki (岩崎 恭平, born April 4, 1986) is a Japanese professional baseball second baseman. Iwasaki played for…Kyohei Iwasaki (岩崎 恭平, born April 4, 1986) is a Japanese professional baseball second baseman. Iwasaki played for Chunichi Dragons in Japan's Nippon Professional Baseball in 2009, 2010, and 2013.
Masumi Hoshino (星野 真澄, born April 4, 1984, in Saitama, Saitama) is a Japanese former professional baseball pitcher in…Masumi Hoshino (星野 真澄, born April 4, 1984, in Saitama, Saitama) is a Japanese former professional baseball pitcher in Japan's Nippon Professional Baseball. He played with the Yomiuri Giants from 2010 to 2012. Before joining the Giants in 2010, he pitched for the Shinano Grandserows of the Baseball Challenge League.
Hoshiko Yamane (山根星子, Yamane Hoshiko; born 4 April 1981) is a Japanese violinist, composer and performer based in…Hoshiko Yamane (山根星子, Yamane Hoshiko; born 4 April 1981) is a Japanese violinist, composer and performer based in Berlin. She has been a member of Tangerine Dream since 2011.
Yumiko Abe (阿部 由美子, Abe Yumiko; born April 4, 1979), better known by her ring name Yumi Ohka (桜花 由美, Ōka Yumi), is a…Yumiko Abe (阿部 由美子, Abe Yumiko; born April 4, 1979), better known by her ring name Yumi Ohka (桜花 由美, Ōka Yumi), is a Japanese professional wrestler. Originally trained by the now defunct JDStar promotion, Ohka now works for Oz Academy and Pro Wrestling Wave. She is a former two-time Wave Single Champion, while also being a former Oz Academy Tag Team Champion and Wave Tag Team Champion. She is the managing director of Zabun Co., Ltd., which owns Pro Wrestling Wave.
Aya Kawai (河合 彩, Kawai Aya; born April 4, 1975) is a Japanese former competitive ice dancer. She competed with Hiroshi…Aya Kawai (河合 彩, Kawai Aya; born April 4, 1975) is a Japanese former competitive ice dancer. She competed with Hiroshi Tanaka. They placed 23rd in the 1998 Winter Olympic Games. They were two-time Japanese national champions.
Do As Infinity is a Japanese pop and rock band that formed in 1999 with three members: vocalist Tomiko Van, guitarist…Do As Infinity is a Japanese pop and rock band that formed in 1999 with three members: vocalist Tomiko Van, guitarist Ryo Owatari, and guitarist and composer Dai Nagao. The band's name is sometimes abbreviated as DAI, alluding to the fact that Do As Infinity was named after Nagao. Signed to Avex Trax, the band released their debut single "Tangerine Dream" on September 29, 1999, followed by three more singles between 1999 and 2000, which appeared on their debut album Break of Dawn (2000). In December 2000, Nagao decided to devote all his time to composing the music and no longer appeared at live events. Five more studio albums were released between 2001 with New World and 2005 with Need Your Love. With the release of their A-side singles compilation album Do the A-side (2005), Do As Infinity disbanded on September 29, 2005. The members continued work in the music industry, with Van pursuing a solo career, Owatari working with his band Missile Innovation formed in 2004, and Nagao continuing to work with other artists at Avex Trax. The band reformed on September 29, 2008, but Nagao did not return. Do As Infinity had their first new single release "∞1", in June 2009, followed by their seventh studio album Eternal Flame (2009). The band released their 11th and latest studio album Brand New Days in February 2015.
Kenichiro Itami (伊丹 健一郎, Itami Ken'ichirō; born April 4, 1971) is a Japanese chemist. He is a professor at Nagoya…Kenichiro Itami (伊丹 健一郎, Itami Ken'ichirō; born April 4, 1971) is a Japanese chemist. He is a professor at Nagoya University in the Department of Chemistry, Graduate School of Science, director of Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University and the Research Director of the Itami Molecular Nanocarbon Project (JST-ERATO). He received his Ph.D. in Engineering from the Department of Synthetic Chemistry and Biological Chemistry from Kyoto University. Itami was held responsible, and the Japan Science and Technology Agency (JST) and the Japan Society for the Promotion of Science (JSPS), which determine the allocation of government research funds, have stopped granting research funds as a penalty until the end of March 2025 from the university. Despite this, RIKEN, which is funded mainly by research fees from the government, hired Itami and obtained about 50 million yen in research funding. He pioneered a loophole that allowed him to obtain research funding by belonging to a national research corporation even if his research funding from the government was suspended due to research misconduct.
Wakako Abe (阿部 和香子, Abe Wakako; born 4 April 1966) is a Japanese former cyclist. She competed in the women's road race…Wakako Abe (阿部 和香子, Abe Wakako; born 4 April 1966) is a Japanese former cyclist. She competed in the women's road race event at the 1984 Summer Olympics and 1990 Asian Games.
Ikko Nakatsuka (born 4 April 1965) is a Japanese politician, member of Democratic Party of Japan and former minister of…Ikko Nakatsuka (born 4 April 1965) is a Japanese politician, member of Democratic Party of Japan and former minister of state.
Satoshi Furukawa (古川 聡, Furukawa Satoshi; born April 4, 1964) is a Japanese surgeon and retired JAXA astronaut.…Satoshi Furukawa (古川 聡, Furukawa Satoshi; born April 4, 1964) is a Japanese surgeon and retired JAXA astronaut. Furukawa was assigned to the International Space Station as a flight engineer on long-duration missions Expedition 28/29 (2011) and Expedition 69/70 (2023-2024).
Chiaki J. Konaka (小中 千昭, Konaka Chiaki; born April 4, 1961) is a Japanese screenwriter and novelist. He was the head…Chiaki J. Konaka (小中 千昭, Konaka Chiaki; born April 4, 1961) is a Japanese screenwriter and novelist. He was the head writer of anime series such as Serial Experiments Lain (1998), The Big O (1999–2003), Digimon Tamers (2001–02), Hellsing (2001–02), and Texhnolyze (2003), as well as the television drama Ultraman Tiga (1996–97).
Kenji Hasegawa (長谷川健志, Hasegawa Kenji) is a Japanese basketball coach. He was the head coach of the Japan national…Kenji Hasegawa (長谷川健志, Hasegawa Kenji) is a Japanese basketball coach. He was the head coach of the Japan national basketball team from 2014 until his resignation in late 2016. Hasegawa coached the Japanese Universiade team at the 2007 Summer Universiade in Bangkok, Thailand and the Aoyama Gakuin University basketball team. He led Aoyama to a quarter-finals appearance at the 2013 Emperor's Cup after beating Levanga Hokkaido.
Kanako Fukaura (深浦 加奈子, Fukaura Kanako; 4 April 1960 – 25 August 2008) was a Japanese actress. Born in Tokyo, she…Kanako Fukaura (深浦 加奈子, Fukaura Kanako; 4 April 1960 – 25 August 2008) was a Japanese actress. Born in Tokyo, she developed fame largely through many performances as a supporting actress.
Masakuni Yamamoto (山本 昌邦, Yamamoto Masakuni; born April 4, 1958) is a former Japanese football player and manager. He…Masakuni Yamamoto (山本 昌邦, Yamamoto Masakuni; born April 4, 1958) is a former Japanese football player and manager. He played for Japan national team.
Hiroyuki Itagaki (Japanese: 板垣 博之, Hepburn: Itagaki Hiroyuki; born April 4, 1957), better known by the pen name Keisuke…Hiroyuki Itagaki (Japanese: 板垣 博之, Hepburn: Itagaki Hiroyuki; born April 4, 1957), better known by the pen name Keisuke Itagaki (板垣 恵介, Itagaki Keisuke), is a Japanese manga artist. He is best known for his martial arts series Baki the Grappler (1991–1999) and its many sequels, which together have sold over 100 million copies, making it one of the best-selling manga series in history. Itagaki lives in Fuchū, Tokyo, and has been a Musashi Province Fuchū Ambassador since 2014. He is the father of fellow manga artist Paru Itagaki.
Nobuyoshi Kuwano (桑野 信義, Kuwano Nobuyoshi; born April 4, 1957 in Ōta, Tokyo) is a Japanese television performer, former…Nobuyoshi Kuwano (桑野 信義, Kuwano Nobuyoshi; born April 4, 1957 in Ōta, Tokyo) is a Japanese television performer, former member of Rats & Star. His nickname is "Kuwa-man" (桑マン). In Rats & Star, he took charge of the trumpet and vocals. After the group broke up, he shifted to a television comedian and co-starred with The Drifters' Ken Shimura and Masashi Tashiro. He took over as lead vocalist of Rats & Star during Masayuki Suzuki's solo concert tour. He appears in some Japanese television programs as a performer. He was disappointed by Masashi Tashiro's arrest. He also said to Tashiro in public, "It's disappointing. Please atone for your crimes and thoroughly cleanse your body and soul" following Tashiro's retirement from the entertainment world.
Minoru Sano (佐野 実, Sano Minoru; April 4, 1951 – April 11, 2014) was a Japanese celebrity chef who specialized in ramen.…Minoru Sano (佐野 実, Sano Minoru; April 4, 1951 – April 11, 2014) was a Japanese celebrity chef who specialized in ramen. He was called the Oni of Ramen in Japan. He founded the Shinasobaya Company and helped run the Shin-Yokohama Ramen Museum. Minoru Sano was born in Totsuka-ku in the city of Yokohama in Kanagawa Prefecture, Japan. He had numerous appearances in the Japanese media. He had many ramen chef disciples. He died of multiple organ failure after suffering with Diabetes for 3 years prior to his death in hospital, surrounded by family.
Mikio Yahara (矢原美紀夫; born April 4, 1947, in Ehime Prefecture) is a Japanese karate expert of the Shotokan style. He…Mikio Yahara (矢原美紀夫; born April 4, 1947, in Ehime Prefecture) is a Japanese karate expert of the Shotokan style. He holds the rank of 10th dan.
Katsuaki Satō (佐藤 勝昭, Satō Katsuaki; born April 4, 1946) is the founder and director of Satojuku Karate, also known as…Katsuaki Satō (佐藤 勝昭, Satō Katsuaki; born April 4, 1946) is the founder and director of Satojuku Karate, also known as Odo (The Champion's Way) karate. The Satojuku honbu (headquarters) is located in Tachikawa, Japan. Satō was born on April 4, 1946, on Sakhalin Island, then part of occupied Japan following the end of World War II. The Soviet Union had invaded the island during the closing stages of the war, but around 300,000 Japanese remained on the island, including Satō's family. In 1947, his family moved to Nakoso, in Fukushima Prefecture. In high school Satō trained-in judo; after graduation, he continued to study it while working full-time as a journalist and studying part-time at Chuo University. However, at the age of 20, he injured his knee and shoulder and had to give up judo. Instead, he began training in Kyokushin karate in 1969. Satō studied karate from Terutomo Yamazaki for whom Satō has expressed much respect. Satō reached the rank of shodan (1st degree black belt) on October 1, 1971. He reached the rank of 3rd dan in karate on March 18, 1973 and he had also attained 3rd dan ranking in judo. He reached the rank of 4th dan in karate on May 1, 1974. Satō excelled in tournament competition. He won the 1971 (Third) and 1974 (Sixth) All-Japan Full Contact Karate Championships (AJFCKC), as well as the 1975 First All-World Full Contact Karate Championships (AWFCKC). He was part of a Kyokushin training group nicknamed "The Seven Samurai," which included Jōkō Ninomiya. Satō defeated Ninomiya on his way to taking the 1975 Kyokushin title. In 1976, he was listed at 5 ft 10+1⁄2 in (179.1 cm) in height and 183 pounds (83 kg) in weight. A later source specifies 1.80 m (5 ft 11 in) and 90 kg (200 lb; 14 st). He then retired from full-time karate training and competition and devoted himself to assisting his family's business. In 1977, Satō started his own karate style, Satojuku, in Mitaka, Tokyo, as a single dojo (training hall). Satojuku has now grown to include dojo in many locations in Japan. Satojuku is known as a similar style to Kyokushin, but emphasizes precise knockdown techniques over techniques designed to injure or "knock-out" one's opponent. The organization sponsors an annual tournament, the All-Japan Point & K.O. Tournament, held at Yoyogi National Gymnasium in Tokyo, Japan, with full-contact, knockdown rules of competition. Describing his art in 1987, Satō wrote, "Odo means the way champions must behave. It is based on humane feelings and courtesy, on being honorable, on being devoid of selfishness or bias. It is the antithesis of any martial art that relies only on force to conquer an opponent."
Takeshi Hayashida (林田 彪, Hayashida Takeshi; born 1944) is a former Japanese politician of the Liberal Democratic Party…Takeshi Hayashida (林田 彪, Hayashida Takeshi; born 1944) is a former Japanese politician of the Liberal Democratic Party (LDP), who served as a member of the House of Representatives in the Diet (national legislature). A native of Nagasu, Kumamoto and graduate of Tokyo University of Agriculture and Technology he joined the Ministry of Construction in 1967. Leaving the ministry, he was elected to the House of Representatives for the first time in 1996. He represented the 2nd District of Kumamoto Prefecture.
Sadahiko Hirose (廣瀬 禎彦; born April 4, 1943 in Shimane Prefecture) is the president of Columbia Music Entertainment. He…Sadahiko Hirose (廣瀬 禎彦; born April 4, 1943 in Shimane Prefecture) is the president of Columbia Music Entertainment. He received both undergraduate and master's degrees from Keio University. Mr. Hirose, who was formerly CEO and President of NetHome, became the CEO of Columbia as of January 1, 2004. Sadahiko Hirose started out his career with IBM in a computer business. He was then engaged in publishing with a venture business named ASCII and later in the video game business with Sega. Not long before accepting the job at Columbia, he had been running a broadband Internet business.
Mitsuhiro Yanagida ForMemRS (柳田充弘, Yanagida Mitsuhiro; born April 4, 1941, in Tokyo) is a Japanese molecular biologist…Mitsuhiro Yanagida ForMemRS (柳田充弘, Yanagida Mitsuhiro; born April 4, 1941, in Tokyo) is a Japanese molecular biologist known for research on cell cycle and chromosome structure using the fission yeast Schizosaccharomyces pombe. He was elected as a foreign member of the Royal Society on 11 May 2000.
Yukiko Takayama (Japanese: 高山 由紀子, Hepburn: Takayama Yukiko; 4 April 1940 – 2 June 2023) was a Japanese screenwriter…Yukiko Takayama (Japanese: 高山 由紀子, Hepburn: Takayama Yukiko; 4 April 1940 – 2 June 2023) was a Japanese screenwriter and director known for Terror of Mechagodzilla, Hoshi no Ko Chobin, Monarch: The Big Bear of Tallac, Hissatsu Shigotonin, and Genji Monogatari: Sennen no Nazo.
Kazuko Hosoki (細木 数子, Hosoki Kazuko; 4 April 1938 – 8 November 2021) was a Japanese fortune teller and writer. She was…Kazuko Hosoki (細木 数子, Hosoki Kazuko; 4 April 1938 – 8 November 2021) was a Japanese fortune teller and writer. She was an author of over 100 books. In addition to her regular celebrity appearances on Japanese television, she was known for her belief that ancestor worship is central to Japanese identity. Hosoki was associated with Six-Star Divination, known in Japanese as Rokusei Senjutsu. Religious studies scholar Yoshihide Sakurai wrote that Hosoki published on the system in the early 1980s and "quickly set off a fortune-telling boom". Guinness World Records lists Hosoki as having written 81 fortune-telling books totaling 34 million copies sold. Netflix's media materials for the 2026 drama Straight to Hell also describe Hosoki as famous for Six-Star Divination.