Jiro Kase (加瀬 次郎, Kase Jirō; born 27 December 1954) is a retired Japanese judoka. Kase is from Sumida, Tokyo and began judo at Kodokan at the age of a 4th grader. He belonged to Keiyo Gas Co., Ltd after graduation from Meiji University in 1977. In 1981, he won a silver medal at the World Championships held in Maastricht. He also participated All-Japan Championships 5 times from 1977 to 1985. As of 2010, Kase coaches judo at Keiyo Gas.
Source: “Jiro Kase”, English Wikipedia (CC BY-SA 4.0), excerpt