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was a Japanese aircraft/automotive engineer. He graduated from Tokyo Imperial University in 1936 and joined Nakajima Aircraft Company in the same year. He improved Nakajima Sakae engine for Mitsubishi A6M Zero, Nakajima Ki-43 and other planes. He was the chief designer of Nakajima Homare engine for Nakajima Ki-84, Nakajima C6N, Kawanishi N1K and others.〔( Zero inspired today’s innovations - Warplane's engineers later excelled in auto, rocket sectors ) The Japan Times Jan 14, 2004〕〔(“From Aircraft To Automobile : Memoirs of an Engine Designer” by Ryoichi NAKAGAWA ) from CiNii Paper website, originally published by The Japan Society of Mechanical Engineers (JSME) Feb. 5, 1982 (Japanese)〕〔MAEMA, Takanori (2007), “Homare, the Engine of Tragedy – the Anguish of a Genius Engine Designer, Ryoichi Nakagawa", Soshisha Publishing Co., Ltd., (Japanese) ISBN 978-4-7942-1513-0〕 After the World War II, Nakajima Aircraft Company was disbanded and was banned to produce aircraft by the GHQ. They were divided into twelve companies. Two of them were Fuji Heavy Industries (Subaru) and Fuji Precision Industries (Prince Motors). Nakagawa was appointed the senior engineering manager of Prince and led all the Prince engineers.〔KATSURAGI, Yoji (2003), “The Beam of Light of Prince Motor Company”, Grand Prix Book Publishing Co., Ltd., (Japanese) ISBN 4-87687-251-1〕 He supervised all the Prince vehicles projects including Skyline, Gloria, R380, S390P-1 Royal limousine and others.〔〔 After the merger of Prince and Nissan in August 1966, he was promoted to the senior executive director of Nissan in 1969.〔 Later he became the chairman of the Society of Automotive Engineers of Japan, Inc. (JSAE). He was also elected to the National Academy of Engineering in 1990.〔( NAE Member Dr. Ryoichi Nakagawa ) NAE Official Website〕 He died on July 30, 1998.〔UEDA, Masaaki, HIRAYAMA, Ikuo, NISHIZAWA, Junichi and MIURA, Shumon "Japanese Biographical Dictionary" Kodansha Ltd., Dec. 6, 2001, (Japanese) ISBN 4-06-210800-3〕 ==See also== *Nakajima Aircraft Company *Nakajima Sakae *Nakajima Homare *Mitsubishi A6M Zero *Nakajima Ki-43 *Nakajima Ki-84 *Nakajima C6N *Kawanishi N1K *Prince Motor Company *Prince G engine *Prince Skyline *Prince Gloria *Prince R380 *Prince Royal *Jiro Tanaka *Shinichiro Sakurai *Nissan *Nissan S20 engine *Nissan R382 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ryoichi Nakagawa」の詳細全文を読む スポンサード リンク
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