Lieutenant-General
* 2nd of March 1894
†
(渡辺甲一)
(渡邊甲一)
(わたなべ こういち)
| 1938-03-01 | Colonel |
| 1941-08-25 | Major-General |
| 1945-03-01 | Lieutenant-General |
| 1936-12-01 | – | 1938-12-10 | Staff Officer, Army Medical School |
| 1938-12-10 | – | 1941-06-15 | Chief of Hygiene Section, Medical Bureau, Ministry of War |
| 1941-06-15 | – | 1942-07-01 | Chief of Medical Section, 12th Army |
| 1942-07-01 | – | 1943-02-20 | Executive Officer, Army Medical School |
| 1943-07-20 | – | 1945-09-XX | Head of 8th Army Aviation Technical Research Institute |
| 1946-03-31 | Retired |