1936
Head of Army Ordenance Factory, Tokyo Arsenal
1936
- 1939
Chief of Firearms Section, Ordnance Bureau, Ministry of War
1939
- 1942
Head of Ordnance Bureau, Ministry of War
1939
- 1944
Head of Field Ordnance, Imperial Headquarters
1942
- 1944
Attached to Army Ordnance Administrative Headquarters
1944
- 1945
Head of Army Ordnance Administrative Headquarters