Mr. Sadao Ohba
Businessman
| 1922 | Born in Shizuoka |
| 1925 | Born in Shizuoka (wife: Toshiko) |
| 1969 | Came to the UK as Mitsui & Co. Ltd staff |
| 1979 | Left Mitsui and found a management consultancy |
| 1995 | Back to Japan |
| 2014 | Wife Toshiko died in Tokyo |
| 1922 | Born in Shizuoka |
| 1925 | Born in Shizuoka (wife: Toshiko) |
| 1969 | Came to the UK as Mitsui & Co. Ltd staff |
| 1979 | Left Mitsui and found a management consultancy |
| 1995 | Back to Japan |
| 2014 | Wife Toshiko died in Tokyo |
