Top Inventors at Daiichi Kosho All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroshi Mino | 4 |
| 2 | Masao Toyosawa | 4 |
| 3 | Hideo Yamamoto | 2 |
| #4 | Mikio Kitano | 1 |
| #5 | Takatsugu Uragami | 1 |
| #6 | Yoshikata Yamamoto | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroshi Mino | 4 |
| 2 | Masao Toyosawa | 4 |
| 3 | Hideo Yamamoto | 2 |
| #4 | Mikio Kitano | 1 |
| #5 | Takatsugu Uragami | 1 |
| #6 | Yoshikata Yamamoto | 1 |