Top Inventors at Mamiya-Op Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroshi Sugawara | 3 |
| 2 | Kazutaka Yamamoto | 3 |
| 3 | Noboru Yazaki | 3 |
| #4 | Seiichiro Ishijima | 3 |
| #5 | Tadashi Oshimi | 3 |
| #6 | Koji Takahashi | 2 |
| #7 | Tomoji Utsugi | 2 |
| #8 | Kazuo Furukawa | 1 |
| #9 | Nobuhiko Suzuki | 1 |
| #10 | Akira Unosawa | 1 |