Top Inventors at Mitsukan Group All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Shigeru Nakano | 3 |
| 2 | Hidetsugu Goto | 2 |
| 3 | Hiroyuki Sorimachi | 1 |
| #4 | Junichi Maruyama | 1 |
| #5 | Katsuhiko Kitamoto | 1 |
| #6 | Keiko Abe | 1 |
| #7 | Kenichiro Nakajima | 1 |
| #8 | Mikiya Kishi | 1 |
| #9 | Tazuko Uenoyama | 1 |
| #10 | Tomiko Asakura | 1 |