Top Inventors at Itoki Kosakusho Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Shunicti Takamatsu | 2 |
| 2 | Shigeki Tsuchida | 2 |
| 3 | Hiroshi Iwabuchi | 1 |
| #4 | Hiroji Kubo | 1 |
| #5 | Katsunori Hama | 1 |
| #6 | Masao Konishi | 1 |
| #7 | Motohiro Nakagawa | 1 |
| #8 | Nobuyuki Oku | 1 |
| #9 | Sabarou Sumi | 1 |
| #10 | Shunichi Takamatsu | 1 |
| #11 | Tatsuo Fujii | 1 |
| #12 | Yoshiaki Shishido | 1 |
| #13 | Yoichi Tabata | 1 |
| #14 | Tugumi Matimura | 1 |
| #15 | Akihiro Okada | 1 |