Top Inventors at Okamoto Machine Tool Works All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Eiichi Yamamoto | 7 |
| 2 | Takahiko Mitsui | 7 |
| 3 | Kazuo Kobayashi | 6 |
| #4 | Satoru Ide | 4 |
| #5 | Tsubasa BANDO | 4 |
| #6 | Moriyuki Kashiwa | 3 |
| #7 | Yutaka Yoshida | 3 |
| #8 | Etsuo Fujita | 2 |
| #9 | Kuniyoshi Matsuoka | 2 |
| #10 | Shiho Satake | 2 |
| #11 | Takuo Hirayama | 2 |
| #12 | Tomio Kubo | 2 |
| #13 | Yoshimi Kito | 2 |
| #14 | Hiroaki Kida | 1 |
| #15 | Hirotaka Okonogi | 1 |
| #16 | Hirotsugu Saitou | 1 |
| #17 | Junichi Isono | 1 |
| #18 | Kazuhiro Takaoka | 1 |
| #19 | Katsuhiro Tsuji | 1 |
| #20 | Kazuo Watanabe | 1 |
| #21 | Keiji Tsuchiya | 1 |
| #22 | Norio Hayashi | 1 |
| #23 | Noriyuki Motimaru | 1 |
| #24 | Shigeki Okuyama | 1 |
| #25 | Tetsuyuki Watanabe | 1 |
| #26 | Toshihiro Ito | 1 |
| #27 | Tsuyoshi Toshida | 1 |
| #28 | Tsutomu Yamada | 1 |
| #29 | Yasuhiro Terakubo | 1 |
| #30 | Yoshihiro Terakubo | 1 |
| #31 | Yukio Uehara | 1 |
| #32 | Mutsuo Hosoi | 1 |
| #33 | Akira Ishibashi | 1 |
| #34 | Akinori Yui | 1 |