Top Inventors at Mitsui O.S.K. Lines All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kazuyuki Ouchi | 2 |
| 2 | Shizuo Fujimoto | 2 |
| 3 | Toshio Yamashita | 2 |
| #4 | Fuminobu Kondoh | 1 |
| #5 | Hiroshi Amatsu | 1 |
| #6 | Hisaaki Yokota | 1 |
| #7 | Ken Hasegawa | 1 |
| #8 | Keitaro Hayami | 1 |
| #9 | Koji Nishiyama | 1 |
| #10 | Masatoshi Sasaki | 1 |
| #11 | Naomi Kokubo | 1 |
| #12 | Noriyuki Tomono | 1 |
| #13 | Shingo Takamatsu | 1 |
| #14 | Shoichi Yokochi | 1 |
| #15 | Syozoh Kameyama | 1 |
| #16 | Takanori Hisajima | 1 |
| #17 | Tatsuro Sasaki | 1 |
| #18 | Tatsuroh Sasaki | 1 |
| #19 | Takayuki Usui | 1 |
| #20 | Teruyuki Tashiro | 1 |
| #21 | Toru Muramatsu | 1 |
| #22 | Yasuyuki Seike | 1 |
| #23 | Yoshinori Akagawa | 1 |
| #24 | Yoichiro Ueno | 1 |
| #25 | Yutaka Hachinohe | 1 |
| #26 | Yukihito Morimoto | 1 |
| #27 | Akira Hasegawa | 1 |
| #28 | Akihide Imamura | 1 |