Top Inventors at Oval Engineering Co.,Ltd. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Masao Misumi | 6 |
| 2 | Naoki Matsubara | 4 |
| 3 | Koji Atsumi | 3 |
| #4 | Yoshiaki Asayama | 3 |
| #5 | Yutaka Ogawa | 3 |
| #6 | Hideo Murakami | 2 |
| #7 | Hideo Numata | 2 |
| #8 | Kuniteru Okuda | 2 |
| #9 | Masami Kabuto | 2 |
| #10 | Naoki Matubara | 2 |
| #11 | Shigeyoshi Nagata | 2 |
| #12 | Shunichi Wada | 2 |
| #13 | Teruki Fukami | 2 |
| #14 | Daijiro Hosogai | 1 |
| #15 | Fumio Yokota | 1 |
| #16 | Hiroyuki Katougi | 1 |
| #17 | Hideo Kumano | 1 |
| #18 | Hiromi Nakamura | 1 |
| #19 | Kakuro Kokubo | 1 |
| #20 | Kazumitu Nukui | 1 |
| #21 | Kenichi Matsuoka | 1 |
| #22 | Kimihiro Ichinose | 1 |
| #23 | Koji Hotta | 1 |
| #24 | Masuhiro Wada | 1 |
| #25 | Nobuyoshi Umeda | 1 |
| #26 | Shingo Gomi | 1 |
| #27 | Toshio Seo | 1 |
| #28 | Yuzirou Nagamori | 1 |
| #29 | Akira Tsukada | 1 |