Top Inventors at Sumiden Opcom All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kazuhiko Arimoto | 12 |
| 2 | Hiroshi Suganuma | 10 |
| 3 | Hiroaki Takimoto | 10 |
| #4 | Hiroshi Yokota | 5 |
| #5 | Junichi Yoshikawa | 4 |
| #6 | Tomoyuki Hattori | 4 |
| #7 | Hidetoshi Takasugi | 2 |
| #8 | Keiji Osaka | 2 |
| #9 | Masumi Fukuma | 2 |
| #10 | Takeo Komiya | 2 |
| #11 | Yasuo Asano | 2 |
| #12 | Eisuke Sasaoka | 1 |
| #13 | Hidetoshi Hongu | 1 |
| #14 | Hisanobu Tanigawa | 1 |
| #15 | Kazuo Iiduka | 1 |
| #16 | Kazuo Iizuka | 1 |
| #17 | Masumi Fukai | 1 |
| #18 | Masahiro Hamada | 1 |
| #19 | Noriyuki Ikuta | 1 |
| #20 | Nobuo Tomita | 1 |
| #21 | Takatsuga Yuasa | 1 |
| #22 | Tomomi Sano | 1 |
| #23 | Toshiyuki Watanabe | 1 |
| #24 | Yoshiharu Okawa | 1 |