Showing 1–20 of 20 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Koe Nakajima | Nippon Steel | 9 |
| 2 | Kazuhiro Tano | Nippon Steel | 6 |
| 3 | Yoshiaki Ohtani | — | 5 |
| 3 | Keita FUJI | Seiko Epson | 5 |
| #5 | Masaru Shimoyama | Mitsubishi Chemical | 4 |
| #6 | Yoshikatsu Minami | — | 3 |
| #6 | Hidekichi Hashimoto | Mitsubishi Chemical | 3 |
| #8 | Takamitsu Ishii | Nec | 2 |
| #8 | Hiroto Arata | Nippon Steel | 2 |
| #8 | Yukio Nakamori | Nippon Steel | 2 |
| #8 | Chikayuki Urashima | Nippon Steel | 2 |
| #12 | Shuichi Yura | Fuji Spinning Co. | 1 |
| #12 | Tsugio Matsuno | Daikin Industries | 1 |
| #12 | Eigi Shibata | Sumitomo Rubber Industries | 1 |
| #12 | Sigeki Harada | — | 1 |
| #12 | Yosisuke Nagano | Kurosaki Refractories Co. | 1 |
| #12 | Masanobu Minagawa | — | 1 |
| #12 | Shinogu Tamukai | Nippon Steel | 1 |
| #12 | Michihiro Inokuchi | Mitsubishi Chemical | 1 |
| #12 | Mikio Usa | — | 1 |