Showing 1–15 of 15 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kazuo Tsuji | Sumitomo Electric Industries | 2 |
| 1 | Keishi Kubo | Ricoh Company | 2 |
| 3 | Katsuyoshi Aiso | Toshiba Kikai | 1 |
| 3 | Hiroyuki Kosuda | Toho Beslon Co. | 1 |
| 3 | Eiichi Kawamura | Ricoh Company | 1 |
| 3 | Yoshihiro Mitsui | Canon | 1 |
| 3 | Hiroshi Sami | Toyota | 1 |
| 3 | Yasukiyo Fuke | Toshiba Kikai | 1 |
| 3 | Yasumasa Ohba | Sharp Kabushiki Kaisha | 1 |
| 3 | Teturo Imai | Meidensha | 1 |
| 3 | Tsugikuma Minamizono | — | 1 |
| 3 | Katuji Itikawa | Hitachi | 1 |
| 3 | Mitsuharu Satoh | Toshiba Kikai | 1 |
| 3 | Tsutomu Itoh | Onoda Cement Co. | 1 |
| 3 | Masayoshi Usui | Usui Kokusai Sangyo Kaisha Limited | 1 |