Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Tadashi Kawaguchi | Komatsu | 4 |
| 2 | Yasuo Akimoto | Kyosan Denki Co. | 2 |
| 3 | Masami Takeuchi | Nissan Motor Co. | 1 |
| 3 | Naoya Mieda | Sanoh Industrial Co. | 1 |
| 3 | Kaoru Yaguchi | Kaneka | 1 |
| 3 | Masami Nishikawa | Sumitomo Rubber Industries | 1 |
| 3 | Shinji Takakura | Kabushiki Kaisha Toshiba | 1 |
| 3 | Kazuhiro Ezure | Sanoh Industrial Co. | 1 |
| 3 | Yuichirou Takashima | Fujitsu Limited | 1 |
| 3 | Shigehiro Kanou | Kaneka | 1 |
| 3 | Fumihito Tonomura | Kaneka | 1 |
| 3 | Masao Motonaga | Sanoh Industrial Co. | 1 |
| 3 | Daisuke Matoba | Mitsui Chemicals Tohcello | 1 |