Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Tadashi Sotomura | Sumitomo Electric Industries | 4 |
| 2 | Shinji Soma | Jtekt | 2 |
| 2 | Masaru Umemoto | Tsubakimoto Chain | 2 |
| 2 | Itaru Kawabata | Sharp Kabushiki Kaisha | 2 |
| #5 | Fukuo Fukudome | Koyo Seiko Co. | 1 |
| #5 | Ken-ichi Sugita | Shionogi & Co. | 1 |
| #5 | Nobuo Nakano | Riken Keiki Co. | 1 |
| #5 | Yoshihiko Hirata | Saraya Co. | 1 |
| #5 | Masakazu; Nishino | Sumitomo Electric Industries | 1 |
| #5 | Junji Aoki | Horiba | 1 |
| #5 | Atsunori Okada | Panasonic | 1 |
| #5 | Mikio Shigematsu | Eight Holdings | 1 |