Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Mitsuhiko Nishimoto | Koyo Seiko Co. | 23 |
| 2 | Masataro Sato | — | 8 |
| 3 | Kunihiro Kitamura | Taisho Pharmaceutical Co. | 4 |
| #4 | Masaki Kasahara | Mcneil-Ppc | 2 |
| #4 | Masako Nakanishi | Sharp Kabushiki Kaisha | 2 |
| #4 | Tasuku Okazaki | — | 2 |
| #4 | Hirokazu Ichiguchi | — | 2 |
| #8 | Shinzo Ushida | Rohm And Haas | 1 |
| #8 | Katsuo Fukumoto | Nuclear Fuel Industries, Limited | 1 |
| #8 | Tateo Jin-Ya | Du Pont-Toray Co. | 1 |
| #8 | Yoshinobu Tanada | Toshiba Ceramics Co. | 1 |
| #8 | Tadahiko Matsuoka | Shikoku Chemicals | 1 |
| #8 | Toshiyuki Fujitomi | Jtekt | 1 |