Showing 1–22 of 22 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Michiei Nakamura | Dainichiseika Color & Chemicals Mfg. Co. | 42 |
| 2 | Masayuki Hosono | Smc | 23 |
| 3 | Hiroyuki Mikami | Hitachi | 22 |
| #4 | Shuuzou Sakurai | Smc | 20 |
| #5 | Tadasu Kawamoto | Smc | 14 |
| #5 | Yoshiyuki Ichizawa | Yoshino Kogyosho Co. | 14 |
| #7 | Norio Ando | Subaru | 10 |
| #8 | Yakudo Tachibana | Nkk Co. | 9 |
| #9 | Kenji Waragai | Smc | 7 |
| #10 | Shin Kiyokawa | Unknown | 6 |
| #10 | Kazuya Nakamichi | Maruzen Oil Co. | 6 |
| #10 | Katsuhiko Odajima | Smc | 6 |
| #13 | Motoshige Ikehata | Shoketsu Kinzoku Kogyo Kabushiki Kaisha | 5 |
| #13 | Naoto Inayama | Smc | 5 |
| #13 | Shigetaka Hoshino | Kanebo, Limited | 5 |
| #16 | Takashi Tozaki | Smc | 4 |
| #16 | Jun-ichi Hiramoto | Smc | 4 |
| #18 | Sakae Suzuki | Honda Motor Co. | 3 |
| #19 | Shunichi Notoyama | Smc | 2 |
| #20 | Satoru Akita | Senju Metal Industry Co. | 1 |
| #20 | Kengi Waragai | Smc | 1 |
| #20 | Nobuo Makishima | Smc | 1 |