Showing 1–21 of 21 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kyoichi Kaneko | Daiwa Seiko Co. | 7 |
| 2 | Shinichi Iwama | Daiwa Seiko Co. | 2 |
| 2 | Shoji Takao | Terumo Kabushiki Kaisha | 2 |
| 2 | Yasumori Muta | Daiwa Golf Co. | 2 |
| 2 | Shunnosuke Watanabe | Agro-Kanesho Co. | 2 |
| 2 | Mitsuaki Kohyama | Kabushiki Kaisha Toshiba | 2 |
| #7 | Sakashi Yoshihashi | — | 1 |
| #7 | Shin-ichi Iwama | Daiwa Seiko Co. | 1 |
| #7 | Toshihiro Fujikawa | Fuji Engineering Co. | 1 |
| #7 | Toyoji Umeda | Daiwa Seiko Co. | 1 |
| #7 | Kaguya Sasaki | Unknown | 1 |
| #7 | Youichi Imazeki | — | 1 |
| #7 | Rokuro Akahira | Agro-Kanesho Co. | 1 |
| #7 | Shuzo Abe | Ube Industries | 1 |
| #7 | Noboru Oyama | Terumo Kabushiki Kaisha | 1 |
| #7 | Yoshiaki Sakai | Teac | 1 |
| #7 | Tsugio Nomoto | Yoshino Kogyosho Co. | 1 |
| #7 | Toshihiko Hirabayashi | Fujitsu Limited | 1 |
| #7 | Shinji Kamimaru | Subaru | 1 |
| #7 | Kiyoji Nakajima | Diesel Kiki Co. | 1 |
| #7 | Takao Ishido | Nissan Motor Co. | 1 |