Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Tadayoshi Nagaoka | Nagaoka International | 4 |
| 2 | Kohji Kawabata | Fujisawa Pharmaceutical Co. | 3 |
| 3 | Kazuhiro Otani | Taihei Machinery Works | 2 |
| #4 | Tadao Nakatsuji | Sakai Chemical Industry Co. | 1 |
| #4 | Ryohei Kashiwara | Unknown | 1 |
| #4 | Koji Kagaya | Kabushiki Kaisha Toshiba | 1 |
| #4 | Toshiyuki Yamashita | Mitsubishi Electric | 1 |
| #4 | Hideyoshi Yamaoka | Sharp Kabushiki Kaisha | 1 |
| #4 | Sadahide Yano | Yugen Kaisha Yano Engineering | 1 |
| #4 | Hideaki Kashiwara | Unknown | 1 |
| #4 | Kazutoshi Akiyama | Orient Chemical Industries Co. | 1 |
| #4 | Takeaki Kashiwara | Unknown | 1 |
| #4 | Makoto Tanio | Honda Motor Co. | 1 |