Showing 1–19 of 19 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Shusaku Ogawa | Mita Industrial Co. | 2 |
| 1 | Masakazu Iwai | Green Cross | 2 |
| 1 | Takeaki Kashiwara | Unknown | 2 |
| 1 | Ryohei Kashiwara | Unknown | 2 |
| 1 | Hideaki Kashiwara | Unknown | 2 |
| 1 | Kensaku Nakamura | Koyo Seiko Co. | 2 |
| #7 | Toshiya Morie | Dainippon Pharmaceutical Co. | 1 |
| #7 | Mikiharu Imazaike | Panasonic | 1 |
| #7 | Kohji Kawabata | Fujisawa Pharmaceutical Co. | 1 |
| #7 | Koji Iwai | Kubota | 1 |
| #7 | Tadayoshi Nagaoka | Nagaoka International | 1 |
| #7 | Seiei Sasatani | Ono Pharmaceutical Co. | 1 |
| #7 | Yoshio Tani | Fujitsu Limited | 1 |
| #7 | Tadao Nakatsuji | Sakai Chemical Industry Co. | 1 |
| #7 | Kiyoshi Hataura | Kubota | 1 |
| #7 | Minoru Sasabe | Osaka Sanso Kogyo | 1 |
| #7 | Tetsuro Ikeshima | Kubota | 1 |
| #7 | Yasunori Suita | Daikin Industries | 1 |
| #7 | Jun Yoshikado | Imanishi Kinzoku Kogyo Kabushiki Kaisha | 1 |