Showing 1–14 of 14 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hiromu Mukai | Minolta | 7 |
| 2 | Matazaemon Uchida | Nihon Nohyaku Co. | 3 |
| 2 | Nobuyuki Hayashi | Hitachi Chemical Company | 3 |
| 2 | Katsumi Sakitani | Daikin Industries | 3 |
| #5 | Hisatake Fujioka | Kubota | 1 |
| #5 | Takashi Okuyama | Yamaha Marine | 1 |
| #5 | Shinichi Narita | Orient Chemical Industries Co. | 1 |
| #5 | Koichi Tagawa | Maeda Industries | 1 |
| #5 | Tsutomu Mabuchi | Nihon Nohyaku Co. | 1 |
| #5 | Masakiyo Yoshimura | Shionogi & Co. | 1 |
| #5 | Kohei Obatake | Fuji Oil Holdings | 1 |
| #5 | Fukunosuke Kawashita | — | 1 |
| #5 | Katsumasa Okawa | Nihon Nohyaku Co. | 1 |
| #5 | Motonobu Matsuda | Minolta | 1 |