Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Fumio Miyajima | Apic Yamada | 5 |
| 2 | Suinobu Kubota | Nissei Plastic Industrial Co. | 2 |
| 3 | Tsuyoshi Tomiyama | Kotobuki Seiyaku Co. | 1 |
| 3 | Akira Tomiyama | Kotobuki Seiyaku Co. | 1 |
| 3 | Kazuo Usui | Nissei Plastic Industrial Co. | 1 |
| 3 | Yukio Yanagimachi | A.K. Technical Laboratory | 1 |
| 3 | Kiyoto Takizawa | Nissei Plastic Industrial Co. | 1 |
| 3 | Atsuo Matsui | Nissei Plastic Industrial Co. | 1 |
| 3 | Katsuyuki Shimizu | — | 1 |
| 3 | Tokiro Kogane | Nissei Plastic Industrial Co. | 1 |