Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kazuo Usui | Nissei Plastic Industrial Co. | 3 |
| 2 | Fumio Miyajima | Apic Yamada | 2 |
| 2 | Hitoshi Saitoh | Yazaki | 2 |
| #4 | Yasuhiko Miyashita | Apic Yamada | 1 |
| #4 | Tsukasa Yoda | Nissei Plastic Industrial Co. | 1 |
| #4 | Takashi Hakoda | Nissei Plastic Industrial Co. | 1 |