Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Norimasa Agari | Nippon Thompson Co. | 8 |
| 2 | Kimiyuki Sakai | Gerber Sakai Co. | 4 |
| 3 | Katsumi Hasegawa | Kai R&D Center Co. | 2 |
| #4 | Tetsuo Kayukawa | Miyakawa Industry Co. | 1 |
| #4 | Fujii Hideo | Feather Safety Razor Co. | 1 |
| #4 | Akio Onodera | Ube-Nitto Kasei Co. | 1 |
| #4 | Ido Kiyoshi | Feather Safety Razor Co. | 1 |
| #4 | Yasuyuki Ohira | Shishiai-Kabushikigaisha | 1 |