Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Takayuki Ishizawa | Meiji Seika Kaisha | 9 |
| 2 | Yoshiya Chounan | Sakae Ringyo Co. | 3 |
| 3 | Hiroshi Seo | Fuji Spinning Co. | 2 |
| #4 | Toyokichi Gotou | Newlong Machine Works | 1 |
| #4 | Takayuki; Ishizawa | Takara Co. | 1 |