Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Takaji Yamamoto | Kanebo, Limited | 2 |
| 2 | Yoshiki Takashige | Kyowa Hakko Kogyo Co. | 1 |
| 2 | Hiroshi Tsumori | Kyowa Hakko Kogyo Co. | 1 |
| 2 | Kazutaka Sakiyama | Toyo Soda Manufacturing Co. | 1 |
| 2 | Hideo Odagiri | Kyowa Hakko Kogyo Co. | 1 |