Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kensuke Masuda | Ricoh Company | 6 |
| 2 | Takashi Nasu | Asahi Yukizai | 3 |
| 2 | Junichi Iwata | Ricoh Company | 3 |
| #4 | Shinobu Kamimura | Asahi Yukizai | 1 |
| #4 | Masateru Kobayashi | Asahi Kasei Kogyo Co. | 1 |
| #4 | Yukinobu Sato | Asahi Yukizai | 1 |
| #4 | Shengli Li | Asahi Organic Chemicals Industry Co. | 1 |
| #4 | Kenji Kohshoh | Asahi Yukizai | 1 |