Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Norio Chiba | Seiko Instruments | 3 |
| 1 | Tetsuo Watanabe | Ricoh Company | 3 |
| 3 | Naoyuki Morimoto | Sekisui Chemical Co. | 2 |
| 3 | Shigeru Nagasawa | Konishi Co. | 2 |
| #5 | Takako Kawabe | Kureha Kagaku Kogyo | 1 |
| #5 | Shin Tsuda | Canon | 1 |
| #5 | Muneharu Ohara | Mitsui Mining & Smelting Co. | 1 |
| #5 | Harutami Yamada | Tanabe Seiyaku Co. | 1 |