Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Shun Oya | Seiko Epson | 68 |
| 2 | Katsuko Aoki | Seiko Epson | 23 |
| 3 | Nobuhiro Karito | Seiko Epson | 15 |
| #4 | Tsutomu Isono | Hitachi | 10 |
| #5 | Kenichi Okuhara | Seiko Epson | 9 |
| #6 | Tsukasa Sakurada | Unknown | 5 |
| #7 | Eisuke Ishihara | Kumiai Chemical Industry Co. | 3 |
| #8 | Keiko Motomatsu | New Japan Chemical Co. | 2 |
| #9 | Yutaka Wakiyama | Asahi Kasei Kogyo Co. | 1 |
| #9 | Toyomi Tanaka | Nakajima Seisakusho Co. | 1 |
| #9 | Hiroshi Sato | Akita Prefecture | 1 |
| #9 | Genji Akiba | Tanaka Kogyo Co. | 1 |