Showing 1–25 of 25 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kenji Hayashi | Seiko Epson | 246 |
| 2 | Koichiro Yamashita | Fujitsu Limited | 127 |
| 3 | Hiroyuki Ishida | Koito Manufacturing Co. | 122 |
| #4 | Kenji Goto | Toyota | 91 |
| #5 | Naohiro Hirose | Ibiden Co. | 63 |
| #6 | Mitsuo Kinoshita | Takemoto Yushi | 56 |
| #7 | Hiroshi Miyajima | Olympus | 39 |
| #7 | Hiromasa Fujita | Olympus | 39 |
| #9 | Osamu Yamanaka | Toyoda Gosei Co. | 25 |
| #10 | Toshiyuki Imai | Sanyo Semiconductor Co. | 21 |
| #11 | Tsutomu Sakai | Toyota | 20 |
| #12 | Kouichi Takagi | Sumitomo Wiring Systems | 17 |
| #12 | Haruo Iwahashi | Konishiroku Photo Industry Co. | 17 |
| #14 | Taizo Nakamura | Mitutoyo | 16 |
| #15 | Takeshi FUKUTOMI | Olympus | 14 |
| #16 | Tatsuro Yamamoto | Olympus | 13 |
| #17 | Kenji Tsuru | Konica Minolta | 12 |
| #18 | Takayuki Otani | Toyo Denso Kabushiki Kaisha | 11 |
| #19 | Yoshihiro Higuchi | Sumitomo Electric Industries | 10 |
| #20 | Shoichi Ieoka | Toyota Industries | 9 |
| #20 | Keita Gunji | Omron | 9 |
| #22 | Satoshi Shimao | Konica Minolta | 8 |
| #22 | Satoru Osawa | Konica Minolta | 8 |
| #24 | Takeshi Toru | Teijin Limited | 7 |
| #25 | Tohru Honda | Flosfia | 2 |