Top Inventors at Ricoh Optical Industries Co. All Time
Showing 1–28 of 28 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Kazuhiro Umeki | 5 |
| 2 | Osamu Nagase | 3 |
| 3 | Hideaki Hirai | 2 |
| 3 | Ryuhei Amano | 2 |
| 3 | Shosen Sato | 2 |
| 3 | Takashi Ikeda | 2 |
| 3 | Yoshitsugu Kohno | 2 |
| 3 | Akira Takahashi | 2 |
| #9 | Hiroyuki Anbe | 1 |
| #9 | Hiroaki Takahashi | 1 |
| #9 | Hiroshi Terui | 1 |
| #9 | Ichiroh Oikawa | 1 |
| #9 | Katsuya Kusaka | 1 |
| #9 | Kazuhisa Takahashi | 1 |
| #9 | Kenji Koyama | 1 |
| #9 | Kunihiko Araki | 1 |
| #9 | Masaharu Odashima | 1 |
| #9 | Masaaki Sato | 1 |
| #9 | Mikio Kobayashi | 1 |
| #9 | Mitsuhiro Kudou | 1 |
| #9 | Shigeyuki Furuta | 1 |
| #9 | Shinichi Okuno | 1 |
| #9 | Shigeru Umeki | 1 |
| #9 | Toshihiro Kamei | 1 |
| #9 | Tomoya Kitajima | 1 |
| #9 | Yoshitsugu Kono | 1 |
| #9 | Yoshio Serikawa | 1 |
| #9 | Amane Shikanai | 1 |