Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5847819 | Lens meter utilizing three different wavelengths | — | 1998-12-08 |
| 5730518 | Backlighting device | Keiji Kashima, Naoki Yoshida, Osamu Shoji, Takumi Fukunishi | 1998-03-24 |
| 5719668 | Lens-meter for measuring optical characteristics of optical lens | Yoshinori Oana | 1998-02-17 |
| 5442523 | Backlighting device | Keiji Kashima, Naoki Yoshida, Osamu Shoji, Takumi Fukunishi | 1995-08-15 |
| 5176376 | Vibration sheet feeder | Masahiko Igaki, Yoshifumi Nishimoto, Kenichi Kataoka, Koji Kitani, Hiroyuki Seki | 1993-01-05 |
| 5093765 | Back lighting device for a panel | Keiji Kashima, Naoki Yoshida, Osamu Shoji, Takumi Fukunishi | 1992-03-03 |
| 5065999 | Sheet feeding device utilizing vibration waves | Kenichi Kataoka, Yoshifumi Nishimoto, Masahiko Igaki | 1991-11-19 |
| 4937709 | Back lighting device for a liquid crystal panel | Takumi Fukunishi, Osamu Shoji, Naoki Yoshida | 1990-06-26 |