Issued Patents All Time
Showing 126–136 of 136 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5767939 | Eyeglass lens | Toshiharu Katada, Osamu Yokoyama | 1998-06-16 |
| 5644374 | Variable focus type eyesight correcting apparatus | Hiroyuki Mukaiyama, Kazutoshi Kato | 1997-07-01 |
| 5479220 | Eyeglass lens | Toshiharu Katada, Osamu Yokoyama | 1995-12-26 |
| 5442710 | Body-felt sound unit and vibration transmitting method therefor | — | 1995-08-15 |
| 5250798 | Solid state image sensor device with microlenses | Yasuo Iizuka | 1993-10-05 |
| 5076260 | Sensible body vibration | — | 1991-12-31 |
| 4750208 | Audio-band electromechanical vibration converter | Kyota Yamada | 1988-06-07 |
| 4680720 | Dot interpolation control system | Jiro Yoshii, Hiroshi Ishii | 1987-07-14 |
| 4506379 | Method and system for discriminating human voice signal | — | 1985-03-19 |
| 4495638 | Audio-band electro-mechanical vibration converter | Kyota Yamada | 1985-01-22 |
| 4354067 | Audio-band electromechanical vibration converter | Kyota Yamada | 1982-10-12 |