Issued Patents All Time
Showing 76–84 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5023913 | Apparatus for changing a sound field | Katsuaki Satoh, Seiichi Ishikawa, Mitsuhiko Serikawa, Akihisa Kawamura, Hikari Hashimoto | 1991-06-11 |
| 4968074 | Automatic door latching system | Jun Yamagishi, Kouichi Shiota | 1990-11-06 |
| 4902067 | Air spoiler retracting device | Kunio Sakai, Hiromitsu Nishikawa | 1990-02-20 |
| 4896285 | Calculation of filter factors for digital filter | Seiichi Ishikawa, Katsuaki Satoh, Akihisa Kawamura | 1990-01-23 |
| 4888808 | Digital equalizer apparatus enabling separate phase and amplitude characteristic modification | Seiichi Ishikawa, Katsuaki Satoh, Akihisa Kawamura | 1989-12-19 |
| 4867220 | Sunshade assembly of motor vehicle | Hisato Tatsumi | 1989-09-19 |
| 4762348 | Electric door lock system | — | 1988-08-09 |
| 4758037 | Movable front spoiler device for automotive vehicle | Hiroshi Suzuki, Tsuguhiro Yamada | 1988-07-19 |
| 4283155 | Apparatus for connection of operating rod | Haruo Yamazaki, Shigeru Kimura | 1981-08-11 |