Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7516810 | Industrial vehicle | Michihiro Miura, Tadashi Yamada | 2009-04-14 |
| 7456730 | Anomaly judgment system for operator detection device and process for judging normality/anomaly of operator detection device | Kenji Suga, Toshikazu Kamiya, Tadashi Yamada, Toshinari Fukatsu | 2008-11-25 |
| 6721427 | Analog filter for digital audio system and audio amplifier for using the same | — | 2004-04-13 |
| 5912585 | Vacuum tube audio amplifying circuit | — | 1999-06-15 |
| 5343477 | Data processing system with data transmission failure recovery measures | — | 1994-08-30 |
| 4732068 | Cutting device | Ryoichi Yasuda | 1988-03-22 |
| 4713760 | Transaction processing system for separate registration and settlement functions | Takao Yamaguchi | 1987-12-15 |