Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9466311 | Audio signal processing circuit and electronic device using the same | Shinji Yamagami | 2016-10-11 |
| 8664117 | Method for manufacturing semiconductor device using anisotropic etching | Yusuke Hirayama, Hideyuki Hatoh | 2014-03-04 |
| 8654991 | Audio signal amplifier circuit | Akinobu Kawamura | 2014-02-18 |
| D478537 | Rearview mirror for vehicles | — | 2003-08-19 |
| 4467676 | Bolt tightening device having auxiliary handle | Seiji Ikeda, Shozo Matsumura | 1984-08-28 |
| D270809 | Power wrench | Seiji Ikeda | 1983-10-04 |
| 4403529 | Device for fastening bolts | Seiji Ikeda | 1983-09-13 |