Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5422765 | Inverter device attenuating in-phase harmonic components of an oscillating output signal | Akira Egawa | 1995-06-06 |
| 5113407 | Discharge tube for laser oscillator | Akira Egawa | 1992-05-12 |
| 4962585 | Connective jumper and method of manufacturing the same | — | 1990-10-16 |
| 4907991 | Connective jumper | — | 1990-03-13 |
| 4306483 | Damper assembly for pianos | — | 1981-12-22 |
| 4253370 | Keyboard musical instrument | — | 1981-03-03 |
| 4226158 | Damper assembly for keyboard musical instruments | Hiroyoshi Takahashi | 1980-10-07 |