Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7542579 | Ultrasonic transducer, ultrasonic speaker, acoustic system, and control method of ultrasonic transducer | Kinya Matsuzawa | 2009-06-02 |
| 6633511 | Electronic controlling type mechanical timepiece | Masatoshi Moteki, Kinya Matsuzawa | 2003-10-14 |
| 5632157 | Electric automobile | Issei Yamakoshi | 1997-05-27 |
| 5507153 | Electric motor vehicle | Takeshi Seto | 1996-04-16 |
| 5488837 | Electric automobile | Issei Yamakoshi | 1996-02-06 |
| 5345777 | Electric automobile | Issei Yamakoshi | 1994-09-13 |