Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5602927 | Vehicle internal noise reduction system and the method thereof | Manpei Tamamura, Eiji Shibata | 1997-02-11 |
| 5581619 | Vehicle internal noise reduction system and method | Eiji Shibata, Manpei Tamamura | 1996-12-03 |
| 5553154 | Vehicle internal noise reduction system and the method thereof | Manpei Tamamura, Eiji Shibata | 1996-09-03 |
| 5493616 | Vehicle internal noise reduction system | Eiji Shibata, Manpei Tamamura | 1996-02-20 |
| 5488667 | Vehicle internal noise reduction system | Manpei Tamamura, Eiji Shibata | 1996-01-30 |
| 5485523 | Active noise reduction system for automobile compartment | Manpei Tamamura, Kazuyuki Kondo, Keitaro Yokota | 1996-01-16 |
| 5473699 | Vehicle internal noise reduction system | Manpei Tamamura, Eiji Shibata | 1995-12-05 |
| 5426704 | Noise reducing apparatus | Manpei Tamamura, Eiji Shibata, Manabu Nohara | 1995-06-20 |