Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347585 | Sound attenuating system | Takuji Mori, Shuntaro Murakami | 1994-09-13 |
| 5257316 | Acoustic conductance and silencer utilizing same | Hiroaki Takeyama, Takuji Mori | 1993-10-26 |