Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5227099 | Method for printing on synthetic resin molded body and headphone housing on which printing has been made by the method | Yoshiyuki Kamon, Takayuki Ishii | 1993-07-13 |
| 5224171 | Method for printing on synthetic resin molded body and headphone housing on which printing has been made by the method | Yoshiyuki Kamon, Takayuki Ishii | 1993-06-29 |
| 4981194 | Electro-acoustic transducer | Yoshiyuki Kamon, Makoto Yamagishi | 1991-01-01 |