Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D347220 | Cordless telephone | — | 1994-05-24 |
| D334043 | Combined earphone and remote controller | Shuhei Taniguchi, Takefumi Daidoh | 1993-03-16 |
| D310364 | Combined cassette tape recorder and radio receiver | Toshiyuki Matuso | 1990-09-04 |