Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5251248 | Telephone network having personal numbers for position-independent | Hiroshi Tokunaga, Noriaki Yoshikawa, Hidetsugu Kobayashi, Yoshiyuki Yasuda, Tatsuo Nohara | 1993-10-05 |
| 4550638 | Portable keyboard-type musical instrument | Kenkichi Kaneko, Kensaku Hakamata, Satoru Hayashi, Takayuki Goshima, Masakazu Matsumoto | 1985-11-05 |