Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5233644 | Cordless telephone with actuation of off-hook condition by operation of dial key | Masato Yamagata, Takeho Yamada | 1993-08-03 |
| 5220594 | Cordless telephone system having a telephone answering machine function | Masato Yamagata | 1993-06-15 |
| 4720855 | Telephone apparatus | Hiroshi Yasuda, Norio Numata | 1988-01-19 |
| 4700377 | Selectively actuable electronic apparatus | Hiroshi Yasuda, Satoshi Yokoya, Jon Strom | 1987-10-13 |