Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5535436 | Portable transceiver and ESN transfer system therefor | Masahiro Ishigami | 1996-07-09 |
| 5430796 | Auxiliary attenuator arrangement for use in voice-switched speakerphone and method of selectively inserting communication loss in speakerphone paths | Motoyoshi Komoda | 1995-07-04 |
| 5257400 | Cellular mobile telephone system | — | 1993-10-26 |
| 5054061 | Hands-free telephone | — | 1991-10-01 |
| 4982425 | Hands-free telephone | — | 1991-01-01 |
| 4872003 | Serial interface system flexibly applicable to a one-to-plurality connection | — | 1989-10-03 |
| 4339727 | Waveform converting circuit | Kouzou Kage | 1982-07-13 |
| 4288751 | Wave translating circuit | Kouzou Kage, Kazuhiro Ikeda, Yasuo Sato | 1981-09-08 |