Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6556834 | CDMA mobile terminal apparatus | Shigeyuki Kobayashi, Masayuki Enoki, Katsumi Hirai | 2003-04-29 |
| 6122515 | Mobile radio communication system and fixed and mobile units used therefor | Koichi Ito, Kuniyoshi Marui, Jun Kuno | 2000-09-19 |
| 5995813 | Radio telephone and independently controlled booster | Akira Ishikura, Masatoshi Ikeda | 1999-11-30 |
| 5584055 | Adapter unit for adaptively supplying a portable radio telephone with power | Kuniyoshi Murui, Goichi Sato, Takaaki Ishii, Shinji Takachi, Hiroshi Sato | 1996-12-10 |
| 5535433 | Hands-free circuitry providing audio signal adjustment based on speaker volume value | Osamu Kurokawa | 1996-07-09 |
| 5444867 | Adapter unit for adaptively supplying a portable radio telephone with power | Kuniyoshi Marui, Goichi Sato, Takaaki Ishii, Shinji Takachi, Hiroshi Sato | 1995-08-22 |
| 5444306 | Mobile radio telephone apparatus | Makoto Hoshino | 1995-08-22 |
| 5437053 | Radio telecommunication apparatus | Kuniyoshi Marui, Katsumi Shitara, Shinji Takachi | 1995-07-25 |
| 5398281 | Telephone with hands-free operation | Osamu Kurokawa, Takuya Kanazumi | 1995-03-14 |
| 5367556 | Portable radio telephone used with an adaptor unit having a hand-free circuit | Kuniyoshi Marui, Goichi Sato, Hiroshi Sato | 1994-11-22 |
| 5054115 | Radio telephone apparatus | Noboru Koike | 1991-10-01 |
| 4754231 | Automatic control circuitry for a signal power amplifier | — | 1988-06-28 |
| 4500851 | Plural phase lock loop signal regeneration circuit | Naoto Honda | 1985-02-19 |