Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263010 | Spread spectrum communication apparatus | Akiko Naruse, Ken Nakamura | 2001-07-17 |
| 5943614 | Mobile radio communication device using plurals authentication parameters | Takashi Sakagawa | 1999-08-24 |
| 5920554 | Mobile station apparatus used in CDMA cellular radio system and spread code synchronization method therefor | Ken Nakamura | 1999-07-06 |
| 5841862 | Mobile radio communications apparatus | Masayuki Tanaka, Masatomo Kanbara | 1998-11-24 |
| 5802039 | Mobile radio communication apparatus with synchronized reception recovering function | Naoyuki Wakabayashi, Ken Nakamura | 1998-09-01 |
| 5710986 | Dual mode radio communication apparatus having function of selectively designating analog or digital mode | Takumi Haga, Naoyuki Wakabayashi, Takashi Sakagawa | 1998-01-20 |
| 5566358 | Mobile radio communication apparatus for registering a location | Takashi Sakagawa | 1996-10-15 |
| 5564077 | Dual mode radio communication apparatus having function of selectively designating analog or digital mode | Takumi Haga, Naoyuki Wakabayashi, Takashi Sakagawa | 1996-10-08 |
| 5459728 | Radio communication apparatus including transmission error control | Yuka Yoshioka | 1995-10-17 |
| 5404579 | Dual mode mobile radio communication apparatus with function for transmitting remote control data | Naoyuki Wakabayashi | 1995-04-04 |
| 5390365 | Radio communication apparatus having a received signal strength measuring function | Masayuki Enoki | 1995-02-14 |
| 4866415 | Tone signal generating system for use in communication apparatus | Ryohei Oba | 1989-09-12 |