Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5761620 | Private network system and method of transferring an incoming call | Yohichi Ogawa | 1998-06-02 |
| 5521968 | Call charging method in radio telephone system and radio telephone system employing the same method | Yohichi Ogawa | 1996-05-28 |
| 5479483 | Private radio system for delivering incoming calls to a mobile subscriber | Yohichi Ogawa | 1995-12-26 |
| 5425083 | Call charging method in radio telephone system and radio telephone system employing the same method | Yohichi Ogawa | 1995-06-13 |
| 5379451 | Mobile communication system and location registration method in mobile communication system | Arata Nakagoshi, Hideya Suzuki, Yoshinobu Yamamoto, Isao Shimbo, Hiroshi Kuwahara | 1995-01-03 |
| 5353281 | Intermittenceless switching system | Hiroshi Kuwahara, Kazuhiro Suzuki, Toshikazu Sasa, Kenzo Urabe, Arata Nakagoshi +3 more | 1994-10-04 |
| 5301225 | Method and system for dynamically regulating a power saving period within a radio telecommunication system | Kazuhiro Suzuki, Kenzo Urabe, Yoshinobu Yamamoto, Hideya Suzuki | 1994-04-05 |
| 5214694 | Scramble signal transmission system for earth station of communication satellite | Fujiyuki Fukamatsu, Yasuaki Yamagishi, Yoshimoto Muratsubaki | 1993-05-25 |
| 5170488 | Method of switching speech path in radiotelephone system | — | 1992-12-08 |
| 4998252 | Method and apparatus for transmitting digital data | Tadao Suzuki, Yoichiro Sako, Shunsuke Furukawa, Constant P. M. J. Baggen | 1991-03-05 |
| 4977550 | Disc playback apparatus for playback of music and digital data | Shunsuke Furukawa, Katsuya Hori | 1990-12-11 |
| RE33462 | Method and apparatus for transmitting digital data | Tadao Suzuki, Yoichiro Sako, Shunsuke Furukawa, Constant P. M. J. Baggen | 1990-11-27 |
| RE33332 | Apparatus for correcting errors | Katsuya Hori | 1990-09-11 |
| 4800515 | Circuit for operating finite fields | Katsuya Hori | 1989-01-24 |
| 4682312 | Disc player with search noise suppression | Yoshizumi Inazawa | 1987-07-21 |
| 4680764 | Method and apparatus for transmitting digital data | Tadao Suzuki, Yoichiro Sako, Shunske Furukawa, Constant P. M. J. Baggen | 1987-07-14 |
| 4644544 | Apparatus for correcting errors | Katsuya Hori | 1987-02-17 |
| 4613965 | Digital audio disc system | Katsuya Hori | 1986-09-23 |
| 4592036 | Disc player with search noise suppression | Yoshizumi Inazawa | 1986-05-27 |
| 4587643 | Disc playback apparatus | Marinus J. B. M. Monen, Shunsuke Furukawa | 1986-05-06 |
| 4541093 | Method and apparatus for error correction | Katsuya Hori | 1985-09-10 |
| 4532629 | Apparatus for error correction | Tadashi Fukami | 1985-07-30 |
| 4519058 | Optical disc player | Katsuaki Tsurushima, Tadashi Fukami | 1985-05-21 |