Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6078944 | Process management method and system | Yutaka Enko, Toshiaki Arai, Reki Yamamoto, Naofumi Shouji, Tomoki Sekiguchi +2 more | 2000-06-20 |
| 5760820 | Digital signal transmission system with priority information forcing display of text on a receiver | Takanori Eda, Isao Nakagawa, Keiro Shinkawa, Toshio Nagashima, Kenji Katsumata +1 more | 1998-06-02 |
| 5285279 | Ghost canceller using fuzzy control | Toshiyuki Sakamoto, Keiro Shinkawa | 1994-02-08 |
| 5210607 | Ghost reduction device for removing ghost components of a television signal | Toshiyuki Sakamoto, Keiro Shinkawa | 1993-05-11 |
| 5138451 | Television receiver | Keiro Shinkawa, Toshinori Murata, Nobutaka Hotta, Kazuhiro Ooyagi | 1992-08-11 |
| 4882725 | Multiplex transmission method and apparatus | Takatoshi Shirosugi, Nobutaka Hotta, Akihide Okuda | 1989-11-21 |
| 4642573 | Phase locked loop circuit for demodulating suppressed carrier signals | Keiro Shinkawa, Nobutaka Amada | 1987-02-10 |
| 4583074 | Expansion circuit for digital signals | Hiroo Okamoto, Takao Arai | 1986-04-15 |
| 4571572 | Digital/analogue converter | Yoshimi Iso, Tetsuo Sato | 1986-02-18 |
| 4570153 | Signal conversion apparatus for use in PCM signal processing system | Masaharu Kobayashi, Takao Arai | 1986-02-11 |
| 4562549 | Digital player using a pulse width detector | Hiromichi Tanaka, Hiroyuki Kimura, Takao Arai, Masaharu Kobayashi, Shigeki Inoue | 1985-12-31 |
| 4539665 | Tracking servo control unit for an information reproducing apparatus | Yoshimi Iso, Shigeki Inoue, Shinichi Ohashi | 1985-09-03 |
| 4349696 | AM Stereophonic demodulator circuit for amplitude/angle modulation system | Isao Akitake, Kazuhiko Yamazaki | 1982-09-14 |