Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5930274 | Information recording and reproduction apparatus to be controlled by temporal information | Kouji Kaniwa, Hideo Nishijima, Hiroo Okamoto, Takaharu Noguchi, Hiroaki Ono +4 more | 1999-07-27 |
| 5912969 | Information receiving and recording/reproducing apparatus/method having function for limiting/delimiting for protecting copyright of recording information | Manabu Sasamoto, Takao Arai, Takaharu Noguchi, Hitoaki Owashi, Hideo Nishijima +2 more | 1999-06-15 |
| 5903704 | Apparatus for selectively recording and reproducing received analog and digital signals | Hitoaki Owashi, Takaharu Noguchi, Hiroo Okamoto, Kyoichi Hosokawa, Kazuhiko YOSHIZAWA +3 more | 1999-05-11 |
| 5878188 | Apparatus for recording and reproducing temporally compressed digital information signal | Takao Arai, Takaharu Noguchi, Hiroo Okamoto, Shigeru Yamazaki | 1999-03-02 |
| 5875279 | Subscriber terminal of an interactive communication system and control device thereof | Hitoaki Owashi, Hideo Nishijima, Hiroaki Ono, Takaharu Noguchi, Hiroo Okamoto +2 more | 1999-02-23 |
| 5825969 | Information management apparatus for inhibiting reproduction in a video cassette recorder | Hiroaki Ono, Kiyoshi Kano, Hideo Nishijima, Takao Arai, Takaharu Noguchi +5 more | 1998-10-20 |
| 5777966 | Recording and reproducing system and equalizing method for use in it | Toshifumi Takeuchi, Takao Arai | 1998-07-07 |
| 5751506 | Digital information reproducing apparatus using partial response detection method including quadruple processing | — | 1998-05-12 |
| 5719943 | Digital information signal transmitting/receiving method and system | Shigeru Yamazaki, Takaharu Noguchi, Hideo Nishijima, Hiroaki Ono, Hiroo Okamoto +4 more | 1998-02-17 |
| 5706385 | Rotary head type magnetic recording and reproducing apparatus | Hideaki Suzuki, Susumu Yoshida, Toshifumi Takeuchi, Takao Arai | 1998-01-06 |
| 5699370 | Information recording and reproduction apparatus to be controlled by temporal information | Kouji Kaniwa, Hideo Nishijima, Hiroo Okamoto, Takaharu Noguchi, Hiroaki Ono +4 more | 1997-12-16 |
| 5650989 | Reproducing system and equalizing method for use in it | Toshifumi Takeuchi, Takao Arai | 1997-07-22 |
| 5602816 | Recording and reproducing system and equalizing method for use in it | Toshifumi Takeuchi, Takao Arai | 1997-02-11 |
| 5465180 | Method of and apparatus for recording and/or reproducing a current digital video signal and a high-definition digital video signal in a common track format | Takaharu Noguchi | 1995-11-07 |
| 5414567 | Magnetic recording and reproducing device | Toshifumi Takeuchi, Akira Abeta, Takao Arai, Kouei Usuda | 1995-05-09 |
| 5341248 | Magnetic recording/reproducing apparatus having head structure for selectively recording/reproducing either of two kinds of signals containing different amounts of information | Harushige Nakagaki, Takao Arai, Takaharu Noguchi | 1994-08-23 |
| 5260671 | Receiving circuit for demodulating an angle modulated signal | Yoshimi Iso, Masaki Noda | 1993-11-09 |
| 5189564 | Magnetic recording/reproducing method and apparatus | Takaharu Noguchi, Hiroyuki Kimura, Masaharu Kobayashi, Takao Arai, Yasufumi Yumde +1 more | 1993-02-23 |
| 4937686 | Method and apparatus for PCM recording and reproducing an audio signal having an asynchronous relation between the sampling frequency for the audio signal and the rotation frequency of a rotary head scanner | Takao Arai, Masaharu Kobayashi, Yasufumi Yumde, Hiroaki Takahashi | 1990-06-26 |
| 4758903 | Apparatus for recording and reproducing video signal and digital signal other than video signal | Takaharu Noguchi, Hiroyuki Kimura, Masaharu Kobayashi, Yasufumi Yunde, Takao Arai +1 more | 1988-07-19 |
| 4642573 | Phase locked loop circuit for demodulating suppressed carrier signals | Tsutomu Noda, Keiro Shinkawa | 1987-02-10 |
| 4541091 | Code error detection and correction method and apparatus | Masami Nishida, Keizo Nishimura, Takao Arai | 1985-09-10 |
| 4427951 | Protective device for power amplifier | Harushige Nakagaki, Shigeki Inoue | 1984-01-24 |
| 4409559 | Supply voltage controlled stereophonic amplifier system | Harushige Nakagaki, Shigeki Inoue | 1983-10-11 |
| 4345215 | Audio frequency power amplifier circuit | Shigeki Inoue | 1982-08-17 |