Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5223949 | Coding means for a signal processing system | — | 1993-06-29 |
| 5218448 | Signal reproducing apparatus | Hiroshi Taniguchi, Kunihiko Hontani | 1993-06-08 |
| 5191433 | Controlling the phase of a frequency-modulated wave so as to be in a predetermined phase relationship with a video signal | — | 1993-03-02 |
| 4994928 | Frequency demodulation circuit | Masaaki Kobayashi | 1991-02-19 |
| 4963991 | Video tape recorder capable of recording both narrow band and wideband signals | — | 1990-10-16 |
| 4959620 | Frequency demodulation circuit | — | 1990-09-25 |
| 4931858 | Waveform improving apparatus | — | 1990-06-05 |
| 4908581 | Frequency demodulator having circuit cancelling undesired signal components | — | 1990-03-13 |
| 4821087 | Encoder circuit eliminating carrier leak | — | 1989-04-11 |
| 4812783 | Phase locked loop circuit with quickly recoverable stability | Akihiro Takeuchi, Atsuo Ochi, Shinichi Aki, Yukio Nakagawa, Masaaki Kobayashi | 1989-03-14 |
| 4760449 | Video signal processing apparatus | Tokikazu Matsumoto, Yukio Nakagawa | 1988-07-26 |
| 4734758 | Signal processing circuit | — | 1988-03-29 |
| 4703343 | Noise reduction feedback type comb filter | — | 1987-10-27 |
| 4695900 | Magnetic recording and playback apparatus for teletext signals | Akio Hashima | 1987-09-22 |
| 4691247 | Video signal recording/reproducing apparatus | Akio Hashima | 1987-09-01 |
| 4623940 | Magnetic reproducing apparatus | Tokikazu Matsumoto, Masaaki Kobayashi | 1986-11-18 |
| 4590523 | Control of auto-tracking in tracking-error correcting system of video recording/reproducing apparatus | Masao Tomita, Masaaki Kobayashi | 1986-05-20 |
| 4542416 | System for eliminating vertical TV picture fluctuations appearing in monitored video signals from a VTR | Masao Tomita | 1985-09-17 |
| 4489352 | Video tape recording/reproducing apparatus having an auto tracking function | Masaaki Kobayashi, Masao Tomita, Masayuki Matsumoto, Kazuhiro Yamanishi | 1984-12-18 |
| 4456932 | Horizontal skew elimination system for a VTR | Masao Tomita | 1984-06-26 |
| 4451860 | Tracking-error correcting system in a video reproducing apparatus | Masao Tomita | 1984-05-29 |