Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649048 | Video taperecorder with television standards converter | Takuya Otsuki, Sakon Nagasaki | 1997-07-15 |
| 5634048 | Distributed database system having a center system with a link file and a method for retrieving data from same | Tadamitsu Ryu, Toshio Takahara, Shingo Hirono, Tohru Matsumoto, Gen Kakehi +3 more | 1997-05-27 |
| 5548751 | Dynamic data storage system allowing variable size records and fields by using linked record segments | Tadamitsu Ryu, Yoshio Mogi, Takanori Fukatsu | 1996-08-20 |
| 5398138 | Video tape for recording and reproducing plural different independent video signals simultaneously | — | 1995-03-14 |
| 4827342 | Video signal processing apparatus for removing noise from reproduced signals | Haruo Ohta | 1989-05-02 |
| 4821139 | Method of grounding electrical current surges | — | 1989-04-11 |
| 4754340 | Method of reproducing a chrominance signal from a previously low-range-converted chrominance signal using comb filtering and sampling | Yukio Nakagawa, Tokikazu Matsumoto | 1988-06-28 |
| 4733319 | High-speed current limiting circuit breaker | Shigehiro Yoshida, Kazuhiro Yokouchi, Yuichi Wada, Kiyoshi Fukuda | 1988-03-22 |
| 4724476 | Chrominance signal processing apparatus | Yukio Nakagawa, Tokikazu Matsumoto | 1988-02-09 |
| 4698694 | Video signal processing apparatus for video tape recorders | Akio Hashima | 1987-10-06 |
| 4686583 | Dropout compensating apparatus using a digital delay circuit | Akio Hashima, Haruo Ohta, Tadaaki Matsuo | 1987-08-11 |
| 4679097 | Method of recording and reproducing video and audio signals on a magnetic tape | — | 1987-07-07 |
| 4677487 | Digital noise reducing apparatus for a video signal processing recording reproducing apparatus | Akio Hashima | 1987-06-30 |
| 4640794 | Impulse rocket propellant | — | 1987-02-03 |
| 4630251 | Video disc reproducing apparatus | Akihiro Takeuchi, Akio Hashima | 1986-12-16 |
| 4605974 | Magnetic recording and reproducing apparatus | Atsuo Ochi, Akio Hashima | 1986-08-12 |
| 4590523 | Control of auto-tracking in tracking-error correcting system of video recording/reproducing apparatus | Masahiro Honjo, Masaaki Kobayashi | 1986-05-20 |
| 4566401 | Dynamic current interruption-type indicators and method therefor | — | 1986-01-28 |
| 4549226 | Eliminating the low-frequency chrominance signal for tracking in a video tape recorder | — | 1985-10-22 |
| 4542416 | System for eliminating vertical TV picture fluctuations appearing in monitored video signals from a VTR | Masahiro Honjo | 1985-09-17 |
| 4489352 | Video tape recording/reproducing apparatus having an auto tracking function | Masaaki Kobayashi, Masayuki Matsumoto, Masahiro Honjo, Kazuhiro Yamanishi | 1984-12-18 |
| 4456932 | Horizontal skew elimination system for a VTR | Masahiro Honjo | 1984-06-26 |
| 4451860 | Tracking-error correcting system in a video reproducing apparatus | Masahiro Honjo | 1984-05-29 |
| 4344087 | Method of processing video signals for time base correction | Takenobu Isaka, Kiyoji Fujisawa, Mineo Mino | 1982-08-10 |
| 4327384 | Rotary head type magnetic tape recording reproducing apparatus | Takenobu Isaka, Mineo Mino, Kiyoji Fujisawa | 1982-04-27 |