Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6393194 | Magnetic recording and reproducing video signal in magnetic tape at video quality selectable from prescribed different qualities | Seiichi Mikami | 2002-05-21 |
| 5153741 | Crosstalk cancelling circuit for playback chrominance signal of VTR | Ryo Nakano | 1992-10-06 |
| 5099314 | Luminance signal/color signal separation circuit | Hiroshi Yamada | 1992-03-24 |
| 5091788 | Crosstalk cancelling circuit for removing crosstalk component from reproduced signal | Ryo Nakano | 1992-02-25 |
| 5001553 | Luminance signal/color signal separation circuit | Hiroshi Yamada | 1991-03-19 |
| 4984069 | YC separator for video signal processing circuit | Hiroshi Yamada | 1991-01-08 |
| 4969033 | Circuit for removing crosstalk components in a carrier chrominance signal | Hiroshi Yamada, Ryo Nakano, Seiichi Mikami | 1990-11-06 |
| 4962434 | Reproducing device for video signal | — | 1990-10-09 |
| 4930005 | Circuit for removing crosstalk components in a carrier chrominance signal | Hiroshi Yamada, Ryo Nakano, Seiichi Mikami | 1990-05-29 |
| 4916527 | Luminance signal/color signal separation circuit | — | 1990-04-10 |
| 4901165 | Video signal recording and/or reproducing apparatus | — | 1990-02-13 |
| 4864404 | Noise reduction circuit of a video signal | — | 1989-09-05 |
| 4860105 | Noise Reducing circuit of a video signal | Hironao Sakaguchi, Masaji Yoshida | 1989-08-22 |
| 4771341 | Video signal recording and reproducing apparatus with a comb filter for removing chrominance components | Masayuki Shimizu | 1988-09-13 |
| 4768109 | Video signal recording and/or reproducing apparatus | — | 1988-08-30 |
| 4760468 | Color video signal recording and reproducing apparatus | Ryo Nakano, Takeyoshi Ito | 1988-07-26 |
| 4757391 | Helical scan type magnetic recording and reproducing apparatus recording multiple signals on multiple axially displaced tape tracks | Akira Hirota | 1988-07-12 |
| 4750037 | Noise reduction system for video signal | Koichi Kido | 1988-06-07 |
| 4698696 | Noise reduction circuit for video tape recording and playback apparatus | — | 1987-10-06 |