Issued Patents All Time
Showing 51–68 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6222978 | Video signal copy guard apparatus and method | — | 2001-04-24 |
| 6115341 | Digital signal recording method and apparatus and digital signal reproduction method and apparatus | — | 2000-09-05 |
| 5915676 | Lever-type frictional resistance force variable system | Hisanori Abiru, Hideaki Harada, Kenji Imada, Souhei Tateyama | 1999-06-29 |
| 5914754 | Video signal aspect ratio conversion apparatus | Teruhiko Kori, Tadashi Ezaki | 1999-06-22 |
| 5815530 | Data converters for sound equipment | — | 1998-09-29 |
| 5541999 | Audio apparatus having a karaoke function | — | 1996-07-30 |
| 5444785 | Echo attaching circuit and audio device using the same | Kaoru Izawa, Shigeyoshi Hayashi | 1995-08-22 |
| 5394474 | Echo attaching circuit and audio device using the same | Kaoru Izawa | 1995-02-28 |
| 5332916 | Transmission gate | — | 1994-07-26 |
| 5300892 | Audio signal amplifier circuit | — | 1994-04-05 |
| 5272847 | Long period pendulum damping equipment | Hisanori Abiru, Hideaki Harada, Kazumi Tamura, Manabu Fujishiro, Yasuo Ogi | 1993-12-28 |
| 5223945 | Recording mode discrimination circuit | Takashi Honda | 1993-06-29 |
| 5223944 | Method and apparatus for transmitting video signals during first and second portions thereof | Satoshi Shimada | 1993-06-29 |
| 5168967 | Dynamic damper and method for detecting malfunction of dynamic damper | Hisanori Abiru, Hideaki Harada, Kazumi Tamura, Manabu Fujishiro | 1992-12-08 |
| 5040082 | Recording apparatus | Shuuji Moro, Masahiro Kiko | 1991-08-13 |
| 4513311 | Video signal processing unit | Masayasu Kaneko | 1985-04-23 |
| 4291330 | Video signal processing circuit for eliminating an interfering signal | — | 1981-09-22 |
| 4290082 | Noise and cross-talk elimination in recording and reproducing video signals | — | 1981-09-15 |