Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5381238 | Helical scan type playback apparatus for video data recorded on magnetic tape | Masaru Tanaka, Yoshio Tokuyama | 1995-01-10 |
| 5223941 | Helical scan type playback apparatus for video data recorded on magnetic tape | Masaru Tanaka, Yoshio Tokuyama | 1993-06-29 |
| 5053890 | Magnetic recording and reproducing apparatus | — | 1991-10-01 |
| 5050012 | High-speed erasing apparatus for use in magnetic recording/reproducing system | Hiroshi Nishiumi | 1991-09-17 |
| 4827360 | Rotary transformer with winding to cancel crosstalk | Satoshi Kawasaki, Mitsuhiro Arai | 1989-05-02 |
| 4704642 | Noise reduction circuit for reducing pulse noise in audio signal reproduced from a recording medium | — | 1987-11-03 |
| 4700242 | Magnetic head switching circuit for magnetic recording and reproducing apparatus | — | 1987-10-13 |
| 4698693 | Audio magnetic recording and/or reproducing apparatus utilizing frequency modulation | Yukinobu Ishigaki, Hisashige Fujiwara, Kazutoshi Hirohashi | 1987-10-06 |
| 4673991 | Video signal recording and/or reproducing apparatus having a function of carrying out assembled recordings | Satoshi Kawasaki | 1987-06-16 |
| 4672469 | Delay time adjusting system for video signal reproducing apparatus having heads scanning across multiple tracks | Koji Arai | 1987-06-09 |
| 4577161 | Noise reduction by linear interpolation using a dual function amplifier circuit | Kazutoshi Hirohashi, Yukinobu Ishigaki | 1986-03-18 |
| 4571643 | VTR Circuit arrangement for recording index signal | — | 1986-02-18 |
| 4555669 | Noise reduction by linear interpolation using a single sample-and-hold circuit | — | 1985-11-26 |
| 4549231 | Signal reproducing apparatus having means for modifying a pre-recorded control signal | — | 1985-10-22 |
| 4542422 | Electromagnetic transducer head assembly | — | 1985-09-17 |
| 4539604 | Tracking system in a rotary magnetic head type recording and/or reproducing apparatus | — | 1985-09-03 |
| 4520405 | Insert recording system for a video signal | Akihiko Sasaki, Kouji Arai, Takano Takashi | 1985-05-28 |
| 4365277 | Device for detecting the position of a tape in a magnetic tape recording and/or reproducing apparatus | — | 1982-12-21 |