Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6160675 | Magnetic recording and reproducing apparatus | Katsuyuki Shudo, Hiromichi Hirayama | 2000-12-12 |
| 5982590 | Magnetic recording/reproducing apparatus with tilting head drum for dynamic tracking | Hiromichi Hirayama, Ryo Nishima | 1999-11-09 |
| 5949621 | Magnetic recording/reproducing apparatus having double tilting member for dynamic tracking | Hiromichi Hirayama | 1999-09-07 |
| 5894383 | Magnetic recording/reproducing apparatus with a positioning mechanism for a tape guide drum | Hiromichi Hirayama | 1999-04-13 |
| 5742456 | Magnetic recording/reproducing apparatus with a positioning mechanism for a tape guide drum | Hiromichi Hirayama, Ryo Nishima, Morio Miwa, Masao Mimata, Makoto Suzuki | 1998-04-21 |
| 5726836 | Magnetic recording/reproducing apparatus having double tilting arrangement for dynamic tracking | Hiromichi Hirayama | 1998-03-10 |
| 5675458 | Magnetic recording/reproducing apparatus with independently tiltable head drum and tape lead guide | Hiromichi Hirayama | 1997-10-07 |
| 5504642 | Magnetic recording/reproducing apparatus having a locus plane of rotary heads tiltable with respect to a lower drum | Hiromichi Hirayama | 1996-04-02 |
| 5448540 | Device for detecting the position of a recording/reproducing element | Katsuyuki Shudo, Yoshio Mizuno, Ryo Nishima, Shigeru Kawase | 1995-09-05 |
| 5343348 | Actuator for displacing a magnetic head | Ryo Nishima, Yoshio Mizuno, Katsuyuki Shudo, Shigeru Kawase | 1994-08-30 |
| 4868678 | Apparatus for recording a video signal of consecutive fields on a pair of separated tracks | Shigeru Kawase, Yoshio Mizuno, Katsuyuki Shudo | 1989-09-19 |
| 4792861 | Video signal recording apparatus with track centering using crosstalk detection and third odd multiple field recording | Shigeru Kawase, Yoshio Mizuno, Katsuyuki Shudo | 1988-12-20 |
| 4774610 | Transducer element assembly comprising a cantilever detachably coupled to a support | — | 1988-09-27 |
| 4761694 | Apparatus for recording/reproducing a composite video signal with a rotary recording medium and circuit arrangement therefor | Katsuyuki Shudo, Keigo Okano, Yoshiaki Hanashiro | 1988-08-02 |
| 4694365 | Recording medium for recording and/or reproducing apparatus | — | 1987-09-15 |
| 4675765 | Magnetic recording and/or reproducing element | Keiji Segawa, Hirofumi Imaoka, Toshiya Sakurai | 1987-06-23 |
| 4661875 | Information storage disc assembly | — | 1987-04-28 |
| 4633357 | Tubular recording medium having a flexible magnetic recording surface | — | 1986-12-30 |
| 4604667 | Recording medium for recording and/or reproducing apparatus | — | 1986-08-05 |
| 4567535 | Recording and/or reproducing apparatus | — | 1986-01-28 |
| 4530012 | Tracking control system for magnetic video recording and/or reproducing apparatus with tracking signal positions staggered with respect to the positions of tracking signals on adjacent tracks | — | 1985-07-16 |
| 4497052 | Stylus for reproducing information signals recorded on a recording medium | Yoshiyo Wada, Kunio Goto | 1985-01-29 |
| 4491941 | Reproducing stylus for an information signal recording medium | Keiji Ozawa | 1985-01-01 |
| 4488183 | Copy-proof recording medium and device for adding copy-proof interference signal | — | 1984-12-11 |
| 4486791 | Apparatus for optically reproducing signals recorded on a rotating recording medium | Yoshiyo Wada, Ichiro Ueno, Yoshihiko Honjo, Kazuo Tatsuguchi, Juichi Shikunami | 1984-12-04 |