Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6515836 | Magneto-resistive effect type magnetic head and magnetic tape apparatus | Shinichi Fukuda, Toshio Shirai | 2003-02-04 |
| 6429992 | Non-contact type transmission device and rotary magnetic head unit having the non-contact type transmission device and a bias current control section | Toshio Shirai, Tomohiro Ikegami | 2002-08-06 |
| 6411456 | Magnetic signal reproducing method and apparatus | Toshio Shirai, Yoshiteru Kamatani | 2002-06-25 |
| 6411473 | Rotary drum device and magnetic recording/reproducing apparatus having a more protruding inductive magnetic head relative to magnetoresistive head | Toshio Shirai, Yoshiteru Kamatani | 2002-06-25 |
| 6356403 | Rotary magnetic head apparatus having reproduction signal wiring, power-supply wiring and recording signal wiring sections in a rotor and a stator arranged in a predetermined manner | Toshio Shirai, Tomohiro Ikegami | 2002-03-12 |
| 6304397 | Magnetic recording/reproducing apparatus with rotary drum with magnetoresistance head for transducing DC-free code signals | Toshio Shirai, Takehiko Saito, Yoshiteru Kamatani, Tomohiro Ikegami | 2001-10-16 |
| 6297631 | Magnetic signal reproducing method and apparatus using magneto-resistive effect element with increased sense current | Toshio Shirai, Yoshiteru Kamatani, Tomohiro Ikegami, Takehiko Saito | 2001-10-02 |
| 6243240 | Non-contact type transmission device and rotary magnetic head unit having the non-contact type transmission device | Toshio Shirai, Tomohiro Ikegami | 2001-06-05 |
| 6229662 | Magnetic recording/reproducing apparatus and magnetic tape | Toshio Shirai, Yoshiteru Kamatani, Takehiko Saito, Tomohiro Ikegami | 2001-05-08 |
| 6141166 | Recording head arrangement for a magnetic recording device having a multichannel recording mode | — | 2000-10-31 |
| 6081398 | Recording/reproducing apparatus with read-after-write capability | — | 2000-06-27 |
| 6038200 | Autochanger | Takao Hiramoto | 2000-03-14 |
| 6008961 | Recording method of a helical scan system for recording data to a tape-shaped recording medium | — | 1999-12-28 |
| 5886843 | Recording and playback apparatus using a helical-scan-type rotary head | Joichi Daiba | 1999-03-23 |
| 5867335 | Autochanger | Takao Hiramoto | 1999-02-02 |
| 5852534 | Tape cassette, tape recording apparatus and tape reproducing apparatus | Yoshihisa Takayama | 1998-12-22 |
| 5791578 | Recording medium device with memory terminals and shutter sized and shaped in relation thereto | Toshiya Kurokawa, Joichi Daiba, Satoshi Ota, Mitsunori Sakama, Katsumi Maekawa | 1998-08-11 |
| 5742444 | Recording and/or reproducing apparatus for controlling the running speed of a recording tape | — | 1998-04-21 |
| 5684649 | Recording/reproducing apparatus with read-after-write capability | — | 1997-11-04 |
| 5677803 | Apparatus for recording data signals and a signal having a repetitive frequency to a recording medium and/or for reproducing the data signals therefrom | Yukio Watanabe | 1997-10-14 |
| 5559766 | Rotary drum tape recording apparatus with controlling optical recording tracks using stored results of scanning of reference tracks | Takashi Nakao, Kiyoshi Ohsato, Yoshiteru Kamatani, Tatsuya Narahara | 1996-09-24 |
| 5502603 | Rotating head type recording/reproducing apparatus which uses wide recording heads to record a single pilot signal over three tracks and preventing overwriting of the pilot signal by the next head scan | Takanobu Kohno | 1996-03-26 |
| 5287341 | Rotating optical head apparatus | Yoshiteru Kamatani, Takuya Kaeriyama | 1994-02-15 |
| 5265084 | Rotary drum assembly with pump-out spiral grooves | Yoshiteru Kamatani, Tatsuya Narahara | 1993-11-23 |
| 5157650 | Optical recording apparatus | Masahiko Chaya, Tatsuya Narahara | 1992-10-20 |