Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7271970 | Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element | — | 2007-09-18 |
| 6879460 | Magnetic recording disk drive | Futoshi Tomiyama, Takehiko Hamaguchi, Toru Matsushita, Hideki Zaitsu, Hisashi Takano | 2005-04-12 |
| 6816344 | Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element | — | 2004-11-09 |
| 6765740 | Composite magnetic head, magnetic disk drive using the head, and control method for the magnetic disk | — | 2004-07-20 |
| 6657804 | Magnetic recording disk drive | Futoshi Tomiyama, Takehiko Hamaguchi, Toru Matsushita, Hideki Zaitsu, Hisashi Takano | 2003-12-02 |
| 6512648 | Magnetic storage apparatus using a magnetoresistive element | Mikio Suzuki | 2003-01-28 |
| 6452737 | Magnetic disk device and automatic adaptation method of its parameter | Tetsuya Makiura | 2002-09-17 |
| 6285520 | Magnetic disk device and automatic adaptation method of its parameter | Tetsuya Makiura | 2001-09-04 |
| 6130797 | Magnetic recorder and magnetooptical recorder | Kyo Akagi, Yoshihiro Shiroishi, Takehiko Hamaguchi, Masuo Umemoto, Mikio Suzuki +6 more | 2000-10-10 |
| 6111715 | Storage apparatus using a magnetoresistive head that employs a sense current selected from plural predetermined sense currents | Mikio Suzuki | 2000-08-29 |
| 5786952 | Magnetic digital storage method and system wherein magnetic transition points in adjacent recorded tracks are out of phase with each other | Masuo Umemoto, Yoshihiro Shiroishi, Kyo Akagi, Takehiko Hamaguchi, Takashi Kawabe +2 more | 1998-07-28 |
| 5459620 | Diagnostic system of magnetic recording channel and magnetic disk drive apparatus | — | 1995-10-17 |
| 5008761 | Readout circuit in magnetic recording device | Nobumasa Nishiyama, Makoto Saito, Yasuhide Ouchi, Yasuhiro Katoh, Yoshihisa Kamo +3 more | 1991-04-16 |
| 4907100 | Readout circuit in magnetic recording device | Nobumasa Nishiyama, Makoto Saito, Yasuhide Ouchi, Yasuhiro Katoh, Yoshihasa Kamo +3 more | 1990-03-06 |
| 4823208 | Multi slice level signal circuit | Yasuhide Ouchi, Hajime Aoi, Nobumasa Nishiyama, Takashi Tamura, Makoto Saitoh | 1989-04-18 |