Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11183210 | Magnetic disk device | — | 2021-11-23 |
| 10762920 | Magnetic disk device | Nobuyuki Sakamoto | 2020-09-01 |
| 9959891 | Method for correcting a mounting position of a disk device on a rack | Toru Ikeda | 2018-05-01 |
| 7719788 | Servo information correcting method | — | 2010-05-18 |
| 7561371 | Magnetic disk device, servo-information writing device, magnetic disk, and magnetic disk device manufacturing method | Kazunori Mori | 2009-07-14 |
| 7522364 | Control circuit for information storage device | Ryuki Kubohara | 2009-04-21 |
| 7492543 | Control device, control method, and storage apparatus for controlling read head and write head clearance | Nobuyuki Mitsunaga, Masahide Kanegae, Hiroyuki Tanaka, Masao Kondo | 2009-02-17 |
| 7420765 | Seek control apparatus, seek control method and storage apparatus | Tomoaki Saito | 2008-09-02 |
| 7289287 | Apparatus for recording or/and reproducing information and method for reducing power consumption thereof | Kouhei Takamatsu, Tomoaki Saito, Kenji Itou, Hiroshi Tsurumi | 2007-10-30 |
| 7196865 | Recording apparatus having discoid record mediums | Kazunori Mori, Tatsuhiko Kosugi, Yoshiyuki Kagami | 2007-03-27 |
| 7136245 | Disk device | Kazunori Mori, Takeyori Hara, Yoshiyuki Kagami, Kouhei Takamatsu | 2006-11-14 |
| 7050250 | Storage apparatus and storage medium | Tatsuhiko Kosugi, Kazunori Mori, Yoshiyuki Kagami, Ryuki Kubohara | 2006-05-23 |
| 7002769 | Head control method and recording apparatus | Yoshiyuki Kagami, Shuichi Hashimoto | 2006-02-21 |
| 6690538 | Disk drive device and access sequence therefor | Tomoaki Saito | 2004-02-10 |
| 6295175 | Apparatus for recognizing spin valve head failure due to pin layer magnetic field offset | Takao Koshikawa, Toshinori Hoshino, Tadashi Nakamura, Hitoshi Kanai, Hiroaki Ueno | 2001-09-25 |
| 6219722 | Head IC and recording apparatus | — | 2001-04-17 |
| 6175459 | Magnetic disk drive with a disk medium defect detector and read channel IC used in the drive | — | 2001-01-16 |
| 6130793 | Thermal asperity detection method, thermal asperity compensation method, magnetic disk unit and retry method therefor | Hideki Ohmori, Masahide Kanegae | 2000-10-10 |
| 6064541 | Servo pattern writing method for magnetic disk drives, and magnetic disk drive adopting the method | Tatsuro Sasamoto, Keiji Aruga | 2000-05-16 |
| 5926337 | Off-track correcting method of disk apparatus and a disk apparatus using the same | Kenji Itou, Toshiki Kimura | 1999-07-20 |
| 5907449 | Position sunsitivity adjusting method for disk apparatus and a disk apparatus using the same | Kenji Itou, Nobuyuki Suzuki | 1999-05-25 |
| 5903411 | Method for reliably positioning a head in a disk drive to a guard band area | Tatsuro Sasamoto, Yoshihiro Nakao | 1999-05-11 |
| 5805373 | Head position error compensation in disk drives | Takeyori Hara, Taturo Sasamoto, Nobuyuki Suzuki, Masafumi Sato | 1998-09-08 |
| 5754354 | Magnetic disk drive unit with complex magnetic head of variable reading width | Tsuyoshi Furukawa | 1998-05-19 |
| 5721838 | Data storage system having a data storage apparatus connectable to a computer system through an interface | Tsuyoshi Takahashi | 1998-02-24 |