Issued Patents All Time
Showing 1–25 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7486485 | Perpendicular hard disk drive resistive against external magnetic field | Takehiko Hamaguchi, Hideaki Maeda, Yukiya Shimizu, Ikuya Tagawa, Tetsuo Yuki | 2009-02-03 |
| 7434095 | Data reconstruction method and system wherein timing of data of data reconstruction is controlled in accordance with conditions when a failure occurs | Atsushi Tanaka, Hitoshi Kakuta | 2008-10-07 |
| 7320089 | Storage unit subsystem | Akira Yamamoto, Hiroyuki Kitajima, Kouji Arai | 2008-01-15 |
| 7242656 | Disk system and power-on sequence for the same | Hitoshi Kakuta, Atsushi Tanaka, Yosuke Seo | 2007-07-10 |
| 6966011 | Data reconstruction method and system wherein timing of data of data reconstruction is controlled in accordance with conditions when a failure occurs | Atsushi Tanaka, Hitoshi Kakuta | 2005-11-15 |
| 6874101 | Storage unit subsystem | Akira Yamamoto, Hiroyuki Kitajima, Kouji Arai | 2005-03-29 |
| 6757839 | Storage unit subsystem | Akira Yamamoto, Hiroyuki Kitajima, Kouji Arai | 2004-06-29 |
| 6625690 | Disk system and power-on sequence for the same | Hitoshi Kakuta, Atsushi Tanaka, Yosuke Seo | 2003-09-23 |
| 6625748 | Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs | Atsushi Tanaka, Hitoshi Kakuta | 2003-09-23 |
| 6611897 | Method and apparatus for implementing redundancy on data stored in a disk array subsystem based on use frequency or importance of the data | Tsunetaka Komachiya, Akira Yamamoto | 2003-08-26 |
| 6571314 | Method for changing raid-level in disk array subsystem | Tsunetaka Komachiya, Akira Yamamoto | 2003-05-27 |
| 6532549 | Storage unit subsystem | Akira Yamamoto, Hiroyuki Kitajima, Kouji Arai | 2003-03-11 |
| 6397294 | Disk system and power-on sequence for the same | Hitoshi Kakuta, Atsushi Tanaka, Tosuke Seo | 2002-05-28 |
| 6327673 | Storage unit subsystem | Akira Yamamoto, Hiroyuki Kitajima, Kouji Arai | 2001-12-04 |
| 6286108 | Disk system and power-on sequence for the same | Hitoshi Kakuta, Atsushi Tanaka, Yosuke Seo | 2001-09-04 |
| 6243824 | Array disk subsystem | Hitoshi Kakuta, Hajime Aoi | 2001-06-05 |
| 6161194 | Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs | Atsushi Tanaka, Hitoshi Kakuta | 2000-12-12 |
| 6145091 | Storage unit subsystem | Akira Yamamoto, Hiroyuki Kitajima, Kouji Arai | 2000-11-07 |
| 6131142 | Disk system and power-on sequence for the same | Hitoshi Kakuta, Atsushi Tanaka, Yosuke Seo | 2000-10-10 |
| 6012124 | Disk system with activation control of disk drive motors | Hitoshi Kakuta, Atsushi Tanaka, Yosuke Seo | 2000-01-04 |
| 6000039 | Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs | Atsushi Tanaka, Hitoshi Kakuta | 1999-12-07 |
| 5941993 | Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs | Atsushi Tanaka, Hitoshi Kakuta | 1999-08-24 |
| 5917999 | Storage unit subsystem | Akira Yamamoto, Hiroyuki Kitajima, Kouji Arai | 1999-06-29 |
| 5889938 | Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs | Atsushi Tanaka, Hitoshi Kakuta | 1999-03-30 |
| 5745771 | Disc array device and disc control method | Mitsuo Ohyama, Akihiko Ohba, Hitoshi Kakuta, Toyohiko Kagimasa, Hiroki Kanai | 1998-04-28 |