Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12283169 | Monitoring system, monitoring method, and recording medium | Yasushi Watanabe, Yukio NADA, Sayuri Watanabe | 2025-04-22 |
| 8468300 | Storage system having plural controllers and an expansion housing with drive units | Azuma Kano, Ikuya Yagisawa | 2013-06-18 |
| 8320154 | Switching element and application of the same | Tsuyoshi Hasegawa, Masakazu Aono, Fumiko Yano, Kazuya Terabe, Toru Tsuruoka +3 more | 2012-11-27 |
| 8291162 | Storage system | Manabu Kitamura, Junji Ogawa, Shunji Kawamura, Takao Sato, Naoto Matsunami +2 more | 2012-10-16 |
| 8037245 | Storage system | Manabu Kitamura, Junji Ogawa, Shunji Kawamura, Takao Sato, Naoto Matsunami +2 more | 2011-10-11 |
| 7865665 | Storage system for checking data coincidence between a cache memory and a disk drive | Azuma Kano, Ikuya Yagisawa | 2011-01-04 |
| 7453774 | Disk array system | Azuma Kano, Ikuya Yagisawa | 2008-11-18 |
| 7447121 | Disk array system | Azuma Kano, Ikuya Yagisawa | 2008-11-04 |
| 7203135 | Disk array system and method for controlling disk array system | Azuma Kano, Ikuya Yagisawa | 2007-04-10 |
| 7200074 | Disk array system and method for controlling disk array system | Azuma Kano, Ikuya Yagisawa | 2007-04-03 |
| 7181570 | Diskarray system for suppressing disk fault | Ikuya Yagisawa, Kenichi Takamoto, Yoshinori Tsuneda, Azuma Kano | 2007-02-20 |
| 7057981 | Disk array system and method for controlling disk array system | Azuma Kano, Ikuya Yagisawa | 2006-06-06 |
| 6490123 | Disc drive having 3.5 inch form factor housing and 2.5 inch form factor disk media | Nobuyuki Okunaga, Masao Iwakura, Kazuo Nakagoshi, Chuma Akira, Fumio Kugiya +5 more | 2002-12-03 |
| 6069762 | Magnetic recording drive having arrangement for averaging useful life of magnetoresistive effect sensors | Hajime Aoi, Toshiaki Tsuyoshi, Makoto Koizumi, Nobumasa Nishiyama, Yoshibumi Matsuda +1 more | 2000-05-30 |
| 6014275 | Magnetic recording drive | Hajime Aoi, Toshiaki Tsuyoshi, Makoto Koizumi, Nobumasa Nishiyama, Yoshibumi Matsuda +1 more | 2000-01-11 |
| 5572379 | Magnetic recording drive having arrangements for average useful life of magnetorestive effects sensors | Hajime Aoi, Toshiaki Tsuyoshi, Makoto Koizumi, Nobumasa Nishiyama, Yoshibumi Matsuda +1 more | 1996-11-05 |
| 5241435 | Servo information recording method for a storage apparatus | Shigeyoshi Saito, Yuji Hata, Jyousei Shimizu, Tsuyoshi Takahashi, Masahiko Sega +1 more | 1993-08-31 |
| 5173819 | Disk apparatus having an improved cooling structure | Tsuyoshi Takahashi, Kazuo Nakagoshi, Jun Naruse, Takeo Hayakawa | 1992-12-22 |
| 5148334 | Phase synchronization circuit | Takikazu Takeuchi, Hiroyuki Yokohara, Noboru Sakurai | 1992-09-15 |
| 5109311 | Magnetic disk device and method of recording/retrieving information | Masanobu Hanazono, Shinji Narishige, Yutaka Sugita, Hiroshi Fukui, Hirotsugu Fukuoka +4 more | 1992-04-28 |
| 4881136 | Method and apparatus for detecting minute defects on magnetic disk by monitoring both amplitude decrease and phase shift of a reproduced signal | Kazuhisa Shiraishi, Kazuo Nakagoshi | 1989-11-14 |