Issued Patents All Time
Showing 25 most recent of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7861034 | Load distribution of multiple disks | Akira Yamamoto, Takao Satoh, Yoshihiro Asaka, Yoshiaki Kuwahara, Hiroyuki Kitajima | 2010-12-28 |
| 7478231 | Storage control apparatus | Takeshi Ido, Youichi Gotoh, Shizuo Yokohata, Toshiyuki Yoshino | 2009-01-13 |
| 7254674 | Distribution of I/O requests across multiple disk units | Akira Yamamoto, Takao Satoh, Yoshihiro Asaka, Yoshiaki Kuwahara, Hiroyuki Kitajima | 2007-08-07 |
| 7181607 | Storage control apparatus | Takeshi Ido, Youichi Gotoh, Shizuo Yokohata, Toshiyuki Yoshino | 2007-02-20 |
| 7133966 | Disk array device having spare disk drive and data sparing method | Hajime Sato | 2006-11-07 |
| 6950871 | Computer system having a storage area network and method of handling data in the computer system | Hiroshi Morishima, Tokuhiro Tsukiyama, Hiroyuki Matsushima, Takashi Oeda, Yoji Tomono | 2005-09-27 |
| 6938125 | Storage system with data prefetch function | Akira Yamamoto, Takao Satoh, Yoshihiro Asaka, Yoshiaki Kuwahara, Hiroyuki Kitajima | 2005-08-30 |
| 6904469 | Storage control apparatus | Takeshi Ido, Youichi Gotoh, Shizuo Yokohata, Toshiyuki Yoshino | 2005-06-07 |
| 6728832 | Distribution of I/O requests across multiple disk units | Akira Yamamoto, Takao Satoh, Yoshihiro Asaka, Yoshiaki Kuwahara, Hiroyuki Kitajima | 2004-04-27 |
| 6631443 | Disk storage system having capability for performing parallel read operation | Akira Yamamoto, Takao Satoh, Yoshihiro Asaka, Yoshiaki Kuwahara, Hiroyuki Kitajima | 2003-10-07 |
| 6499056 | First host computer through a first interface sending to a second host computer a message including information about transfer data written to a storage subsystem through a second interface | Manabu Kitamura, Akira Yamamoto, Kiichiro Urabe, Ikuo Uratani | 2002-12-24 |
| 6438646 | Storage subsystem having a plurality of interfaces conforming to a plurality of data formats | Manabu Kitamura, Akira Yamamoto | 2002-08-20 |
| 6424970 | Sorting system and method executed by plural computers for sorting and distributing data to selected output nodes | Hiroshi Arakawa, Akira Yamamoto, Hideo Ohata | 2002-07-23 |
| 6148367 | Controller limiting modification of cache based upon amount of dirty lines in the cache | Toshiaki Tsuboi, Akira Yamamoto, Yoshihiro Asaka, Koji Ozawa, Hiroyuki Kitajima +1 more | 2000-11-14 |
| 6108750 | Simultaneous read/write control of data storage disk units | Akira Yamamoto, Takao Satoh, Yoshihiro Asaka, Yoshiaki Kuwahara, Hiroyuki Kitajima | 2000-08-22 |
| 6054677 | Heating device and heating rotary member | Yuusuke Morigami, Yoshifumi Kosagi, Toshio Sakata, Eiji Okabayashi, Taizou Oonishi | 2000-04-25 |
| 5991562 | Fixing device, and releasing agent replenishing device and method for use in the fixing device | Tetsuro Ito, Mitsuru Isogai | 1999-11-23 |
| 5835938 | Read/write control for grouped disk storage including parallel access | Akira Yamamoto, Takao Satoh, Yoshihiro Asaka, Yoshiaki Kuwahara, Hiroyuki Kitajima | 1998-11-10 |
| 5680574 | Data distribution utilizing a master disk unit for fetching and for writing to remaining disk units | Akira Yamamoto, Takao Satoh, Yoshihiro Asaka, Yoshiaki Kuwahara, Hiroyuki Kitajima | 1997-10-21 |
| 5623631 | Limiting modification of cache entries in a write-back cache based upon the amount of dirty lines in the cache | Toshiaki Tsuboi, Akira Yamamoto, Yoshihiro Asaka, Koji Ozawa, Hiroyuki Kitajima +1 more | 1997-04-22 |
| 5555389 | Storage controller for performing dump processing | Takao Satoh, Akira Yamamoto | 1996-09-10 |
| 5418929 | Controller for storage unit and method of controlling storage unit | Toshiaki Tsuboi, Akira Yamamoto, Yoshihiro Asaka, Koji Ozawa, Hiroyuki Kitajima +1 more | 1995-05-23 |
| 5404487 | Disc access control method for cache-embedded disc control apparatus with function-degradation capability of data transmission path | Tomohiro Murata, Masaharu Akatsu, Kenzo Kurihara, Yoshiaki Kuwahara | 1995-04-04 |
| 5307473 | Controller for storage unit and method of controlling storage unit | Toshiaki Tsuboi, Akira Yamamoto, Yoshihiro Asaka, Koji Ozawa, Hiroyuki Kitajima +1 more | 1994-04-26 |
| 5257352 | Input/output control method and system | Akira Yamamoto, Toshiaki Tsuboi, Takao Sato, Yoshihiro Asaka, Shigeru Kishiro +3 more | 1993-10-26 |