Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9177581 | Head position demodulation method and magnetic disk device | — | 2015-11-03 |
| 8964325 | Magnetic disk device and method for read/write offset error correction | — | 2015-02-24 |
| 8908303 | Method for servo demodulation and disk storage apparatus | — | 2014-12-09 |
| 8848303 | Disk storage apparatus and method for servo demodulation | — | 2014-09-30 |
| 7787200 | Disk-device correcting system, information managing device, master-disk producing device, and master-disk producing method | Hiroyuki Suzuki, Masanori Fukushi, Kazuhiko Takaishi, Tsugito Maruyama, Sumio Kuroda | 2010-08-31 |
| 7515377 | Storage apparatus and control method for detecting vibration produced during seeking | Kei Funabashi, Takeyori Hara | 2009-04-07 |
| 7508620 | Disk apparatus, information processing system, and information providing apparatus | Kazuhiko Takaishi, Masanori Fukushi, Tsugito Maruyama, Hiroyuki Suzuki | 2009-03-24 |
| 7385779 | Disk device with bi-directional communication function | Kei Funabashi, Takeyori Hara | 2008-06-10 |
| 7158349 | Ramp member assembly including flying slider in recording disk drive | Masaharu Sakata | 2007-01-02 |
| 7154702 | Head actuator | Hiroshi Takekawa, Shinji Koganezawa | 2006-12-26 |
| 6904010 | Method of writing servo tracks for disk file apparatus using write start or stop sectors | Yasumasa Kuroba | 2005-06-07 |
| 6819519 | Head position control method for a disk device and the disk device | Kazuhiko Takaishi, Yasumasa Kuroba, Mitsuo Kamimura | 2004-11-16 |
| 6671120 | Head carriage assembly drive system and disk drive | Shinji Koganezawa | 2003-12-30 |
| 6538854 | Actuator using piezoelectric element and head-positioning mechanism using the actuator | Shinji Koganezawa, Yukihiro Uematsu, Tadayoshi Noguchi, Hisashi Nakano, Ryuma Sakamoto +2 more | 2003-03-25 |
| 6496322 | Head position control for a disk drive which performs recording about the rotational center even if the recorded servo information is eccentric | Susumu Hasegawa, Takahisa Ueno | 2002-12-17 |
| 6341051 | Disk drive having external shock resistance | Toshiyuki Hachiya, Hiroshi Takekawa, Takuya Kobayashi, Yuji Sasaki | 2002-01-22 |
| 6327120 | Actuator using piezoelectric element and head-positioning mechanism using the actuator | Shinji Koganezawa, Toru Kohei, Yukihiro Uematsu, Tadayoshi Noguchi, Hisashi Nakano +3 more | 2001-12-04 |
| 6128153 | Head position control for a disk drive which performs recording about the rotational center even if the recorded servo information is eccentric | Susumu Hasegawa, Yukihiro Uematsu, Takahisa Ueno, Nobuyuki Suzuki, Keiji Aruga +1 more | 2000-10-03 |
| 6081990 | Method for incorporating disk media into magnetic disk drive | Yasumasa Kuroba, Toru Kohei, Shinji Koganezawa, Mitsuaki Yoshida, Hiroyuki Iwahara | 2000-07-04 |
| 6025973 | Construction for attaching a disk in a disk drive | Yoshifumi Mizoshita, Yasumasa Kuroba, Toru Kouhei, Takao Sugawara, Masaru Matsumoto +4 more | 2000-02-15 |
| 6016237 | Shaft construction of a disk drive | Yoshifumi Mizoshita, Yasumasa Kuroba, Toru Kouhei, Takao Sugawara, Masaru Matsumoto +4 more | 2000-01-18 |
| 5926347 | Magnetic disk drive provided with means for pressing head against disk | Tohru Kouhei, Yasumasa Kuroba | 1999-07-20 |
| 5880904 | Disk drive having a thickness equal to an IC memory card | Yoshifumi Mizoshita, Yasumasa Kuroba, Toru Kouhei, Takao Sugawara, Masaru Matsumoto +4 more | 1999-03-09 |
| 5764441 | Head actuator having reduced and controlled vibration characteristics for high speed disk drive systems | Keiji Aruga, Yasumasa Kuroba | 1998-06-09 |
| 5608592 | Head actuator | Yoshifumi Mizoshita, Yasumasa Kuroba, Toru Kouhei, Takao Sugawara, Masaru Matsumoto +4 more | 1997-03-04 |