Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8804266 | Double servo type magnetic disc apparatus | Masao Hanya | 2014-08-12 |
| 7730763 | Balance corrector | Toru Kohei, Nobuyoshi Nakayama, Shigeyuki Kotake | 2010-06-08 |
| 7697240 | Magnetic head actuator and magnetic disk device having damper material attached to actuator arm | Kei Funabashi | 2010-04-13 |
| 7619854 | Product including filmed screw | Keiji Watanabe, Hiroshi Chiba | 2009-11-17 |
| 7599150 | Head stack assembly, its manufacturing method, and magnetic disc drive having the same | Kenichiro Aoki, Toshiyuki Nakada, Yoshiaki Nagasawa, Nobuyuki Hirono, Yasuhiro Hamada +1 more | 2009-10-06 |
| 7564647 | Filtering device for a magnetic disc apparatus | Masaya Suwa, Yoshiharu Matsuda, Keishi Shimizu, Hiroshi Nagata | 2009-07-21 |
| 7551399 | Head suspension including flexure having as elastic bending section | Takuma Kido, Shinji Koganezawa, Toru Watanabe | 2009-06-23 |
| 7414810 | Magnetic head structure with insulating layer configured to reduce thermal deformation of floating surface towards disk | Kenichiro Aoki, Toshinori Hoshino, Toshiyuki Nakada, Hiroshi Maeda | 2008-08-19 |
| 7336444 | Magnetic head assembly | Takuma Kido, Tomoo Sukagawa | 2008-02-26 |
| 6690549 | Storage device | Koichi Aikawa, Tatsuro Sasamoto, Susumu Yoshida, Akihide Jinzenji, Tomoo Sukagawa +2 more | 2004-02-10 |
| 6567237 | Sound reducing cover seal for information recording apparatus | Hiroyuki Iwahara | 2003-05-20 |
| 6543289 | Rotational vibration testing apparatus | Akihide Jinzenji | 2003-04-08 |
| 6501610 | Detecting circuit for read signal from magnetic recording system using partial response | Takao Sugawara, Umeo Oshio, Takenori Ohshima, Yoshifumi Mizoshita | 2002-12-31 |
| 6487038 | Recording disk drive and method of assembling the same | Mitsuhiro Izumi, Hiroyuki Iwahara, Shinji Fujimoto | 2002-11-26 |
| 6466400 | Magnetic disk drive capable of reducing noise at starting utilizing conjoining, damped washers to support shafts in the disk drive | Hiroyuki Iwahara, Yoshinori Ogawa, Yoshiaki Koizumi, Mitsuhiro Izumi, Mitsuaki Yoshida +1 more | 2002-10-15 |
| 6373654 | Disk device and apparatus for writing reference signal into the device | Hiroyuki Iwahara, Mitsuaki Yoshida, Yasuyoshi Asao, Yasuhiro Miura, Tsuneyori Ino +2 more | 2002-04-16 |
| 6266207 | Sound reducing cover seal for information recording apparatus | Hiroyuki Iwahara | 2001-07-24 |
| 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, Tomoyoshi Yamada, Takahisa Ueno, Nobuyuki Suzuki +1 more | 2000-10-03 |
| 6101453 | Method and apparatus for analyzing vibration of housing of disk device | Masaya Suwa | 2000-08-08 |
| 6064541 | Servo pattern writing method for magnetic disk drives, and magnetic disk drive adopting the method | Tatsuro Sasamoto, Isamu Tomita | 2000-05-16 |
| 6025973 | Construction for attaching a disk in a disk drive | Yoshifumi Mizoshita, Tomoyoshi Yamada, Yasumasa Kuroba, Toru Kouhei, Takao Sugawara +4 more | 2000-02-15 |
| 6016237 | Shaft construction of a disk drive | Yoshifumi Mizoshita, Tomoyoshi Yamada, Yasumasa Kuroba, Toru Kouhei, Takao Sugawara +4 more | 2000-01-18 |
| 6008965 | Disk drive with rectification wall for circulation filter and filter unit therefor | Mitsuhiro Izumi, Tomoo Sukagawa, Takeshi Ohyama, Kazuhiro Suzuki | 1999-12-28 |
| 5995318 | Head positioning control system for disk drives each formed by assembling disks after servo control information is written externally on respective disks and disk drive | Susumu Hasegawa, Yukihiro Uematsu, Shuichi Hashimoto, Kazuhiko Takaishi | 1999-11-30 |
| 5986362 | Magnetic circuit for voice coil motor of flat-coil type | Tomoo Sukagawa | 1999-11-16 |