Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7245457 | Magnetic disk drive using femto slider and having predetermined linear velocity and gram load configuration | Kenji Kuroki, Taichi Nakamura, Akihiro Sera | 2007-07-17 |
| 7079337 | Bi staple flying height detection by BEMF control profile and data integrity problem protection | Chikako Sasaki, Kenji Okada | 2006-07-18 |
| 7035034 | Data storage device, control device, off-track control method, and control method | Tetsuo Semba, Naoyuki Kagami, Gaku Ikedo | 2006-04-25 |
| 7019921 | Control method and apparatus for reducing the effects of hard disk contamination | Naoyuki Kagami, Masayuki Kanamaru, Shunichiroh Ohta, Toshihiko Tsunokawa | 2006-03-28 |
| 6930849 | Disk drive unit, controller for actuator, and method for controlling hard disk drive and disk drive unit | Shiroh Aono, Shunichiro Ota, Toshiro Unoki, Minoru Hashimoto | 2005-08-16 |
| 6831809 | Rotary recording apparatus and method of controlling the apparatus | Naoyuki Kagami, Kenji Okada, Tetsuo Semba, Hiroshi Uchida, Akinori Yuba | 2004-12-14 |
| 6754019 | System and method for implementing a rotary memory device | Naoyuki Kagami, Hiroshi Uchida, Takashi Kuroda | 2004-06-22 |
| 6707634 | Control method and apparatus for reducing the effects of hard disk contamination | Naoyuki Kagami, Masayuki Kanamaru, Shunichiroh Ohta, Toshihiko Tsunokawa | 2004-03-16 |
| 6690537 | Method and system for controlling the positioning of a read/write head of a data recording device | Naoyuki Kagami, Hiroshi Uchida | 2004-02-10 |
| 6567230 | Method and system for performing positioning control of a head actuator in a disk device utilizing a digital filter | Naoyuki Kagami, Sri M. Sri-Jayantha, Tatsuya Sakai, Isao Yoneda, Hien Dang +1 more | 2003-05-20 |
| 6549349 | Adaptive vibration control for servo systems in data storage devices | Sri M. Sri-Jayantha, Arun Sharma, Hien Dang, Naoyuki Kagami, Yuzo Nakagawa +1 more | 2003-04-15 |
| 6529344 | Method and system for compensating a head positioning servo in a storage device | Naoyuki Kagami | 2003-03-04 |
| 6414809 | Data storage device servo control apparatus and method | Tatsuya Sakai, Naoyuki Kagami, Takashi Kuroda | 2002-07-02 |
| 6377418 | Digital filter, servo control unit, and disk drive | Naoyuki Kagami, Hien Dang, Arun Sharma, Sri M. Sri-Jayantha | 2002-04-23 |
| 6337777 | Method and apparatus for controlling data write operations | Nobuya Matsubara, Naoyuki Kagami | 2002-01-08 |
| 6324132 | Method and system for controlling the positioning of a read/write head of a data recording device | Naoyuki Kagami, Hiroshi Uchida | 2001-11-27 |
| 6219196 | Method and apparatus for suppressing mechanical resonance in a disk drive storage device using a notch filter | Tetsuo Semba, Naoyuki Kagami | 2001-04-17 |
| 6218794 | Spindle motor startup method and apparatus | Yasuhito Shimizu, Naoyuki Kagami, Akihiro Ohyama | 2001-04-17 |
| 5872677 | Magnetic head position detecting method and magnetic disk apparatus | Naoyuki Kagami, Yuzo Nakagawa | 1999-02-16 |
| 5231625 | Optical disk drive wherein a preset reading laser power is used to generate a desired white laser power | Kazuo Hokozono, Tatsuoki Shinohara, Hideo Ueno | 1993-07-27 |