Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10629234 | Data storage device computing notch filters for multiple temperatures | Hengchang Guo, Chuanwen Ji, Alexander Babinski, Shinsuke Nakagawa | 2020-04-21 |
| 8503124 | Head servo control system and head servo control method | Hiroshi Uchida, Chikako Sasaki, Isao Yoneda, Masahito Nitta | 2013-08-06 |
| 7986486 | Hard-disk drive, method of controlling the hard-disk drive, and method of manufacturing the hard-disk drive | Jiro Abe, Hiroshi Uchida | 2011-07-26 |
| 7724457 | Method and system for time-shift based rotational vibration sensing in disk drives | Hien Dang, Isao Yoneda, Yuzo Nakagawa, Sri M. Sri-Jayantha | 2010-05-25 |
| 7675701 | Method and apparatus for detecting servo timing marks in a magnetic disk system | Hideki Ohzeki, Noboru YOSHIDA, Kazuyuki Ishibashi, Isao Yoneda, Toshiaki Wada | 2010-03-09 |
| 7595955 | Disk drive device and method for error recovery procedure therefor | Mirei Hosono, Kazunari Tsuchimoto, Hideki Ohzeki, Isao Yoneda, Kazuyuki Ishibashi +1 more | 2009-09-29 |
| 7561365 | Disk drive and control method thereof | Masaaki Noguchi, Gaku Ikedo, Mirei Hosono | 2009-07-14 |
| 7489470 | Magnetic recording apparatus | Hiroshi Uchida, Mirei Hosono, Hideki Ohzeki | 2009-02-10 |
| 7442628 | Semiconductor laser manufacturing method | Keiji Yamane, Isao Kidoguchi, Toshiya Kawata | 2008-10-28 |
| 7298566 | Data storage device and control method therefor involving flying height | Kazuyuki Ishibashi, Satoshi Ishii, Masaaki Noguchi | 2007-11-20 |
| 7277251 | Data reliability improvement at low temperature | Satoshi Ishii, Masato Taniguchi, Noboru YOSHIDA | 2007-10-02 |
| 7271976 | Magnetic disk drive and method for seek operations with reduced noise | Satoshi Ishii, Isao Yoneda | 2007-09-18 |
| 7247514 | Semiconductor device and method for producing the same | Keiji Yamane, Takashi Miyamoto, Isao Kidoguchi | 2007-07-24 |
| 7209311 | Data storage device and control method therefor to prevent off-track writing | Isao Yoneda, Hideki Ohzeki, Naoyuki Minami | 2007-04-24 |
| 7197055 | Semiconductor laser | Masahiro Kume, Toshiya Kawata, Isao Kidoguchi | 2007-03-27 |
| 7192851 | Semiconductor laser manufacturing method | Keiji Yamane, Isao Kidoguchi, Toshiya Kawata | 2007-03-20 |
| 7142576 | Semiconductor laser | Keiji Yamane, Isao Kidoguchi, Shoji Fujimori | 2006-11-28 |
| 6985504 | Semiconductor laser and method for manufacturing the same | Keiji Yamane, Isao Kidoguchi, Shoji Fujimori | 2006-01-10 |
| 6981205 | Data storage apparatus, read data processor, and read data processing method | Yukio Fukushima, Katsuhiko Katoh, Shunsuke Kobayashi, Takashi Kuroda, Yuzo Nakagawa +3 more | 2005-12-27 |
| 6947243 | Method and system for time-shift based rotational vibration sensing in disk drives | Hien Dang, Isao Yoneda, Yuzo Nakagawa, Sri M. Sri-Jayantha | 2005-09-20 |
| 6914745 | Head movement controlling based on servo generated speed control values | Masayuki Takeuchi, Yuzo Nakagawa, Yukio Fukushima | 2005-07-05 |
| 6721844 | Data storage unit and method for starting data storage unit | Kazushige Okutsu, Yukio Fukushima, Toshio Kakihara | 2004-04-13 |
| 6671110 | Method and apparatus for detecting abnormal magnetic head fly height | Sachiyo Baba, Yukio Fukushima, Hidetsugu Tanka | 2003-12-30 |
| 6622206 | Method for controlling write cache transfer and disk unit | Atsushi Kanamaru, Hideo Asano | 2003-09-16 |
| 6597530 | Method and apparatus for disk drive seek control | Hideo Asano, Kenji Okada, Koichi Arai, Hideki Ohzeki | 2003-07-22 |