Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8233230 | Method and apparatus for controlling head with spin-torque oscillator in a disk drive | Koji Yano, Kazuhito Shimomura, Masayuki Takagishi, Kenichiro Yamada | 2012-07-31 |
| 8203804 | Head gimbal assembly and disk drive with the same | Tomoko Taguchi, Yuichi Yamada | 2012-06-19 |
| 8034472 | Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproducing apparatus | Shinichi Ishibashi, Migaku Takahashi, Shin Saito, Yuzo Sasaki, Atsushi Hashimoto +2 more | 2011-10-11 |
| 8034471 | Magnetic recording medium, method of manufacturing magnetic recording medium and magnetic recording reproducing apparatus | Shinichi Ishibashi, Migaku Takahashi, Shin Saito, Yuzo Sasaki, Atsushi Hashimoto +2 more | 2011-10-11 |
| 8012613 | Magnetic recording medium, process for producing same, and magnetic recording reproducing apparatus | Migaku Takahashi, Shin Saito, Tomoyuki Maeda, Yuzo Sasaki, Ryuji Sakaguchi | 2011-09-06 |
| 7848041 | Method and apparatus for correcting data errors in a disk drive | — | 2010-12-07 |
| 7791829 | Apparatus for assisting write operation using high frequency magnetic field in disk drive | Junichi Akiyama, Kenichiro Yamada, Hitoshi Iwasaki, Masayuki Takagishi, Tomomi Funayama +2 more | 2010-09-07 |
| 7031120 | Disk drive with magnetic head for perpendicular magnetic recording | — | 2006-04-18 |
| 7023634 | Data channel for processing user data and servo data in a disk drive adopting perpendicular magnetic recording system | — | 2006-04-04 |
| 6999257 | Magnetic disk drive with structure for avoiding DC magnetic disturbance on a disk surface | — | 2006-02-14 |
| 6930843 | Disk drive | Yuka Aoyagi, Tomoko Taguchi | 2005-08-16 |
| 6903890 | Method and apparatus for write compensation of perpendicular magnetic recording in disk drive | Yuka Aoyagi | 2005-06-07 |
| 6894855 | Magnetic disk drive including read channel for processing differentiated read signal | Yuka Aoyagi | 2005-05-17 |
| 6791800 | Device for suppressing magnetic noise of dual-layered disk in a disk drive | Yoichiro Tanaka | 2004-09-14 |
| 6707643 | Perpendicular magnetic recording head having narrow recording gap and perpendicular magnetic recording apparatus using the same | Tetsuya Roppongi, Shinichi Horinouchi, Haruyuki Morita, Mikio Matsuzaki | 2004-03-16 |
| 6618227 | Combination perpendicular record and reproduce head having an auxiliary pole recessed from an air bearing surface and spaced from one of a pair of reproducing element sheilds | Koji Yano | 2003-09-09 |