ES

Eiji Soga

HG HGST: 8 patents #217 of 1,677Top 15%
IBM: 3 patents #26,272 of 70,183Top 40%
HB Hgst Netherlands, B.V.: 2 patents #341 of 972Top 40%
WT Western Digital Technologies: 1 patents #1,787 of 3,180Top 60%
Overall (All Time): #332,845 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
12272387 Multi-layer load beam flexure for magnetic storage device Takuma Muraki, Yoshinobu Noguchi, Hiroyasu Tsuchida 2025-04-08
9036305 Magnetic recording disk drive with write driver to write head transmission line with multiple segments having different numbers of conductive traces John Contreras, Nobumasa Nishiyama, Kazuhiro Nagaoka, Rehan Ahmed Zakai 2015-05-19
8699166 Magnetic head drive device with micro-actuators of end arms rotating in a direction opposite micro-actuators of intermediate arms Kenji Suzuki, Shinsuke Nakagawa, Toshihiko Shimizu, Takaaki Deguchi, Mutsuro Ohta 2014-04-15
8305714 Voice-coil motor with voice coils configured oriented in the same direction and substantially overlayed to reduce head vibrations in a disk drive Kenji Suzuki, Hiromitsu Masuda, Mutsuro Ohta, Takaaki Deguchi 2012-11-06
8213128 Head-gimbal assembly including piezoelectric elements affixed to a deformable plate having a hole therein and affixed to a base plate wherein the base plate has projection members on front edges thereof Hiroyasu Tsuchida 2012-07-03
8102628 Disk drive and head assembly having hole sequences Ryohei Ota, Nobumasa Nishiyama, Hiroyasu Tsuchida 2012-01-24
7929254 Disk drive device and carriage of actuator with damping member Masakazu Sasaki, Hajime Eguchi, Hiromitsu Masuda 2011-04-19
7733601 Hard disk drive adapted to prevent release of strain between voice coil motor and base Satoshi Hayakawa, Kohichi Takeuchi, Takashi Kumazawa 2010-06-08
7649717 Data storage device with support for wiring structure portion to suppress fluttering Satoshi Hayakawa, Kohichi Takeuchi, Takeshi Chawanya 2010-01-19
7522385 Rotating disk storage device with suppressed arm fluttering Satoshi Hayakawa, Takeshi Chawanya, Kohichi Takeuchi 2009-04-21
7154712 Wire support member and rotary disk storage device Satoshi Hayakawa, Takeshi Chawanya, Kohichi Takeuchi 2006-12-26
6614613 Phase technique for active damping in a servo-controlled actuator Fu-Ying Huang, Naoyuki Kagami, Tetsuo Semba, Shingo Tsuda 2003-09-02
6604431 Apparatus and method for fixing and checking connections of piezoelectric sensor, actuator, and disk unit Shingo Tsuda, Kiyoshi Satoh 2003-08-12
6392845 Magnet design for active damping of disk drive actuator Shingo Tsuda, Kiyoshi Satoh, Fu-Ying Huang, Tetsuo Senba 2002-05-21