HS

Hideki Sawaguchi

HI Hitachi: 27 patents #1,104 of 28,497Top 4%
HG HGST: 18 patents #440 of 1,677Top 30%
HB Hgst Netherlands, B.V.: 1 patents #510 of 972Top 55%
Overall (All Time): #63,451 of 4,157,543Top 2%
46
Patents All Time

Issued Patents All Time

Showing 25 most recent of 46 patents

Patent #TitleCo-InventorsDate
8423873 Decoding techniques for correcting errors using soft information Shaohua Yang, Richard Leo Galbraith, Ksenija Lakovic, Yuan Xing Lee, Travis Roger Oenning +2 more 2013-04-16
8144415 Apparatus, signal-processing circuit and device for magnetic recording system Yasutaka Nishida, Hisashi Takano, Hiroyuki Tsuchinaga 2012-03-27
7865799 Recording format for information date, information recording/reproducing cording circuit 2011-01-04
7839590 Method of servo writing for magnetic recording system, magnetic recording system Yasutaka Nishida, Takehiko Hamaguchi, Hisashi Takano 2010-11-23
7817367 Apparatus, signal-processing circuit and device for magnetic recording system Yasutaka Nishida, Hisashi Takano, Hiroyuki Tsuchinaga 2010-10-19
7725800 Decoding techniques for correcting errors using soft information Shaohua Yang, Richard Leo Galbraith, Ksenija Lakovic, Yuan Xing Lee, Travis Roger Oenning +2 more 2010-05-25
7590920 Reduced complexity error correction encoding techniques Shaohua Yang, Mario Blaum, Richard Leo Galbraith, Ksenija Lakovic, Yuan Xing Lee +2 more 2009-09-15
7545595 Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle Takehiko Hamaguchi, Atsushi Nakamura, Yasutaka Nishida, Masafumi Mochizuki 2009-06-09
7526716 Recording/regenerating device, method of encoding error correction, method of recording data Masaharu Kondou 2009-04-28
7526710 Recording format for information date, information recording/reproducing cording circuit 2009-04-28
7502189 Apparatus, signal-processing circuit and device for magnetic recording system Yasutaka Nishida, Hisashi Takano, Hiroyuki Tsuchinaga 2009-03-10
7443625 Magnetic disk drive Takehiko Hamaguchi, Atsushi Nakamura, Yasutaka Nishida, Hisashi Takano, Yohji Maruyama +2 more 2008-10-28
7436611 Method of servo writing for magnetic recording system, magnetic recording system Yasutaka Nishida, Takehiko Hamaguchi, Hisashi Takano 2008-10-14
7296215 Signal processing method and signal processing circuit Morishi Izumita, Terumi Takashi, Seiichi Mita 2007-11-13
7259929 Device and signal processing circuit for magnetic recording, magnetic recording apparatus Yasutaka Nishida, Hisashi Takano, Toru Matsushita 2007-08-21
7213195 Data decoding method and circuit and information recording and reproducing apparatus using the same Yasutaka Nishida, Masafumi Mochizuki, Hiroyuki Tsuchinaga 2007-05-01
7092181 Magnetic recording apparatus Yasutaka Nishida, Takehiko Hamaguchi 2006-08-15
7075743 Method of servo writing for magnetic recording system, magnetic recording system Yasutaka Nishida, Takehiko Hamaguchi, Hisashi Takano 2006-07-11
7076721 Data recording/readback method and data recording/readback device for the same 2006-07-11
7068462 Magnetic recording apparatus Yasutaka Nishida, Takehiko Hamaguchi 2006-06-27
7057838 Magnetic disk device having a write head to write by shifting in a radial direction Takehiko Hamaguchi, Atsushi Nakamura, Yasutaka Nishida, Hisashi Takano, Yohji Maruyama +2 more 2006-06-06
7046745 Signal processing circuit Seiichi Mita, Naoya Kobayashi, Masaharu Kondo 2006-05-16
7027248 Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle Takehiko Hamaguchi, Atsushi Nakamura, Yasutaka Nishida, Masafumi Mochizuki 2006-04-11
7024617 Data decoding method and circuit and information recording and reproducing apparatus using the same Yasutaka Nishida, Masafumi Mochizuki, Hiroyuki Tsuchinaga 2006-04-04
6912100 Device and signal processing circuit for magnetic recording, magnetic recording apparatus Yasutaka Nishida, Hisashi Takano, Toru Matsushita 2005-06-28