TO

Takayoshi Ohtsu

HG HGST: 19 patents #91 of 1,677Top 6%
HI Hitachi: 7 patents #5,859 of 28,497Top 25%
HB Hgst Netherlands, B.V.: 4 patents #198 of 972Top 25%
Overall (All Time): #125,548 of 4,157,543Top 4%
30
Patents All Time

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDate
8786986 Head-slider including thin-film magnetic-recording head having reduced thermal protrusion Shigeo Fujita, Masahiko Soga, Hideaki Tanaka, Yuji Ueda, Tomohiro Okada +2 more 2014-07-22
8711520 Device with a floating head having a heater element Minoru Koike, Eiji Nakanishi, Yoshinori Takeuchi, Hiroshi Agari, Hiroyuki Matsumoto 2014-04-29
8477455 Noise and particle shield for contact sensor in a slider Masaru Furukawa, Yuki Shimizu, Junguo Xu, Yohji Maruyama, Toshiya Shiramatsu 2013-07-02
8431255 Galvanomagnetic device and magnetic sensor Das Sarbanoo, Hiroyuki Suzuki 2013-04-30
8335057 CPP magnetoresistive head Masahiro Osugi, Shigeo Fujita, Katsuro Watanabe, Koji Kataoka 2012-12-18
8284521 Magnetic head slider 2012-10-09
8270109 Magnetic head slider inhibiting a side erase and method of manufacturing thereof 2012-09-18
8221192 Magnetic-recording-disk test-head and method of manufacturing a magnetic-recording disk using the magnetic-recording-disk test-head Hidekazu Kashiwase, Hiroyuki Suzuki, Mitsuhiro Shoda, Kiyoshi Hashimoto 2012-07-17
8184406 Thin film magnetic head having an angled insulating film Nubuo Yoshida, Katsuro Watanabe 2012-05-22
7983005 Thin film magnetic head with flying height adjustment capability Nobumasa Nishiyama 2011-07-19
7911738 Magnetic head slider with resistive heating film meandering in stacking direction Masayuki Kurita, Toshiya Shiramatsu, Masanori Tanabe 2011-03-22
7738214 Thin film magnetic head 2010-06-15
7723982 Testing and manufacturing method of magnetic heads Shinji Sasaki, Makoto Torigoe, Kouji Kataoka 2010-05-25
7719796 Suspension for hard disk drive which enables easy dynamic electric testing Haruhide Takahashi, Kousaku Wakatsuki, Shinobu Hagiya, Kouji Kataoka, Yohtaroh Ichimura 2010-05-18
7684153 Magnetic head slider with ground and heater terminal arrangement and magnetic head assembly Nobumasa Nishiyama 2010-03-23
7652848 Suspension for magnetic head slider characteristic test Shinobu Hagiya, Haruhide Takahashi, Kousaku Wakatsuki 2010-01-26
7623323 Magnetoresistive head and read/write separation-type magnetic head Koichi Nishioka, Shuichi Kojima, Koji Kataoka 2009-11-24
7595952 Magnetic head evaluation apparatus and method for manufacturing magnetic disk drive using the same 2009-09-29
7558188 Magnetic head having durability against static electricity with modified time constant Shoji Natori 2009-07-07
7292416 CPP magneto resistive head with decreased variation in asymmetry and output Satoshi Shigematsu, Kouji Nishioka, Takao Imagawa, Kouji Kataoka, Masatoshi Arasawa +1 more 2007-11-06
7230803 Magnetic head with magnetic domain control structure having anti-ferromagnetic layer and plural magnetic layers Akira Morinaga, Koichi Nishioka, Norifumi Miyamoto, Shuichi Kojima 2007-06-12
7221544 Magnetic recording apparatus and magnetic head Shinji Narishige 2007-05-22
7031123 Magneto resistive head and magnetic recording apparatus Satoshi Shigematsu, Kouji Nishioka, Takao Imagawa, Kouji Kataoka, Masatoshi Arasawa +1 more 2006-04-18
6999270 Magnetic head and a magnetic disk drive Katsuro Watanabe, Kouji Kataoka, Nobuo Yoshida, Kikuo Kusukawa 2006-02-14
6903906 Magnetic head with a lamination stack to control the magnetic domain Akira Morinaga, Koichi Nishioka, Norifumi Miyamoto, Shuichi Kojima 2005-06-07