RT

Ryuji Tsuchiyama

HI Hitachi: 12 patents #3,472 of 28,497Top 15%
HG HGST: 5 patents #47 of 483Top 10%
Overall (All Time): #277,572 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
8848318 Magnetic head slider apparatus, magnetic disk drive apparatus, and suspension thereof Takuya Matsumoto, Irizo Naniwa 2014-09-30
7936536 Magnetic recording medium having lands with curved upper surfaces and magnetic recording and reproducing apparatus Masahumi Mochizuki, Kyosuke Ono, Yuko Tsuchiya, Hiroshi Ikekame 2011-05-03
7474504 Magnetic head heating element in a disk drive Junguo Xu, Mikio Tokuyama, Masaaki Matsumoto 2009-01-06
7385786 Magnetic head slider and a magnetic disk device in which the slider is mounted Mikio Tokuyama, Mieko Ishii, Youichi Kawakubo, Hiromitsu Tokisue 2008-06-10
7072146 Magnetic head slider and a magnetic disk device in which the slider is mounted Mikio Tokuyama, Mieko Ishii, Youichi Kawakubo, Hiromitsu Tokisue 2006-07-04
7042678 Magnetic head slider and magnetic disc unit Hiroshi Tani, Mikio Tokuyama, Hidekazu Kohira, Masayuki Kurita, Mitsuhiro Shoda +2 more 2006-05-09
7038883 Magnetic head slider, support therefor and magnetic disk unit Hidekazu Kohira, Masaaki Matsumoto, Kiyoshi Hashimoto, Junguo Xu 2006-05-02
6985334 Magnetic head slider and a magnetic disk device in which the slider is mounted Mikio Tokuyama, Mieko Ishii, Youichi Kawakubo, Hiromitsu Tokisue 2006-01-10
6963464 Magnetic head heating element in a disk drive Junguo Xu, Mikio Tokuyama, Masaaki Matsumoto 2005-11-08
6961201 Magnetic disk apparatus Masaki Odai, Kyo Akagi 2005-11-01
6785095 Magnetic disc apparatus with slider having specified location of action point of equivalent load Hiromitsu Tokisue, Masaaki Matsumoto, Yoshihiko Miyake, Kiyoshi Hashimoto 2004-08-31
6633455 Slider capable of reducing distance between head element and recording medium, and recording apparatus incorporating same Hiromitsu Tokisue, Hiroshi Tani, Mikio Tokuyama, Junguo Xu 2003-10-14
6597537 Magnetic head slider and a magnetic disk device in which the slider is mounted Mikio Tokuyama, Mieko Ishii, Youichi Kawakubo, Hiromitsu Tokisue 2003-07-22
6597536 Magnetic head slider Masaaki Matsumoto, Kiyoshi Hashimoto, Xu Junguo 2003-07-22
6493188 Magnetic disc apparatus having slider which reduces variation in lift-up caused by change in air pressure Hiromitsu Tokisue, Masaaki Matsumoto, Yoshihiko Miyake, Kiyoshi Hashimoto 2002-12-10
6452751 Magnetic head slider and a magnetic disk device in which the slider is mounted Mikio Tokuyama, Mieko Ishii, Youichi Kawakubo, Hiromitsu Tokisue 2002-09-17
6373661 Magnetic head slider and a magnetic disk device in which the slider is mounted Mikio Tokuyama, Mieko Ishii, Youichi Kawakubo, Hiromitsu Tokisue 2002-04-16