TH

Tetsuya Hamaguchi

HI Hitachi: 18 patents #2,067 of 28,497Top 8%
HG HGST: 5 patents #47 of 483Top 10%
FC Furukawa Electric Co.: 2 patents #850 of 2,370Top 40%
TT The University Of Tokyo: 2 patents #500 of 2,633Top 20%
Overall (All Time): #165,090 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8118886 Fuel mixture, fuel reliquefying system, fuel cartridge using the same, and method of extracting fuel; for fuel cells Hiroaki Rikihisa, Yoshinori Matsunaga, Takeshi Ooi 2012-02-21
7632388 Liquid actuator Hiroaki Rikihisa, Takeshi Ooi 2009-12-15
7545607 Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same Toshihiko Shimizu, Toshihiro Arisaka, Hiromitsu Masuda, Gentaro Nakamura, Takenori Atsumi 2009-06-09
7110223 Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same Toshihiko Shimizu, Toshihiro Arisaka, Hiromitsu Masuda, Gentaro Nakamura, Takenori Atsumi 2006-09-19
7031118 Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same Toshihiko Shimizu, Toshihiro Arisaka, Hiromitsu Masuda, Gentaro Nakamura, Takenori Atsumi 2006-04-18
6982852 Carriage arm assembly for magnetic disk drive Shin Nagahiro, Masahiko Sega, Toshihiro Arisaka, Toshihiko Shimizu, Hiromitsu Masuda +2 more 2006-01-03
6879467 Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same Toshihiko Shimizu, Toshihiro Arisaka, Hiromitsu Masuda, Gentaro Nakamura, Takenori Atsumi 2005-04-12
6876513 Rotary disk type storage device Keiko Watanabe, Tatsuya Ito, Yuji Nishimura 2005-04-05
6839956 Method for assembling disc apparatus Keiko Watanabe, Takashi Matsuki, Shizuo Yamazaki 2005-01-11
6636385 Magnetic disc apparatus having actuator for head positioning mechanism Kei Yasuna, Takashi Yamaguchi, Keiko Watanabe 2003-10-21
6597532 Information recording disk apparatus Kazuaki Usui, Keiko Watanabe, Kei Yasuna, Tsuyoshi Arai 2003-07-22
6549377 Magnetic disk drive with a movable ramp mechanism for relieving impact upon loading and unloading Takeshi Yoshida, Tomokazu Ishii, Shozo Saegusa, Shinsuke Higuchi 2003-04-15
6490116 Retraction control method and magnetic disk apparatus Keiko Watanabe, Takashi Yoshida 2002-12-03
6462910 Magnetic disk apparatus Toshihiko Shimizu, Shinobu Yoshida, Keiko Watanabe, Toshihiro Arisaka, Kenji Mori 2002-10-08
6373659 Magnetic slider head and method of producing the same Keiko Watanabe, Toshihiko Shimizu, Toshihiro Arisaka, Shinobu Yoshida 2002-04-16
6369988 Magnetic disk drive with a movable ramp mechanism for relieving impact upon loading and unloading Takeshi Yoshida, Tomokazu Ishii, Shozo Saegusa, Shinsuke Higuchi 2002-04-09
6307716 Magnetic disk device Toshihiko Shimizu, Keiko Watanabe, Takeshi Yoshida 2001-10-23
6226155 Ramp load type magnetic disk unit Keiko Watanabe, Toshihiko Shimizu 2001-05-01
6122148 Magnetic head slider and method of production thereof Keiko Watanabe, Toshihiko Shimizu, Toshihiro Arisaka, Shinobu Yoshida 2000-09-19
6069774 Magnetic head support device for magnetic disc recording device Toshihiro Arisaka, Keiko Watanabe, Toshihiko Shimizu 2000-05-30
5999369 Magnetic disk apparatus Toshihiko Shimizu, Shinobu Yoshida, Keiko Watanabe, Toshihiro Arisaka, Kenji Mori 1999-12-07
5930082 Magnetic head support device for magnetic disc recording device Toshihiro Arisaka, Keiko Watanabe, Toshihiko Shimizu 1999-07-27
5835305 Magnetic disk apparatus employing liquid bearing type or physical contact type magnetic head slider Yoshihiro Shiroishi, Yukio Kato, Masaaki Matsumoto, Hiromitsu Tokisue, Takayuki Nakakawaji +1 more 1998-11-10
5820964 Magnetic disk, and magnetic disk apparatus Takayuki Nakakawaji, Shuji Imazeki, Yutaka Ito, Yuko Morita, Mitsuyoshi Shouji +5 more 1998-10-13
5530605 Magnetic-head slider support mechanism and magnetic recording apparatus Yukio Katou, Masaaki Matsumoto, Masaru Matsushima 1996-06-25