YY

Yuzo Yamaguchi

HI Hitachi: 24 patents #1,340 of 28,497Top 5%
HG HGST: 4 patents #68 of 483Top 15%
Overall (All Time): #139,819 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
7643245 Magnetic disc unit with gap between magnetic disc and shroud Mikio Tokuyama, Hayato Shimizu, Satomitsu Imai, Shozo Saegusa, Masahiko Sega +1 more 2010-01-05
7336440 Magnetic disc unit with gap between magnetic disc and shroud Mikio Tokuyama, Hayato Shimizu, Satomitsu Imai, Shozo Saegusa, Masahiko Sega +1 more 2008-02-26
7330334 Magnetic disk apparatus with shroud and having open space downstream of moveable arms in communication with bypass channel Hayato Shimizu, Masao Iwakura, Shigeo Nakamura, Kazuo Sakai, Shigenori Togashi +7 more 2008-02-12
7072141 Magnetic disc unit with range of gap between disc and shroud Mikio Tokuyama, Hayato Shimizu, Satomitsu Imai, Shozo Saegusa, Masahiko Sega +1 more 2006-07-04
6898049 Magnetic disk apparatus with air flow bypass channel Hayato Shimizu, Masao Iwakura, Shigeo Nakamura, Kazuo Sakai, Shigenori Togashi +7 more 2005-05-24
6751050 Magnetic disc unit Mikio Tokuyama, Hayato Shimizu, Satomitsu Imai, Shozo Saegusa, Masahiko Sega +1 more 2004-06-15
6665139 Magnetic-disc unit with gap between disc and shroud Mikio Tokuyama, Hayato Shimizu, Satomitsu Imai, Shozo Saegusa, Masahiko Sega +7 more 2003-12-16
6600626 Magnetic disk apparatus Hayato Shimizu, Masao Iwakura, Shigeo Nakamura, Kazuo Sakai, Shigenori Togashi +7 more 2003-07-29
5390059 Flying head slider supporting mechanism having active air pressure control Mikio Tokuyama, Katsuaki Kikuchi, Kousaku Wakatasuki, Shoi SUZUKI, Yoshinori Takeuchi 1995-02-14
5251083 Flying head slider and method of producing the same Yoshinori Takeuchi, Fumitaka Muranushi, Katsuyuki Tanaka, Kanji Kawakami, Hiroshi Daito +1 more 1993-10-05
5245489 Guide arm with a fixed printed circuit board for magnetic disk drive Hideyuki Kimura, Takuji Torii, Tsuyoshi Takahashi, Hiroshi Nishida, Kenji Mori +3 more 1993-09-14
5243482 Floating type magnetic head supporting assembly including a coupling to a slider side surface Mikio Tokuyama, Yoshinori Takeuchi, Taichi Sato, Satomitsu Imai 1993-09-07
5223998 Magnetic head slider unit having a float slider and magnetic head mounted thereon for contact magnetic recording Mikio Tokuyama 1993-06-29
5177652 Dual-actuator transducer position control apparatus for seeking and following track on rotary disk Takayuki Munemoto 1993-01-05
5140482 Guide arm with affixed printed circuit board for magnetic disk drive Hideyuki Kimura, Takuji Torii, Tsuyoshi Takahashi, Hiroshi Nishida, Kenji Mori +3 more 1992-08-18
5136438 Magnetic disk device having an auto-loading mechanism and a dust collecting mechanism Koosaku Wakatsuki, Shoji Suzuki, Noriaki Okamoto, Katsuaki Kikuchi, Mikio Tokuyama +2 more 1992-08-04
5128821 Flying head slider and magnetic disk unit employing same Yoshinori Takeuchi, Fumitaka Muranushi, Katsuyuki Tanaka, Kanji Kawakami, Hiroshi Daito +1 more 1992-07-07
5107383 Transducer supporting device for supporting a transducer in a rotary disk storage unit Yoshinori Takeuchi, Taichi Sato, Hiroshi Daito, Marutomo Goto 1992-04-21
5031059 Rotating disk storage device with cooling gas flow control Kenichiro Matsubara, Takeshi Shibuya, Hiroshi Nishida 1991-07-09
5020041 Magneto-optical memory apparatus having a floating magnetic head Takeshi Nakao, Masahiro Ojima, Yoshinori Miyamura, Toyoji Okuwaki, Youichi Kawakubo +1 more 1991-05-28
5014144 Magnetic head slider supporting apparatus Taichi Sato, Yoshiharu Mouri, Kihachiro Tanaka, Yokuo Saitoh, Hiroshi Daito +3 more 1991-05-07
5012359 Magnetic disk apparatus Takashi Kohno, Osami Matsushita, Michiaki Ida, Katsuaki Kikuchi, Taro Sonoda 1991-04-30
4984114 Flying head slider Yoshinori Takeuchi, Katsuyuki Tanaka, Fumitaka Muranushi, Hiroshi Daito 1991-01-08
4922356 Transducer supporting apparatus and disk storage unit Yoshinori Takeuchi, Yokuo Saitoh, Hiroshi Daito, Hiroyasu Nakajima, Yoshiakira Karakama +3 more 1990-05-01
4884154 Flanged transducer supporting arm for a magnetic head/arm assembly Shuji Onodera, Taichi Sato, Kihachiro Tanaka, Yokuo Saitoh, Hiroshi Daito +4 more 1989-11-28