TH

Toshiyuki Haruna

HI Hitachi: 7 patents #5,859 of 28,497Top 25%
HC Hitachi Computer Peripherals Co.: 1 patents #41 of 133Top 35%
Overall (All Time): #764,081 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5742933 Rotary memory storage device with cache control method and apparatus Akira Kojima, Tsuneo Hirose, Masahiko Sato, Tetsuzo Kobashi 1998-04-21
5584012 Cache control method and rotary storage device having cache control Akira Kojima, Tsuneo Hirose, Masahiko Sato, Tetsuzo Kobashi 1996-12-10
5105318 Head positioning device for use in magnetic disk equipment Katsuhiro Tsuneta, Yuji Yoshida, Akira Kojima 1992-04-14
5012166 Control system for brushless DC motor Nobuyoshi Ushijima, Hiroshi Masuda, Akira Ishibashi, Masahiko Satou, Norikazu Takayama +1 more 1991-04-30
4803572 Recording/reproducing method and apparatus of magnetic disk unit in which playback commences before the magnetic head is completely centered on the track Kenji Nishimura, Yuji Yoshida, Kiyotaka Takahashi, Tsuneo Hirose, Katsuhiro Tsuneta +4 more 1989-02-07
4727439 Magnetic disc unit system Motohiro Nakai, Asao Sasamoto, Kazuo Nakagoshi, Hideaki Amano 1988-02-23
4542429 Apparatus for reducing starting adhesion between a magnetic disc and flying head Hiroshi Nishida 1985-09-17