OB

Osamu Beppu

HI Hitachi: 7 patents #5,859 of 28,497Top 25%
HG HGST: 4 patents #738 of 1,677Top 45%
MC Mitsui Engineering & Shipbuilding Co.: 1 patents #166 of 496Top 35%
Overall (All Time): #423,118 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8130472 Head support for a magnetic disk device Hirokazu Tanizawa, Gentaro Nakamura, Takahisa Okada 2012-03-06
7511919 Magnetic disk apparatus Kenji Suzuki, Kouki Uefune, Takako Hayakawa 2009-03-31
7133242 Magnetic disk drive and magnetic disk drive control Yoshikatsu Fujii, Sadahiro Nishida, Shinji Matsushita, Hidefumi Tominaga 2006-11-07
6965487 Controller for information recording and reproducing device and control method for the information recording and reproducing device Kazuyoshi Hanada 2005-11-15
6870700 Motor control method for magnetic disk drive 2005-03-22
5463511 Spindle unit having pre-load mechanism Masaaki Nakano, Tomoaki Inoue, Hideaki Amano, Akio Takatsuka, Kenji Mori +2 more 1995-10-31
5008573 Magnetic disk enclosure with detachable stator Toshihiro Moribe, Youjiro Tezuka, Akira Chuma 1991-04-16
4894735 Disk drive housing structure Mikio Takahashi, Yoshihiro Moribe, Hideo Maekawa, Takaaki Abo, Yasuo Yamamoto +1 more 1990-01-16
4825313 Method for adjustably positioning a transducer for a disc drive Yoshihiro Moribe, Mikio Takahashi 1989-04-25
4775825 Positioning method and apparatus therefor Yoshihiro Moribe, Mikio Takahashi 1988-10-04
4704997 Device for preventing abnormal flow of gas fuel from gas fuel injector of diesel engine Yasuhisa Endo, Shuhei Mizuhara, Satoshi Murakami, Saiji Toshioka 1987-11-10
4703242 Control method and apparatus for positioning servo system Kiyotake Kumazawa, Noriaki Minamide, Yoshihiro Moribe, Mikio Takahashi, Masahiro Mitamura 1987-10-27