HT

Hisashi Takamatsu

HI Hitachi: 17 patents #2,231 of 28,497Top 8%
Fujitsu Limited: 9 patents #3,538 of 24,456Top 15%
OJ Oclaro Japan: 2 patents #36 of 108Top 35%
OJ Opnext Japan: 1 patents #100 of 185Top 55%
Overall (All Time): #132,349 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
4926272 Method for controlling a rotating storage unit Hisaharu Takeuchi, Mamoru Tohchi 1990-05-15
4807180 Multiple control system for disk storage and method for realizing same Hisaharu Takeuchi, Akira Kurano, Yoshiro Shiroyanagi, Katsunori Nakamura 1989-02-21
4805048 Method for controlling to keep off defects on magnetic disks Hisaharu Takeuchi, Masahiro Nakayama, Yoshiro Shiroyanagi, Akira Kurano 1989-02-14
4792917 Control apparatus for simultaneous data transfer Hisaharu Takeuchi, Yoshiro Shiroyanagi 1988-12-20