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 26–28 of 28 patents

Patent #TitleCo-InventorsDate
4814906 Magnetic head slider Shoji Suzuki, Toshinori Kazama, Hiroshi Daitou, Yoshinori Takeuchi 1989-03-21
4723186 Magnetic head support arm Hiroyasu Nakajima, Hiroshi Daito, Yokuo Saitoh 1988-02-02
4286919 Apparatus for pumping operation of a hydraulic machine having Francis type runner 1981-09-01