KH

Kazuto Hirokawa

EB Ebara: 40 patents #36 of 1,611Top 3%
SH Shimadzu: 2 patents #805 of 2,007Top 45%
Overall (All Time): #79,350 of 4,157,543Top 2%
40
Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
6413155 Polishing apparatus Hisanori Matsuo, Hirokuni Hiyama, Yutaka Wada 2002-07-02
6413149 Abrading plate and polishing method using the same Yutaka Wada, Hirokuni Hiyama, Hisanori Matsuo 2002-07-02
6402588 Polishing apparatus Hisanori Matsuo, Hirokuni Hiyama, Yutaka Wada 2002-06-11
6398626 Polishing apparatus Hisanori Matsuo, Hirokuni Hiyama, Yutaka Wada, Tetsuji Togawa 2002-06-04
6390901 Polishing apparatus Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo, Tetsuji Togawa, Satoshi Wakabayashi 2002-05-21
6336850 Slurry dispenser and polishing apparatus Yutaka Wada, Hirokuni Hiyama, Hisanori Matsuo 2002-01-08
6261162 Polishing apparatus and method of manufacturing grinding plate Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo 2001-07-17
6220945 Polishing apparatus Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo 2001-04-24
6217411 Polishing apparatus Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo 2001-04-17
6196904 Polishing apparatus Hisanori Matsuo, Hirokuni Hiyama, Yutaka Wada 2001-03-06
6190243 Polishing apparatus Yutaka Wada, Hirokuni Hiyama, Hisanori Matsuo 2001-02-20
5357162 Spindle motor using dynamic pressure bearings Shunichi Aiyoshizawa, Kazuyuki Kasahara, Tohru Maruyama 1994-10-18
5142173 Bearing structure Daisuke Konno, Sachihiko Miwa, Shunichi Aiyoshizawa, Kazuyuki Kasahara, Yoshio Sato +1 more 1992-08-25
5089732 Spindle motor Daisuke Konno, Sachihiko Miwa, Shunichi Aiyoshizawa, Kazuyuki Kasahara, Yoshio Sato 1992-02-18
4998033 Gas dynamic bearing for spindle motor Yasushi Hisabe, Noriyuki Osada, Toshihiro Ohtani, Masahiko Kishi, Yoshio Sato +6 more 1991-03-05