YK

Yasuyoshi Kuroda

SC Shin-Etsu Chemical Co.: 25 patents #178 of 2,176Top 9%
SC Shin-Etsu Handotai Co.: 9 patents #84 of 679Top 15%
FM Fujikoshi Machinery: 4 patents #19 of 85Top 25%
Overall (All Time): #96,977 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
6234879 Method and apparatus for wafer chamfer polishing Fumihiko Hasegawa, Tatsuo Ohtani 2001-05-22
5928066 Apparatus for polishing peripheral portion of wafer Fumihiko Hasegawa, Toshihiro Tsuchiya, Koichiro Ichikawa, Yasuo Inada 1999-07-27
5882539 Wafer processing method and equipment therefor Fumihiko Hasegawa, Masayuki Yamada 1999-03-16
5766065 Apparatus for polishing peripheral portion of wafer Fumihiko Hasegawa, Koichiro Ichikawa, Yasuo Inada 1998-06-16
5733181 Apparatus for polishing the notch of a wafer Fumihiko Hasegawa, Tatsuo Ohtani, Koichiro Ichikawa, Yasuo Inada 1998-03-31
5727990 Method for mirror-polishing chamfered portion of wafer and mirror-polishing apparatus Fumihiko Hasegawa, Tatsuo Ohtani, Koichiro Ichikawa, Yasuo Inada 1998-03-17
5547415 Method and apparatus for wafer chamfer polishing Fumihiko Hasegawa, Tatsuo Ohtani 1996-08-20
5538463 Apparatus for bevelling wafer-edge Fumihiko Hasegawa, Tatsuo Ohtani 1996-07-23
5476413 Apparatus for polishing the periphery portion of a wafer Fumihiko Hasegawa, Tatsuo Ohtani, Koichiro Ichikawa, Yasuo Inada 1995-12-19
5404678 Wafer chamfer polishing apparatus with rotary circular dividing table Fumihiko Hasegawa, Tatsuo Ohtani 1995-04-11