SS

Shinji Sekiya

DI Disco: 7 patents #90 of 708Top 15%
DS Disco Abrasive Systems: 3 patents #1 of 13Top 8%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Overall (All Time): #474,514 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5377174 Disk changer having a disk tray moved by a pair of slidable, parallel racks Yoshiaki Nakagawa, Takashi Suzuki, Yasuyoshi Kagohashi, Seiji Nakama, Hajime Daigaku +1 more 1994-12-27
4839996 Method and apparatus for machining hard, brittle and difficultly-machinable workpieces 1989-06-20
4705016 Precision device for reducing errors attributed to temperature change reduced 1987-11-10
4625463 Wafer attracting and fixing device 1986-12-02
4617766 Grinding wheel for flat plates Takatoshi Ono 1986-10-21
4567694 Grinding wheel for grinding the flat surface of a hard and brittle material Takatoshi Ono 1986-02-04
4565034 Grinding and/or cutting endless belt 1986-01-21
4545154 Grinding wheel for flat plates Takatoshi Ono 1985-10-08
4521995 Wafer attracting and fixing device 1985-06-11
4445300 Method for grinding flat plates Takatoshi Ono 1984-05-01
4411107 Grinding wheel for flat plates Takatoshi Ono 1983-10-25