Masashi Norimoto

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing single-side mirror surface wafer
- Patent number 7,338,904
- Issue date Mar 4, 2008
- Sumco Corporation
- Sakae Koyata
- B24 - GRINDING POLISHING
Information Patent Grant
Method for producing a silicon wafer
- Patent number 7,226,864
- Issue date Jun 5, 2007
- Sumitomo Mitsubishi Silicon Corporation
- Sakae Koyata
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Method for manufacturing single-side mirror surface wafer
- Publication number 20070158308
- Publication date Jul 12, 2007
- SUMCO CORPORATION
- Sakae Koyata
- B24 - GRINDING POLISHING
Information Patent Application
Method for etching a silicon wafer and method for performing differ...
- Publication number 20060194441
- Publication date Aug 31, 2006
- Sakae Koyata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method for producing a silicon wafer
- Publication number 20050112893
- Publication date May 26, 2005
- Sakae Koyata
- C30 - CRYSTAL GROWTH