Tetsuro Iwashita

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of polishing a silicon wafer
- Patent number 8,877,643
- Issue date Nov 4, 2014
- Sumco Corporation
- Shuhei Matsuda
- B24 - GRINDING POLISHING
Information Patent Grant
Silicon epitaxial wafer and method for production thereof
- Patent number 8,815,710
- Issue date Aug 26, 2014
- Sumco Corporation
- Masayuki Ishibashi
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method of manufacturing semiconductor substrate and method of evalu...
- Patent number 7,479,204
- Issue date Jan 20, 2009
- Sumco Corporation
- Morimasa Miyazaki
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF POLISHING SILICON WAFER AS WELL AS SILICON WAFER
- Publication number 20120080775
- Publication date Apr 5, 2012
- Shuhei Matsuda
- B24 - GRINDING POLISHING
Information Patent Application
SILICON EPITAXIAL WAFER AND METHOD FOR PRODUCTION THEREOF
- Publication number 20110031592
- Publication date Feb 10, 2011
- SUMCO CORPORATION
- Masayuki Ishibashi
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD OF MANUFACTURING SEMICONDUCTOR SUBSTRATE AND METHOD OF EVALU...
- Publication number 20070193686
- Publication date Aug 23, 2007
- SUMCO CORPORATION
- Morimasa MIYAZAKI
- G01 - MEASURING TESTING