Tutomu Utsumi

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of securing shadow mask and frame in the manufacture of a ca...
- Patent number 6,857,927
- Issue date Feb 22, 2005
- Matsushita Electric Industrial Co., Ltd.
- Kiyohito Miwa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Production method of cathode ray tube
- Publication number 20030171061
- Publication date Sep 11, 2003
- Kiyohito Miwa
- H01 - BASIC ELECTRIC ELEMENTS