Yoshimi Kumei

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cathode ray tube having magnetic shield with a bent portion
- Patent number 6,979,943
- Issue date Dec 27, 2005
- Matsushita Electric Industrial Co., Ltd.
- Naoki Yamauchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode-ray tube
- Patent number 6,825,601
- Issue date Nov 30, 2004
- Matsushita Electric Industrial Co., Ltd.
- Naoki Yamauchi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Color cathode-ray tube
- Publication number 20030178929
- Publication date Sep 25, 2003
- Naoki Yamauchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Image receiving tube device
- Publication number 20030155853
- Publication date Aug 21, 2003
- Naoki Yamauchi
- H01 - BASIC ELECTRIC ELEMENTS