Ken-Ichi Yamamoto

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Higashimurayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Plasma display device
- Patent number 6,690,342
- Issue date Feb 10, 2004
- Hitachi, Ltd.
- Ken-ichi Yamamoto
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Plasma display device
- Publication number 20020060651
- Publication date May 23, 2002
- Ken-Ichi Yamamoto
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS