Masayoshi Ishikawa

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Kumagaya, JP

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Patents Grantslast 30 patents

Information Patent Grant
CRT with implosion-proof band and method for manufacturing the same
- Patent number 6,590,331
- Issue date Jul 8, 2003
- Kabushiki Kaisha Toshiba
- Koichi Soneda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube with shadow mask
- Patent number 6,320,305
- Issue date Nov 20, 2001
- Kabushiki Kaisha Toshiba
- Masayoshi Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS