Nobuyuki Yoshino

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Impregnated cathode and method of manufacturing same, electron gun...
- Patent number 6,425,793
- Issue date Jul 30, 2002
- Sony Corporation
- Yoji Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Impregnated cathode having varying surface porosity
- Patent number 6,252,341
- Issue date Jun 26, 2001
- Sony Corporation
- Yoji Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS