Katsuyuki Yamashita

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Indirectly heated cathode with a thermal absorption layer on the sl...
- Patent number 6,300,711
- Issue date Oct 9, 2001
- Matsushita Electronics Corporation
- Yoji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode for electron tube
- Patent number 5,959,395
- Issue date Sep 28, 1999
- Matsushita Electronics Corporation
- Hiroshi Sakurai
- H01 - BASIC ELECTRIC ELEMENTS