Mika Yamagishi

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Takatsuki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cathode structure including barrier for preventing metal bridging f...
- Patent number 7,414,356
- Issue date Aug 19, 2008
- Matsushita Electric Industrial Co., Ltd.
- Yoji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-yield cathode body, cathode sleeve structure, and cathode-ray...
- Patent number 6,992,427
- Issue date Jan 31, 2006
- Matsushita Electric Industrial Co., Ltd.
- Mika Yamagishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Long-life electron tube device, electron tube cathode, and manufact...
- Patent number 6,882,093
- Issue date Apr 19, 2005
- Matsushita Electric Industrial Co., Ltd.
- Mika Yamagishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun having short length and cathode-ray tube apparatus usi...
- Patent number 6,828,717
- Issue date Dec 7, 2004
- Matsushita Electric Industrial Co., Ltd.
- Yoji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode structure for cathode ray tube
- Patent number 6,492,765
- Issue date Dec 10, 2002
- Matsushita Electric Industrial Co., Ltd.
- Mika Yamagishi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Cathode structure, electron gun, and cathode ray tube
- Publication number 20040207307
- Publication date Oct 21, 2004
- Yoji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
High-yield cathode body, cathode sleeve structure, and cathode-ray...
- Publication number 20030173886
- Publication date Sep 18, 2003
- Mika Yamagishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electron gun having short length and cathode-ray tube apparatus usi...
- Publication number 20030080668
- Publication date May 1, 2003
- Yoji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Long-life electron tube device, electron tube cathode, and manufact...
- Publication number 20030025430
- Publication date Feb 6, 2003
- Mika Yamagishi
- H01 - BASIC ELECTRIC ELEMENTS