Seok-bong Son

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Suwon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Directly heated cathode structure
- Patent number 5,852,342
- Issue date Dec 22, 1998
- Samsung Display Devices Co., Ltd.
- Chang-seob Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun for cathode ray tubes
- Patent number 5,721,469
- Issue date Feb 24, 1998
- Samsung Display Devices Co., Ltd.
- Sang-Kyun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Directly heated cathode structure
- Patent number 5,703,429
- Issue date Dec 30, 1997
- Samsung Display Devices Co., Ltd.
- Chang-seob Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Directly heated cathode structure
- Patent number 5,701,052
- Issue date Dec 23, 1997
- Samsung Display Devices Co., Ltd.
- Chang-seob Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Directly heated cathode for cathode ray tube
- Patent number 5,668,434
- Issue date Sep 16, 1997
- Samsung Display Devices Co., Ltd.
- Chang-seob Kim
- H01 - BASIC ELECTRIC ELEMENTS