producing fields exhibiting symmetry of revolution

Industry

CPC
H01J29/622

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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00

Current Industry

H01J29/622producing fields exhibiting symmetry of revolution

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing an electron gun for a cathode ray tube
- Patent number 5,895,303
- Issue date Apr 20, 1999
- Sony Corporation
- Shingo Kimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun for a cathode ray tube
- Patent number 5,773,925
- Issue date Jun 30, 1998
- Sony Corporation
- Shingo Kimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Rapidly scanning cathode ray tube/scanning laser
- Patent number 5,521,464
- Issue date May 28, 1996
- U.S. Philips Corporation
- Gerardus A. H. M. Vrijssen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube apparatus
- Patent number 5,449,983
- Issue date Sep 12, 1995
- Kabushiki Kaisha Toshiba
- Shigeru Sugawara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Display tube comprising an electron gun with a resistive focusing lens
- Patent number 5,256,934
- Issue date Oct 26, 1993
- U.S. Philips Corporation
- Jeroen Van Engelshoven
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube
- Patent number 5,254,903
- Issue date Oct 19, 1993
- Samsung Electron Devices, Co., Ltd.
- Cheol-sik Jo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
X-ray image intensifier with electron optics coating
- Patent number 4,996,414
- Issue date Feb 26, 1991
- Siemens Aktiengesellschaft
- Richard Frank
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Picture display device
- Patent number 4,988,928
- Issue date Jan 29, 1991
- U.S. Philips Corporation
- Gerardus A. H. M. Vrijssen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Picture display device
- Patent number 4,988,929
- Issue date Jan 29, 1991
- U.S. Philips Corporation
- Tjerk G. Spanjer
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube including a helical focusing lens
- Patent number 4,961,023
- Issue date Oct 2, 1990
- U.S. Philips Corporation
- Gerardus A. H. M. Vrijssen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron beam focusing lens
- Patent number 4,560,899
- Issue date Dec 24, 1985
- Hitachi, Ltd.
- Shigehiko Takayama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
3683194
- Patent number 3,683,194
- Issue date Aug 8, 1972
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2539370
- Patent number 2,539,370
- Issue date Jan 23, 1951
- H01 - BASIC ELECTRIC ELEMENTS

producing fields exhibiting symmetry of revolution

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method of manufacturing an electron gun for a cathode ray tube

Electron gun for a cathode ray tube

Rapidly scanning cathode ray tube/scanning laser

Color cathode ray tube apparatus

Display tube comprising an electron gun with a resistive focusing lens

Cathode ray tube

X-ray image intensifier with electron optics coating

Picture display device

Picture display device

Cathode ray tube including a helical focusing lens

Electron beam focusing lens

3683194

2539370

Patents Applicationslast 30 patents