Image projection devices

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CPC
H01J2229/8907

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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J2229/00Details of cathode ray tubes or electron beam tubes

Current Industry

H01J2229/8907Image projection devices

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Projection type cathode ray tube device
- Patent number 7,015,634
- Issue date Mar 21, 2006
- Hitachi Displays, Ltd.
- Sakae Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projection type cathode ray tube having improved focus characteristics
- Patent number 7,005,801
- Issue date Feb 28, 2006
- Hitachi Display, Ltd.
- Go Uchida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
CRT assembly of projection television
- Patent number 6,972,808
- Issue date Dec 6, 2005
- Samsung Electronics Co., Ltd.
- Chang-wan Hong
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Funnel-and-neck sealing body for projection tube
- Patent number 6,717,347
- Issue date Apr 6, 2004
- Nippon Electric Glass Co., Ltd.
- Mamoru Kubosaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube coupler with grounding ribbs
- Patent number 6,696,776
- Issue date Feb 24, 2004
- Sony Corporation
- John J. Florek
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
CRT assembly of projection TV system
- Patent number 6,456,341
- Issue date Sep 24, 2002
- Samsung Electronics Co., Ltd.
- Sung-su Jung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Liquid cooling type cathode-ray tube for a projector
- Patent number 6,130,497
- Issue date Oct 10, 2000
- Sony Corporation
- Hiroyuki Takezawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Liquid cooling type projection cathode ray tube
- Patent number 5,521,459
- Issue date May 28, 1996
- Samsung Electron Devices Co., Ltd.
- Sang-muk Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projection cathode ray tube
- Patent number 5,225,730
- Issue date Jul 6, 1993
- Mitsubishi Denki Kabushiki Kaisha
- Hiroshi Okuda
- G02 - OPTICS
Information Patent Grant
Method of vapor depositing an interference filter layer on the insi...
- Patent number 5,209,690
- Issue date May 11, 1993
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projection cathode ray tube
- Patent number 5,126,626
- Issue date Jun 30, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Yasuo Iwasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projection cathode ray tube
- Patent number 5,107,173
- Issue date Apr 21, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Yasuo Iwasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projection cathode ray tube
- Patent number 5,089,743
- Issue date Feb 18, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Hiroshi Okuda
- G02 - OPTICS
Information Patent Grant
Video projector
- Patent number 4,651,217
- Issue date Mar 17, 1987
- Hitachi, Ltd.
- Eiichi Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Halo-reducing faceplate arrangement
- Patent number 4,633,131
- Issue date Dec 30, 1986
- North American Philips Corporation
- Jacob Khurgin
- G02 - OPTICS
Information Patent Grant
Cathode ray tube device with improved color filtering system
- Patent number 4,617,490
- Issue date Oct 14, 1986
- North American Philips Corporation
- Brian J. Fitzpatrick
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for displaying images wtih reduced coarseness
- Patent number 4,587,553
- Issue date May 6, 1986
- Sony Corporation
- Toshiro Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image display system
- Patent number 4,391,495
- Issue date Jul 5, 1983
- The Austin Company
- Anthony R. Mazurkewitz
- G02 - OPTICS
Information Patent Grant
Integral lens cathode ray tube system
- Patent number 4,150,320
- Issue date Apr 17, 1979
- GTE Sylvania Incorporated
- Robert B. Mitchell
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for producing depth effect in two dimensional pictures
- Patent number 4,000,367
- Issue date Dec 28, 1976
- Lester M. Field
- G02 - OPTICS
Information Patent Grant
2459637
- Patent number 2,459,637
- Issue date Jan 18, 1949
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2172775
- Patent number 2,172,775
- Issue date Sep 12, 1939
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Optical coupler for projection display
- Publication number 20050134164
- Publication date Jun 23, 2005
- 3M Innovative Properties Company
- Roy A. Auerbach
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Projection type cathode ray tube having improved focus characteristics
- Publication number 20050077832
- Publication date Apr 14, 2005
- Go Uchida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FUNNEL-AND-NECK SEALING BODY FOR PROJECTION TUBE
- Publication number 20040041512
- Publication date Mar 4, 2004
- Mamoru Kubosaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Projection type cathode ray tube device
- Publication number 20040004428
- Publication date Jan 8, 2004
- Sakae Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Cathode ray tube coupler with grounding ribbs
- Publication number 20020140332
- Publication date Oct 3, 2002
- John J. Florek
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CRT assembly of projection television
- Publication number 20020054246
- Publication date May 9, 2002
- Chang-wan Hong
- H01 - BASIC ELECTRIC ELEMENTS

Image projection devices

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Projection type cathode ray tube device

Projection type cathode ray tube having improved focus characteristics

CRT assembly of projection television

Funnel-and-neck sealing body for projection tube

Cathode ray tube coupler with grounding ribbs

CRT assembly of projection TV system

Liquid cooling type cathode-ray tube for a projector

Liquid cooling type projection cathode ray tube

Projection cathode ray tube

Method of vapor depositing an interference filter layer on the insi...

Projection cathode ray tube

Projection cathode ray tube

Projection cathode ray tube

Video projector

Halo-reducing faceplate arrangement

Cathode ray tube device with improved color filtering system

Apparatus for displaying images wtih reduced coarseness

Image display system

Integral lens cathode ray tube system

Apparatus for producing depth effect in two dimensional pictures

2459637

2172775

Patents Applicationslast 30 patents

Optical coupler for projection display

Projection type cathode ray tube having improved focus characteristics

FUNNEL-AND-NECK SEALING BODY FOR PROJECTION TUBE

Projection type cathode ray tube device

Cathode ray tube coupler with grounding ribbs

CRT assembly of projection television