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CPC
H01J2229/0038

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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

H01J2229/0038Active means

Industries

Patents Grantslast 30 patents

Information Patent Grant
Cathode-ray tube, cathode-ray tube apparatus, image display apparat...
- Patent number 6,963,181
- Issue date Nov 8, 2005
- Matsushita Electric Industrial Co., Ltd.
- Shigeo Nakatera
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for automatically correcting for earth magnetic field eff...
- Patent number 6,501,222
- Issue date Dec 31, 2002
- LG Electronics
- Kyung Sic Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Purity adjustment device for video display appliance
- Patent number 6,246,448
- Issue date Jun 12, 2001
- LG Electronics, Inc.
- Kwang Ho Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic magnetic field compensator for a CRT
- Patent number 6,194,848
- Issue date Feb 27, 2001
- Samsung Electronics Co., Ltd.
- Sang-Hae Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Geomagnetic direction sensor
- Patent number 5,982,176
- Issue date Nov 9, 1999
- Sony Corporation
- Yoshihisa Kawamura
- G01 - MEASURING TESTING
Information Patent Grant
CRT magnetic compensating circuit with parallel amorphous wires in...
- Patent number 5,751,112
- Issue date May 12, 1998
- Sumitomo Metal Mining Co., Ltd.
- Akio Monma
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for mitigating the effects of ambient magnetic fields on...
- Patent number 5,742,128
- Issue date Apr 21, 1998
- Orwin Associates, Inc.
- Winfield Scott Bearce
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cathode ray tube
- Patent number 5,614,791
- Issue date Mar 25, 1997
- Sony Corporation
- Hisao Kume
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color monitor magnetic shield
- Patent number 5,604,403
- Issue date Feb 18, 1997
- Aydin Corporation
- Moises Levy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Beam landing correction apparatus for a cathode ray tube
- Patent number 5,583,401
- Issue date Dec 10, 1996
- Matsushita Electric Industrial Co., Ltd.
- Ikunori Inoue
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for compensating for image rotation in a CRT display and...
- Patent number 5,512,803
- Issue date Apr 30, 1996
- Sony Corporation
- Kazuhiko Endo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for correcting the effect of terrestrial magnetism on electr...
- Patent number 5,510,677
- Issue date Apr 23, 1996
- Sony Corporation
- Masaru Nagashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color CRT display apparatus
- Patent number 5,488,270
- Issue date Jan 30, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Hidenori Takita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bucking field system and method for mitigating the effects of an ex...
- Patent number 5,473,221
- Issue date Dec 5, 1995
- Hughes Aircraft Company
- Ton M. Do
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus employing two independent means for nulling an...
- Patent number 5,117,155
- Issue date May 26, 1992
- Interstate Electronics Corp.
- Frederick T. Buhler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for dynamic magnetic field neutralization
- Patent number 5,073,744
- Issue date Dec 17, 1991
- Interstate Electronics Corp.
- Frederick T. Buhler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for dynamic magnetic field control
- Patent number 5,039,911
- Issue date Aug 13, 1991
- Interstate Electronics Corp.
- Frederick T. Buhler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnetic cancelling apparatus for color cathode-ray tube
- Patent number 5,017,832
- Issue date May 21, 1991
- Mitsubishi Denki Kaisha Kaisha
- Hidenori Takita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Closed loop bucking field system
- Patent number 4,996,461
- Issue date Feb 26, 1991
- Hughes Aircraft Company
- Robert Bentley
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for dynamic magnetic field neutralization
- Patent number 4,963,789
- Issue date Oct 16, 1990
- Conrac SCD, Inc.
- Frederick T. Buhler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
X-ray image intensifier tube with circuit to compensate for the eff...
- Patent number 4,945,223
- Issue date Jul 31, 1990
- General Electric CGR SA
- Jacques Beauzamy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
External magnetic field compensator for a CRT
- Patent number 4,380,716
- Issue date Apr 19, 1983
- Hazeltine Corporation
- Arthur L. Romeo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3757154
- Patent number 3,757,154
- Issue date Sep 4, 1973
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
High Deflection Angle CRT Display
- Publication number 20090262237
- Publication date Oct 22, 2009
- Richard Hugh Miller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Cathode-ray tube, cathode-ray tube apparatus, image display apparat...
- Publication number 20040004427
- Publication date Jan 8, 2004
- Shigeo Nakatera
- H01 - BASIC ELECTRIC ELEMENTS

Active means

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Cathode-ray tube, cathode-ray tube apparatus, image display apparat...

Apparatus for automatically correcting for earth magnetic field eff...

Purity adjustment device for video display appliance

Automatic magnetic field compensator for a CRT

Geomagnetic direction sensor

CRT magnetic compensating circuit with parallel amorphous wires in...

Apparatus for mitigating the effects of ambient magnetic fields on...

Cathode ray tube

Color monitor magnetic shield

Beam landing correction apparatus for a cathode ray tube

Apparatus for compensating for image rotation in a CRT display and...

Method for correcting the effect of terrestrial magnetism on electr...

Color CRT display apparatus

Bucking field system and method for mitigating the effects of an ex...

Method and apparatus employing two independent means for nulling an...

Method and apparatus for dynamic magnetic field neutralization

Apparatus for dynamic magnetic field control

Magnetic cancelling apparatus for color cathode-ray tube

Closed loop bucking field system

Method and apparatus for dynamic magnetic field neutralization

X-ray image intensifier tube with circuit to compensate for the eff...

External magnetic field compensator for a CRT

3757154

Patents Applicationslast 30 patents

High Deflection Angle CRT Display

Cathode-ray tube, cathode-ray tube apparatus, image display apparat...