Preventing or cancelling fields leaving the enclosure

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CPC
H01J2229/0015

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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

H01J2229/0015Preventing or cancelling fields leaving the enclosure

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Cathode ray tube device that reduces magnetic field leakage
- Patent number 6,630,791
- Issue date Oct 7, 2003
- Matsushita Electric Industrial Co., Ltd.
- Yukio Uchida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube and electron gun having reduced radiation
- Patent number 6,538,370
- Issue date Mar 25, 2003
- Sony Corporation
- Yasunobu Amano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
CRT display device to suppress electromagnetic radiation therefrom
- Patent number 6,498,435
- Issue date Dec 24, 2002
- Furuno Electric Co., Ltd.
- Tomohiko Suzuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube device that reduces magnetic field leakage
- Patent number 6,404,133
- Issue date Jun 11, 2002
- Matsushita Electric Industrial Co., Ltd.
- Yukio Uchida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and a device for reducing an electric field produced by a ca...
- Patent number 6,351,084
- Issue date Feb 26, 2002
- Nokia Display Products Oy
- Lasse Kiviranta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cathode ray tube and method of manufacturing conductive antireflect...
- Patent number 6,323,592
- Issue date Nov 27, 2001
- Kabushiki Kaisha Toshiba
- Yoshinori Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Display unit with reduced leakage magnetic field
- Patent number 6,147,454
- Issue date Nov 14, 2000
- Matsushita Electronics Corporation
- Yukio Uchida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus of shielding VLF electric field emitted from front face o...
- Patent number 6,144,416
- Issue date Nov 7, 2000
- LG Electronics Inc.
- Hee Young Song
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Monitor X-ray protection device
- Patent number 6,075,687
- Issue date Jun 13, 2000
- Mag Technology Co., Ltd.
- Kuei-Pi Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cathode ray tube apparatus
- Patent number 6,054,804
- Issue date Apr 25, 2000
- Matsushita Electronics Corporation
- Yoshifumi Oshima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for suppressing electric field radiation from a cathode r...
- Patent number 6,049,173
- Issue date Apr 11, 2000
- Nanao Corporation
- Takashi Murata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for reducing electromagnetic interference radi...
- Patent number 6,020,939
- Issue date Feb 1, 2000
- Sun Microsystems, Inc.
- Abraham E. Rindal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electric field noise eliminating circuit in a video display appliance
- Patent number 5,986,406
- Issue date Nov 16, 1999
- LG Electronics Inc.
- Dong Sun Hwang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for suppressing electric field radiation from a cathode r...
- Patent number 5,965,987
- Issue date Oct 12, 1999
- Nanao Corporation
- Takashi Murata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cancellation coil arrangement for reducing stray magnetic field emi...
- Patent number 5,959,392
- Issue date Sep 28, 1999
- International Business Machines Corporation
- John Beeteson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Stray emission reduction circuit
- Patent number 5,914,574
- Issue date Jun 22, 1999
- Thomson multimedia S.A.
- Hsu Flame
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Leakage flux canceling device
- Patent number 5,874,879
- Issue date Feb 23, 1999
- Sony Corporation
- Yoshio Taka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Device for shielding electric field emitted backward from video dis...
- Patent number 5,841,234
- Issue date Nov 24, 1998
- LG Electronics, Inc.
- Seok Hwa Jeong
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
CRT with a transparent film and a compensating electrode
- Patent number 5,831,390
- Issue date Nov 3, 1998
- Kabushiki Kaisha Toshiba
- Toshiaki Inoue
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Device for removing electric field of display
- Patent number 5,818,171
- Issue date Oct 6, 1998
- SamSung Electronics Co., Ltd.
- Young-Min Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Leakage field decreasing device for CRT display
- Patent number 5,789,872
- Issue date Aug 4, 1998
- Matsushita Electric Industrial Co., Ltd.
- Tetsuya Kohga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electromagnetic field shielding circuit for a display
- Patent number 5,786,668
- Issue date Jul 28, 1998
- Samsung Electronics Co., Ltd.
- Chai-Gwang Lim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compensation of electromagnetic distortion caused by metal mass
- Patent number 5,760,335
- Issue date Jun 2, 1998
- Elbit Systems Ltd.
- Pinhas Gilboa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Display monitor
- Patent number 5,744,918
- Issue date Apr 28, 1998
- Hitachi Media Electronics Co., Ltd.
- Yoshihiko Sugawara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube display with deflection yoke and radiation shield
- Patent number 5,734,234
- Issue date Mar 31, 1998
- International Business Machines Corporation
- Kenneth George Smith
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube display with cancellation of electric field emissions
- Patent number 5,726,538
- Issue date Mar 10, 1998
- International Business Machines Corporation
- Frederick S. Jackson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube apparatus and yoke
- Patent number 5,701,061
- Issue date Dec 23, 1997
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube display unit in which unwanted radiant electric fi...
- Patent number 5,689,157
- Issue date Nov 18, 1997
- Hitachi, Ltd.
- Hiroshi Jitsukata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube display device and method of eliminating the...
- Patent number 5,642,175
- Issue date Jun 24, 1997
- Mitsubishi Denki Kabushiki Kaisha
- Tatsuhiro Hirakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method of reducing varying electrical fields in video...
- Patent number 5,614,789
- Issue date Mar 25, 1997
- Robert Kristiansson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Projection display apparatus and magnetic shield device
- Publication number 20050242754
- Publication date Nov 3, 2005
- Kabushiki Kaisha Toshiba
- Kenichi Ooshima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Cathode ray tube device that reduces magnetic field leakage
- Publication number 20020109461
- Publication date Aug 15, 2002
- Yukio Uchida
- H01 - BASIC ELECTRIC ELEMENTS

Preventing or cancelling fields leaving the enclosure

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Cathode ray tube device that reduces magnetic field leakage

Cathode-ray tube and electron gun having reduced radiation

CRT display device to suppress electromagnetic radiation therefrom

Cathode ray tube device that reduces magnetic field leakage

Method and a device for reducing an electric field produced by a ca...

Cathode ray tube and method of manufacturing conductive antireflect...

Display unit with reduced leakage magnetic field

Apparatus of shielding VLF electric field emitted from front face o...

Monitor X-ray protection device

Cathode ray tube apparatus

Apparatus for suppressing electric field radiation from a cathode r...

Method and apparatus for reducing electromagnetic interference radi...

Electric field noise eliminating circuit in a video display appliance

Apparatus for suppressing electric field radiation from a cathode r...

Cancellation coil arrangement for reducing stray magnetic field emi...

Stray emission reduction circuit

Leakage flux canceling device

Device for shielding electric field emitted backward from video dis...

CRT with a transparent film and a compensating electrode

Device for removing electric field of display

Leakage field decreasing device for CRT display

Electromagnetic field shielding circuit for a display

Compensation of electromagnetic distortion caused by metal mass

Display monitor

Cathode ray tube display with deflection yoke and radiation shield

Cathode ray tube display with cancellation of electric field emissions

Cathode-ray tube apparatus and yoke

Cathode-ray tube display unit in which unwanted radiant electric fi...

Color cathode ray tube display device and method of eliminating the...

Apparatus and method of reducing varying electrical fields in video...

Patents Applicationslast 30 patents

Projection display apparatus and magnetic shield device

Cathode ray tube device that reduces magnetic field leakage