Astigmatism

Industry

CPC
H01J2229/5635

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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

H01J2229/5635Astigmatism

Industries

Patents Grantslast 30 patents

Information Patent Grant
Compact modular cathode
- Patent number 10,319,554
- Issue date Jun 11, 2019
- Massachusetts Institute of Technology
- Akintunde I. Akinwande
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color picture tube apparatus
- Patent number 6,965,192
- Issue date Nov 15, 2005
- Matsushita Electric Industrial Co., Ltd.
- Masahiko Sukeno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube with low dynamic correction voltage
- Patent number 6,633,142
- Issue date Oct 14, 2003
- Hitachi, Ltd.
- Shoji Shirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube apparatus
- Patent number 6,614,156
- Issue date Sep 2, 2003
- Kabushiki Kaisha Toshiba
- Hiroyuki Oda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube apparatus with electron beam forming structure
- Patent number 6,608,435
- Issue date Aug 19, 2003
- Kabushiki Kaisha Toshiba
- Junichi Kimiya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
CRT beam landing spot size correction apparatus and method
- Patent number 6,525,459
- Issue date Feb 25, 2003
- Sony Corporation
- Toshiyuki Ogura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube apparatus including an electron gun assembly capab...
- Patent number 6,424,084
- Issue date Jul 23, 2002
- Kabushiki Kaisha Toshiba
- Junichi Kimiya
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Color cathode ray tube having a low dynamic focus
- Patent number 6,353,282
- Issue date Mar 5, 2002
- Hitachi, Ltd.
- Tutomu Tojyou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube apparatus having auxiliary grid electrodes
- Patent number 6,339,284
- Issue date Jan 15, 2002
- Kabushiki Kaisha Toshiba
- Tsutomu Takekawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having a low dynamic focus voltage
- Patent number 6,331,752
- Issue date Dec 18, 2001
- Hitachi, Ltd.
- Tutomu Tojyou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron beam deflection system for cathode ray tubes
- Patent number 6,300,730
- Issue date Oct 9, 2001
- Thomson Tubes & Displays, S.A.
- Jean-Marc Perreaut
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube with low dynamic correction voltage
- Patent number 6,255,788
- Issue date Jul 3, 2001
- Hitachi, Ltd.
- Shoji Shirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube with astigmatism correction system
- Patent number 6,194,824
- Issue date Feb 27, 2001
- Matsushita Electronics Corporation
- Yasuyuki Ueda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color CRT electron gun with asymmetric auxiliary beam passing aperture
- Patent number 6,153,970
- Issue date Nov 28, 2000
- Chunghwa Picture Tubes, Ltd.
- Hsing-Yao Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube with low dynamic correction voltage
- Patent number 6,031,346
- Issue date Feb 29, 2000
- Hitachi, Ltd.
- Shoji Shirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having a low dynamic focus voltage
- Patent number 6,025,674
- Issue date Feb 15, 2000
- Hitachi Ltd.
- Tutomu Tojyou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube with low dynamic correction voltage
- Patent number 5,828,191
- Issue date Oct 27, 1998
- Hitachi, Ltd.
- Shoji Shirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having a low dynamic focus voltage
- Patent number 5,739,631
- Issue date Apr 14, 1998
- Hitachi, Ltd.
- Tutomu Tojyou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Main lens structure for a color cathode ray tube
- Patent number 5,625,252
- Issue date Apr 29, 1997
- Hitachi, Ltd.
- Mamoru Tsuzurahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube with low dynamic correction voltage
- Patent number 5,610,481
- Issue date Mar 11, 1997
- Hitachi, Ltd.
- Shoji Shirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having a low dynamic focus voltage
- Patent number 5,608,284
- Issue date Mar 4, 1997
- Hitachi, Ltd.
- Tutomu Tojyou
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
COMPACT MODULAR CATHODE
- Publication number 20170365438
- Publication date Dec 21, 2017
- Massachusetts Institute of Technology
- Akintunde I. Akinwande
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Focusing lens structure for a cathode ray tube electron gun
- Publication number 20060250068
- Publication date Nov 9, 2006
- Michel Lefort
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Color picture tube apparatus
- Publication number 20030178930
- Publication date Sep 25, 2003
- Masahiko Sukeno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Single beam tracking tube
- Publication number 20020074926
- Publication date Jun 20, 2002
- Marcellinus Petrus Carolus Michael Krijn
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Cathode-ray tube apparatus
- Publication number 20020024284
- Publication date Feb 28, 2002
- Hiroyuki Oda
- H01 - BASIC ELECTRIC ELEMENTS

Astigmatism

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Compact modular cathode

Color picture tube apparatus

Cathode ray tube with low dynamic correction voltage

Cathode-ray tube apparatus

Cathode ray tube apparatus with electron beam forming structure

CRT beam landing spot size correction apparatus and method

Cathode ray tube apparatus including an electron gun assembly capab...

Color cathode ray tube having a low dynamic focus

Color cathode ray tube apparatus having auxiliary grid electrodes

Color cathode ray tube having a low dynamic focus voltage

Electron beam deflection system for cathode ray tubes

Cathode ray tube with low dynamic correction voltage

Color cathode ray tube with astigmatism correction system

Color CRT electron gun with asymmetric auxiliary beam passing aperture

Cathode ray tube with low dynamic correction voltage

Color cathode ray tube having a low dynamic focus voltage

Cathode ray tube with low dynamic correction voltage

Color cathode ray tube having a low dynamic focus voltage

Main lens structure for a color cathode ray tube

Cathode ray tube with low dynamic correction voltage

Color cathode ray tube having a low dynamic focus voltage

Patents Applicationslast 30 patents

COMPACT MODULAR CATHODE

Focusing lens structure for a cathode ray tube electron gun

Color picture tube apparatus

Single beam tracking tube

Cathode-ray tube apparatus