Assignee

VIDEOCOLOR

FR52 patents

Top patents by PatentIndex Score

US4635095AJan 6, 1987

Method for measuring the convergence of a three-gun shadow-mask cathode-ray tube and a device for the application of said method

VIDEOCOLOR29 citations90

US4678963AJul 7, 1987

Shadow mask for a colored image tube and image tube comprising the same

VIDEOCOLOR34 citations89

US4707093ANov 17, 1987

Method and device for illuminating the face plate of a color television tube for formation of the screen

VIDEOCOLOR35 citations88

US4985658AJan 15, 1991

Device for automatic simultaneous controlling of the distance between cathodes and the second grid of a trichromatic cathode tube gun

VIDEOCOLOR10 citations72

US4748899AJun 7, 1988

Dual-pressure jack

VIDEOCOLOR7 citations72

US4641062AFeb 3, 1987

Method and apparatus for adjusting the static convergence and purity of color television tubes

VIDEOCOLOR9 citations70

US4638211AJan 20, 1987

Shadow mask for a color image tube and image tube comprising the same

VIDEOCOLOR15 citations70

US4925420AMay 15, 1990

Method for the automatic measurement of convergence and for the determination of corrections to be made in trichromatic cathode tube deflectors and machine for the application of this method

VIDEOCOLOR15 citations68

US4812706AMar 14, 1989

Device for correcting the deflection effect due to a variation of the focusing voltage in a trichromatic cathode ray tube with in line cathodes

VIDEOCOLOR13 citations68

US4714497ADec 22, 1987

Process for the preparation of ferrous parts of a color television tube and furnace for operating such a process

VIDEOCOLOR14 citations68

US5306982AApr 26, 1994

Field harmonic enhancer in a deflection yoke

VIDEOCOLOR7 citations67

US4940920AJul 10, 1990

Device to shield mask cathode tubes from the earth's magnetic field

VIDEOCOLOR11 citations66

US5178906AJan 12, 1993

Method of manufacturing a phosphor screen for a CRT using an adhesion-promoting, blister-preventing solution

VIDEOCOLOR7 citations64

US4887988ADec 19, 1989

Method for the mounting of a shadow mask in a trichromatic cathode tube and cathode tube comprising a shadow mask mounted according to this method

VIDEOCOLOR13 citations64

US4846746AJul 11, 1989

Method for the manufacture of vacuum tubes stems

VIDEOCOLOR7 citations64

US5159306AOct 27, 1992

Deflection yoke liner with interconnectable sections

VIDEOCOLOR3 citations62

US4898559AFeb 6, 1990

Machines for the implantation of cathodes in cathode-ray tube guns

VIDEOCOLOR4 citations61

US4846748AJul 11, 1989

Cathode-inserting machine for cathode-ray tube

VIDEOCOLOR3 citations61

US5192898AMar 9, 1993

Deflection yoke with ringing suppression means

VIDEOCOLOR2 citations60

US5108858AApr 28, 1992

Method for making a viewing screen structure for CRT

VIDEOCOLOR3 citations59

US4896071AJan 23, 1990

Method and device for setting the static convergence and/or purity of a color television tube

VIDEOCOLOR6 citations59

US4638219AJan 20, 1987

Apparatus for adjusting the position of a deflector on a television tube, particularly a color tube

VIDEOCOLOR6 citations59

US4604071AAug 5, 1986

Process for aligning and centering an assembly of electron-guns on a color television tube and device for carrying out the process

VIDEOCOLOR5 citations59

US4590092AMay 20, 1986

Aluminization process of the internal face of the screen of a color television tube

VIDEOCOLOR11 citations59

US4538128AAug 27, 1985

Deviator for an auto convergent color picture tube and its method of manufacture

VIDEOCOLOR4 citations59

US4968082ANov 6, 1990

Method for the automatic gripping of objects, enabling the preservation of at least one reference element related to it, and grip to implement said method

VIDEOCOLOR8 citations58

US4775819AOct 4, 1988

Mask type color television tube and method of manufacturing the same

VIDEOCOLOR3 citations58

US5465026ANov 7, 1995

Deflection yoke with a core extension

VIDEOCOLOR6 citations57

US4636694AJan 13, 1987

Process and apparatus for the rapid adjustment of the static convergence and purity in a television tube, by using a permanent magnet

VIDEOCOLOR6 citations57

US4743796AMay 10, 1988

Electron gun for reduction of glimmer

VIDEOCOLOR2 citations56

US4725757AFeb 16, 1988

Color television tube incorporating correction of coma defects of small amplitude

VIDEOCOLOR2 citations56

US4839568AJun 13, 1989

Magnetic deflector for trichromatic tube with shield and method to set this deflector

VIDEOCOLOR2 citations53

US4801320AJan 31, 1989

Method for the manufacture of vacuum tube bases and device for the application of this method

VIDEOCOLOR2 citations53

US4850920AJul 25, 1989

Machine for inserting cathodes in cathode tube guns

VIDEOCOLOR1 citations51

US4800837AJan 31, 1989

Machine for depositing product on a plane and horizontal surface, especially machine for depositing frit on cathode tube cones

VIDEOCOLOR3 citations51

US4668203AMay 26, 1987

Method and apparatus for detecting evaporation of getter material during manufacture of a cathode-ray tube, especially for television

VIDEOCOLOR3 citations51

US4700164AOct 13, 1987

Magnetic deflecting yoke for cathode-ray tube with shortened neck

VIDEOCOLOR1 citations48

US5023157AJun 11, 1991

Method for the illumination of a color television mask tube screen, and device for implementation thereof

VIDEOCOLOR5 citations46

US4813900AMar 21, 1989

Device for the insertion of cathodes in cathode tube guns, especially for the simultaneous insertion of the three cathodes of a trichromatic tube

VIDEOCOLOR0 citations46

US4659959AApr 21, 1987

Shadow mask for a color picture tube and picture tube incorporating the same

VIDEOCOLOR5 citations46

US4907999AMar 13, 1990

Device for holding a substantially parallelepiped shaped part in position

VIDEOCOLOR2 citations45

US4637803AJan 20, 1987

Process for positioning and grasping semi ferrites for a magnetic core and centering device for operating said process

VIDEOCOLOR0 citations42

US4687454AAug 18, 1987

Method and device for heating the electrodes of an electron gun during its manufacture

VIDEOCOLOR1 citations40

US4709191ANov 24, 1987

Process for adjusting a deflection unit for a three aligned gun television tube and device for reducing to practice said process

VIDEOCOLOR1 citations39

US4795392AJan 3, 1989

Method for sealing vacuum tube tips especially cathode tube tips, and machine for applying this method

VIDEOCOLOR1 citations37

US4825119AApr 25, 1989

Low consumption electron gun for cathode ray tubes

VIDEOCOLOR1 citations33

US4813901AMar 21, 1989

Device for the automatic centering of cathodes in eyelets for cathode tube electron gun

VIDEOCOLOR0 citations32

Showing the top 50 of 52 patents by PatentIndex Score.

VIDEOCOLOR

Top patents by PatentIndex Score

Method for measuring the convergence of a three-gun shadow-mask cathode-ray tube and a device for the application of said method

Shadow mask for a colored image tube and image tube comprising the same

Method and device for illuminating the face plate of a color television tube for formation of the screen

Front panel for color television tubes

Method for the metallization of a luminescent screen

Method for the metallization of a luminescent screen

Device for automatic simultaneous controlling of the distance between cathodes and the second grid of a trichromatic cathode tube gun

Dual-pressure jack

Method and apparatus for adjusting the static convergence and purity of color television tubes

Shadow mask for a color image tube and image tube comprising the same

Method for the automatic measurement of convergence and for the determination of corrections to be made in trichromatic cathode tube deflectors and machine for the application of this method

Device for correcting the deflection effect due to a variation of the focusing voltage in a trichromatic cathode ray tube with in line cathodes

Process for the preparation of ferrous parts of a color television tube and furnace for operating such a process

Field harmonic enhancer in a deflection yoke

Device to shield mask cathode tubes from the earth&#39;s magnetic field

Method of manufacturing a phosphor screen for a CRT using an adhesion-promoting, blister-preventing solution

Method for the mounting of a shadow mask in a trichromatic cathode tube and cathode tube comprising a shadow mask mounted according to this method

Method for the manufacture of vacuum tubes stems

Deflection yoke liner with interconnectable sections

Machines for the implantation of cathodes in cathode-ray tube guns

Cathode-inserting machine for cathode-ray tube

Deflection yoke with ringing suppression means

Method for making a viewing screen structure for CRT

Method and device for setting the static convergence and/or purity of a color television tube

Apparatus for adjusting the position of a deflector on a television tube, particularly a color tube

Process for aligning and centering an assembly of electron-guns on a color television tube and device for carrying out the process

Aluminization process of the internal face of the screen of a color television tube

Deviator for an auto convergent color picture tube and its method of manufacture

Method for the automatic gripping of objects, enabling the preservation of at least one reference element related to it, and grip to implement said method

Mask type color television tube and method of manufacturing the same

Deflection yoke with a core extension

Process and apparatus for the rapid adjustment of the static convergence and purity in a television tube, by using a permanent magnet

Electron gun for reduction of glimmer

Color television tube incorporating correction of coma defects of small amplitude

Magnetic deflector for trichromatic tube with shield and method to set this deflector

Method for the manufacture of vacuum tube bases and device for the application of this method

Machine for inserting cathodes in cathode tube guns

Machine for depositing product on a plane and horizontal surface, especially machine for depositing frit on cathode tube cones

Method and apparatus for detecting evaporation of getter material during manufacture of a cathode-ray tube, especially for television

Magnetic deflecting yoke for cathode-ray tube with shortened neck

Method for the illumination of a color television mask tube screen, and device for implementation thereof

Device for the insertion of cathodes in cathode tube guns, especially for the simultaneous insertion of the three cathodes of a trichromatic tube

Shadow mask for a color picture tube and picture tube incorporating the same

Device for holding a substantially parallelepiped shaped part in position

Process for positioning and grasping semi ferrites for a magnetic core and centering device for operating said process

Method and device for heating the electrodes of an electron gun during its manufacture

Process for adjusting a deflection unit for a three aligned gun television tube and device for reducing to practice said process

Method for sealing vacuum tube tips especially cathode tube tips, and machine for applying this method

Low consumption electron gun for cathode ray tubes

Device for the automatic centering of cathodes in eyelets for cathode tube electron gun

Device to shield mask cathode tubes from the earth's magnetic field