Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7227298 | Color picture tube and method for manufacturing the same A phosphor screen is formed on an inner surface of a face portion whose outer surface is substantially flat. A shadow mask faces the phosphor screen. The shadow mask includes a perforated portion having a plurality of apertures, a non-perforated portion formed on a ... | 06/05/2007 |
| 7183525 | Roasting device The invention relates to a roasting/grilling device with a roasting/grilling plate (7) and with a thermostatic regulation of the roasting/grilling power. For this the temperature of the roasting/grilling plate (7) is monitored in a contactless manner b... | 02/27/2007 |
| 7169004 | Apparatus and method for placing spacers in an emissive display An apparatus (10) for, and method of, placing a plurality of spacers (12) between a parallel opposed anode and cathode (20) of an emissive display includes temporarily securing, by applying a vacuum for example, a first side of one of the anode ... | 01/30/2007 |
| 7025652 | Electron amplifier utilizing carbon nanotubes and method of manufacturing the same An electron amplifier and a method of manufacturing the same are provided. The electron amplifier includes a substrate in which a plurality of through holes are formed, a resistive layer deposited on the sidewalls of the through holes, an electron emissive layer inc... | 04/11/2006 |
| 6974358 | Discrete magnets in dielectric forming metal/ceramic laminate and process thereof The present invention relates generally to a new dielectric forming metal/ceramic laminate magnet and process thereof. More particularly, the invention encompasses a new process for fabrication of a large area laminate magnet with a significant number of holes, inte... | 12/13/2005 |
| 6954026 | Color cathode ray tube having variable apertures in a shadow mask Each of a plurality of arrays of apertures of a shadow mask has a vertically long aperture, a vertically short aperture and a bridge between these apertures. In each of the arrays of apertures, one long aperture and one or more short apertures are arranged alternate... | 10/11/2005 |
| 6940229 | Glass bulb for cathode ray tube With respect to a highly flat glass bulb for cathode ray tube having an effective screen diameter along a diagonal axis of a glass panel 10 of more than or equal to 500 mm, and an average radius of curvature of an outer surface of a face portion of more than ... | 09/06/2005 |
| 6922010 | Shadow mask for a cathode ray tube The present invention provides a shadow mask having an improved resistance to an impact such as vibration or dropping so as to keep a constant quality of a color cathode-ray tube. The object is achieved by a shadow mask in which throughholes are formed, each of the ... | 07/26/2005 |
| 6864485 | Ion optics with shallow dished grids In accordance with one specific embodiment of the present invention, the ion optics for use with an ion source have a plurality of electrically conductive grids that are mutually spaced apart and have mutually aligned respective pluralities of apertures through whic... | 03/08/2005 |
| 6857927 | Method of securing shadow mask and frame in the manufacture of a cathode ray tube A welding route of welding a color selecting electrode to a frame is as follows: first of all, a welding head moves down onto one end portion of a long frame side (Step I), welding is conducted from the end portion toward a center portion of the long frame side (Ste... | 02/22/2005 |
| 6848960 | Method for manufacturing color selection electrode structure and color cathode ray tube having the color selection electrode structure To provide a method for manufacturing a color selection electrode structure easily capable of measuring a tension amount of the color selection electrode in the process for manufacturing the color selection electrode structure and a color cathode ray tube using the ... | 02/01/2005 |
| 6838297 | Nanostructure, electron emitting device, carbon nanotube device, and method of producing the same The invention provides a nanostructure including an anodized film including nanoholes. The anodized film is formed on a substrate having a surface including at least one material selected from the group consisting of semiconductors, noble metals, Mn, Fe, Co, Ni, Cu ... | 01/04/2005 |
| 6832942 | CRT and frame assembly therefor A cathode ray tube is provided which includes a panel having a fluorescent surface formed on an inside surface thereof, a tension type shadow mask fitted to the panel with a gap formed therebetween, and a frame. The frame includes two main frames fixed to the tensio... | 12/21/2004 |
| 6817919 | Method and apparatus for manufacturing a frame work for shadow mask After assembling a framework in an approximately rectangular form, a basis plane is formed by grinding a bottom surface of the framework. Then, ends of two opposing sides of the framework on a side opposite to the basis plane are cut in a predetermined shape by shea... | 11/16/2004 |
| 6803711 | Mask for color cathode ray tube having beneficial slot and bridge configurations, manufacturing method thereof, and exposure mask for manufacturing the mask A mask for a color cathode ray tube (CRT) and a manufacturing method thereof are provided. This mask includes a plurality of strips isolated from each other at predetermined intervals in parallel, and a plurality of bridges for forming slots through which electron b... | 10/12/2004 |
| 6781297 | Method and apparatus for maintaining mask strand spatial uniformity A method and apparatus of maintaining spacing between tension mask strands in a tension mask. The method includes providing a tension mask with strands connecting therebetween and attaching a set of barrier ridge elements to a first side of the strands. Next, the te... | 08/24/2004 |
| 6777863 | Material for aperture grill for color picture tube, process for making the same, aperture grill, and picture tube A material is provided for marking aperture grilles for use in a color picture tube which has excellent yield strength, high temperature creep strength, and superior magnetic characteristics as compared to conventional materials. The material is made by cold-rolling... | 08/17/2004 |
| 6759800 | Diamond supported photocathodes for electron sources A photocathode as a source of electron beams, having a substrate of optically transmissive diamond and a photoemitter. A photocathode with a single emitting region provides a single electron beam; a photocathode with multiple emitting regions provides multiple elect... | 07/06/2004 |
| 6741016 | Focusing lens for electron emitter with shield layer An electron lens is used for focusing electrons from a cathode to an anode. The lens includes a first conductive layer with a first opening at a first distance from the cathode. The first conductive layer is held at a first voltage. The lens also includes a second c... | 05/25/2004 |
| 6729927 | Method and apparatus for making a shadow mask array A method for making a shadow mask array is taught. Producing a plurality of shadow mask sections; inspecting the plurality of shadow mask sections to determine which shadow mask sections are acceptable as meeting predetermined criteria; positioning a predetermined n... | 05/04/2004 |
| 6722938 | Shadow mask, plate member therefor and method of manufacturing shadow mask A shadow mask is formed from a plate member comprising an outer frame portion, a body portion of a shadow mask having an outer peripheral line formed through an etching process and a plurality of connection portions through which the body portion of the shadow mask ... | 04/20/2004 |
| 6630778 | Color CRT and production method therefor A color cathode ray tube includes a transparent panel, a funnel joined airtightly to a circumference portion of a sidewall of the panel, a light absorption layer (black layer) and an optical filter layer both disposed on an interior surface of the transpa... | 10/07/2003 |
| 6611089 | Tension mask assembly for color CRT having at least two divided portions A tension mask assembly for a color cathode ray tube includes a tension mask including at least two divided portions, each having a plurality of strips separated a predetermined distance from each other for forming slots, and each having a plurality of br... | 08/26/2003 |
| 6604974 | Method and apparatus for applying crosswires to a tension focus mask A method and apparatus for applying crosswires to a tension mask. The method includes winding crosswires around various drum assemblies and then using transfer devices to remove sections of crosswires and transfer them to tension mask frame assemblies.... | 08/12/2003 |
| 6583545 | Aperture grill material for color picture tube, production method thereof, aperture grill and picture tube A purpose of the present invention is to provide material of an aperture grille used for a color picture tube having excellent yield strength, excellent high temperature creep strength and excellent magnetic characteristic, material of an aperture grille ... | 06/24/2003 |
| 6518695 | Mask-frame assembly for cathode ray tube A mask-frame assembly for a cathode ray tube includes a mask frame having a front portion and a side portion perpendicularly extending from the edge of the front portion and having notches, and a shadow mask having a front screen portion and a skirt porti... | 02/11/2003 |
| 6512324 | Stretched mask for color picture tube A stretched mask for a color picture tube and a material for the stretched mask. The stretched mask is formed from a nickel-iron alloy steel sheet made of a nickel-iron alloy containing 35.0% to 37.0% by weight of nickel and 0.01% to 0.06% by weight of ca... | 01/28/2003 |
| 6508945 | Aperture grill for use in cathode ray tube and method for producing same A lightweight cathode ray tube is formed by reducing a cross-sectional area on the apeture grill tapes in the aperture grill. One exemplary embodiment of the reduced cross-sectional area aperture grill tape includes a central longitudinal channel in a sid... | 01/21/2003 |
| 6497330 | Carrier substrate A carrier substrate for carrying objects subjected to elevated temperatures comprises at least a grid part and a border part. The grid part includes grid elements having end portions provided with holes. The end portions partly extend outside the border p... | 12/24/2002 |
| 6496545 | Single side-band mixer In accordance with the invention, a single sideband mixer includes first and second all-pass 90° phase shifters. Each phase shifter produces two outputs of substantially equal amplitude but subject to a phase angle error (θ) indicative of a deviation fr... | 12/17/2002 |
| 6406927 | Method of fabricating row lines of a field emission array and forming pixel openings therethrough A method for fabricating row lines over a field emission array employs only two mask steps to define row lines and pixel openings. A layer of conductive material is disposed over a substantially planarized surface of a grid of semiconductive material and ... | 06/18/2002 |
| 6387718 | Field emission arrays and method of fabricating emitter tips and corresponding resistors thereof with a single mask A method for fabricating field emission arrays employs a single mask to define emitter tips, their corresponding resistors, and, optionally, conductive lines. One or more material layers from which the emitter tips and resistors will be defined are formed... | 05/14/2002 |
| 6386934 | Method of manufacturing electronic tube The present invention has an object to provide a method of manufacturing an electronic tube capable of eliminating deterioration of image quality due to an excessively high electron reflection effect of a material comprising a metal element with an atomic... | 05/14/2002 |
| 6373177 | Shadow mask for cathode ray tube and method of manufacturing same A shadow mask for a cathode ray tube includes a surface hardening layer and a solid-solution and precipitation hardening layer formed under the surface hardening layer.... | 04/16/2002 |
| 6354897 | Field emission displays and manufacturing methods A field emission display having a plurality of cathodes; a cathodoluminescent anode; a plurality of control electrodes for controlling the flow of electrons between the cathodes and the anode; a focus grid comprising an apertured, conductive sheet; and a ... | 03/12/2002 |
| 6354902 | Method of producing color selection electrode and cathode ray tube A color selection electrode and a method of producing the same, for a high definition cathode ray tube with a finer pitch of mask apertures free from limitations due to the thickness of the iron-alloy plate of the mask. The method comprising, the steps of... | 03/12/2002 |
| 6342756 | Anti-doming compositions for a shadow-mask and processes for preparing the same An anti-doming composition including a mixture of electron reflecting material such as bismuth oxide, and a zeolite, and a shadow-mask coated with the composition restrict temperature increase by preventing heat transfer, an anti-doming composition includ... | 01/29/2002 |
| 6333595 | Method for producing electron tube It is an object of the present invention to present a method for producing an electron tube capable of preventing agglomeration of particles contained in coating material to be coated on an shadow mask to form an electron beam reflecting film, that causes... | 12/25/2001 |
| 6320306 | Shadow mask with porous insulating layer and heavy metal layer A shadow mask for color picture tubes has a cathode-side surface covered with a heat-insulating layer, an electron reflecting and absorbing layer, and a heat-emitting cover layer. Some of the electrons are reflected while others are absorbed in the cover ... | 11/20/2001 |
| 6316869 | Shadow mask in color CRT A shadow mask in a color cathode ray tube, is disclosed, formed with invar alloy thin plate with a texture which allows formation of uniform sized electron beam pass-through holes, with excellent roundness and a small etching deviation in etching, includi... | 11/13/2001 |
