Patents Examined by Matt Hodges
  • Patent number: 6879097
    Abstract: A flat-panel cathode-ray tube display contains electron-emissive regions (54) spaced non-uniformly apart from one another in a line of the electron-emissive regions so as to better utilize the space where the electron-emissive regions are located. Alternatively or additionally, electron focusing can be appropriately made more concentrated by implementing each electron-emissive region as two or more portions 54A-54F) situated suitably with respect to openings (86A-86F) in an electron-focusing system (76).
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: April 12, 2005
    Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.
    Inventor: James C. Dunphy
  • Patent number: 6876149
    Abstract: A double-faced LED device includes a substrate having opposed faces, a central recess formed in each of the opposed faces, a pair of electrode layers formed on each of the opposed faces, the electrode layer having a surface within the central recess formed into a reflector surface, and an LED securely mounted on the electrode layer within the central recess of each of the opposed faces, to which electric current may be applied to emit light from both of the opposed faces.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: April 5, 2005
    Assignee: Citizen Electronics Co., Ltd.
    Inventor: Shinichi Miyashita
  • Patent number: 6870309
    Abstract: The invention relates to flat panel display terminals based on cold emission cathodes. The aim of said invention is to develop a full color processing display terminal using a cold emission cathode having high emission characteristics. The inventive cold emission film cathode comprises an insulated substrate which can be made of glass and a nanocrystalline carbon film emitter placed on it, said emitter is embodied in the form of a mono layer of grains of powder of a high temperature resistive material having a grain size ranging from 10?9 to 10?4 m, said grains being covered with a nanocrystalline carbon film. The inventive flat display terminal comprises flat glass plates on one of which a system of cold emission cathodes is arranged, said cathodes are embodied in a form of busbars coated with the mono layer of grains of powder of high temperature resistive material having a grain size ranging from 10?9 to 10?4 m which are covered with a nanocrystalline carbon film.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: March 22, 2005
    Assignee: Obschestvo S Organichennoi Otvetstvennostiju “Vysokie Tekhnologii”
    Inventors: Alexandr Alexandrovich Blyablin, Alexandr Tursunovich Rakhimov, Vladimir Anatolievich Samorodov, Nikolai Vladislavovich Suetin, Mikhail Arkadievich Timofeev
  • Patent number: 6857927
    Abstract: 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 (Step II). Then, after moving up once (Step III), the welding head moves horizontally toward the other end portion of the long frame side (Step IV) and moves down onto the long frame side (Step V), and welding is conducted from the other end portion toward a center portion of the long frame side (Step VI). Finally, the welding head retracts (Step VII). With this welding route, the generation of wrinkles in the vicinity of the end portions of the long sides of the color selecting electrode can be suppressed.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: February 22, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kiyohito Miwa, Toshifumi Nakatani, Tutomu Utsumi
  • Patent number: 6856091
    Abstract: A discharge chamber for an arc discharge metal halide lamp having light permeable walls bounding a discharge region in which ionizable materials are provided with at least one electrode accommodation opening therein extending along a selected path between that discharge region and a region outside those walls. An electrode arrangement extends through the electrode accommodation opening having therein a thin electrical conductor positioned at least in part therein with a major surface that has surface curvature in at least some of those portions thereof positioned in said electrode accommodation opening to be in one of many alternative configurations. A sealing frit of mixed metal oxides is positioned about at least a portion of the thin electrical conductor within the electrode accommodation opening both at the major surface thereof and on an opposite side thereof.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: February 15, 2005
    Assignees: Matsushita Electric Industrial Co., Ltd., Matsushita Electric Works, Ltd.
    Inventors: Timothy Lee Kelly, Jagannathan Ravi, Huiling Zhu
  • Patent number: 6856076
    Abstract: A plasma display device which improves the adhesion rate of a thermal conductive medium. A chassis base is disposed substantially parallel to a plasma display panel. A thermally conductive medium is disposed between the plasma display panel and the chassis base and is closely adhered to both the plasma display panel and the chassis base. An adhesive pad is interposed between the plasma display panel and the chassis base along the edge of the thermally conductive medium and is adhered to both the plasma display panel and the chassis base. The thermally conductive medium includes a plurality of thermally conductive particles of high thermal conductivity.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: February 15, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ki-Jung Kim, Ki-Yun Joung, Tae-Kyoung Kang
  • Patent number: 6853140
    Abstract: A compact fused silica, electroded HID lamp for automotive forward lighting, which contains no mercury. The lamps voltage, approximately 40 volts, is developed in this lamp by vaporizing zinc iodide instead of mercury. A compromise between voltage and luminous flux is achieved through the choice of the sodium scandium (Na:Sc) molar ratio, between 4.5:1 and 6:1 and a zinc iodide (ZnI2) dose of 2 to 6 micrograms per cubic millimeter that permits the lamp to operate within the North America, European and Japanese automotive color specifications for white light. The voltage in the lamp can be controlled according to the zinc iodide doping level without seriously impacting the visible spectrum otherwise provided by the other known dopants in the lamp.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: February 8, 2005
    Assignee: Osram Sylvania Inc.
    Inventors: Walter P. Lapatovich, Sharon L. Ernest, Susan L. Callahan, Janice T. Karlotski, Robert J. Karlotski
  • Patent number: 6850003
    Abstract: Provided is a method of fabricating an organic light-emitting device; which method comprises the steps of: forming a first electrode (4) for the device over a substrate (2); either forming by self-assembly at least one polymer layer (6, 8) over the first electrode (4) and forming other than by self-assembly at least one layer of organic light emissive material (10) over the at least one polymer layer (6, 8); and forming a second electrode (12) for the device over the at least one layer of organic light emissive material (10); or forming other than by self-assembly at least one layer of organic light emissive material over the first electrode and forming by self-assembly at least one polymer layer over the at least one layer of organic light emissive material; and forming a second electrode for the device over the at least one polymer layer. Also provided is an organic light emitting device, obtainable according to the method of the present invention.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: February 1, 2005
    Assignee: Cambridge Display Technology, Ltd.
    Inventors: Karl Pichler, Jeremy Burroughes, Peter Ho, Chris Bright, Richard Henry Friend, Neil Clement Greenham
  • Patent number: 6844669
    Abstract: A glass funnel for a cathode ray tube, which has a substantially rectangular opened end at one end and a neck portion at the other end and which constitutes, together with a glass panel having a substantially rectangular face portion, a glass bulb to be used for a cathode ray tube, wherein the glass constituting the glass funnel contains, by molar percentage, at least 60% of SiO2 and at least 7% of PbO; when the molar percentages of Na2O and K2O contained in said glass are represented by WNa and WK, respectively, 0.35?WK/(WNa+WK)?0.6; a compressive stress layer is formed by chemical tempering at least in the outer surface of a region containing a position where the tensile stress formed when the interior of the glass bulb is vacuumed to produce the cathode ray tube, becomes maximum; and either one or both of the outer surface of the chemically tempered region and the inner surface opposite to said outer surface, are colored by ion exchange coloration.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: January 18, 2005
    Assignee: Asahi Glass Company, Limited
    Inventors: Tsunehiko Sugawara, Mikio Ueki
  • Patent number: 6838818
    Abstract: A light emitting device having an anode and a cathode provided on a substrate, and an organic light emitting layer between the anode and the cathode, where the organic light emitting layer includes a light emitting material and a dopant for improving the dispersibility thereof. As the dopant, there are employed a light emitting compound and a non-light emitting compound or a current enhancing material. In case of employing the light emitting compound, the composition corresponds to a case of utilizing plural light emitting materials, and, in such case, the light emission wavelengths are preferably mutually closer. Also, evaporation of the light emitting material and the dopant in the same evaporation boat makes it possible to reduce evaporation temperature, thereby improving the dispersability of the light emitting material.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: January 4, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Furugori, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Hironobu Iwawaki
  • Patent number: 6832941
    Abstract: A surface treatment process for fabricating a panel of an organic light emitting device is disclosed.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: December 21, 2004
    Assignee: Ritek Corporation
    Inventor: Tien-Rong Lu
  • Patent number: 6831401
    Abstract: An electron emitting device comprising: a pair of conductors opposed to each other on a substrate; and a pair of deposition films having carbon as a main component which are respectively connected to the pair of conductors and disposed with a gap therebetween. The deposition film contains sulfur in a range of not less than 1 mol % and not more than 5 mol % as a ratio to carbon.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: December 14, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keisuke Yamamoto, Miki Tamura, Yasuhiro Hamamoto
  • Patent number: 6831409
    Abstract: In a display device in which a light emitting layer is interposed between a first electrode and a second electrode, and at least one of the light emitting layer and one of the first and second electrodes from which light is extracted functions as a cavity portion of a cavity structure for resonating light generated in the light emitting layer, the peak wavelength of internal emission spectrum inside the light emitting layer and the peak wavelength of multiple interference filter spectrum by the cavity portion are shifted from each other to adjust the RGB balance in the luminance variance under the existence of a view angle by adjusting that shift value.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: December 14, 2004
    Assignee: Sony Corporation
    Inventor: Jiro Yamada
  • Patent number: 6825605
    Abstract: A cathode ray tube includes a panel in which a phosphor layer is formed, a funnel connected to the panel, the funnel including a neck having a region for housing an electron gun and a region to which a stem is sealed, and a stem having a plurality of stem pins, each stem pin being supported by each stem mound for applying voltage to each electrode of the electron gun. The inside diameter of the stem sealing region of the neck is greater than that of the electron gun-housing region, the diameter of an inner stem pin circle formed by interior stem pins disposed on the inside of the neck is less than that of an outer stem pin circle formed by exterior stem pins disposed on the outside thereof, a horizontal length between an outer edge of the stem mound and an interior of the neck is in the range greater than or equal to 1.0 mm and less than or equal to 2.0 mm.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 30, 2004
    Assignee: Samsung SDI CO., Ltd.
    Inventors: Jae-Young Ha, Kue-Hong Lee, Dong-Won Lim
  • Patent number: 6822383
    Abstract: In order to suppress production of devitrifying stones such as barium disilicate and strontium silicate and to achieve a high X-ray absorbability, a CRT panel glass does not substantially contain PbO and contains, in mass percent, 9-9.5% SrO and 8.5-9% BaO. In addition, the value of SrO/(SrO+BaO) is set to 0.50-0.53. Therefore, the CRT panel glass has an X-ray absorption coefficient of 28.0 cm−1 or more at 0.6 Å.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: November 23, 2004
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Hiroshi Komori, Hiroki Yamazaki
  • Patent number: 6822388
    Abstract: A display device of the present invention reduces the occurrence of cracks and breaking of plate-like control electrodes, enhances the operability of assembling and suppresses the reduction of a yield factor of products. The display device includes a back substrate which has a plurality of cathode lines which extend in one direction, are arranged in parallel in another direction which crosses one direction and include electron sources respectively, and a plurality of control electrodes which cross the cathode lines in a non-contact manner within a display region, extend in another direction and are arranged in parallel in one direction on an inner surface thereof, and a front substrate which has anodes and phosphors on an inner surface thereof and faces the back substrate with a given distance therebetween. The control electrodes are formed of plate-like control electrodes.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: November 23, 2004
    Assignees: Hitachi, Ltd., Hitachi Device Engineering, Co.
    Inventors: Yuuichi Kijima, Kenji Miyata, Yoshiyuki Kaneko, Shigemi Hirasawa, Susumu Sasaki, Hiroshi Kawasaki, Jun Ishikawa
  • Patent number: 6815886
    Abstract: A light emitting device comprising a substrate, a transparent electrode formed on said substrate, a layer of light emitting material provided over the transparent electrode and having at least one corrugated surface, and a further electrode formed over the light emitting material. In a preferred arrangement there is provided a light emitting device comprising a substrate having a corrugated surface, a transparent electrode formed on said corrugated surface, a layer of light emitting material provided over the transparent electrode and a further electrode formed over the light emitting material.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: November 9, 2004
    Assignees: Seiko Epson Corporation, Cambridge University Technical Services Limited of the Old Schools
    Inventor: Takeo Kawase
  • Patent number: 6812632
    Abstract: A glass funnel for a cathode ray tube capable of increasing the rigidity of a body portion having a rectangular-shaped open end portion and reducing the weight of the glass funnel wherein on at least a long side of the body portion, arched face portions are formed so as to be substantially perpendicular to an open end face of the body portion and an arch-like ridge portion in each of the arched face portions is extended to portions in the vicinity of the open end portion, whereby stresses generated in the body portion can be transmitted to the corner portions of high rigidity of the open end portion along the ridge portions.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: November 2, 2004
    Assignee: Asahi Glass Company, Limited
    Inventors: Tsunehiko Sugawara, Toshihide Murakami, Kentaro Tatsukoshi
  • Patent number: 6809478
    Abstract: A metal halide lamp for an automobile headlight is provided, which includes an arc tube in which a pair of tungsten electrodes are provided at both ends and a metal halide as a main component of a luminescent material and xenon gas as a buffer gas are sealed, wherein the tungsten electrodes contain not more than 0.4 wt % of thorium oxide, the metal halide contains scandium iodide, and a pressure of the xenon sealed in the arc tube is at least 0.4 MPa. This makes it possible to provide a long-life metal halide lamp for an automobile headlight that can achieve a further improved lumen maintenance factor and other life characteristics during 2000 hours or more of lighting.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: October 26, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yoshida, Hideaki Kiryu
  • Patent number: 6800991
    Abstract: Disclosed is a cathode ray tube with an electron gun capable of improving a resolution of an image by preventing electron beams from striking electrodes and efficiently controlling a spot size that is susceptible to a change in current capacity.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: October 5, 2004
    Assignee: LG. Philips Displays Korea Co., Ltd.
    Inventor: Jin Yeal Choi