Patents Examined by Matthew J. Gerike
  • Patent number: 6066913
    Abstract: Disclosed is a method of arranging a conductive wire pattern of a film-type saddle deflection member for a cathode ray tube which properly arranges the conductive wires of each film such that an optimum magnetic field can be obtained, and a film-type saddle deflection member having the conductive wire pattern arranged by the method. In the method, the total number of conductive wires arranged from a horizontal axis of the cathode ray tube to a position having an angle of .theta. is determined by a following equation according to angle .theta. taken from the horizontal axis of the cathode ray rube: [.PHI.(.theta.)=A.sub.1 sin .theta.+A.sub.3 sin 3.theta.+A.sub.5 sin 5.theta.+ . . . ], in which .theta. is an angle taken from the horizontal axis to 90 degree, A.sub.1, A.sub.3, A.sub.5, . . . , A.sub.2N-1 are integers, and n is a natural number.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: May 23, 2000
    Assignee: Orion Electric Company
    Inventors: Baek Young Choi, Soo Kyong Byun, Don Bean Choi
  • Patent number: 6066918
    Abstract: The high pressure discharge lamp comprises a ceramic discharge tube containing an ionizable luminescent material and a starting gas filled in the inner space thereof, a clogging member having through-holes, and at least a portion of which being fixed on the inner side of the end portion of the ceramic discharge tube, an electric conductor having an electrode system inserted in the through-holes of the clogging member, and a sealing material layer. Preferably, the sealing material layer 16A is made of a metallizing layer. In addition, the high pressure discharge lamp comprises the ceramic discharge tube, the clogging member, the electric conductor inserted in the through-holes of the clogging member, and a metallizing layer for sealing provided so as to join to the clogging member and the electric conductor.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: May 23, 2000
    Assignee: NGK Insulators, Ltd.
    Inventors: Go Suzuki, Norikazu Niimi, Tsutomu Kondo
  • Patent number: 6060829
    Abstract: The high-pressure metal halide discharge lamp has opposite tungsten electrodes (5) carried by electrode rods (7). These rods (7) have a first portion (71) of tungsten adjacent the electrodes (5) and a second portion (72) having a core of tungsten and a skin of at least 90% by weight of rhenium. Their common boundaries are at a location having during operation a temperature in the range of 1900-2100 K. The gas filling contains metal oxyhalide and is devoid of rare earth metal compounds. The lamp has a long life and a high luminous maintenance.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: May 9, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Marcus Kubon, Robert P. Scholl
  • Patent number: 6051926
    Abstract: A noble gas discharge lamp of the present invention comprises an outer enclosure comprising a light emitting layer formed therein, and a pair of outer electrodes having tape shapes comprising a metal, which are adhered to the entire length of the outside of the outer enclosure so as to separate one outer electrode and the other outer electrode at a certain distance. The electrodes form a first opening portion and a second opening portion; wherein the outer enclosure is filled with at least one kind of noble gas under the confining pressure is in a range of 83 to 200 Torr. There is at least one nonlinear portion formed at at least one side portion of the outer electrodes.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: April 18, 2000
    Assignee: NEC Corporation
    Inventor: Satoshi Tamura
  • Patent number: 6046542
    Abstract: In a flat panel display or other type of electron device, a thin-film electron emitter (51) and/or emitter array (50) is formed in a semiconductor film (10) of, for example, hydrogenated amorphous and/or microcrystalline Si, SiC.sub.x, SiN.sub.y, SiO.sub.x N.sub.y or the like. An injector electrode (14) forms a potential barrier (.phi..sub.B) with the semiconductor film (10) at a back major surface (12) of the film (10). A front electrode (15) serves for biasing an emission area (11a) of the front major surface (11) at a sufficiently positive potential (V.sub.15) with respect to the injector electrode (14) as to inject electrons (e) over the barrier (.phi..sub.B) in the operation of the emitter (51) while controlling the magnitude of an electron accumulation layer (Ne) in the semiconductor film (10) at the emission area (11a).
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: April 4, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Sembukuttiarachilage R. P. Silva, John M. Shannon
  • Patent number: 6043605
    Abstract: A plasma display device comprising: a rear substrate; a plurality of first electrodes formed on the rear substrate in a predetermined pattern; a dielectric layer formed on the rear substrate where the first electrodes are to be embedded; a plurality of second electrodes formed on the dielectric layer to be orthogonal with respect to the first electrodes; and at least one auxiliary electrode formed between the second electrodes.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: March 28, 2000
    Assignee: Samsung Display Devices Co., Ltd.
    Inventor: Deuk-il Park
  • Patent number: 6043600
    Abstract: A shatter-resistant lamp assembly is formed by encasing a cylindrical lamp bulb in a seamless non-frangible sleeve that is sealed at each end to one end of the lamp. A straight lamp assembly is made by applying an adhesive to each end of a straight lamp bulb, preferably by wrapping double-sided adhesive transfer tape around each metal end cap of the lamp bulb, inserting the bulb into the sleeve with the ends of the sleeve overlapping the tape wound on each end of the bulb, and compressing the ends of the sleeve onto the tape by heat-sealing. A curved lamp assembly is formed by molding two halves of a curved sleeve with contours to fit the curved lamp bulb. Adhesive is applied to the ends of the curved lamp bulb, the two halves of the sleeve are fastened together with adhesive or by ultrasonic bonding, and the ends of the sleeve are attached to the ends of the bulb by the same means as that used for the straight lamp assembly.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: March 28, 2000
    Assignee: Royal Lite Manufacturing & Supply Corp.
    Inventor: Michael F. Sica
  • Patent number: 6043602
    Abstract: A light emitting phosphor having improved luminance is incorporated into an ACTFEL device having front and rear electrode sets, a pair of insulators sandwiched between the front and rear electrode sets, and a thin film electroluminescent laminar stack which includes a phosphor layer having the formula M.sup.II S:D,H,F where M.sup.II is taken from the group calcium, strontium, barium, and magnesium, S=sulfur, D is taken from the group copper, lead, gold, silver, magnesium, antimony, bismuth and arsenic, H is taken from the group fluorine, chlorine, bromine, and iodine, and F is taken from the group gallium, indium, aluminum, germanium, silicon, lanthanum, scandium, and yttrium. Deep blue and green chromaticity phosphors may be obtained through selection of multiple co-dopants and adjusting their relative concentrations.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: March 28, 2000
    Inventors: Sey-Shing Sun, Jim Kane, P. Niel Yocom
  • Patent number: 6037708
    Abstract: A lateral-emitter field emission device has a thin-film emitter cathode 50 which has thickness of not more than several hundred angstroms and has an edge or tip 110 having a small radius of curvature. To form a novel display cell structure, a cathodoluminescent phosphor anode 60 is positioned below the plane of the thin-film lateral-emitter cathode 50, allowing a large portion of the phosphor anode's top surface to emit light in the desired direction. An anode contact layer contacts the phosphor anode 60 from below to form a buried anode contact 90 which does not interfere with light emission. The anode phosphor is precisely spaced apart from the cathode edge or tip and receives electrons emitted by field emission from the edge or tip of the lateral-emitter cathode, when a small bias voltage is applied. The device may be configured as a diode, triode, or tetrode, etc.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: March 14, 2000
    Assignee: Advanced Vision Technologies, Inc.
    Inventor: Michael D. Potter
  • Patent number: 6034469
    Abstract: There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an electron emission surface of the large particle diameter low porosity region and has an average particle diameter smaller than an average particle diameter of the large particle diameter low pore region and a porosity higher than a porosity of the large particle diameter low porosity region, the impregnated-type cathode being impregnated with an electron emission substance.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: March 7, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Eiichirou Uda, Toshiharu Higuchi, Osamu Nakamura, Kiyomi Koyama, Sadao Matsumoto, Yoshiaki Ouchi, Kazuo Kobayashi, Takashi Sudo, Katsuhisa Homma
  • Patent number: 6034475
    Abstract: A plasma display panel having a glass substrate, a dielectric layer over the glass substrate and one or more barrier ribs over the dielectric layer, and a method of manufacturing thereof. In the plasma display panel, the thermal expansion coefficients of the glass substrate and the barrier ribs are greater than that of the dielectric layer. The dielectric layer is 80.about.83.times.10.sup.-7 /.degree. C. and the glass substrate and barrier ribs are 84.about.87.times.10.sup.-7 /.degree. C. in thermal expansion coefficient.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: March 7, 2000
    Assignee: LG Electronics Inc.
    Inventor: Jeong-Soo Yoon
  • Patent number: 6034470
    Abstract: A flat fluorescent lamp (1) has a discharge vessel (2) having a base plate (7), a top plate (8) and a frame (9) which are connected to one another in a gas-tight fashion by means of solder (10). Structures resembling conductor tracks function in the interior of the discharge vessel as electrodes (3-6), in the feedthrough region as feedthroughs, and in the external region as external supply leads (13; 14). Flat lamps of the most different sizes can thereby be produced simply in engineering terms and in a fashion capable of effective automation. Moreover, virtually any electrode shapes can be realized, in particular optimized with regard to a uniform luminous density with a reduced drop in luminous density towards the edges of the flat lamp. At least the anodes (5, 6) are covered in each case with a dielectric layer (15). The lamp (1) is preferably operated by means of a pulsed voltage source and serves as background lighting for LCDs, for example in monitors or driver information displays.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: March 7, 2000
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Frank Vollkommer, Lothar Hitzschke
  • Patent number: 6031320
    Abstract: An apparatus for cooling an electrodeless lamp including a supersonic outlet jet for providing a stream of cooling gas. A common manifold including mounting elements for a plurality of conduits of equal length for transporting cooling gas, wherein the mounting elements are at staggered elevational positions so that the conduits provide cooling gas in the vicinity of lamp envelope at different elevational positions.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: February 29, 2000
    Inventors: Mohammad Kamarehi, Aseem Kumar Srivastava, Robert D. Wooten
  • Patent number: 6031327
    Abstract: A deflection yoke for use in a cathode ray tube is disclosed for overcoming a deflection yoke noise problem due to the vibration of a correction projection and simultaneously controlling in an easy manner a local magnetic field adjustment. The deflection yoke includes a net-shaped correction projection for convergence correction formed of a plurality of wires.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: February 29, 2000
    Assignee: LG Electronics Inc.
    Inventor: Seok-Moon Lee
  • Patent number: 6031324
    Abstract: An annulus fluorescent lamp comprises a plurality of annulus fluorescent tubes having different diameters and disposed substantially concentrically in substantially the same plane. Each of the annulus fluorescent tubes has a first end with electrodes and a second end without electrodes. The second ends of the annulus fluorescent tubes are communicated with each other via a bridge portion so that a single discharge path is formed inside the plurality of annulus fluorescent tubes. The annulus fluorescent lamp also comprises a mouthpiece covering the first and second ends of the annulus fluorescent tubes. The second end forms the lowest temperature portion. The mouthpiece is provided with through holes for ventilation close to the second end and an insulating wall on an inner face for separating power lines at the first ends from the through holes for ventilation.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: February 29, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenji Itaya, Takeshi Matsumura
  • Patent number: 6025676
    Abstract: A face panel (12) constituting a part of a vacuum envelope (20) has a substantially rectangular effective area (10), the inner surface of which is formed with a phosphor screen (14). The effective area has a long axis (X) extending in the horizontal direction and a short axis (Y) extending in the vertical direction. The outer surface of the effective area is cylindrically curved with an infinitely large radius of curvature along the long axis and a predetermined radius of curvature along the short axis. The vacuum envelope has arranged therein a shadow mask (15) in opposed relation to the phosphor screen. A mask body of the shadow mask has a substantially rectangular effective surface cylindrically curved with an infinitely large radius of curvature along the long axis and a predetermined radius of curvature along the short axis thereof.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: February 15, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinji Ohama, Norio Shimizu, Shinichiro Nakagawa, Masatsugu Inoue, Kumio Fukuda
  • Patent number: 6018215
    Abstract: A field emission cold cathode in which all protrusion portions and corner portions around a gate electrode as well as corner portions facing an anode electrode are formed so as to be at obtuse angles or arc-shaped, whereby discharging of the gate electrode is suppressed to prevent breakdown of the device. A dummy electrode having more acute protrusion portions of the gate electrode is provided around the gate electrode, to further suppress discharging of the gate electrode.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: January 25, 2000
    Assignee: NEC Corporation
    Inventor: Hisashi Takemura
  • Patent number: 6008571
    Abstract: A color cathode ray tube has a shadow mask. The shadow mask is provided with a layer of a material having an average Z number below 20 on the side facing the phosphor screen. The layer is preferable deposited by means of electrodeposition.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: December 28, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Jacques J. Van Oekel, Michael J. M. J. Severens, Gerarda M. H. Timmermans, Maria C. Van Uden, Marcel Brouha
  • Patent number: 6008573
    Abstract: Area cathode device for generating free electrons in a first evacuated chamber comprises a back plate; a silica glass substrate peripherally sealed to the back plate to produce a second chamber; a gas contained in the second chamber; a layer of photo-sensitive material disposed on the surface of the substrate external to the first chamber; a cathode phosphor layer disposed between the back plate and the substrate; and a pair of electrodes facing each other from opposite sides of the second chamber for energizing the gas to generate a plasma for exciting the cathode phosphor layer to generate light energy for producing electron emissions from the photo-sensitive material.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: December 28, 1999
    Assignee: International Business Machines Corporation
    Inventors: John Beeteson, Andrew Ramsay Knox
  • Patent number: 6005344
    Abstract: An organic electroluminescent (EL) image display panel is disclosed which has a light transmissive electrically insulative support, a plurality of parallel laterally spaced light transmissive anode electrodes disposed over a surface of the light transmissive electrically insulative support, a plurality of laterally spaced electrically insulative pedestal strips formed over the anode electrodes, a set of laterally spaced electrically insulative barriers disposed over corresponding pedestal strips, such that portions of each pedestal strip extend laterally beyond each set of barriers, said barriers projecting upwardly over each of the pedestal strips, an organic EL medium overlying each of said anode electrodes, the support, the upper surfaces of corresponding barriers, and extending beyond each of the barriers, and a plurality of parallel laterally spaced cathode electrodes overlying said organic EL medium.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: December 21, 1999
    Assignee: Eastman Kodak Company
    Inventor: Paul J. Fleming