Patents Examined by Todd Reed Hopper
  • Patent number: 6225741
    Abstract: An EL panel package film comprises, for example, a PCTFE film or a PET film having a moistureproof layer. This EL panel package film has irregularities of 3 &mgr;m or more in arithmetic average roughness (Ra) and 10 &mgr;m or more in maximum height (Ry) specified in JIS G 0601 on at least one of its surfaces. The EL panel is configured by using the EL panel package film having such surface irregularities as a package film on at least a light emitting surface side. Oscillations produced due to the polarity inversion of an alternate voltage applied to the EL panel are absorbed and dispersed by the irregularities formed on the package film surface. A LCD module has such an EL panel as the backlight. Noise from the LCD cell surface is reduced.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: May 1, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsuo Nakamura, Yoichiro Yabe
  • Patent number: 6218781
    Abstract: A metal halide discharge lamp having a bulb which contains a fill including an ignition gas, mercury, a halogen, lithium, indium, thallium and tin, and which is devoid of a rare earth element. Such fill serves to lengthen the service life of the lamp. The lamp is especially suitable for effect lighting.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: April 17, 2001
    Assignee: Patent-Treuhand-Gesellschaft für Elektrische Glühlampen mbH
    Inventors: Andreas Genz, Hans-Werner Gölling
  • Patent number: 6218774
    Abstract: A photo-luminescent/electro-luminescent display screen includes an electro-luminescent display, a photo-luminescent layer optically coupled to the electro-luminescent display. The photo-luminescent layer includes a transparent layer coated with an amorphous silica with fluorescence behavior. The screen further includes liquid crystal light valves which have a polarizer layer, a transparent glass substrate, a set of transparent electrodes which are formed by indium titanium oxide, a liquid crystal layer, a common transparent electrode formed by indium titanium oxide and a second polarizer layer.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: April 17, 2001
    Inventor: Edward J. A. Pope
  • Patent number: 6215235
    Abstract: A spark plug for an internal combustion engine comprises a noble metallic firing tip laser welded on the opposing surface of either a central electrode or a grounded electrode. A fused junction layer, formed between the noble metallic firing tip and the base electrode member, contains 40˜70 wt % noble metallic firing tip component. The noble metallic firing tip has a non-fused portion axially extending by a length “L”, where 0.2 mm ≦L≦0.7 mm. The fused junction layer axially extends by a length “M”, where 0.2 mm ≦M≦0.7 mm. And, the relationship B≧1.3A is established when “A” represents the diameter of the noble metallic firing tip and “B” represents the diameter of a contact area at the boundary between the fused junction layer and the base electrode member, where 0.3 mm ≦A≦0.6 mm.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: April 10, 2001
    Assignee: Denso Corporation
    Inventor: Hironori Osamura
  • Patent number: 6215237
    Abstract: A shadow mask is provided in an envelope of a color cathode ray tube. The shadow mask includes a mask body having a number of electron beam apertures, and a mask frame having side walls equipped on the peripheral portion of the mask body. The side walls of the mask frame includes a pair of long side walls extending in parallel with the long axis X and a pair of short side walls extending in parallel with the short axis Y. Beads and are respectively formed on the long side walls and the short side walls. The length of each bead of the long side wall along the long axis is set in a range of 55% to 80% of the length of the long side walls along the long axis, and a width of the bead in the tube axis direction is set in a rage of 40% to 75% of the maximum width of the long side walls in the tube axis direction.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: April 10, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shigeru Tsuchida, Takashi Murai
  • Patent number: 6208073
    Abstract: A smart light emitting diode cluster and system includes a central processing unit (CPU) and a plurality of LED cluster strings, each comprising a plurality of LED cluster connected in series. Each LED cluster includes an LED drive circuit and a plurality of LEDs. The CPU receives external input image signal, and then desired control signal and image data are sent to the LED cluster strings by appropriate processing. The control signal is used to switch the LEDs in the cluster to generate desired image and related color variation. The control signal and image data are transferred to the next LED cluster by the present LED drive circuit. In this manner, the control signal and image data are progressively transferred from the first to the last cluster so that a whole image with color variation can be displayed by all the LEDs in the system.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: March 27, 2001
    Assignee: Opto Tech Corp.
    Inventors: Hung-Tung Wang, Shun-Chih Chen, Chih-Yuan Yen, Chun-Fang Hsiao, Fang-Shih Chuang, Chien-Chen Hung
  • Patent number: 6204597
    Abstract: A field emission device (110, 210, 310, 410) includes an electron emitter (124), a first dielectric focusing layer (122) defining a first aperture (127), and a second dielectric focusing layer (123) defining a second aperture (133). Second dielectric focusing layer (123) is disposed on first dielectric focusing layer (122). The dielectric constant of second dielectric focusing layer (123) is less than the dielectric constant of first dielectric focusing layer (122). During the operation of field emission device (110, 210, 310), electron emitter (124) emits an electron beam (134), which is focused as it travels through first aperture (127) and then through second aperture (133).
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: March 20, 2001
    Assignee: Motorola, Inc.
    Inventors: Chenggang Xie, John Song, Sung P. Pack
  • Patent number: 6203392
    Abstract: This invention consists of an improved design and assembly process the for manufacture of a single ended quartz (SEQ) lamp having three-part leads and a prefocus base for projection applications. This invention consists of a much simpler two-pin prefocus ceramic base SEQ lamp design that is made with fewer parts and is much easier and faster to assemble to enable much reduced labor and cost. Also, the ceramic base is smaller and exposes more of the quartz lamp seal to the surroundings to enable more effective cooling during lamp operation to prevent lamp failures from overheated seals. Also, the ceramic base is designed for quick assembly with the coil correctly focused to the base.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: March 20, 2001
    Assignee: General Electric Company
    Inventors: Bernard W. Rachel, Donald E. Hatfield
  • Patent number: 6201343
    Abstract: An electron-emitting device contains an emitter electrode (12), a group of sets of electron-emitting elements (24), a group of control electrodes (28), and a focusing system (37) for focusing electrons emitted by the electron-emissive elements. The sets of electron-emissive elements are arranged generally in a line extending in a specified direction. Each control electrode has a main portion (30) and a gate portion (32). the electron-emissive elements are exposed through gate openings (36) in the gate portion. The main portion of each control electrode crosses over the emitter electrode and has a large control opening (34) which laterally circumscribes one of the sets of electron-emissive elements. The focusing system has a group of focus openings (40) located respectively above the control openings. Each control opening is largely centered on, or/and is no more than 50% as large as, the corresponding focus opening in the specified direction.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: March 13, 2001
    Assignee: Candescent Technologies Corporation
    Inventors: Christopher J. Spindt, Stephanie J. Oberg, Duane A. Haven, Roger W. Barton, Arthur J. Learn, Victoria A. Bascom
  • Patent number: 6201347
    Abstract: The lamp is provided with a metal holder (21) having an opening (21a) and resilient body (20) which fastens the holder in a tube (15) which is in communication with the discharge space. A first portion (20a) of the resilient body (20) is clamped in the opening (21a) of the holder (21). A second folded portion (21b) is clamped in inside the tube (15).
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: March 13, 2001
    Assignee: U.S. Philips Corporation
    Inventor: Marcellus H. Smulders
  • Patent number: 6198218
    Abstract: An organic LED is provided that can stably and efficiently emit light as a result of a heat resistant hole drift layer. The organic LED can include, in order, a substrate, a hole injection electrode layer, a hole drift layer, an organic light emitting layer, an electron drift layer and an electron injection electrode layer. The hole drift layer comprises a diamond film with a boron concentration of between about 1.0×1019 and about 1.0×1021/cm3. An optically transparent layer can be formed on the electron injection electrode layer.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: March 6, 2001
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Koji Kobashi, Yoshihiro Yokota, Takeshi Tachibana, Kazushi Hayashi, Maki Hamaguchi, Katsumi Yoshino
  • Patent number: 6198213
    Abstract: A glass envelope for a light-emitting device, a device embodying the envelope, and the method of making the glass envelope by laminating two sheets of glass, one sheet having a continuous channel formed therein, and the other sheet having one or more optical elements formed therein.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: March 6, 2001
    Assignee: Corning Incorporated
    Inventor: Jackson P. Trentelman
  • Patent number: 6198216
    Abstract: An electroluminescent lamp is presented, wherein at least one of the phosphor layer or the dielectric layer comprises a polyureasilazane polymer. The polyureasilazane may be added to the fluoropolymer resin of the phosphor layer or the dielectric layer, and/or may be used to coat the phosphor particles within the phosphor layer or the inorganic filler particles within the dielectric layer. Use of polyureasilazanes confers enhanced adhesion and environmental resistance.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: March 6, 2001
    Assignee: World Properties, Inc.
    Inventors: Bruce G. Kosa, Allen F. Horn, III, Candace G. Socha
  • Patent number: 6194831
    Abstract: The present case relates to a gas discharge display, represented with a plasma display panel(PDP), for displaying an image by displaying gradation using a discharge characteristic of a particular gas. Of a background art gas discharge display for displaying an image by means of a gas discharge having transparent front, and back substrates supported by barrier ribs of a fixed length from inside thereof, electrodes, dielectric, and protective film provided inside of the front, and back substrates, and Penning gas of two gases (Ne+Xe, He+Xe, and etc.) or Penning gas of three gases (Ne+Xe+Ar, He+Xe+Ar, Ne+Xe+He) filled in spaces of the two protective films as a discharge gas, a Penning gas of four gases (Ne+He+Xe+Ar) is used in the gas discharge display for improving a luminance.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: February 27, 2001
    Assignee: LG Electronics Inc.
    Inventors: Hun Gun Park, Seok Hyun Lee, Won Tae Kim, Hong Ju Ha, Jae Hwa Ryu
  • Patent number: 6194830
    Abstract: A getter (74) is situated in an auxiliary compartment (72) of a hollow structure (40-46 and 76) having a larger main compartment (70). The auxiliary compartment is situated outside the main compartment and is connected to the main compartment so that the two compartments reach largely the same steady-state compartment pressure. The getter is activated by directing light energy locally through part of the hollow structure and onto the getter. The light energy is typically furnished by a laser beam (60). The getter, typically of the non-evaporable type, is usually inserted as a single piece of gettering material into the auxiliary compartment. The getter normally can be activated/re-activated multiple times in this manner, typically during sealing of different parts of the structure together.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: February 27, 2001
    Assignee: Candescent Technologies Corporation
    Inventors: Steven T. Cho, Igor L. Maslennikov, Christopher J. Curtin, Alfred S. Conte
  • Patent number: 6184618
    Abstract: The invention relates to a luminescent material of general formula (BaxSr1−x−yPby)2Mg(BO3)2 wherein 0≦x≦0.999, 0.0005<y<0.05. Luminescent materials of this general formula are very suitable for use in low pressure mercury discharge lamps for tanning purposes.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: February 6, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Thomas Jüstel, Hans Nikol, Cornelis R. Ronda, Johannes T. W. De Hair
  • Patent number: 6184616
    Abstract: There are disclosed a resistor whose life span is long and whose miniaturization can be implemented by restraining a short-circuit among a resistor pattern, an electron gun for a cathode-ray tube provided with the resistor and a method of manufacturing the resistor. In the resistor (2), the natrium concentration of overcoat glass (4) coated on a surface thereof and covering its resistance patterns (5) is set to less than 500 ppm, and the resistor 2 is manufactured in such a manner that at a time when the overcoat glass (4) is manufactured, after a process (S2) of crushing a glass cullet which is a raw material of the overcoat glass (4), the crushed glass powder is raised with pure water to thereby set the natrium concentration thereof to less than 500 ppm.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: February 6, 2001
    Assignee: Sony Corporation
    Inventors: Yasunobu Amano, Katsuyuki Yodokawa, Kazuo Kajiwara, Naruhiko Endo, Kazutaka Nakayama
  • Patent number: 6177763
    Abstract: An electrodeless lamp has a gas containing chamber with a first electrode and a second electrode, each surrounded by a dielectric, within the gas chamber and an AC source coupled between the first and second electrodes. In another aspect, the electrodeless lamp has a gas containing chamber with a dielectric chamber wall, a first electrode extending along the dielectric chamber wall outside of the gas containing chamber, a wound second electrode surrounded by a dielectric within the gas chamber, and an AC source coupled between the first and second electrodes.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: January 23, 2001
    Assignee: Resonance Limited
    Inventor: William H. Morrow
  • Patent number: 6175186
    Abstract: An organic electroluminescent element which is highly precise and minute, uniform in light emission, free from cross talk, resistant to external pressure, and further excellent in sealing properties and a process for producing the above element. The organic electroluminescent element 1 which is equipped, between a lower electrode 3 and a counter eletrode 4 each on a substrate 2, with an intervening organic layer 5 comprising a light-emitting layer, comprises an inter-insulator film 6 having a coefficient of water absorption of at most 0.1% in a non-light-emitting element portion; step portions 9 in the inter-insulator layer 6 which define the boundary between a light-emitting element portion and a non-light-emitting element portion and which comprise rising parts almost perpendicular to the surface of the lower electrode 3; and a sealing plate or a sealing lid 7 which is placed over the inter-insulator layer 6 and which is attached to the substrate 2 via an adhesive layer 8.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: January 16, 2001
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Masahide Matsuura, Mitsuru Eida, Chishio Hosokawa
  • Patent number: 6171164
    Abstract: A method of forming emitter tips for use in a field emission array is disclosed. The tips are formed by utilizing a polymer residue that forms during the dry etch sharpening step to hold the mask caps in place on the emitter tips. The residue polymer continues to support the mask caps as the tips are over-etched, enabling the tips to be etched past sharp without losing their shape and sharpness. The dry etch utilizes an etchant comprised of fluorine and chlorine gases. The mask caps and residue polymer are easily removed after etching by washing the wafers in a wash of deionized water, or Buffered Oxide Etch.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: January 9, 2001
    Assignee: Micron Technology, Inc.
    Inventor: Aaron R. Wilson