Patents Examined by Dalei Dong
  • Patent number: 7494288
    Abstract: The present invention is provided for fusion splicing optical fibers with low splice loss even when a shape of a discharge beam for the splicing is distorted. In the present invention, a preliminary discharge is performed with the optical fibers outside a discharge area and an image of the discharge beam thereof is picked up. Based on this image, brightness distributions of the discharge beam are estimated on a plurality of lines in a Z direction that are set in different positions in an X direction, and a discharge center of the beam is found from the plurality of brightness distributions. Then, the abutment portion of the optical fibers is positioned at the discharge center, and a main discharge is performed so as to fusion splice the distal ends of the optical fibers.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: February 24, 2009
    Assignee: Fujikura Ltd.
    Inventors: Koji Ozawa, Hiroyuki Taya
  • Patent number: 7247072
    Abstract: An image display apparatus includes an envelope which has a front substrate and a rear substrate opposed to each other and individually having peripheral edge portions sealed together. A sealed portion is sealed by a sealing member. the sealing member has electrical conductivity and melts when supplied with current. After the sealing member in the sealed portion is supplied with current and melted during manufacture, the current supply is stopped to cool and solidify the sealing member, whereupon the respective peripheral edge portions of the front substrate and the rear substrate are selected together.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: July 24, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Yokota, Takashi Enomoto, Takashi Nishimura, Akiyoshi Yamada, Shouichi Yokoyama
  • Patent number: 7210979
    Abstract: Provided are a producing apparatus and a producing process which make it possible to obtain effectively an organic EL display device capable of suppressing the generation of dark spots for a long time even in a high temperature environment. Therefore, an apparatus for producing an organic EL display device comprises a first unit for carrying a supporting substrate in, a second unit for heating at least the supporting substrate before forming an organic luminescence medium, thereby performing a dehydration treatment, a third unit for forming the organic luminescence medium and an upper element, and a fourth unit for sealing the periphery of the apparatus with a sealing member, wherein the first unit is arranged between the second unit and the third unit, a first carrying device is set up in the first unit, and a second carrying device is arranged between the third unit and the fourth unit.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: May 1, 2007
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshio Sakai, Mitsuru Eida, Hiroshi Tokailin
  • Patent number: 7208863
    Abstract: A light emitting OLED apparatus including a microcavity OLED device having a broad-band light emitting organic EL element and configured to have angular-dependent narrow-band light emission, and a patterned light-integrating element provided over a portion of a light emitting region of the microcavity device, wherein the light-integrating element integrates the angular-dependent narrow-band emission from different angles from the microcavity OLED device to form an integrated light emission with decreased angular dependence in accordance with the pattern of the light-integrating element, and the apparatus maintains relatively angular-dependent emission in light emitting regions of the microcavity device not provided with the light-integrating element.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: April 24, 2007
    Assignee: Eastman Kodak Company
    Inventor: David R. Strip
  • Patent number: 7201627
    Abstract: A method for manufacturing an ultrafine carbon fiber of the present invention has several steps as follows. In the first step, a semiconductor film is formed over a surface having insulative. In the second step, a first treatment is performed so that a metal element or a silicide of the metal element is segregated on a crystal grain boundary of the semiconductor film after adding the metal element in the semiconductor film. In the third step, a second treatment is performed so that an ultrafine carbon fiber on the surface of the metal element or the silicide of the metal element is formed.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: April 10, 2007
    Assignee: Semiconductor Energy Laboratory, Co., Ltd.
    Inventor: Hideto Ohnuma
  • Patent number: 7196459
    Abstract: A light emitting assembly includes a metal substrate for dissipating heat from the assembly. The metal substrate includes an electrically insulating layer or coating on at least one side. Circuit traces are applied to the electrically insulating layer using either thick or thin film techniques. At least the ends of the circuit traces include a metallic section to which leads of light emitting elements are soldered or wire-bonded. A metallic section is provided adjacent the light emitting element to transfer heat to the underlying substrate and/or to reflect light from the element away from the substrate. A clear finish retards tarnishing of the reflecting metallic section.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: March 27, 2007
    Assignee: International Resistive Co. of Texas, L.P.
    Inventor: Thomas M. Morris
  • Patent number: 7193358
    Abstract: The light distribution pattern for a vehicle having a predetermined horizontal cut-off line section at the top portion on one side of the vertical central line and an oblique cut-off line section whose central line side is lowered in another side. The light distribution pattern of the light source is formed by arranging a plurality of semiconductor light emitting devices with a configuration almost the same shape as the light distribution pattern for a vehicle. The semiconductor light emitting device has a luminance surface whose configuration is almost the same shape as the light distribution pattern for a vehicle. Further, the light source comprising the semiconductor light emitting device includes a fluorescent material whose excitation source is the emission from the nitride semiconductor device and a part of region of the fluorescent material emits light with higher luminance or higher color rendering properties compared with the other regions.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: March 20, 2007
    Assignee: Nichia Corporation
    Inventors: Motokazu Yamada, Takahiro Naitou
  • Patent number: 7192326
    Abstract: The present invention provides a method for manufacturing a light-emitting element that can be driven with low voltage or utilizes current more efficiently without damaging an organic compound, and a light-emitting element formed by the method. According to the present invention, a rubbing treatment is performed on a surface of an electrode on which an organic layer is formed so as to control a molecular arrangement of an organic compound included in the organic layer. A second electrode is formed over the organic compound.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: March 20, 2007
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tsunenori Suzuki, Ryoji Nomura, Satoshi Seo
  • Patent number: 7187120
    Abstract: A method of manufacturing an organic electroluminescent display panel includes the steps of: forming first electrodes on the substrate; forming organic layers by deposition; forming different light emitting layers for different luminous colors in desired areas; and forming second electrodes; wherein the organic layers are formed by an angle deposition method which performs deposition at more than a predetermined angle to the normal of the substrate.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: March 6, 2007
    Assignee: Tohoku Pioneer Corporation
    Inventors: Isamu Ohshita, Ryuji Murayama
  • Patent number: 7183710
    Abstract: A plasma display panel with reinforcing electrodes arranged at both ends of discharge cells along a direction address electrodes are formed and coupled to display electrodes. The reinforcing electrodes may comprise carbon-based material such as carbon nanotubes or graphite, and they may be stacked in two or more layers and covered with a dielectric layer and a protective layer. The dielectric layer may be interposed between the reinforcing electrodes and the display electrodes. The dielectric layer may expose the reinforcing electrodes so that the protective layer covers the reinforcing electrodes. A portion of the protective layer corresponding to the reinforcing electrodes has a surface roughness of about 300 nm to about 700 nm.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: February 27, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jeong-Chull Ahn, Seung-Hyun Son
  • Patent number: 7183704
    Abstract: A flat-type fluorescent lamp device includes first and second substrates facing each other, a plurality of first electrodes on the first substrate disposed along a first direction, each first electrode having protrusions extending from both sides of the first electrode along the first direction, a plurality of second electrodes on the first substrate, the second electrodes each having concave portions that correspond to the protrusions of the first electrode and convex portions that correspond to regions between the protrusions of the first electrode, a first fluorescent layer on an entire surface of the first substrate including the first and second electrodes, and a second fluorescent layer on the second substrate.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: February 27, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jae Bum Kim, Won Jong Lee, Sa Kyun Rha
  • Patent number: 7179147
    Abstract: An electroluminescent element which is superior in luminescence properties and lifetime can be provided by forming a thin film with high controllability according to the invention. An electroluminescent layer is formed over a first electrode by applying a current density of from 0.4 to 1.5 mA/cm2 for from 0.8 to 3.0 seconds to a first electrode of the electroluminescent element in accordance with the fact that an electrolytic polymerization film can be formed over the surface of the electrode uniformly by keeping a current density and time for applying the current to the electrode within a predetermined range during electrolytic polymerization especially when the electrolytic polymerization film is required to be a thin film.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: February 20, 2007
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takako Takasu, Satoshi Seo, Ryoji Nomura
  • Patent number: 7175493
    Abstract: A plasma display panel capable of realizing improvement in the characteristics thereof, such as lower discharge voltage, more stable discharge, higher luminance, higher efficiency, and longer life. During a step of sealing the periphery of substrates or before this sealing step, impurity gas other then inert gas is adsorbed by phosphor layers. The impurity gas is released into discharge gas and the impurity is added to the discharge gas in a controlled manner while the panel is lit. This method can realize improvement in characteristics, such as lower discharge voltage, higher luminance, higher efficiency, and longer life.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: February 13, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Nishimura, Koji Akiyama, Kanako Miyashita, Koji Aoto, Keiji Horikawa, Masaaki Yamauchi
  • Patent number: 7173365
    Abstract: A field emission display. Gate electrodes are formed in a predetermined pattern on a first substrate. An insulation layer is formed on the first substrate covering the gate electrodes. Cathode electrodes are formed in a predetermined pattern on the insulation layer. Emitters are provided electrically contacting the cathode electrodes. A second substrate is provided opposing the first substrate with a predetermined gap therebetween. The first substrate and the second substrate form a vacuum container. An anode electrode is formed on a surface of the second substrate opposing the first substrate. Phosphor layers are formed in a predetermined pattern on the anode electrode. Portions of the cathode electrodes are removed to form emitter-receiving sections. Fences are formed between the emitter-receiving sections, one of the emitters being provided in each of the emitter-receiving sections electrically contacting the cathode electrodes.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: February 6, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chun-Gyoo Lee, Sang-Jo Lee, Byong-Gon Lee, Sang-Hyuck Ahn, Tae-Sik Oh, Jong-Min Kim
  • Patent number: 7173370
    Abstract: A hole transporting region made of a hole transporting material, an electron transporting region made of an electron transporting material, and a mixed region (light emitting region) in which both the hole transporting material and the electron transporting material are mixed and which is doped with a triplet light emitting material for red color are provided in an organic compound film, whereby interfaces between respective layers which exist in a conventional lamination structure are eliminated, and respective functions of hole transportation, electron transportation, and light emission are exhibited. In accordance with the above-mentioned method, the organic light emitting element for red color can be obtained in which power consumption is low and a life thereof is long. Thus, the display device and the electric device are manufactured by using the organic light emitting element.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: February 6, 2007
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Shunpei Yamazaki
  • Patent number: 7166010
    Abstract: Organic electroluminescent device can be formed with multiple layers including an electrode, an emission layer, and a buffer layer. The emission layer includes a light emitting material. The buffer layer is disposed between and in electrical communication with the electrode and the emission layer and includes a triarylamine hole transport material and an electron acceptor material. The buffer layer optionally includes one or more of a) a polymeric binder, b) a color converting material, and c) light scattering particles. The buffer layer can also be formed using a polymeric hole transport material having a plurality of triarylamine moieties.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: January 23, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Sergey A. Lamansky, Manoj Nirmal, Fred B. McCormick, Ralph R. Roberts, John P. Baetzold, Todd D. Jones
  • Patent number: 7164232
    Abstract: An arc discharge metal halide lamp having a discharge chamber with visible light permeable walls bounding a discharge region through which walls a pair of electrode assemblies are supported with interior ends thereof positioned in the discharge region spaced apart from one another. These electrode assemblies each also extend through a corresponding capillary tube affixed to the walls to have exterior ends thereof positioned outside the arc discharge chamber. At least one of these electrode assemblies comprises an electrode discharge structure with a discharge region shaft extending into the capillary tube corresponding thereto. A discharge region shaft extends outwardly in that corresponding capillary tube to be in direct contact with an interconnection shaft extending outside of that corresponding capillary tube to provide an exterior end of this electrode assembly, and which is in direct contact with a sealing cap over the end of the tube.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: January 16, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nanu Brates, Huiling Zhu, Jakob Maya
  • Patent number: 7160169
    Abstract: A method of forming carbon nanotube emitters and a method of manufacturing an FED using such carbon nanotube emitters includes: forming a carbon nanotube layer on a substrate on which a plurality of electrodes are formed, coating a photoresist on the carbon nanotube layer, patterning the photoresist such that the photoresist only remains above the electrodes, removing an exposed portion of the carbon nanotube layer by etching using the patterned photoresist as a etch mask, and removing the photoresist pattern and forming the carbon nanotube emitters on the electrodes.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: January 9, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Shang-Hyeun Park
  • Patent number: 7154226
    Abstract: A capped electric lamp has a light-transmitting lamp vessel accommodating an electrical element and a lamp cap provided with a projecting contact pin (4). An indentation (15) is formed in the contact pin (4) to fix the current-supply conductor (5). According to the invention, the indentation (15) comprises a weakening portion (16) for weakening the current-supply conductor (5) during the manufacture of the electric lamp and comprises a fixation portion (18) for fixing the current-supply conductor (5) in the contact pin (4), wherein said weakening and fixation portion are substantially parallel to each other. Preferably, the indentation (15) comprises a narrow portion (17) between the weakening portion (16) and the fixation portion (18) which is relatively narrow compared with the weakening portion (16) and the fixation portion (18).
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: December 26, 2006
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventors: Allard Arend Boomkens, Frank Gerardus Cornelis De Bot, Diederik Ten Horn
  • Patent number: 7144290
    Abstract: The invention relates to a new design of discharge vessel for a discharge lamp, in which dielectrically impeded discharges are to be generated. In this case, a discharge vessel plate 1, 9 is, as it were, of two-fold design, specifically as a first discharge vessel plate 1 with an external electrode set and, in addition, as a stabilizing plate 9 outside the first discharge vessel plate 1.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: December 5, 2006
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Lothar Hitzschke, Frank Vollkommer