Patents Assigned to Nichias Corporation
  • Publication number: 20040013941
    Abstract: Disclosed is a positive electrode active material for a nonaqueous electrolyte secondary battery having at least a lithium-transition metal composite oxide of the spinel structure,
    Type: Application
    Filed: May 19, 2003
    Publication date: January 22, 2004
    Applicant: Nichia Corporation
    Inventors: Kenichi Kobayashi, Yoko Nakano
  • Patent number: 6673269
    Abstract: A phosphor material of the chemical composition formula (Sr1−x−y, Mgx, Cay)TiO3:Pr,Al, where the value of x+y is in the range 0.001 to 0.05. Another phosphor material has the chemical composition formula SrTiO3:Pr,Al, in which the surfaces of phosphor particles are diffused with a diffusing agent containing at least one of Be, Mg, Ca, Sr, and Ba. Still another phosphor material has the chemical composition formula SrTiO3:Pr,Al, where Sr/Ti molar ratio is 0.88 to 0.99.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: January 6, 2004
    Assignees: Nichia Corporation, Futaba Corporation
    Inventors: Tomokazu Suzuki, Takuya Hamada, Kazunori Kitagawa, Hitoshi Toki
  • Publication number: 20030230253
    Abstract: A cooling apparatus of an internal combustion engine includes an insert that is deformable, and a surface of the insert opposing a cylinder bore wall is close to the cylinder bore wall after the insert is inserted into a water jacket. A cooling apparatus of an internal combustion engine includes a cylinder block having a water jacket in which an insert is disposed; the cylinder block is machined so that a water hole or an aperture having a size corresponding to a size of the insert is formed in the cylinder block and the insert can be inserted into the water jacket through the water hole or the aperture.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 18, 2003
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISAN KOGYO KABUSHIKI KAISHA, NICHIAS CORPORATION
    Inventors: Takashi Matsutani, Yoshikazu Shinpo, Takanori Nakada, Yasuki Hashimoto, Makoto Hatano, Katsunori Ueda
  • Publication number: 20030230254
    Abstract: A cooling apparatus of an internal combustion engine includes a closed deck-type cylinder block and an insert. The cylinder block includes a water jacket and an upper deck including a water hole formed therein. The insert is disposed in the water jacket and inserted into the water jacket through the water hole. The insert is fixed relative to the cylinder block at a water hole portion such that the insert is fixed in position in a flow direction of the cooling water. A stopper for preventing the insert from moving downstream in a flow direction of the cooling water may be formed, and the insert engages the stopper such that the insert is fixed in position in the flow direction of the cooling water.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 18, 2003
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISAN KOGYO KABUSHIKI KAISHA, NICHIAS CORPORATION
    Inventors: Takashi Matsutani, Yoshikazu Shinpo, Takanori Nakada, Yasuki Hashimoto, Makoto Hatano, Katsunori Ueda
  • Patent number: 6660187
    Abstract: A phosphor for use with low speed electron beams is characterized by the following general composition formula. (Y, Ce)2O3.nSiO2 0.4≦n<1.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: December 9, 2003
    Assignees: Nichia Corporation, Futaba Corporation
    Inventors: Yasunobu Noguchi, Kiyoshi Tamura
  • Patent number: 6657382
    Abstract: A light emitting device and display apparatus using a plurality of light emitting devices can drastically reduce contrast loss due to light from an external source. The light emitting device has (a) light emitting chip(s) and a first layer covering the light emitting chip(s). A second layer including a light scattering material Is provided at least over the first layer, and the surface of second layer has a plurality of protrusions which follow the topology of the light scattering material. The display apparatus is formed by disposing these light emitting devices In an array on a substrate.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: December 2, 2003
    Assignee: Nichia Corporation
    Inventors: Yoshifumi Nagai, Yuichi Fujiwara, Kunihiro Izuno
  • Patent number: 6656615
    Abstract: The present invention refers to an ammonobasic method for preparing a gallium-containing nitride crystal, in which gallium-containing feedstock is crystallized on at least one crystallization seed in the presence of an alkali metal-containing component in a supercritical nitrogen-containing solvent. The method can provide monocrystalline gallium-containing nitride crystals having a very high quality.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: December 2, 2003
    Assignees: Nichia Corporation, Ammono Sp. z o.o.
    Inventors: Robert Tomasz Dwili&nacute;ski, Roman Marek Doradzi&nacute;ski, Jerzy Garczy&nacute;ski, Leszek Piotr Sierzputowski, Yasuo Kanbara
  • Patent number: 6657234
    Abstract: An nitride semiconductor device for the improvement of lower operational voltage or increased emitting output, comprises an active layer comprising quantum well layer or layers and barrier layer or layers between n-type nitride. semiconductor layers and p-type nitride semiconductor layers, wherein said quantum layer in said active layer comprises InxGa1−xN (0<x<1) having a peak wavelength of 450 to 540 nm and said active layer comprises laminating layers of 9 to 13, in which at most 3 layers from the side of said n-type nitride semiconductor layers are doped with an n-type impurity selected from the group consisting of Si, Ge and Sn in a range of 5×1016 to 2×1018/cm3.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: December 2, 2003
    Assignee: Nichia Corporation
    Inventor: Koji Tanizawa
  • Publication number: 20030214818
    Abstract: An surface light emitting device that is capable of emitting light of high luminance with higher uniformity is disclosed.
    Type: Application
    Filed: July 30, 2003
    Publication date: November 20, 2003
    Applicant: Nichia Corporation
    Inventors: Munetsugu Ehara, Hitoshi Nojiri, Eiji Nakanishi, Koichi Kunikata
  • Publication number: 20030205736
    Abstract: In the nitride semiconductor device of the present invention, an active layer 12 is sandwiched between a p-type nitride semiconductor layer 11 and an n-type nitride semiconductor layer 13. The active layer 12 has, at least, a barrier layer 2a having an n-type impurity; a well layer 1a made of a nitride semiconductor that includes In; and a barrier layer 2c that has a p-type impurity, or that has been grown without being doped. An appropriate injection of carriers into the active layer 12 becomes possible by arranging the barrier layer 2c nearest to the p-type layer side.
    Type: Application
    Filed: May 22, 2003
    Publication date: November 6, 2003
    Applicant: Nichia Corporation.
    Inventor: Tokuya Kozaki
  • Publication number: 20030182937
    Abstract: A structure of an exhaust manifold branch collecting portion includes a double collecting pipe 21 for collecting a plurality of exhaust openings 11A, 17A. The double collecting pipe 21 is comprised of an inner pipe 21-1 and an outer pipe 21-2, which are connected integrally to each other. In a space formed between the inner pipe 21-1, the outer pipe 21-2, and a ring-shaped stainless steel cushion member 22-2, a tubular cushion member 22-1, which is thermally expanded and foamed, is arranged as a restricted cushion structure.
    Type: Application
    Filed: March 25, 2003
    Publication date: October 2, 2003
    Applicants: YUMEX CORPORATION, NICHIAS CORPORATION
    Inventors: Yasuhiko Fukumoto, Katsumi Tateiwa, Takashi Yasuda, Kazuya Tominaga, Hideaki Shimamoto, Hideaki Madono, Syuuichi Ishiwa
  • Patent number: 6627974
    Abstract: A nitride semiconductor substrate including (a) a supporting substrate, (b) a first nitride semiconductor layer having a periodical T-shaped cross-section, having grown from periodically arranged stripe-like, grid-like or island-like portions on the supporting substrate, and (c) a second nitride semiconductor substrate covering said supporting substrate, having grown from the top and side surfaces of said first nitride semiconductor layer, wherein a cavity is formed under the second nitride semiconductor layer. A protective layer having a periodically arranged stripe-like, grid-like or island-like apertures is formed on the supporting substrate. The first nitride semiconductor layer is laterally grown from the exposed portion of the substrate. The growth is stopped before the first nitride semiconductor layer covers the supporting substrate. Thus, the first nitride semiconductor layer has a periodical T-shaped cross-section.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: September 30, 2003
    Assignee: Nichia Corporation
    Inventors: Tokuya Kozaki, Hiroyuki Kiyoku, Kazuyuki Chocho, Hitoshi Maegawa
  • Patent number: 6627520
    Abstract: A nitride semiconductor substrate including (a) a supporting substrate, (b) a first nitride semiconductor layer having a periodical T-shaped cross-section, having grown from periodically arranged stripe-like, grid-like or island-like portions on the supporting substrate, and (c) a second nitride semiconductor substrate covering said supporting substrate, having grown from the top and side surfaces of said first nitride semiconductor layer, wherein a cavity is formed under the second nitride semiconductor layer. A protective layer having a periodically arranged stripe-like, grid-like or island-like apertures is formed on the supporting substrate. The first nitride semiconductor layer is laterally grown from the exposed portion of the substrate. The growth is stopped before the first nitride semiconductor layer covers the supporting substrate. Thus, the first nitride semiconductor layer has a periodical T-shaped cross-section.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: September 30, 2003
    Assignee: Nichia Corporation
    Inventors: Tokuya Kozaki, Hiroyuki Kiyoku, Kazuyuki Chocho, Hitoshi Maegawa
  • Publication number: 20030168720
    Abstract: To provide a light emitting device having a high reliability wherein no resin burrs occur, The semiconductor device comprises a semiconductor element, a package having a recess for housing the semiconductor element and a mold member for sealing the semiconductor element in the recess and the package comprises lead electrodes and a package support part supporting the lead electrodes so that main surfaces of the tip portions of the lead electrodes are exposed from the bottom surface of the recess.
    Type: Application
    Filed: December 13, 2002
    Publication date: September 11, 2003
    Applicant: NICHIA CORPORATION
    Inventor: Kazuhiro Kamada
  • Patent number: 6617781
    Abstract: A red light emitting afterglow photoluminescence phosphor is a rare earth oxysulfide phosphor activated by Europium, which chemical formula is as follows: Ln2O2S:Eux,My 0.00001≦x≦0.5 0.00001≦y≦0.3 wherein Ln is at least one selected from the group consisting of Y, La, Gd and Lu; M is a coactivator which is at least one selected from the group consisting of Mg, Ti, Nb, Ta and Ga in the chemical formula.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: September 9, 2003
    Assignee: Nichia Corporation
    Inventors: Yoshinori Murazaki, Kiyotaka Arai
  • Publication number: 20030160232
    Abstract: A nitride semiconductor substrate including (a) a supporting substrate, (b) a first nitride semiconductor layer having a periodical T-shaped cross-section, having grown from periodically arranged stripe-like, grid-like or island-like portions on the supporting substrate, and (c) a second nitride semiconductor substrate covering said supporting substrate, having grown from the top and side surfaces of said first nitride semiconductor layer, wherein a cavity is formed under the second nitride semiconductor layer.
    Type: Application
    Filed: March 18, 2003
    Publication date: August 28, 2003
    Applicant: Nichia Corporation
    Inventors: Tokuya Kozaki, Hiroyuki Kiyoku, Kazuyuki Chocho, Hitoshi Maegawa
  • Patent number: D482337
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: November 18, 2003
    Assignee: Nichia Corporation
    Inventor: Kazuhiro Kamada
  • Patent number: D482666
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: November 25, 2003
    Assignee: Nichia Corporation
    Inventor: Kazuhiro Kamada
  • Patent number: D486801
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: February 17, 2004
    Assignee: Nichia Corporation
    Inventor: Ryoma Suenaga
  • Patent number: D487254
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: March 2, 2004
    Assignee: Nichia Corporation
    Inventor: Ryoma Suenaga