Patents by Inventor Masahiko Sano

Masahiko Sano has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8796721
    Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: August 5, 2014
    Assignee: Nichia Corporation
    Inventors: Isamu Niki, Motokazu Yamada, Masahiko Sano, Shuji Shioji
  • Patent number: 8686441
    Abstract: A semiconductor light emitting device includes first and second semiconductor layers, an active region, a transparent electrically-conducting layer 13, a reflecting structure 20, and a first electrode. The second semiconductor layer has a conductivity different from the first semiconductor layer. The active region is arranged between the first and second semiconductor layers. The transparent electrically-conducting layer 13 is arranged on or above the first semiconductor layer. The reflecting structure 20 is arranged on or above the transparent electrically-conducting layer 13. The first electrode is arranged on or above the reflecting structure 20, and electrically connected to the first semiconductor layer. The reflecting structure 20 includes at least a reflective layer 16. An intermediate layer 17 is interposed between the transparent electrically-conducting layer 13 and the reflecting structure 20.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: April 1, 2014
    Assignee: Nichia Corporation
    Inventors: Toshiaki Ogawa, Hisashi Kasai, Masahiko Sano
  • Publication number: 20140022718
    Abstract: A vacuum sealed package includes a package main body portion in which a first main body portion and a second main body portion are bonded via a hollow portion, and a getter material and an electronic device that are provided within the hollow portion, and in the state of the hollow portion being evacuated via a through-hole that brings the inside and the outside of the hollow portion into communication, the package main body portion is sealed with a sealing member, the getter material and the electronic device are connected to a first conductor pad and a second conductor pad, the first conductor pad is connected with a third conductor pad via a thermally conductive material, and the second conductor pad is electrically connected with a fourth conductor pad on a wiring substrate.
    Type: Application
    Filed: September 23, 2013
    Publication date: January 23, 2014
    Applicant: NEC CORPORATION
    Inventors: TAKAO YAMAZAKI, MASAHIKO SANO, SEIJI KURASHINA
  • Publication number: 20130291380
    Abstract: The present invention is: a package main body section having a hollow section; and an electronic device provided in the hollow section in the package main body section, in the package main body section, there being formed a through hole, through which the hollow section communicates with outside of the package main body section, and in the through hole, there being provided a sealing section in which a vicinity of the through hole is partly heated and a constituent material of the package main body section is melted to thereby block the through hole.
    Type: Application
    Filed: July 2, 2013
    Publication date: November 7, 2013
    Applicant: NEC CORPORATION
    Inventors: TAKAO YAMAZAKI, MASAHIKO SANO, SEIJI KURASHIMA, YOSHIMICHI SOGAWA
  • Patent number: 8525323
    Abstract: The present invention is: a package main body section having a hollow section; and an electronic device provided in the hollow section in the package main body section, in the package main body section, there being formed a through hole, through which the hollow section communicates with outside of the package main body section, and in the through hole, there being provided a sealing section in which a vicinity of the through hole is partly heated and a constituent material of the package main body section is melted to thereby block the through hole.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: September 3, 2013
    Assignee: NEC Corporation
    Inventors: Takao Yamazaki, Masahiko Sano, Seiji Kurashina, Yoshimichi Sogawa
  • Publication number: 20130183496
    Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 18, 2013
    Inventors: Isamu NIKI, Motokazu YAMADA, Masahiko SANO, Shuji SHIOJI
  • Publication number: 20130122620
    Abstract: Provided Is a method of forming a light converting layer capable of uniformly distributing fluorescent material particles, a method of manufacturing a light converting member capable of distributing fluorescent material particles, and a method of manufacturing a light emitting device capable of controlling color irregularities. The method of forming a light converting member comprising steps of, preparing fluorescent material particles, forming a bonding layer made of a resin on a base body; incorporating the fluorescent material particles in the bonding layer; and hardening the bonding layer.
    Type: Application
    Filed: July 21, 2011
    Publication date: May 16, 2013
    Inventors: Masatsugu Ichikawa, Masahiko Sano
  • Patent number: 8362516
    Abstract: An excellent light emitting element capable of improving problems caused by a material having high light-reflectivity and susceptible to electromigration, especially Al used for the electrode. FIG. 2A depicts semiconductor light emitting element having a first and second electrodes 20 and 30 disposed at a same surface side respectively on a first and second conductive type semiconductor layer 11 and 13. In the electrode disposing surface, the first electrode 20 comprises a first base part 23 and a first extended part 24 extending from the first base part, and a plurality of separated external connecting parts 31 of the second electrode 30 arranged side by side in extending direction of the first extended part.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: January 29, 2013
    Assignee: Nichia Corporation
    Inventors: Yoshiki Inoue, Masahiko Sano
  • Patent number: 8344402
    Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: January 1, 2013
    Assignee: Nichia Corporation
    Inventors: Isamu Niki, Motokazu Yamada, Masahiko Sano, Shuji Shioji
  • Patent number: 8344403
    Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: January 1, 2013
    Assignee: Nichia Corporation
    Inventors: Isamu Niki, Motokazu Yamada, Masahiko Sano, Shuji Shioji
  • Patent number: 8299486
    Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: October 30, 2012
    Assignee: Nichia Corporation
    Inventors: Isamu Niki, Motokazu Yamada, Masahiko Sano, Shuji Shioji
  • Publication number: 20120256221
    Abstract: A semiconductor light emitting device includes first and second semiconductor layers, an active region, a transparent electrically-conducting layer 13, a reflecting structure 20, and a first electrode. The second semiconductor layer has a conductivity different from the first semiconductor layer. The active region is arranged between the first and second semiconductor layers. The transparent electrically-conducting layer 13 is arranged on or above the first semiconductor layer. The reflecting structure 20 is arranged on or above the transparent electrically-conducting layer 13. The first electrode is arranged on or above the reflecting structure 20, and electrically connected to the first semiconductor layer. The reflecting structure 20 includes at least a reflective layer 16. An intermediate layer 17 is interposed between the transparent electrically-conducting layer 13 and the reflecting structure 20.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Inventors: Toshiaki Ogawa, Hisashi Kasai, Masahiko Sano
  • Patent number: 8227280
    Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: July 24, 2012
    Assignee: Nichia Corporation
    Inventors: Isamu Niki, Motokazu Yamada, Masahiko Sano, Shuji Shioji
  • Publication number: 20120181572
    Abstract: An excellent light emitting element capable of improving problems caused by a material having high light-reflectivity and susceptible to electromigration, especially Al used for the electrode. FIG. 2A depicts semiconductor light emitting element having a first and second electrodes 20 and 30 disposed at a same surface side respectively on a first and second conductive type semiconductor layer 11 and 13. In the electrode disposing surface, the first electrode 20 comprises a first base part 23 and a first extended part 24 extending from the first base part, and a plurality of separated external connecting parts 31 of the second electrode 30 arranged side by side in extending direction of the first extended part.
    Type: Application
    Filed: March 27, 2012
    Publication date: July 19, 2012
    Inventors: Yoshiki INOUE, Masahiko SANO
  • Publication number: 20120106085
    Abstract: A vacuum sealed package includes a package main body portion in which a first main body portion and a second main body portion are bonded via a hollow portion, and a getter material and an electronic device that are provided within the hollow portion, and in the state of the hollow portion being evacuated via a through-hole that brings the inside and the outside of the hollow portion into communication, the package main body portion is sealed with a sealing member, the getter material and the electronic device are connected to a first conductor pad and a second conductor pad, the first conductor pad is connected with a third conductor pad via a thermally conductive material, and the second conductor pad is electrically connected with a fourth conductor pad on a wiring substrate.
    Type: Application
    Filed: January 27, 2010
    Publication date: May 3, 2012
    Inventors: Takao Yamazaki, Masahiko Sano, Seiji Kurashina
  • Patent number: 8168996
    Abstract: An excellent light emitting element capable of improving problems caused by a material having high light-reflectivity and susceptible to electromigration, especially Al used for the electrode. FIG. 2A depicts semiconductor light emitting element having a first and second electrodes 20 and 30 disposed at a same surface side respectively on a first and second conductive type semiconductor layer 11 and 13. In the electrode disposing surface, the first electrode 20 comprises a first base part 23 and a first extended part 24 extending from the first base part, and a plurality of separated external connecting parts 31 of the second electrode 30 arranged side by side in extending direction of the first extended part.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: May 1, 2012
    Assignee: Nichia Corporation
    Inventors: Yoshiki Inoue, Masahiko Sano
  • Patent number: 8148744
    Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: April 3, 2012
    Assignee: Nichia Corporation
    Inventors: Isamu Niki, Motokazu Yamada, Masahiko Sano, Shuji Shioji
  • Patent number: 8120057
    Abstract: The present invention provides a light emitting element capable or realizing at least one of lower resistance, higher output, higher power efficiency (1 m/W), higher mass productivity and lower cost of the element using a light transmissive electrode for an electrode arranged exterior to the light emitting structure. A semiconductor light emitting element includes a light emitting section, a first electrode and a second electrode on a semiconductor structure including first and second conductive type semiconductor layers, the first and the second electrodes respectively including at least two layers of a first layer of a light transmissive conductive film conducting to the first and the second conductive type semiconductor and a second layer arranged so as to conduct with the first layer. First and second light transmissive insulating films are respectively arranged so as to overlap at least one part of the first and the second layers.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: February 21, 2012
    Assignee: Nichia Corporation
    Inventors: Masahiko Sano, Takahiko Sakamoto, Keiji Emura, Katsuyoshi Kadan
  • Patent number: 8030665
    Abstract: A substrate 1 for growing nitride semiconductor has a first and second face and has a thermal expansion coefficient that is larger than that of the nitride semiconductor. At least n-type nitride semiconductor layers 3 to 5, an active layer 6 and p-type nitride semiconductor layers 7 to 8 are laminated to form a stack of nitride semiconductor on the first face of the substrate 1. A first bonding layer including more than one metal layer is formed on the p-type nitride semiconductor layer 8. A supporting substrate having a first and second face has a thermal expansion coefficient that is larger than that of the nitride semiconductor and is equal or smaller than that of the substrate 1 for growing nitride semiconductor. A second bonding layer including more than one metal layer is formed on the first face of the supporting substrate. The first bonding layer 9 and the second bonding layer 11 are faced with each other and, then, pressed with heat to bond together.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: October 4, 2011
    Assignee: Nichia Corporation
    Inventors: Shinichi Nagahama, Masahiko Sano, Tomoya Yanamoto, Keiji Sakamoto, Masashi Yamamoto, Daisuke Morita
  • Publication number: 20110233596
    Abstract: The present invention provides a light emitting element capable or realizing at least one of lower resistance, higher output, higher power efficiency (1 m/W), higher mass productivity and lower cost of the element using a light transmissive electrode for an electrode arranged exterior to the light emitting structure. A semiconductor light emitting element includes a light emitting section, a first electrode and a second electrode on a semiconductor structure including first and second conductive type semiconductor layers, the first and the second electrodes respectively including at least two layers of a first layer of a light transmissive conductive film conducting to the first and the second conductive type semiconductor and a second layer arranged so as to conduct with the first layer. First and second light transmissive insulating films are respectively arranged so as to overlap at least one part of the first and the second layers.
    Type: Application
    Filed: June 7, 2011
    Publication date: September 29, 2011
    Inventors: Masahiko SANO, Takahiko Sakamoto, Keiji Emura, Katsuyoshi Kadan