Patents by Inventor Hiroyuki Togawa

Hiroyuki Togawa 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: 8809894
    Abstract: A semiconductor light emitting diode including: a support substrate; an intermediate layer including an intermediate electrode portion, a second conductive semiconductor layer, an active layer, a first conductive semiconductor layer and an upper electrode portion sequentially disposed on the upper surface side of the support substrate in this order; and a lower electrode layer provided on the lower surface side of the support substrate, where: the intermediate layer has at least one intermediate electrode portion extending linearly or in an island-like shape; and the upper electrode portion and the intermediate electrode portion are disposed in such a positional relationship that these electrode portions are in parallel with and offset from each other and a distance between the upper electrode portion and the intermediate electrode portion is within the range of 10 ?m to 50 ?m.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: August 19, 2014
    Assignee: Dowa Electronics Materials Co., Ltd.
    Inventors: Masayuki Nakano, Hiroyuki Togawa, Hidetaka Yamada
  • Patent number: 8670195
    Abstract: A lens actuator includes a carrier that is configured to retain a lens; a first AF coil that is disposed in the carrier while wound about an axis perpendicular to a lens retaining surface; first to fourth magnets that are disposed opposite the first AF coil in four directions parallel to the lens retaining surface; a first OIS coil that is disposed opposite the first magnet; and a second OIS coil that is disposed opposite the second magnet. A current is passed through the first AF coil to move the carrier in a vertical direction along an axis. The currents are passed through the first and second OIS coils to a movable unit in front-back and left-right directions. Therefore, weight reduction of the movable unit can be achieved to provide a lens actuator, in which electric power saving can be achieved.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: March 11, 2014
    Assignee: Panasonic Corporation
    Inventors: Kimiya Ikushima, Hidekazu Tanaka, Hiroyuki Togawa, Norifumi Sata, Takuo Osaki, Takatoshi Ono
  • Publication number: 20140001508
    Abstract: A semiconductor light emitting diode of the present invention includes a semiconductor layer including a light emitting portion, and a pad electrode located on the semiconductor layer, the semiconductor light emitting diode further including, between the semiconductor layer and the pad electrode, a reflective portion including a light transmitting insulating layer serving as a current blocking layer located on the semiconductor layer, and a reflective layer located on the light transmitting insulating layer; a contact portion formed from an ohmic electrode in contact with the reflective portion, located on the semiconductor layer; and a conductive hard film between the reflective layer and the pad electrode, the conductive hard film having HV×t>630, where the Vickers hardness is HV (Hv) and the thickness is t (?m).
    Type: Application
    Filed: March 9, 2012
    Publication date: January 2, 2014
    Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.
    Inventors: Norio Tasaki, Hidetaka Yamada, Hiroyuki Togawa
  • Publication number: 20120314308
    Abstract: In a lens actuator according to an exemplary embodiment, wires that connect a holder and a base of a movable unit have diameters of 30 ?m or more and less than 70 ?m, and the wires have longitudinal elastic moduli of 100 GPa or more and less than 500 GPa. The wire is flexible even if a small amount of currents are passed through a plurality of OIS coils, and the lens actuator suitable to electric power saving can be provided.
    Type: Application
    Filed: June 6, 2012
    Publication date: December 13, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: KIMIYA IKUSHIMA, HIDEKAZU TANAKA, HIROYUKI TOGAWA, TATSUYA MIYAZAKI
  • Publication number: 20120314307
    Abstract: A lens actuator includes a carrier that is configured to retain a lens; a first AF coil that is disposed in the carrier while wound about an axis perpendicular to a lens retaining surface; first to fourth magnets that are disposed opposite the first AF coil in four directions parallel to the lens retaining surface; a first OIS coil that is disposed opposite the first magnet; and a second OIS coil that is disposed opposite the second magnet. A current is passed through the first AF coil to move the carrier in a vertical direction along an axis. The currents are passed through the first and second OIS coils to a movable unit in front-back and left-right directions. Therefore, weight reduction of the movable unit can be achieved to provide a lens actuator, in which electric power saving can be achieved.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 13, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: KIMIYA IKUSHIMA, HIDEKAZU TANAKA, HIROYUKI TOGAWA, NORIFUMI SATA, TAKUO OSAKI, TAKATOSHI ONO
  • Publication number: 20120007116
    Abstract: A semiconductor light emitting diode including: a support substrate; an intermediate layer including an intermediate electrode portion, a second conductive semiconductor layer, an active layer, a first conductive semiconductor layer and an upper electrode portion sequentially disposed on the upper surface side of the support substrate in this order; and a lower electrode layer provided on the lower surface side of the support substrate, where: the intermediate layer has at least one intermediate electrode portion extending linearly or in an island-like shape; and the upper electrode portion and the intermediate electrode portion are disposed in such a positional relationship that these electrode portions are in parallel with and offset from each other and a distance between the upper electrode portion and the intermediate electrode portion is within the range of 10 ?m to 50 ?m.
    Type: Application
    Filed: February 8, 2010
    Publication date: January 12, 2012
    Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.
    Inventors: Masayuki Nakano, Hiroyuki Togawa, Hidetaka Yamada
  • Publication number: 20110316030
    Abstract: A semiconductor light emitting diode comprising: a support substrate; an intermediate layer including an intermediate electrode portion, a second conductive semiconductor layer, an active layer, a first conductive semiconductor layer and an upper electrode portion sequentially disposed on the upper surface side of the support substrate in this order; and a lower electrode layer provided on the lower surface side of the support substrate, wherein: the intermediate layer has at least one intermediate electrode portion extending linearly or in an island-like shape; and the upper electrode portion and the intermediate electrode portion are disposed, in a view obtained by projecting these electrode portions, on an imaginary plane in parallel with the upper surface of the support substrate, respectively, in a positional relationship that these electrode portions, are offset from each other.
    Type: Application
    Filed: February 8, 2010
    Publication date: December 29, 2011
    Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.
    Inventors: Hiroyuki Togawa, Masayuki Nakano, Hidetaka Yamada
  • Patent number: 7977844
    Abstract: An inductor-type synchronous machine having an axial gap structure, which has a shaft portion at the center thereof, the machine includes: a field-side stator which has a yoke made of a magnetic material and a field body protruding from the yoke in an axial direction of the shaft portion to form an N pole and an S pole in a radial direction; a rotor which has N pole inductors disposed so as to be opposed to the N pole formed by the field body and S pole inductors disposed so as to be opposed to the S pole formed by the field body; and an armature-side stator in which an armature coil is disposed so as to be opposed to the N pole inductors and the S pole inductors.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: July 12, 2011
    Assignees: IHI Corporation, Sumitomo Electric Industries, Ltd.
    Inventors: Toshio Takeda, Tomoya Oota, Hiroyuki Togawa, Hidehiko Sugimoto, Toru Okazaki
  • Patent number: 7873692
    Abstract: A customer submits a service application by accessing the home page of a service provider through a personal computer 3, and transmits the data including the operation amount and the control amount of a temperature controller 4 to a server 2 of the service provider. The server 2 accumulates the received data, and in accordance with the contents of the received service application, processes the accumulated data and provides the services of calculating the control parameter for the temperature controller 4, producing a model of the object of control and making a diagnosis by checking for a temperature control fault.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: January 18, 2011
    Assignee: Omron Corporation
    Inventors: Takaaki Yamada, Ikuo Nanno, Kosaku Ando, Hitoshi Tanaka, Hiroyuki Togawa
  • Publication number: 20100127594
    Abstract: An inductor-type synchronous machine having an axial gap structure, which has a shaft portion at the center thereof, the machine includes: a field-side stator which has a yoke made of a magnetic material and a field body protruding from the yoke in an axial direction of the shaft portion to form an N pole and an S pole in a radial direction; a rotor which has N pole inductors disposed so as to be opposed to the N pole formed by the field body and S pole inductors disposed so as to be opposed to the S pole formed by the field body; and an armature-side stator in which an armature coil is disposed so as to be opposed to the N pole inductors and the S pole inductors.
    Type: Application
    Filed: June 20, 2007
    Publication date: May 27, 2010
    Inventors: Toshio Takeda, Tomoya Oota, Hiroyuki Togawa, Hidehiko Sugimoto, Toru Okazaki
  • Publication number: 20040186664
    Abstract: A customer submits a service application by accessing the home page of a service provider through a personal computer 3, and transmits the data including the operation amount and the control amount of a temperature controller 4 to a server 2 of the service provider. The server 2 accumulates the received data, and in accordance with the contents of the received service application, processes the accumulated data and provides the services of calculating the control parameter for the temperature controller 4, producing a model of the object of control and making a diagnosis by checking for a temperature control fault.
    Type: Application
    Filed: December 19, 2003
    Publication date: September 23, 2004
    Applicant: OMRON CORPORATION
    Inventors: Takaaki Yamada, Ikuo Nanno, Kosaku Ando, Hitoshi Tanaka, Hiroyuki Togawa