Patents by Inventor Hirohisa Tanaka

Hirohisa Tanaka 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: 8651679
    Abstract: A display device includes a first light guide member provided with a first reflecting surface formed at its first end to reflect light emitted by a light source; a second light guide member provided with a penetrating hole in which the first light guide member is intended to be inserted and a second reflecting surface formed at its first end to reflect the light; a first pointer and a second pointer fixed to the first end of the first light guide member and the first end of the second light guide member to be illuminated by the light reflected by the first reflection surface and the second reflection surface, respectively, and a driving member configured to separately rotate the first light guide member and the second light guide member around a same rotation axis with the first pointer and the second pointer, respectively.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: February 18, 2014
    Assignee: Jeco Co., Ltd.
    Inventors: Hiroyuki Shimane, Hirohisa Tanaka, Akio Ito, Kazuya Sato
  • Patent number: 8623125
    Abstract: An electrode for plasma generation according to the present invention includes a plurality of collecting portions having a plurality of through holes, the plurality of collecting portions facing a gas flow in a direction where gas to be treated flows and provided spaced apart from each other. The electrode is applied to a plasma reactor of a treatment device to be provided for a device which discharges the smoke including PM, for example, an exhaust gas purifying device for automobile, or a smoke treatment device used in a facility where the smoke is discharged such as a plant.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: January 7, 2014
    Assignee: Daihatsu Motor Co., Ltd.
    Inventors: Yoonho Kim, Kazuya Naito, Takashi Ogawa, Isao Tan, Hirohisa Tanaka, Hirotoshi Fujikawa, Kazuhiko Madokoro
  • Publication number: 20130280626
    Abstract: An anion conducting electrolyte membrane with high performance where the electric conductivity and the water uptake are balanced, and a method of manufacturing the same are disclosed. The anion conducting electrolyte membrane comprises: a polymeric material which consists of fluorine polymer, olefinic polymer, or aromatic polymer; weak base quaternary salt obtained by the reaction of grafts introduced by graft polymerizing vinyl monomer which contains halogenated alkyl groups using radiation and strong organic bases.
    Type: Application
    Filed: March 5, 2013
    Publication date: October 24, 2013
    Inventors: Kimio YOSHIMURA, Hiroshi KOSHIKAWA, Tetsuya YAMAKI, Masaharu ASANO, Yasunari MAEKAWA, Hideyuki SHISHITANI, Hirohisa TANAKA, Susumu YAMAGUCHI, Koichiro ASAZAWA, Kazuya YAMAMOTO, Fumihiro SANPEI
  • Patent number: 8557476
    Abstract: A fuel cell system of the present invention includes a fixing unit that fixes or releases hydrazine; a releasing liquid supplying unit that supplies a water-based releasing liquid for releasing hydrazine fixed in the fixing unit to the fixing unit; a fuel cell to which hydrazine released in the fixing unit is supplied as fuel; a sensing unit for detecting an amount of hydrazine supplied to the fuel cell; and a detection unit that detects an amount of hydrazine fixed in the fixing unit based on a predetermined theoretical hydrazine supply amount to the fuel cell and a hydrazine supply amount detected by the sensing unit.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: October 15, 2013
    Assignee: Daihatsu Motor Co., Ltd.
    Inventors: Koichiro Asazawa, Koji Yamada, Hirohisa Tanaka
  • Patent number: 8520291
    Abstract: An illumination optical system which illuminates an irradiated plane with illumination light provided from a light source includes a spatial light modulator which is arranged in an optical path of the illumination optical system and cooperates with part of the illumination optical system to form a desired light intensity distribution at a pupil position of the illumination optical system or a position optically conjugated with the pupil position. A detection unit detects the light intensity distribution of the illumination light at a position in an optical path extending from the light source to the spatial light modulator. The detection unit includes a light receiving surface which receives some of the illumination light. A control unit controls the spatial light modulator based on the light intensity distribution detected by the detection unit.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: August 27, 2013
    Assignee: Nikon Corporation
    Inventor: Hirohisa Tanaka
  • Patent number: 8508717
    Abstract: An illumination optical system for illuminating an irradiated plane M with illumination light provided from a light source includes a spatial light modulator, which is arranged in an optical path of the illumination optical system and forms a desired light intensity distribution at a pupil position of the illumination optical system or a position optically conjugated with the pupil position, and a diffuser, which is arranged at an incidence side of the spatial light modulator through which the illumination light enters.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: August 13, 2013
    Assignee: Nikon Corporation
    Inventor: Hirohisa Tanaka
  • Publication number: 20130189603
    Abstract: [Problem] To provide a fuel cell having excellent power generation performance, which includes a compound containing at least hydrogen and nitrogen as fuel and uses an anion exchange membrane as an electrolyte layer. [Solution] In a fuel cell 1 including an electrolyte layer 4 formed from an anion exchange membrane, a fuel side electrode 2 and an oxygen side electrode 3, both electrodes being disposed to face each other with the electrolyte layer 4 interposed therebetween, the fuel side electrode 2 contains lanthanum and nickel as a metal catalyst such that the content proportion of lanthanum is 10 to 30% relative to the total mole of the lanthanum and nickel. Further, a compound containing at least hydrogen and nitrogen, such as hydrazine, is used as fuel.
    Type: Application
    Filed: September 9, 2011
    Publication date: July 25, 2013
    Inventors: Tomokazu Sakamoto, Koichiro Asazawa, Koji Yamada, Hirohisa Tanaka
  • Patent number: 8493549
    Abstract: An illumination optical apparatus that substantially maintains a desirable profile even when changing the outer shape of light intensity distribution formed on an illumination pupil plane with an axicon system. The illumination optical system illuminates an irradiated surface based on light from an optical source and includes a prism system, which changes the interval along an optical axis between a pair of prisms to change the light intensity distribution on an illumination pupil plane.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: July 23, 2013
    Assignee: Nikon Corporation
    Inventor: Hirohisa Tanaka
  • Patent number: 8462317
    Abstract: An illumination optical system for illuminating an irradiated plane M with illumination light provided from a light source includes a spatial light modulator, which is arranged in an optical path of the illumination optical system and forms a desired light intensity distribution at a pupil position of the illumination optical system or a position optically conjugated with the pupil position, and a diffuser, which is arranged at an incidence side of the spatial light modulator through which the illumination light enters.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: June 11, 2013
    Assignee: Nikon Corporation
    Inventor: Hirohisa Tanaka
  • Patent number: 8456624
    Abstract: There is disclosed an inspection device for inspecting a spatial light modulator having a plurality of optical elements arrayed two-dimensionally and controlled individually, said inspection device comprising, a conjugate optical system which is arranged optically downstream the spatial light modulator and which forms a conjugate plane optically conjugate with an array plane where the plurality of optical elements are arrayed, a photodetector having a detection surface arranged on or near the conjugate plane, and an inspection unit which inspects optical characteristics of the plurality of optical elements, based on a result of detection by the photodetector.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: June 4, 2013
    Assignee: Nikon Corporation
    Inventors: Osamu Tanitsu, Hirohisa Tanaka
  • Patent number: 8451430
    Abstract: According to one embodiment, an illumination optical system comprises an optical integrator which forms a secondary light source on an illumination pupil plane in an illumination optical path of the illumination optical system with incidence of exposure light from a light source device thereinto; a first transmission filter arranged in an optical path of the exposure light emitted from a first surface illuminant of the secondary light source and having a transmittance characteristic varying according to angles of incidence of the exposure light; a second transmission filter arranged in an optical path of the exposure light emitted from a second surface illuminant of the secondary light source and having a transmittance characteristic varying according to the angles of incidence of the exposure light; and a rotation mechanism which rotates the first and second transmission filters so as to vary an angle of inclination thereof relative to the optical axis of the illumination optical system.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: May 28, 2013
    Assignee: Nikon Corporation
    Inventors: Hirohisa Tanaka, Hiroyuki Hirota
  • Patent number: 8446579
    Abstract: An inspection device is for inspecting a spatial light modulator having a plurality of optical elements arrayed two-dimensionally and controlled individually. The inspection device includes a Fourier transform optical system which is arranged optically downstream the spatial light modulator and which forms a Fourier transform plane optically in a Fourier transform relation with an array plane where the plurality of optical elements are arrayed, a photodetector having a detection surface arranged on or near the Fourier transform plane, and an inspection unit which inspects optical characteristics of the plurality of optical elements, based on a result of detection by the photodetector.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: May 21, 2013
    Assignee: Nikon Corporation
    Inventors: Osamu Tanitsu, Hirohisa Tanaka
  • Publication number: 20130094175
    Abstract: A display device includes a first light guide member provided with a first reflecting surface formed at its first end to reflect light emitted by a light source; a second light guide member provided with a penetrating hole in which the first light guide member is intended to be inserted and a second reflecting surface formed at its first end to reflect the light; a first pointer and a second pointer fixed to the first end of the first light guide member and the first end of the second light guide member to be illuminated by the light reflected by the first reflection surface and the second reflection surface, respectively, and a driving member configured to separately rotate the first light guide member and the second light guide member around a same rotation axis with the first pointer and the second pointer, respectively.
    Type: Application
    Filed: March 14, 2012
    Publication date: April 18, 2013
    Applicant: Jeco Co., Ltd.
    Inventors: Hiroyuki Shimane, Hirohisa Tanaka, Akio Ito, Kazuya Sato
  • Patent number: 8361925
    Abstract: The exhaust gas-purifying catalyst includes at least one of a first composite oxide represented by a formula A(Al2-xBx)O4 and a second composite oxide represented by a formula (Al2-yCy)O3, wherein element A is a divalent transition metal other than platinum-group elements, each of elements B and C is a transition metal other than platinum-group elements, x satisfies 0<x<2, and y satisfies 0<y<2.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: January 29, 2013
    Assignees: Cataler Corporation, Daihatsu Motor Co., Ltd.
    Inventors: Satoshi Matsueda, Mareo Kimura, Hiroto Yoshida, Keiichi Narita, Hirohisa Tanaka, Mari Uenisha, Masashi Taniguchi
  • Publication number: 20130011765
    Abstract: In a fuel cell including an electrolyte layer allowing an anion component to migrate, and a fuel-side electrode and an oxygen-side electrode arranged to face each other while sandwiching the electrolyte layer, the oxygen-side electrode contains a first catalyst containing a first transition metal and polypyrrole, and a second catalyst containing a second transition metal and a porphyrin ring-containing compound so that the mixing ratio of the first catalyst relative to 100 parts by mass of the total amount of the first catalyst and the second catalyst is more than 10 parts by mass, and below 90 parts by mass.
    Type: Application
    Filed: March 23, 2011
    Publication date: January 10, 2013
    Applicants: STC UNM, DAIHATSU MOTOR CO., LTD.
    Inventors: Koichiro Asazawa, Koji Yamada, Hirohisa Tanaka, Kazuya Yamamoto, Tim Olson, Svitlana Pylypenko, Plamen Atanassov
  • Patent number: 8300213
    Abstract: An illumination optical apparatus which constantly controls a plurality of polarization states with high accuracy. An illumination optical system, which illuminates a pattern surface of a mask with illumination light, includes a polarization optical system and a depolarizer. The polarization optical system includes a half wavelength plate and PBS, which varies a polarization state of the illumination light to form a linear polarization state having a predetermined polarization direction. The depolarizer is arranged toward the mask from the polarization optical system and varies the polarization state of the illumination light emitted from the polarization optical system.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: October 30, 2012
    Assignee: Nikon Corporation
    Inventor: Hirohisa Tanaka
  • Publication number: 20120236284
    Abstract: An illumination optical system for illuminating an irradiated plane M with illumination light provided from a light source includes a spatial light modulator, which is arranged in an optical path of the illumination optical system and forms a desired light intensity distribution at a pupil position of the illumination optical system or a position optically conjugated with the pupil position, and a diffuser, which is arranged at an incidence side of the spatial light modulator through which the illumination light enters.
    Type: Application
    Filed: May 30, 2012
    Publication date: September 20, 2012
    Applicant: NIKON CORPORATION
    Inventor: Hirohisa TANAKA
  • Publication number: 20120236285
    Abstract: An illumination optical system illuminates an irradiated surface with light supplied from a light source. The illumination optical system includes a diffractive optical element disposed in an optical path of linearly polarized light supplied from the light source. The diffractive optical element forms a multipole illumination field. including a plurality of illumination fields. The illumination optical system also includes an optical integrator that forms a multipole light source including a plurality of planar light sources with light that has passed through the multipole illumination field. The illumination optical system also includes a polarization optical member disposed in an illumination optical path and that sets a polarization direction of light that has passed through the multipole light source to a predetermined polarization direction.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 20, 2012
    Applicant: NIKON CORPORATION
    Inventors: Osamu TANITSU, Hirohisa TANAKA, Kenichi MURAMATSU, Norio KOMINE, Hisashi NISHINAGA, Tomoyuki MATSUYAMA, Takehito KUDO
  • Publication number: 20120171627
    Abstract: An inspection device is for inspecting a spatial light modulator having a plurality of optical elements arrayed two-dimensionally and controlled individually. The inspection device includes a Fourier transform optical system which is arranged optically downstream the spatial light modulator and which forms a Fourier transform plane optically in a Fourier transform relation with an array plane where the plurality of optical elements are arrayed, a photodetector having a detection surface arranged on or near the Fourier transform plane, and an inspection unit which inspects optical characteristics of the plurality of optical elements, based on a result of detection by the photodetector.
    Type: Application
    Filed: March 12, 2012
    Publication date: July 5, 2012
    Applicant: NIKON CORPORATION
    Inventors: Osamu TANITSU, Hirohisa TANAKA
  • Patent number: D674379
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: January 15, 2013
    Assignee: Sony Corporation
    Inventors: Akio Suzuki, Kazunori Kusuki, Hidefumi Goto, Hirohisa Tanaka, Takuro Hibino, Xiaofeng Song, Zhongsheng Hong