Patents by Inventor Hiroshi Ohata

Hiroshi Ohata 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).

  • Publication number: 20240129034
    Abstract: A forward Raman amplifier includes a plurality of pumping light sources with different wavelengths and the forward Raman amplifier, according to a fiber type or a zero-dispersion wavelength of the fiber, changes the number of pumping light sources to be emitted, changes a power ratio between the plurality of pumping light sources with the different wavelengths or changes wavelength characteristics of a gain, according to a fiber type.
    Type: Application
    Filed: July 12, 2023
    Publication date: April 18, 2024
    Applicant: Fujitsu Limited
    Inventors: Hiroshi NAKAMOTO, GOJI NAKAGAWA, Kentaro KAWANISHI, Hiroki OI, Tomohiro YAMAUCHI, Takafumi TERAHARA, Teppei OHATA
  • Publication number: 20150280173
    Abstract: A dielectric layer (170) faces a surface of alight transmissive electrode (120) opposite to a surface facing an organic functional layer (110). Then, a light transmissive substrate (140) faces a surface of the dielectric layer (170) opposite to a surface facing the light transmissive electrode (120). At least apart of an optical angle change unit (150) is positioned in the dielectric layer (170) in a thickness direction of the light transmissive substrate (140). Light incident on the dielectric layer (170), for example, is reflected by a side surface of the optical angle change unit (150), and thus an incident angle with respect to a first surface (141) of the light transmissive substrate (140) decreases.
    Type: Application
    Filed: October 26, 2012
    Publication date: October 1, 2015
    Inventors: Kazuo Kuroda, Hiroshi Ohata, Toshiharu Uchida
  • Publication number: 20150206927
    Abstract: An organic EL device includes at least one insulating bank disposed on a translucent substrate, a translucent electrode in contact with the bank, an organic layer containing a light-emitting layer and formed on the translucent electrode, and a reflection electrode formed on the organic layer. The bank is made from a translucent dielectric material having a low refractive index that is equal to or less than that of the organic layer. The bank has a side face that is a slope inclined with respect to the translucent substrate. The side face has a concave surface shape that faces the light-emitting layer from a slope in contact with the light-emitting layer to a slope in contact with a portion of the organic layer in the vicinity of the reflection electrode.
    Type: Application
    Filed: June 20, 2012
    Publication date: July 23, 2015
    Applicant: PIONEER CORPORATION
    Inventors: Kazuo Kuroda, Hideo Kudo, Hiroshi Ohata, Toshiharu Uchida, Yohei Tanaka
  • Patent number: 9005793
    Abstract: Systems and methods for obtaining and/or maintaining a column height of an electrolyte relative to a separator surface within an energy storage device. Embodiments of the invention provide a wicking component, a current collector, and a bias component. The current collector is positioned to force the bias component to press the wicking component tight to an inner surface of a separator. The bias component maintains contact between the wicking component and the surface of separator and creates a capillary gap in which sodium wicks.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: April 14, 2015
    Assignee: General Electric Company
    Inventors: Alec Roger Tilley, Hiroshi Ohata, Koichi Kanie
  • Patent number: 8704253
    Abstract: In conventional organic EL light-emitting devices, the ITO used for a transparent electrode has a refractive index of about 2.0 larger than the refractive index of 1.5 of a transparent glass substrate. As a result, the mode of most of light traveling from the transparent electrode toward the glass substrate is the transparent electrode guided mode, and no light is emitted from the transparent electrode toward the glass substrate. According to the invention, the light extraction efficiency of conventional light-emitting devices such as organic EL light-emitting devices is improved by using mode conversion means so as to solve the problem that conventional light-emitting devices such as organic EL light-emitting devices have low light extraction efficiencies. A light-emitting device of the invention comprises a light-emitting layer on a substrate and mode conversion means for converting the mode from the guided mode into an emission mode.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: April 22, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Susumu Noda, Takashi Asano, Masayuki Fujita, Hiroshi Ohata
  • Publication number: 20130316197
    Abstract: Systems and methods for obtaining and/or maintaining a column height of an electrolyte relative to a separator surface within an energy storage device. Embodiments of the invention provide a wicking component, a current collector, and a bias component. The current collector is positioned to force the bias component to press the wicking component tight to an inner surface of a separator. The bias component maintains contact between the wicking component and the surface of separator and creates a capillary gap in which sodium wicks.
    Type: Application
    Filed: December 3, 2012
    Publication date: November 28, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Alec Roger TILLEY, Hiroshi OHATA, Koichi KANIE
  • Patent number: 7897272
    Abstract: There is provided a surface-coated body equipped with a hard film that has high adherence and exerts excellent wear resistance. In a surface-coated body in which the surface of a base body is coated with at least one layer of a hard film constituted of one or more of nitride, nitrooxide, carbonitride and carbonitrooxide including at least Ti and Al, the hard film contains 0.01-1% by mass of one or more inert gas elements selected from He, Ne, Ar, Xe, Kr and Rn based on the total mass of the hard film, and, among peaks detected with the X-ray diffraction method for the hard film, the peak caused by the (111) plane of the crystal has the highest intensity.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: March 1, 2011
    Assignee: Kyocera Corporation
    Inventor: Hiroshi Ohata
  • Patent number: 7618512
    Abstract: A veneer laminated material formed by improving a laminated material formed in a plate or column shape by stacking a plurality of sheet-like veneers overlapping with each other and adhering them to each other, and a method of manufacturing the veneer laminated material. The method comprises the steps of forming the veneers into parquet-like veneers formed by longitudinally arranging the plurality of divided small veneer pieces in a parquetry pattern continuously with each other, intersecting the fiber directions of the parquet-like veneers aslant with the longitudinal side ends of the parquet-like veneers, and laminating and forming the veneer laminated material by arranging the fiber directions of the parquet-like veneers adjacent to each other in a laminated layer cross section so as to be reversed to each other and intersected with each other.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: November 17, 2009
    Assignee: Shimane Prefecture
    Inventor: Hiroshi Ohata
  • Publication number: 20080305287
    Abstract: A production method of a transfer body with an organic film thermal-transferred thereon, which can be preferably inhibit the mass transfer from occurring, is provided. After a convex structure 1 which is a step structure which is formed around an outer edge of a position of a thermal transfer receptor on a surface of a substrate 10 and higher than an outer edge of the position of thermal transfer receptor is disposed, with a donor sheet 200 which is an organic film-forming body on a surface of which a hole injection layer 162 is formed, light energy due to laser 210 is coverted into thermal energy, to thermal-transfer the hole injection layer 162 from a surface of the donor sheet 200 on a surface of the substrate 10, to produce a transfer body with an organic film thermal-transferred thereon.
    Type: Application
    Filed: July 31, 2006
    Publication date: December 11, 2008
    Applicant: PIONEER CORPORATION
    Inventors: Hiroshi Ohata, Satoshi Miyaguchi
  • Patent number: 7384675
    Abstract: A veneer laminated material formed by improving a laminated material formed in a plate or column shape by stacking a plurality of sheet-like veneers overlappingly with each other and adhering them to each other, and a method of manufacturing the veneer laminated material. The method comprises the steps of forming the veneers into parquet-like veneers formed by longitudinally arranging the plurality of divided small veneer pieces in a parquetry pattern continuously with each other, intersecting the fiber directions of the parquet-like veneers aslant with the longitudinal side ends of the parquet-like veneers, and laminating and forming the veneer laminated material by arranging the fiber directions of the parquet-like veneers adjacent to each other in a laminated layer cross section so as to be reversed to each other and intersected with each other.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: June 10, 2008
    Assignee: Shimane Prefecture
    Inventor: Hiroshi Ohata
  • Publication number: 20080121334
    Abstract: A veneer laminated material formed by improving a laminated material formed in a plate or column shape by stacking a plurality of sheet-like veneers overlapping with each other and adhering them to each other, and a method of manufacturing the veneer laminated material. The method comprises the steps of forming the veneers into parquet-like veneers formed by longitudinally arranging the plurality of divided small veneer pieces in a parquetry pattern continuously with each other, intersecting the fiber directions of the parquet-like veneers aslant with the longitudinal side ends of the parquet-like veneers, and laminating and forming the veneer laminated material by arranging the fiber directions of the parquet-like veneers adjacent to each other in a laminated layer cross section so as to be reversed to each other and intersected with each other.
    Type: Application
    Filed: February 13, 2008
    Publication date: May 29, 2008
    Inventor: Hiroshi Ohata
  • Publication number: 20070120136
    Abstract: In conventional organic EL light-emitting devices, the ITO used for a transparent electrode has a refractive index of about 2.0 larger than the refractive index of 1.5 of a transparent glass substrate. As a result, the mode of most of light traveling from the transparent electrode toward the glass substrate is the transparent electrode guided mode, and no light is emitted from the transparent electrode toward the glass substrate. According to the invention, the light extraction efficiency of conventional light-emitting devices such as organic EL light-emitting devices is improved by using mode conversion means so as to solve the problem that conventional light-emitting devices such as organic EL light-emitting devices have low light extraction efficiencies. A light-emitting device of the invention comprises a light-emitting layer on a substrate and mode conversion means for converting the mode from the guided mode into an emission mode.
    Type: Application
    Filed: March 19, 2004
    Publication date: May 31, 2007
    Applicants: Kyoto University, Pioneer Corporation, Hitachi, Ltd., Mitsubishi Chemical Corporation, Rohm Co., Ltd.
    Inventors: Susumu Noda, Takashi Asano, Masayuki Fujita, Hiroshi Ohata
  • Publication number: 20070092761
    Abstract: There is provided a surface-coated body equipped with a hard film that has high adherence and exerts excellent wear resistance. In a surface-coated body in which the surface of a base body is coated with at least one layer of a hard film constituted of one or more of nitride, nitrooxide, carbonitride and carbonitrooxide including at least Ti and Al, the hard film contains 0.01-1% by mass of one or more inert gas elements selected from He, Ne, Ar, Xe, Kr and Rn based on the total mass of the hard film, and, among peaks detected with the X-ray diffraction method for the hard film, the peak caused by the (111) plane of the crystal has the highest intensity.
    Type: Application
    Filed: October 26, 2006
    Publication date: April 26, 2007
    Applicant: KYOCERA CORPORATION
    Inventor: Hiroshi Ohata
  • Patent number: 7018726
    Abstract: There is provided a cemented carbide comprising a hard phase component which comprises a tungsten carbide (WC) and at least one selected from carbides, nitrides and carbonitrides of metals of the groups 4a, 5a and 6a in the periodic table; and a binder phase component comprising at least one of iron-group metals, wherein the surface region of the cemented carbide has 90–98% of the minimum hardness as compared with internal hardness, thereby having high hardness and toughness which is suitable to using as a cutting tool.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: March 28, 2006
    Assignee: Kyocera Corporation
    Inventors: Keiji Usami, Daisuke Shibata, Hiroshi Ohata
  • Publication number: 20060032579
    Abstract: A veneer laminated material formed by improving a laminated material (2) formed in a plate or column shape by stacking a plurality of sheet-like veneers overlappingly with each other and adhering them to each other, and a method of manufacturing the veneer laminated material. The method comprises the steps of forming the veneers into parquet-like veneers (2a) formed by longitudinally arranging the plurality of divided small veneer pieces (1a) in a parquetry pattern continuously with each other, intersecting the fiber directions (a) of the parquet-like veneers aslant with the longitudinal side ends of the parquet-like veneers (2a), and laminating and forming the veneer laminated material by arranging the fiber directions (a) of the parquet-like veneers (2a) adjacent to each other in a laminated layer cross section so as to be reversed to each other and intersected with each other.
    Type: Application
    Filed: December 11, 2003
    Publication date: February 16, 2006
    Inventor: Hiroshi Ohata
  • Publication number: 20050014030
    Abstract: There is provided a cemented carbide comprising a hard phase component which comprises a tungsten carbide (WC) and at least one selected from carbides, nitrides and carbonitrides of metals of the groups 4a, 5a and 6a in the periodic table; and a binder phase component comprising at least one of iron-group metals, wherein the surface region of the cemented carbide has 90-98% of the minimum hardness as compared with internal hardness, thereby having high hardness and toughness which is suitable to using as a cutting tool.
    Type: Application
    Filed: August 12, 2004
    Publication date: January 20, 2005
    Inventors: Keiji Usami, Daisuke Shibata, Hiroshi Ohata
  • Publication number: 20040248478
    Abstract: An organic EL device comprising: 1) a laminate consisting of an opposed pair of electrodes and an organic light-emitting layer sandwiched between the electrode, 2) a gas-tight housing accommodating the laminate and shielding off the external atmosphere, and 3) a sheet-like preformed moisture-absorbing body which is stretched and fabricated outside the gas-tight housing in advance, disposed in isolation from the laminate within the gas-tight housing, the preformed moisture-absorbing body being fixedly secured to at least one part of the gas-tight housing, and the preformed moisture-absorbing body comprising a desiccant and a resin component.
    Type: Application
    Filed: June 16, 2004
    Publication date: December 9, 2004
    Inventors: Hitoshi Nakada, Hiroshi Ohata, Yoshitaka Nonaka, Atsushi Nishino, Yohei Kawaguchi, Masayuki Fujimori, Kaneto Ohyama
  • Patent number: 6819042
    Abstract: There is provided a more expedient and positive desiccating means for an organic EL device. The invention relates to an organic EL device comprising 1) a laminate consisting of an opposed pair of electrodes and an organic light-emitting layer sandwiched between the electrodes, 2) a gas-tight housing accommodating the laminate and shielding off the external atmosphere and 3) a desiccating means disposed in isolation from the laminate within the gas-tight housing, characterized in that a preformed moisture-absorbing artifact as the desiccating means is fixedly secured to at least one part of the gas-tight housing and further to a method of manufacturing the same device.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: November 16, 2004
    Assignees: Dynic Corporation, Tohoku Pioneer Corporation
    Inventors: Hitoshi Nakada, Hiroshi Ohata, Yoshitaka Nonaka, Atsushi Nishino, Yohei Kawaguchi, Masayuki Fujimori, Kaneto Ohyama
  • Patent number: 6808828
    Abstract: Provision of an organic electroluminescent display panel having an increased life span and a decreased thickness. The organic electroluminescent display panel comprises an organic layer formed on a glass substrate, a sealing member provided on the substrate for covering the organic layer. A drying agent is provided inside the sealing member, also provided inside the sealing member is an initial moisture absorbent constituted by a photopolymerization initiator-containing resin capable of absorbing moisture by a photopolymerization reaction. Immediately after the sealing member is attached, the initial moisture absorbent is allowed to produce an effect of removing the initial moisture existing inside the sealing member.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: October 26, 2004
    Assignee: Tohoku Pioneer Corporation
    Inventor: Hiroshi Ohata
  • Patent number: 6797369
    Abstract: There is provided a cemented carbide comprising a hard phase component which comprises a tungsten carbide (WC) and at least one selected from carbides, nitrides and carbonitrides of metals of the groups 4a, 5a and 6a in the periodic table; and a binder phase component comprising at least one of iron-group metals, wherein the surface region of the cemented carbide has 90-98% of the minimum hardness as compared with internal hardness, thereby having high hardness and toughness which is suitable to using as a cutting tool.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: September 28, 2004
    Assignee: Kyocera Corporation
    Inventors: Keiji Usami, Daisuke Shibata, Hiroshi Ohata