Patents by Inventor Hiroyuki Okuno

Hiroyuki Okuno 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: 20140227462
    Abstract: Provided is a wiring structure for display device which does not generate hillocks even when exposed to high temperatures at levels around 450 to 600° C., has excellent high-temperature heat resistance, keeps electrical resistance (wiring resistance) of the entire wiring structure low, and further has excellent resistance to hydrofluoric acid. This wiring structure for a display device comprises a structure in which are laminated, in order from the substrate side, a first layer of an Al alloy that contains at least one chemical element selected from the group (group X) consisting of Ta, Nb, Re, Zr, W, Mo, V, Hf, Ti, Cr, and Pt and contains at least one rare earth element, and a second layer of an Al alloy nitride, or a nitride of at least one chemical element selected from the group Y consisted of Ti, Mo, Al, Ta, Nb, Re, Zr, W, V, Hf, and Cr.
    Type: Application
    Filed: September 3, 2012
    Publication date: August 14, 2014
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel. Ltd.)
    Inventors: Hiroyuki Okuno, Toshihiro Kugimiya
  • Patent number: 8786090
    Abstract: The present invention provides an Al alloy film for a display device, to be directly connected to a conductive oxide film on a substrate, the Al alloy film comprising Ge in an amount of 0.05 to 0.5 at %, and comprising Gd and/or La in a total amount of 0.05 to 0.45 at %, a display device using the same, and a sputtering target for the display device. For the Al alloy film of the present invention, even when a barrier metal is not provided, and a conductive oxide film and the Al alloy film are directly connected, the adhesion between the conductive oxide film and the Al alloy film is high, and the contact resistivity is low, and preferably, the dry etching property is also excellent.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: July 22, 2014
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroshi Gotou, Katsufumi Tomihisa, Aya Hino, Hiroyuki Okuno, Junichi Nakai, Nobuyuki Kawakami, Mototaka Ochi
  • Publication number: 20140151886
    Abstract: Provided is a semiconductor element in which atomic interdiffusion between a semiconductor region and an electrode is suppressed and increase in the contact resistance is suppressed even in cases where the semiconductor element is exposed to high temperatures during the production processes or the like. A semiconductor element of the present invention is provided with: a semiconductor region that contains silicon; an electrode that contains aluminum; and a diffusion barrier layer that is interposed between the semiconductor region and the electrode and contains germanium. The germanium content in at least a part of the diffusion barrier layer is 4 at % or more.
    Type: Application
    Filed: July 19, 2012
    Publication date: June 5, 2014
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
    Inventors: Takeaki Maeda, Hiroyuki Okuno, Yoshihiro Yokota
  • Publication number: 20140131688
    Abstract: Provided is an interconnection structure comprising a reflective anode electrode for organic EL displays, which is provided with an Al alloy film that has excellent durability and is capable of assuring stable light emission characteristics even in cases where an Al reflective film is directly connected with an organic layer, while achieving high yield. The present invention is related to an interconnection structure which comprises, on a substrate, an Al alloy film that constitutes a reflective anode electrode for organic EL displays and an organic layer that contains a light-emitting layer. In the interconnection structure, the Al alloy film contains a specific rare earth element in an amount of 0.05-5% by atom and the organic layer is directly connected onto the Al alloy film.
    Type: Application
    Filed: May 18, 2012
    Publication date: May 15, 2014
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroyuki Okuno, Aya Miki, Toshihiro Kugimiya
  • Publication number: 20140086791
    Abstract: Provided is an Al alloy film for display devices, which has excellent heat resistance under high temperatures, low electric resistance (wiring resistance), and excellent corrosion resistance under alkaline environments. The present invention relates to an Al alloy film containing Ge (0.01-2.0 at. %) and a group X element (Ta, Ti, Zr, Hf, W, Cr, Nb, Mo, Ir, Pt, Re, and/or Os), wherein, with regard to precipitates each containing Al, the group X element and Ge generated when a heat treatment at 450 to 600° C. is carried out, the density of some of the precipitates which have equivalent circle diameters of 50 nm or more is controlled.
    Type: Application
    Filed: February 27, 2012
    Publication date: March 27, 2014
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Hiroyuki Okuno, Toshihiro Kugimiya
  • Publication number: 20140024415
    Abstract: A mobile terminal device includes a display section having a display surface for displaying a screen including information, an accepting section which accepts a moving operation for moving the screen, and a display control section which controls the display section based on the moving operation. When the moving operation for moving an end of the screen inside the end of the display surface is performed, the display control section controls the display section so that the screen is deformed to a moving direction of the screen in a direction of movement of the screen by the moving operation.
    Type: Application
    Filed: September 23, 2013
    Publication date: January 23, 2014
    Applicant: KYOCERA Corporation
    Inventors: Keiko MIKAMI, Tomoyo YOSHIDA, Hiroyuki OKUNO, Masayuki ONO
  • Patent number: 8565835
    Abstract: A mobile terminal device includes a display section having a display surface for displaying a screen including information, an accepting section which accepts a moving operation for moving the screen, and a display control section which controls the display section based on the moving operation. When the moving operation for moving an end of the screen inside the end of the display surface is performed, the display control section controls the display section so that the screen is deformed to a moving direction of the screen in a direction of movement of the screen by the moving operation.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: October 22, 2013
    Assignee: KYOCERA Corporation
    Inventors: Keiko Mikami, Tomoyo Yoshida, Hiroyuki Okuno, Masayuki Ono
  • Publication number: 20130249571
    Abstract: Provided is a touch panel sensor which has excellent durability particularly in a longitudinal direction as in the case in which an indentation load is imposed, rarely undergoes the increase in electrical resistivity which may be caused by the disconnection of a wire or as elapse of time, has high reliability and high glossiness, and also has an excellent color-displaying capability. This touch panel sensor comprises a transparent conductive film and a wiring that is connected to the transparent conductive film, wherein the wiring comprises a refractory metal film, an Al alloy film and a high-melting-point metal film in this order when observed from the side of a substrate, and wherein the Al alloy film contains a rare earth element in an amount of 0.05-5 atomic %. It is preferred for the touch panel sensor that the hardness is 2-3.5 GPa and the density of grain boundary triple junctions in the Al alloy structure is 2×108 /mm2 or more.
    Type: Application
    Filed: November 30, 2011
    Publication date: September 26, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroyuki Okuno, Aya Miki, Toshihiro Kugimiya
  • Publication number: 20130136949
    Abstract: The present invention provides an Al alloy film that, in a production step of a thin-film transistor substrate, reflective film, reflective anode, touch panel sensor, or the like, can effectively prevent corrosion such as pinhole corrosion (black dots) or corrosion of the Al alloy surface when immersed in a sodium chloride solution, has superior corrosion resistance, is able to suppress hillock formation, and has superior heat resistance. The Al alloy thin film is used as a reflective film or a wiring film on a substrate, and contains 0.01-0.5 at % of Ta and/or Ti and 0.05-2.0 at % of a rare earth element.
    Type: Application
    Filed: September 26, 2011
    Publication date: May 30, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroyuki Okuno, Toshihiro Kugimiya
  • Patent number: 8422207
    Abstract: Disclosed is an Al alloy film for a display device that, even when low-temperature heat treatment is applied, can realize satisfactorily low electric resistance, can realize a satisfactory reduction in contact resistance between the Al alloy film and a transparent pixel electrode connected directly to the Al alloy film, and has excellent corrosion resistance. The Al alloy film is connected directly to a transparent electroconductive film on the substrate in the display device. The Al alloy film comprises 0.05 to 0.5 atomic % of Co and 0.2 to 1.0 atomic % of Ge and satisfies the requirement that the content of Co and the content of Ge in the Al alloy film have a relationship represented by formula (1): [Ge]??0.25×[Co]+0.2 (1) In formula (1), [Ge] represents the content of Ge in the Al alloy film, atomic %; and [Co] represents the content of Co in the Al alloy film, atomic %.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: April 16, 2013
    Assignee: Kobe Steel, Ltd.
    Inventors: Junichi Nakai, Akira Nanbu, Hiroshi Goto, Hiroyuki Okuno, Aya Miki
  • Publication number: 20120301732
    Abstract: Disclosed is an Al alloy film for use in a display device, which does not undergo the formation of hillocks even when exposed to high temperatures of about 450° C. to 600° C., and has excellent high-temperature heat resistance, low electrical resistance (wiring resistance) and excellent corrosion resistance under alkaline environments. Specifically disclosed is an Al alloy film for use in a display device, which comprises at least one element selected from a group X consisting of Ta, Nb, Re, Zr, W, Mo, V, Hf and Ti and at least one rare earth element, and which meets the following requirement (1) when heated at 450° C. to 600° C. (1) Precipitates each having an equivalent circle diameter of 20 nm or more are present at a density of 500,000 particles/mm2 or more in a first precipitation product containing at least one element selected from Al and the elements included in the group X and at least one rare earth element.
    Type: Application
    Filed: February 16, 2011
    Publication date: November 29, 2012
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
    Inventors: Hiroyuki Okuno, Toshihiro Kugimiya, Hiroshi Goto
  • Publication number: 20120165078
    Abstract: A mobile terminal device includes a display section having a display surface for displaying a screen including information, an accepting section which accepts a moving operation for moving the screen, and a display control section which controls the display section based on the moving operation. When the moving operation for moving an end of the screen inside the end of the display surface is performed, the display control section controls the display section so that the screen is deformed to a moving direction of the screen in a direction of movement of the screen by the moving operation.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Applicant: KYOCERA CORPORATION
    Inventors: Keiko MIKAMI, Tomoyo YOSHIDA, Hiroyuki OKUNO, Masayuki ONO
  • Patent number: 8044399
    Abstract: A display has a glass substrate provided with a transparent conducting film, thin-film transistors, and an aluminum alloy wiring film electrically connecting the thin-film transistors to the transparent conducting film. The aluminum alloy wiring film is a layered structure having a first layer (X) of an aluminum alloy comprising at least one element selected from the specific element group Q including Ni and Ag, and at least one element selected from the specific element group R including rare-earth elements and Mg in a content in the specific range, and a second layer (Y) of an aluminum alloy containing having a resistivity lower than that of the first layer (X). The first layer (X) is in direct contact with the transparent conducting film.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: October 25, 2011
    Assignee: Kobe Steel, Ltd.
    Inventors: Aya Hino, Hiroshi Gotou, Hiroyuki Okuno, Junichi Nakai
  • Publication number: 20110198602
    Abstract: Disclosed is an Al alloy film which can be in direct contact with a transparent pixel electrode in a wiring structure of a thin film transistor substrate that is used in a display device, and which has improved corrosion resistance against an amine remover liquid that is used during the production process of the thin film transistor. Also disclosed is a display device using the Al alloy film. Specifically disclosed is an Al alloy film for a display device, said Al alloy film being directly connected with a transparent conductive film on a substrate of a display device, and containing 0.05-2.0 atom % of Ge, at least one element selected from among element group X (Ni, Ag, Co, Zn and Cu), and 0.02-2 atom % of at least one element selected from among element group Q consisting of the rare earth elements. A Ge-containing deposit and/or a Ge-concentrated part is present in the Al alloy film for a display device. Also specifically disclosed is a display device comprising the Al alloy film.
    Type: Application
    Filed: November 5, 2009
    Publication date: August 18, 2011
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Akira Nanbu, Hiroshi Goto, Aya Miki, Hiroyuki Okuno, Junichi Nakai, Tomoya Kishi, Toshiaki Takagi, Shigenobu Namba, Mamoru Nagao, Nobuhiro Kobayashi
  • Publication number: 20110019350
    Abstract: Disclosed is an Al alloy film for a display device that, even when low-temperature heat treatment is applied, can realize satisfactorily low electric resistance, can realize a satisfactory reduction in contact resistance between the Al alloy film and a transparent pixel electrode connected directly to the Al alloy film, and has excellent corrosion resistance. The Al alloy film is connected directly to a transparent electroconductive film on the substrate in the display device. The Al alloy film comprises 0.05 to 0.5 atomic % of Co and 0.2 to 1.0 atomic % of Ge and satisfies the requirement that the content of Co and the content of Ge in the Al alloy film have a relationship represented by formula (1): [Ge]??0.25×[Co]+0.2 (1) In formula (1), [Ge] represents the content of Ge in the Al alloy film, atomic %; and [Co] represents the content of Co in the Al alloy film, atomic %.
    Type: Application
    Filed: April 23, 2009
    Publication date: January 27, 2011
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Junichi Nakai, Akira Nanbu, Hiroshi Goto, Hiroyuki Okuno, Aya Miki
  • Publication number: 20110008640
    Abstract: Disclosed is a display device comprising an aluminum alloy film. In a wiring structure of a thin-film transistor substrate for use in display devices, the aluminum alloy film can realize direct contact between a thin film of an aluminum alloy and a transparent pixel electrode, can simultaneously realize low electric resistance and heat resistance, and can improve resistance to corrosion by an amine-based peeling liquid and an alkaline developing solution used in a thin-film transistor production process. In the display device, an oxide electroconductive film is in direct contact with an Al alloy film and at least a part of the Al alloy component is precipitated on the contact surface of the Al alloy film. The Al alloy film comprises at least one element (element X1) selected from the group consisting of Ni, Ag, Zn, and Co and at least one element (element X2) which, together with the element X1, can form an intermetallic compound.
    Type: Application
    Filed: March 31, 2009
    Publication date: January 13, 2011
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (kobe Steel Ltd.)
    Inventors: Hiroshi Goto, Akira Nanbu, Junichi Nakai, Hiroyuki Okuno, Mototaka Ochi, Aya Miki
  • Publication number: 20100328247
    Abstract: Disclosed is a highly reliable touch panel sensor comprising a guiding wiring that is less likely to cause an increase in electrical resistance and disconnection with the elapse of time, has a low electrical resistance, can ensure electrical conduction to a transparent conductive film, and can be connected directly to the transparent conductive film. The touch panel sensor comprises a transparent conductive film and a guiding wiring made of an aluminum alloy film connected directly to the transparent conductive film. The aluminum alloy film comprises 0.2 to 10 atomic% in total of at least one element selected from an X group consisting of Ni and Co. The aluminum alloy film has a hardness of 2 to 15 GPa.
    Type: Application
    Filed: February 20, 2009
    Publication date: December 30, 2010
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Aya Miki, Hiroshi Goto, Hiroyuki Okuno, Tomoya Kishi, Akira Nanbu
  • Publication number: 20100163877
    Abstract: A display has a glass substrate provided with a transparent conducting film, thin-film transistors, and an aluminum alloy wiring film electrically connecting the thin-film transistors to the transparent conducting film. The aluminum alloy wiring film is a layered structure having a first layer (X) of an aluminum alloy comprising at least one element selected from the specific element group Q including Ni and Ag, and at least one element selected from the specific element group R including rare-earth elements and Mg in a content in the specific range, and a second layer (Y) of an aluminum alloy containing having a resistivity lower than that of the first layer (X). The first layer (X) is in direct contact with the transparent conducting film.
    Type: Application
    Filed: September 13, 2007
    Publication date: July 1, 2010
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Aya Hino, Hiroshi Gotou, Hiroyuki Okuno, Junichi Nakai
  • Publication number: 20100065847
    Abstract: The present invention provides an Al alloy film for a display device, to be directly connected to a conductive oxide film on a substrate, the Al alloy film comprising Ge in an amount of 0.05 to 0.5 at %, and comprising Gd and/or La in a total amount of 0.05 to 0.45 at %, a display device using the same, and a sputtering target for the display device. For the Al alloy film of the present invention, even when a barrier metal is not provided, and a conductive oxide film and the Al alloy film are directly connected, the adhesion between the conductive oxide film and the Al alloy film is high, and the contact resistivity is low, and preferably, the dry etching property is also excellent.
    Type: Application
    Filed: November 27, 2007
    Publication date: March 18, 2010
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroshi Gotou, Katsufumi Tomihisa, Aya Hino, Hiroyuki Okuno, Junichi Nakai, Nobuyuki Kawakami, Mototaka Ochi
  • Publication number: 20100032186
    Abstract: The present invention relates to a transparent electrode for a display device which includes a first transparent conductive film containing nitrogen, and a second transparent conductive film not containing nitrogen, wherein the first transparent conductive film is in contact with an aluminum alloy film. In accordance with the present invention, there is obtained a transparent electrode for a display device which is capable of, even when a barrier metal layer to be generally provided between an aluminum alloy film and the transparent electrode is omitted, controlling the variance small while keeping the low contact resistance, and further which is also excellent in light transmission characteristics.
    Type: Application
    Filed: February 25, 2008
    Publication date: February 11, 2010
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Hiroshi Gotou, Hiroyuki Okuno