Patents by Inventor Hiroshi Goto

Hiroshi Goto 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: 20150206978
    Abstract: Provided is a thin film transistor comprising an oxide semiconductor thin film layer and has a threshold voltage that does not change much due to light, a bias stress or the like, thereby exhibiting excellent stress stability. A thin film transistor of the present invention is provided with: a gate electrode; two or more oxide semiconductor layers that are used as a channel layer; an etch stopper layer for protecting the surfaces of the oxide semiconductor layers; a source-drain electrode; and a gate insulator film interposed between the gate electrode and the channel layer. The metal elements constituting an oxide semiconductor layer that is in direct contact with the gate insulator film are In, Zn and Sn. The hydrogen concentration in the gate insulator film, which is in direct contact with the oxide semiconductor layer, is controlled to 4 atomic % or less.
    Type: Application
    Filed: August 30, 2013
    Publication date: July 23, 2015
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Aya Miki, Shinya Morita, Hiroshi Goto, Hiroaki Tao, Toshihiro Kugimiya
  • Patent number: 9070597
    Abstract: A thin film transistor includes a gate electrode, a channel overlapped with the gate electrode, a source electrode contacting the channel, and a drain electrode spaced apart from the source electrode and contacting the channel. The channel includes indium-zinc-tin oxide sourced from a source including a single phase indium-zinc-tin oxide.
    Type: Grant
    Filed: April 27, 2014
    Date of Patent: June 30, 2015
    Assignees: SAMSUNG DISPLAY CO., LTD., KOBE STEEL, LTD.
    Inventors: Byung-Du Ahn, Gun-Hee Kim, Jun-Hyung Lim, Toshihiro Kugimiya, Hiroshi Goto, Aya Miki, Shinya Morita
  • Publication number: 20150171221
    Abstract: Provided is a thin film transistor comprising an oxide semiconductor thin film layer and has a threshold voltage that does not change much due to light, a bias stress or the like, thereby exhibiting excellent stress stability. A thin film transistor of the present invention is provided with: a gate electrode; an oxide semiconductor layer that is used as a channel layer; and a gate insulator film that is arranged between the gate electrode and the channel layer. The oxide semiconductor layer is configured of at least one metal element that is selected from the group consisting of In, Ga, Zn and Sn (excluding the cases where the oxide semiconductor layer is constituted of metal elements Sn, and at least one of In and Zn). The hydrogen concentration in the gate insulator film, which is in direct contact with the oxide semiconductor layer, is controlled to 4 atomic % or less.
    Type: Application
    Filed: August 30, 2013
    Publication date: June 18, 2015
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Aya Miki, Shinya Morita, Hiroshi Goto, Toshihiro Kugimiya, Hiroaki Tao, Kenta Hirose
  • Patent number: 9058914
    Abstract: This oxide sintered compact is obtained by mixing and sintering powders of zinc oxide, tin oxide and indium oxide. As determined by X-ray diffractometry of this oxide sintered compact, the oxide sintered compact has a Zn2SnO4 phase as the main phase and contains an In/In2O3—ZnSnO3 solid solution wherein In and/or In2O3 is solid-solved in ZnSnO3, but a ZnxInyOz phase (wherein x, y and z each represents an arbitrary positive integer) is not detected. Consequently, the present invention was able to provide an oxide sintered compact which is suitable for use in the production of an oxide semiconductor film for display devices and has both high electrical conductivity and high relative density. The oxide sintered compact is capable of forming an oxide semiconductor film that has high carrier mobility.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: June 16, 2015
    Assignee: KOBELCO RESEARCH INSTITUTE, INC.
    Inventors: Hiroshi Goto, Yuki Iwasaki, Masaya Ehira, Yoichiro Yoneda
  • Patent number: 9040441
    Abstract: Provided are an oxide sintered body and a sputtering target that are ideal for the production of an oxide semiconductor film for a display device. The oxide sintered body and sputtering target that are provided have both high conductivity and high relative density, are capable of forming an oxide semiconductor film having a high carrier mobility, and in particular, have excellent direct-current discharge stability in that long-term, stable discharge is possible, even when used by the direct-current sputtering method. The oxide sintered body of the invention is an oxide sintered body obtained by mixing and sintering zinc oxide, tin oxide, and an oxide of at least one metal (M metal) selected from the group consisting of Al, Hf, Ni, Si, Ga, In, and Ta. When the in-plane specific resistance and the specific resistance in the direction of depth are approximated by Gaussian distribution, the distribution coefficient ? of the specific resistance is 0.02 or less.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: May 26, 2015
    Assignee: KOBELCO RESEARCH INSTITUTE, INC.
    Inventors: Hiroshi Goto, Yuki Iwasaki
  • Patent number: 9028600
    Abstract: An inkjet ink, which contains water, an organic solvent, a surfactant, and a colorant, wherein the organic solvent contains at least one polyhydric alcohol having an equilibrium moisture content of 30% by mass or higher at a temperature of 23° C.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: May 12, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Goto, Akihiko Gotoh, Kiyofumi Nagai, Yuuki Yokohama, Hidetoshi Fujii
  • Publication number: 20150123116
    Abstract: Provided is a thin film transistor having an oxide semiconductor layer that has high mobility, excellent stress resistance, and good wet etching property. The thin film transistor comprises at least, a gate electrode, a gate insulating film, an oxide semiconductor layer, source-drain electrode and a passivation film, in this order on a substrate. The oxide semiconductor layer is a laminate comprising a first oxide semiconductor layer (IGZTO) and a second oxide semiconductor layer (IZTO). The second oxide semiconductor layer is formed on the gate insulating film, and the first oxide semiconductor layer is formed between the second oxide semiconductor layer and the passivation film. The contents of respective metal elements relative to the total amount of all the metal elements other than oxygen in the first oxide semiconductor layer are as follows; Ga: 5% or more; In: 25% or less (excluding 0%); Zn: 35 to 65%; and Sn: 8 to 30%.
    Type: Application
    Filed: June 6, 2013
    Publication date: May 7, 2015
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
    Inventors: Hiroshi Goto, Aya Miki, Tomoya Kishi, Kenta Hirose, Shinya Morita, Toshihiro Kugimiya
  • Patent number: 9023746
    Abstract: Provided is an oxide sintered body suitably used for the production of an oxide semiconductor film for a display device, wherein the oxide sintered body has both high conductivity and relative density, and is capable of depositing an oxide semiconductor film having high carrier mobility. This oxide sintered body is obtained by mixing and sintering powders of zinc oxide, tin oxide and indium oxide, and when an EPMA in-plane compositional mapping is performed on the oxide sintered body the percentage of the area in which Sn concentration is 10 to 50 mass % in the measurement area is 70 area percent or more.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: May 5, 2015
    Assignee: Kobelco Research Institute, Inc.
    Inventors: Yuki Iwasaki, Hiroshi Goto, Moriyoshi Kanamaru
  • Patent number: 9011588
    Abstract: To provide an inkjet treatment liquid, containing: a water-soluble coagulant; a water-soluble organic solvent; water; and an amide compound represented by the following general formula: where R is a C1-C6 alkyl group.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 21, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Hidetoshi Fujii, Hiroshi Goto
  • Publication number: 20150087092
    Abstract: Technologies are generally described for manufacturing an optical device by attaching a light-emitting element to an optical element through a resin. In various examples, a method is described, where a substrate is provided to have a through-hole at a position in the substrate where an optical element is to be mounted. A resin in liquid state may be injected into the through-hole in the substrate. Further, an optical element having a light-emitting portion may be mounted on the substrate such that a center of the tight-emitting portion is self-aligned with a center of the through-hole due to a surface tension of the resin in liquid state. The resin may be cured such that the optical element is fixed to the substrate.
    Type: Application
    Filed: April 22, 2013
    Publication date: March 26, 2015
    Inventor: Hiroshi Goto
  • Patent number: 8927623
    Abstract: To provide a recording ink which contains at least a water-dispersible colorant, a water-dispersible resin, a wetting agent, a surfactant and water, wherein the content of the wetting agent in the recording ink is in the range of from 20% by mass to 35% by mass, the total solid content of the water-dispersible colorant and the water-dispersible resin in the recording ink is in the range of from 12% by mass to 40% by mass, the water-dispersible resin contains fluorine resin particulates, and the ratio A:B, where A is the solid content of the water-dispersible resin in the recording ink and B is the solid content of a pigment contained in the water-dispersible colorant in the recording ink, is in the range of 0.5 to 8.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: January 6, 2015
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Goto
  • Patent number: 8923960
    Abstract: The present disclosure relates to devices, implementations and techniques for health monitoring. Embodiments of the present disclosure relate to cardiac arrest monitoring devices.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: December 30, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Hiroshi Goto
  • Patent number: 8915403
    Abstract: A fixed-amount discharge squeeze container (10) which discharges a specific amount of content liquid from a discharge port by squeeze deformation of a container body (11) includes a squeeze-deformable plastic-made container body (11) and a squeeze operating portion (14) to perform squeeze operation is arranged at a barrel portion (13) of the container body (11). The squeeze operating portion (14) has a cross-sectional shape formed with a compression face portion (16) having a mountain-like section including a pair of inclined face portions (15) arranged along two faces intersecting obtusely and a compression support portion (18) having an arc-shaped section which is jointed integrally with foot parts (19b) of the compression face portion (16) respectively via an edge line portion (17). The compression face portion (16) is restricted so as not to be flipped into a valley-like shape after the inclined face portions (15) deforms until force to expand the distance between the bilateral foot parts (19b) vanishes.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 23, 2014
    Assignee: Kao Corporation
    Inventors: Shinichi Inaba, Susumu Fujinami, Hiroshi Goto
  • Publication number: 20140368572
    Abstract: To provide an inkjet ink containing: a water-dispersible colorant; a surfactant; a penetrating agent; a water-dispersible resin; a wetting agent containing at least polyhydric alcohol having an equilibrium moisture content of 30% by mass or higher at 23° C., 80% RH; a compound represented by the general formula (1); water; and at least one selected from the group consisting of a compound represented by the general formulae (2) to (4), wherein the water-dispersible colorant is at least one selected from the group consisting of a self-dispersible pigment, a pigment dispersed by a pigment dispersing agent, and resin particles each containing a pigment, wherein a total amount of the water-dispersible colorant and the water-dispersible resin is 8% by mass to 35% by mass, and wherein a mass ratio of the water-dispersible resin to the water-dispersible colorant is 2 to 8.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 18, 2014
    Inventor: Hiroshi Goto
  • Publication number: 20140358122
    Abstract: A drug coating layer which is a drug coating layer having a morphological form including a plurality of elongated bodies having long axes that each crystal of a water-insoluble drug independently has on a substrate surface, in which the long axes of the elongated bodies are nearly linear in shape, and the long axes of the elongated bodies form an angle in a predetermined range with respect to a substrate plane with which the long axis of the elongated body intersects. The drug coating layer can provide low toxicity and a high intravascular stenosis inhibitory effect.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 4, 2014
    Applicant: Terumo Kabushiki Kaisha
    Inventors: Keiko YAMASHITA, Hiroshi Goto, Shigenori Nozawa, Katsumi Morimoto, Hiroaki Kasukawa
  • Publication number: 20140346498
    Abstract: A thin film transistor includes a gate electrode, a channel overlapped with the gate electrode, a source electrode contacting the channel, and a drain electrode spaced apart from the source electrode and contacting the channel. The channel includes indium-zinc-tin oxide sourced from a source including a single phase indium-zinc-tin oxide.
    Type: Application
    Filed: April 27, 2014
    Publication date: November 27, 2014
    Applicants: Samsung Display Co., Ltd., Kobe Steel, LTD.
    Inventors: Byung-Du AHN, Gun-Hee KIM, Jun-Hyung LIM, Toshihiro KUGIMIYA, Hiroshi GOTO, Aya MIKI, Shinya MORITA
  • Patent number: 8857962
    Abstract: An image forming method of the present invention including applying a pretreatment liquid to a recording medium, and discharging an inkjet recording ink dropwise according to an image signal to form an image on the recording medium on which the pretreatment liquid has been applied, wherein the recording medium is regular paper which has no coat layer, the pretreatment liquid contains a cationic polymer compound, a surfactant A, water and a water-soluble organic acid, and the inkjet recording ink contains a water-dispersible colorant, a water-soluble organic solvent, a surfactant B, a penetrating agent and water, and wherein the pretreatment liquid has a static surface tension of 20 mN/m to 30 mN/m.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Goto, Hisashi Habashi, Kiyofumi Nagai
  • Patent number: 8833612
    Abstract: A container body (11) is provided with a squeeze operating portion (13a) between a shoulder portion (15) and a bottom portion (14), the squeeze operating portion including a squeeze face portion (16) opposed to a squeeze direction X, a pair of lateral support wall portions (17) arranged along the squeeze direction X at both side sections of the squeeze face portion (16), and inclined linking face portions (18) arranged as being inclined therebetween. When the squeeze face portion (16) is compressed to the squeeze direction x, the inclined linking face portions (18) expand distance between the pair of lateral support wall portions (17) at both sides as deforming along the squeeze face portion (16) from an inclined state against the squeeze face portion (16). The inclined linking face portions (18) are restricted so as not to be flipped in the squeeze direction (x) side after deformation completes as expansion force vanishes, so that constant quantity of content liquid is discharged.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: September 16, 2014
    Assignee: Kao Corporation
    Inventors: Shinichi Inaba, Hiroshi Goto, Michiaki Fujita, Mitsugu Iwatsubo
  • Publication number: 20140240391
    Abstract: An inkjet ink of the present invention including: water; an organic solvent; a surfactant; and a colorant, wherein the organic solvent comprises the following (1), (2) and (3): (1) at least one polyhydric alcohol having an equilibrium moisture content of 30% by mass or higher at a temperature of 23° C. and humidity of 80% RH; (2) an amide compound expressed by the Structural Formula (I); (3) a compound expressed by the Structural Formula (II); a compound expressed by the Structural Formula (III), or a compound represented by the General Formula (I), or any combination thereof.
    Type: Application
    Filed: October 12, 2012
    Publication date: August 28, 2014
    Inventors: Hiroshi Goto, Hidetoshi Fujii, Yuuki Yokohama
  • Patent number: 8814340
    Abstract: An image forming method including: applying a pre-treatment liquid onto a coating layer provided on at least one surface of a support of a recording medium, jetting an inkjet ink onto the coating layer, onto which the pre-treatment liquid has been applied, so as to form an image, and applying or jetting a post-treatment liquid onto the coating layer, onto which the inkjet ink has been jetted, so as to form a transparent protective layer on the coating layer, wherein the inkjet ink contains the water-dispersible colorant, a water-soluble organic solvent, a surfactant, a penetrant and water, and wherein an amount of pure water transferred into the recording medium, provided with the coating layer, measured at a contact time of 100 ms with a dynamic scanning liquid absorptometer is 1 ml/m2 to 10 ml/m2, and the pre-treatment liquid contains a water-soluble aliphatic organic acid.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: August 26, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Goto