Patents by Inventor Tomotaka Nishikawa

Tomotaka Nishikawa 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: 20220393132
    Abstract: A light-emitting element and a display device capable of improving the light emission property are provided. Each of a plurality of anode electrodes (11) is provided for a corresponding pixel. The pixel-isolating insulation film (12) has an opening (120) exposing corresponding one of the plurality of anode electrodes (11) to outside, and has an eave (123B) in the middle of a thickness direction of an inner wall of the opening (120). An organic layer (13) includes a CGL (132) cut by the eave (123B) of the pixel-isolating insulation film (12), and covers the opening (120). A cathode electrode (14) is disposed on a surface of the organic layer (13), the surface being a surface on the opposite side of the anode electrode (11).
    Type: Application
    Filed: October 16, 2020
    Publication date: December 8, 2022
    Inventors: Tomotaka Nishikawa, Kunihiko Hikichi, Yuuki Sakai, Tsutomu Shimayama
  • Patent number: 10341475
    Abstract: A display unit includes: a display layer including a pixel electrode; a semiconductor layer provided in a layer below the display layer, the semiconductor layer including a wiring layer that includes a material removable by an etchant by which the pixel electrode is also removable; and a terminal section configured to electrically connect the semiconductor layer to an external circuit, the terminal section including a first electrically-conductive layer made of a material same as a material of the wiring layer.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: July 2, 2019
    Assignee: Sony Corporation
    Inventors: Koichi Nagasawa, Hirofumi Fujioka, Tomoki Sato, Tomotaka Nishikawa
  • Publication number: 20180191880
    Abstract: A display unit includes: a display layer including a pixel electrode; a semiconductor layer provided in a layer below the display layer, the semiconductor layer including a wiring layer that includes a material removable by an etchant by which the pixel electrode is also removable; and a terminal section configured to electrically connect the semiconductor layer to an external circuit, the terminal section including a first electrically-conductive layer made of a material same as a material of the wiring layer.
    Type: Application
    Filed: March 1, 2018
    Publication date: July 5, 2018
    Inventors: Koichi NAGASAWA, Hirofumi FUJIOKA, Tomoki SATO, Tomotaka NISHIKAWA
  • Publication number: 20170289325
    Abstract: A display unit includes: a display layer including a pixel electrode; a semiconductor layer provided in a layer below the display layer, the semiconductor layer including a wiring layer that includes a material removable by an etchant by which the pixel electrode is also removable; and a terminal section configured to electrically connect the semiconductor layer to an external circuit, the terminal section including a first electrically-conductive layer made of a material same as a material of the wiring layer.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 5, 2017
    Inventors: Koichi NAGASAWA, Hirofumi FUJIOKA, Tomoki SATO, Tomotaka NISHIKAWA
  • Patent number: 9712651
    Abstract: A display unit includes: a display layer including a pixel electrode; a semiconductor layer provided in a layer below the display layer, the semiconductor layer including a wiring layer that includes a material removable by an etchant by which the pixel electrode is also removable; and a terminal section configured to electrically connect the semiconductor layer to an external circuit, the terminal section including a first electrically-conductive layer made of a material same as a material of the wiring layer.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: July 18, 2017
    Assignee: Sony Corporation
    Inventors: Koichi Nagasawa, Hirofumi Fujioka, Tomoki Sato, Tomotaka Nishikawa
  • Publication number: 20170104857
    Abstract: A display unit includes: a display layer including a pixel electrode; a semiconductor layer provided in a layer below the display layer, the semiconductor layer including a wiring layer that includes a material removable by an etchant by which the pixel electrode is also removable; and a terminal section configured to electrically connect the semiconductor layer to an external circuit, the terminal section including a first electrically-conductive layer made of a material same as a material of the wiring layer.
    Type: Application
    Filed: December 21, 2016
    Publication date: April 13, 2017
    Inventors: Koichi NAGASAWA, Hirofumi FUJIOKA, Tomoki SATO, Tomotaka NISHIKAWA
  • Patent number: 9561543
    Abstract: A method for manufacturing metal powder includes: melting at least a portion of a metal starting material in a reaction vessel by utilizing plasma so as to form molten metal; evaporating the molten metal so as to produce a metal vapor; and transferring the metal vapor from the reaction vessel to a cooling tube together with a carrier gas supplied into the reaction vessel so as to cool the metal vapor, and condensing the metal vapor in the cooling tube, thereby producing metal powder. The method further includes supplying an oxygen gas into the reaction vessel.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: February 7, 2017
    Assignee: SHOEI CHEMICAL INC.
    Inventors: Fumiyuki Shimizu, Masayuki Maekawa, Tomotaka Nishikawa
  • Patent number: 9548346
    Abstract: A display unit includes: a display layer including a pixel electrode; a semiconductor layer provided in a layer below the display layer, the semiconductor layer including a wiring layer that includes a material removable by an etchant by which the pixel electrode is also removable; and a terminal section configured to electrically connect the semiconductor layer to an external circuit, the terminal section including a first electrically-conductive layer made of a material same as a material of the wiring layer.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: January 17, 2017
    Assignee: Sony Corporation
    Inventors: Koichi Nagasawa, Hirofumi Fujioka, Tomoki Sato, Tomotaka Nishikawa
  • Publication number: 20160035815
    Abstract: A display unit includes: a display layer including a pixel electrode; a semiconductor layer provided in a layer below the display layer, the semiconductor layer including a wiring layer that includes a material removable by an etchant by which the pixel electrode is also removable; and a terminal section configured to electrically connect the semiconductor layer to an external circuit, the terminal section including a first electrically-conductive layer made of a material same as a material of the wiring layer.
    Type: Application
    Filed: October 15, 2015
    Publication date: February 4, 2016
    Inventors: Koichi NAGASAWA, Hirofumi FUJIOKA, Tomoki SATO, Tomotaka NISHIKAWA
  • Patent number: 9219081
    Abstract: A display unit includes: a display layer including a pixel electrode; a semiconductor layer provided in a layer below the display layer, the semiconductor layer including a wiring layer that includes a material removable by an etchant by which the pixel electrode is also removable; and a terminal section configured to electrically connect the semiconductor layer to an external circuit, the terminal section including a first electrically-conductive layer made of a material same as a material of the wiring layer.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: December 22, 2015
    Assignee: Sony Corporation
    Inventors: Koichi Nagasawa, Hirofumi Fujioka, Tomoki Sato, Tomotaka Nishikawa
  • Publication number: 20150101454
    Abstract: A method for manufacturing metal powder includes: melting at least a portion of a metal starting material in a reaction vessel by utilizing plasma so as to form molten metal; evaporating the molten metal so as to produce a metal vapor; and transferring the metal vapor from the reaction vessel to a cooling tube together with a carrier gas supplied into the reaction vessel so as to cool the metal vapor, and condensing the metal vapor in the cooling tube, thereby producing metal powder. The method further includes supplying an oxygen gas into the reaction vessel.
    Type: Application
    Filed: April 10, 2013
    Publication date: April 16, 2015
    Inventors: Fumiyuki Shimizu, Masayuki Maekawa, Tomotaka Nishikawa
  • Publication number: 20140312329
    Abstract: Provided is a display unit that includes: first electrodes; a metal member provided around the first electrodes; an insulating layer having a first opening on corresponding one of the first electrodes and a second opening on the metal member; an organic light emission layer provided on a surface including a bottom surface of the first opening, except for whole or part of a bottom surface of the second opening; a partition wall arranged in contact with at least the insulating layer, in which the partition wall is formed in a process different from a process of forming the insulating layer; and a second electrode provided in contact with a contact region and a portion above the bottom surface of the first opening in the organic light emission layer, in which the contact region is part of the bottom surface of the second opening.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 23, 2014
    Applicant: Sony Corporation
    Inventors: Takuma Fujii, Hirofumi Fujioka, Tatsuya Maegawa, Tomotaka Nishikawa
  • Publication number: 20140209914
    Abstract: A display unit includes: a display layer including a pixel electrode; a semiconductor layer provided in a layer below the display layer, the semiconductor layer including a wiring layer that includes a material removable by an etchant by which the pixel electrode is also removable; and a terminal section configured to electrically connect the semiconductor layer to an external circuit, the terminal section including a first electrically-conductive layer made of a material same as a material of the wiring layer.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 31, 2014
    Applicant: Sony Corporation
    Inventors: Koichi NAGASAWA, Hirofumi FUJIOKA, Tomoki SATO, Tomotaka NISHIKAWA
  • Patent number: 8144140
    Abstract: A display apparatus has a driving panel including a circuit part, a coating layer, and a display part, provided sequentially over a driving substrate. The driving panel includes: an adhesion region which includes the circuit part, the coating layer and the display part and to which a seal panel is adhered through an adhesive layer therebetween; and a terminal region protruding from the seal panel and the adhesive layer. A plurality of metallic wires electrically connected to the circuit part in the adhesion region are extended into the terminal region, and the coating layer is provided in the adhesion region with at least one separated region between the plurality of metallic wires. The separated region of the coating layer is so formed that an end edge thereof lies beyond the adhesion region to reach the terminal region but not to reach an end edge of the terminal region.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: March 27, 2012
    Assignee: Sony Corporation
    Inventors: Tomotaka Nishikawa, Shinichiro Morikawa
  • Patent number: 7781956
    Abstract: A display apparatus includes: a substrate; and a plurality of light emitting elements arrayed on the substrate and each formed from a lower electrode, a light emitting function layer and an upper electrode stacked in this order on the substrate. A rib for element isolation is provided on the substrate and has a plurality of openings individually corresponding to the light emitting elements. Each of the openings of the rib being formed such that at least one of sides which define a shape in plan is formed only from a curved line or extends in a non-parallel relationship to that of another one of the openings.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: August 24, 2010
    Assignee: Sony Corporation
    Inventors: Akitsuna Takagi, Jiro Yamada, Tomotaka Nishikawa
  • Patent number: 7662884
    Abstract: It is an object of the present invention, which has been made in view of the above-mentioned state of the art, to provide a cement admixture capable of improving the water-reducing ability of cement compositions and the like and enhancing the strength and durability of hardened products produced therefrom and further capable of adjusting the viscosity of such compositions so as to facilitate the works at the sites of handling the same, as well as a method of producing such cement additive. A cement admixture comprising a polycarboxylic acid polymer and a nitrogen atom-containing compound having non-amide bond, wherein the mass ratio (A/B) between the mass (A) of said polycarboxylic acid polymer and the mass (B) of said nitrogen atom-containing compound having non-amide bond satisfies the relation 200>(A/B)>1.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: February 16, 2010
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Tsutomu Yuasa, Hiromichi Tanaka, Noboru Sakamoto, Tomotaka Nishikawa, Hiroko Izukashi, Toru Uno, Tsuyoshi Hirata, Tomiyasu Ueta, Yoshiyuki Onda
  • Patent number: 7638563
    Abstract: The polycarboxylic acid concrete admixture of the present invention exhibits properties such as decreasing the concrete viscosity, improving the slump-retaining ability, and suppressing bleeding water, and is improved in the ability to cement compositions or the like. The above-mentioned polycarboxylic acid concrete admixture comprises a polycarboxylic acid polymer containing a polyalkylene glycol in the side chain, wherein the polycarboxylic acid polymer is obtained by polymerizing monomer components containing an alkyl (meth)acrylate monomer and a specific polyalkylene glycol unsaturated monomer and unsaturated carboxylic acid (salt) monomer, and it has a specific weight average molecular weight.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: December 29, 2009
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Tomotaka Nishikawa, Toru Uno, Hirokazu Yamamoto, Yukiko Nishikawa, Hiromichi Tanaka, Tomiyasu Ueta
  • Publication number: 20080309650
    Abstract: A display apparatus has a driving panel including a circuit part, a coating layer, and a display part, provided sequentially over a driving substrate. The driving panel includes: an adhesion region which includes the circuit part, the coating layer and the display part and to which a seal panel is adhered through an adhesive layer therebetween; and a terminal region protruding from the seal panel and the adhesive layer. A plurality of metallic wires electrically connected to the circuit part in the adhesion region are extended into the terminal region, and the coating layer is provided in the adhesion region with at least one separated region between the plurality of metallic wires. The separated region of the coating layer is so formed that an end edge thereof lies beyond the adhesion region to reach the terminal region but not to reach an end edge of the terminal region.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 18, 2008
    Applicant: SONY CORPORATION
    Inventors: Tomotaka Nishikawa, Shinichiro Morikawa
  • Publication number: 20080224594
    Abstract: A display apparatus includes: a substrate; and a plurality of light emitting elements arrayed on the substrate and each formed from a lower electrode, a light emitting function layer and an upper electrode stacked in this order on the substrate. A rib for element isolation is provided on the substrate and has a plurality of openings individually corresponding to the light emitting elements. Each of the openings of the rib being formed such that at least one of sides which define a shape in plan is formed only from a curved line or extends in a non-parallel relationship to that of another one of the openings.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Applicant: SONY CORPORATION
    Inventors: Akitsuna Takagi, Jiro Yamada, Tomotaka Nishikawa
  • Patent number: 7405264
    Abstract: It is an object of the present invention to provide a polycarboxylic acid polpolymer which improves the water reducing capacity and workability of cement compositions and the like and making them easier to handle when the fluidity and water reducing capacity are at the same levels, a method of producing the copolymer, and a cement additive and a cement composition comprising the copolymer. The present invention is further to provide a polycarboxylic acid copolymer and a cement additive which are capable of improving the strength and durability of hardening products of cement compositions, hence can advantageously be used in ultrahigh strength concrete. The present invention is polycarboxylic acid copolymers having high water reducing capacity, reducing the viscosity of cement compositions and improving the workability in applying cement.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: July 29, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Tsutomu Yuasa, Tomotaka Nishikawa, Noboru Sakamoto, Tsuyoshi Hirata, Hiroko Izukashi, Tomiyasu Ueta, Hiromichi Tanaka, Yoshiyuki Onda, Toru Uno