Patents by Inventor Takashi Otomo

Takashi Otomo 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: 11958101
    Abstract: A method for manufacturing a forged article, capable of improving the durability of a die for forging is provided. The method, includes forging a steel material, by using a die, by spraying or applying a water-soluble polymer lubricant containing 0.01 to 0.98 mass % of a water-soluble sulfate onto a working surface of the die, the die being made of a raw material having a constituent composition of by mass %, of 0.4 to 0.7% of C, 1.0% or less of Si, 1.0% or less of Mn, 4.0 to 6.0% of Cr, 2.0 to 4.0% of (Mo+½W), 0.5 to 2.5% of (V+Nb), 0 to 1.0% of Ni, 0 to 5.0% of Co, 0.02% or less of N, and a remnant composed of Fe and impurities, and having hardness of 55 to 60 HRC, and the die including a nitrided layer or a nitrosulfidized layer on the working surface thereof.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: April 16, 2024
    Assignees: PROTERIAL, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, DAIDO CHEMICAL CO., LTD., UMETOKU CO., LTD
    Inventors: Tatsuya Shouji, Shuho Koseki, Kenichi Inoue, Katsuhiro Obata, Satoshi Murakami, Naoki Hayashi, Yoshikazu Suzuki, Toshifumi Miyamoto, Toru Otomo, Nobuhiro Ikeda, Kousuke Uda, Takashi Ogisu
  • Patent number: 9828170
    Abstract: An aerosol product comprising an aerosol container comprising a container body and an aerosol valve fixed to an opening of the container body, and an aqueous concentrate and a propellant being filled in the aerosol container, wherein the aqueous concentrate comprises an active ingredient having reactivity with oxygen, and an inert ingredient is present in at least a part of an injection passage of the aerosol valve, even though the aqueous concentrate comprising an active ingredient having reactivity with oxygen is filled, oxidation of the active ingredient is inhibited in the aerosol valve, and an aerosol product that can be stored stably for a long period of time and a method for manufacturing the same can be provided.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: November 28, 2017
    Assignee: Daizo Corporation
    Inventors: Kayo Nomura, Takashi Otomo, Shinya Takemoto, Satoshi Mekata
  • Publication number: 20150166253
    Abstract: An aerosol product comprising an aerosol container comprising a container body and an aerosol valve fixed to an opening of the container body, and an aqueous concentrate and a propellant being filled in the aerosol container, wherein the aqueous concentrate comprises an active ingredient having reactivity with oxygen, and an inert ingredient is present in at least a part of an injection passage of the aerosol valve, even though the aqueous concentrate comprising an active ingredient having reactivity with oxygen is filled, oxidation of the active ingredient is inhibited in the aerosol valve, and an aerosol product that can be stored stably for a long period of time and a method for manufacturing the same can be provided.
    Type: Application
    Filed: March 28, 2013
    Publication date: June 18, 2015
    Applicant: DAIZO CORPORATION
    Inventors: Kayo Nomura, Takashi Otomo, Shinya Takemoto, Satoshi Mekata
  • Patent number: 7131602
    Abstract: The present invention provides an aerosol product, which sprays a large number of independent bubbles in the form of soap bubbles. More specifically, the aerosol product, which sprays a large number of independent bubbles in the form of soap bubbles, is provided by charging an aerosol container with an aerosol composition obtained by emulsifying an aqueous concentrate and a liquefied gas.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: November 7, 2006
    Assignee: Daizo Corporation
    Inventors: Takashi Otomo, Masatsugu Matsuura
  • Publication number: 20040217200
    Abstract: The present invention provides an aerosol product, which sprays a large number of independent bubbles in the form of soap bubbles. More specifically, the aerosol product, which sprays a large number of independent bubbles in the form of soap bubbles, is provided by charging an aerosol container with an aerosol composition obtained by emulsifying an aqueous concentrate and a liquefied gas.
    Type: Application
    Filed: May 12, 2004
    Publication date: November 4, 2004
    Inventors: Takashi Otomo, Masatsugu Matsuura