Patents by Inventor Masamitsu Matsui

Masamitsu Matsui 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: 20250019928
    Abstract: A swivel working machine includes a swivel base, a battery, a support to support a battery on or above the swivel base, an electric motor to be driven by electricity outputted by the battery, a hydraulic pump to be driven by the electric motor to deliver hydraulic fluid, a support portion to support the electric motor and the hydraulic pump on or above the swivel base. The support portion is separate from the support body and attached to the swivel base via a plurality of mounting devices.
    Type: Application
    Filed: September 27, 2024
    Publication date: January 16, 2025
    Inventors: Kiyoshi MATSUI, Junki ITO, Masamitsu DATE
  • Publication number: 20100105838
    Abstract: Provided are a material for an MD shrink film with good shrinking performance and thickness accuracy, and a film formed with the material. The material for the MD shrink film is a resin composition comprising a mixture of a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene and at least one of a vinyl aromatic hydrocarbon polymer, a copolymer of a vinyl aromatic hydrocarbon and (meth)acrylic acid and a copolymer of a vinyl aromatic hydrocarbon and a (meth)acrylate in a mass ratio of from 100/0 to 50/50, and a rubber-modified styrene polymer in an amount of from 0.5 to 3 parts by mass relative to 100 parts by mass of the mixture, wherein a molecular weight distribution (Mw/Mn) of the resin composition exceeds 1.2 and a content of the conjugated diene in monomer units in the resin composition is from 10 to 30% by mass.
    Type: Application
    Filed: February 19, 2008
    Publication date: April 29, 2010
    Applicant: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hideki Toya, Eiji Sato, Masamitsu Matsui
  • Patent number: 7189462
    Abstract: It is to provide a block copolymer and its copolymer composition which provides a heat shrinkable (multilayer) film with less spontaneous shrinkage while maintaining favorable low temperature shrinkability, and a heat shrinkable (multilayer) film containing the block copolymer. By using a block copolymer comprising a vinyl aromatic hydrocarbon and a conjugated diene characterized in that the relation of the loss tangent value obtained by dynamic viscoelasticity measurement with the temperature satisfies specific conditions, or a composition containing the copolymer composition as an essential component, a heat shrinkable (multilayer) film with less spontaneous shrinkability and less odor while maintaining favorable low temperature shrinkability can be obtained.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: March 13, 2007
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masamitsu Matsui, Hideki Watanabe, Jun Yoshida, Hisakazu Hoshino
  • Publication number: 20050089702
    Abstract: It is to provide a block copolymer and its copolymer composition which provides a heat shrinkable (multilayer) film with less spontaneous shrinkage while maintaining favorable low temperature shrinkability, and a heat shrinkable (multilayer) film containing the block copolymer. By using a block copolymer comprising a vinyl aromatic hydrocarbon and a conjugated diene characterized in that the relation of the loss tangent value obtained by dynamic viscoelasticity measurement with the temperature satisfies specific conditions, or a composition containing the copolymer composition as an essential component, a heat shrinkable (multilayer) film with less spontaneous shrinkability and less odor while maintaining favorable low temperature shrinkability can be obtained.
    Type: Application
    Filed: November 19, 2004
    Publication date: April 28, 2005
    Applicant: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masamitsu Matsui, Hideki Watanabe, Jun Yoshida, Hisakazu Hoshino
  • Patent number: 6841261
    Abstract: It is to provide a block copolymer and its copolymer composition which provides a heat shrinkable (multilayer) film with less spontaneous shrinkage while maintaining favorable low temperature shrinkability, and a heat shrinkable (multilayer) film containing the block copolymer. By using a block copolymer comprising a vinyl aromatic hydrocarbon and a conjugated diene characterized in that the relation of the loss tangent value obtained by dynamic viscoelasticity measurement with the temperature satisfies specific conditions, or a composition containing the copolymer composition as an essential component, a heat shrinkable (multilayer) film with less spontaneous shrinkability and less odor while maintaining favorable low temperature shrinkability can be obtained.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: January 11, 2005
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masamitsu Matsui, Hideki Watanabe, Jun Yoshida, Hisakazu Hoshino
  • Publication number: 20040102576
    Abstract: It is to provide a block copolymer and its copolymer composition which provides a heat shrinkable (multilayer) film with less spontaneous shrinkage while maintaining favorable low temperature shrinkability, and a heat shrinkable (multilayer) film containing the block copolymer.
    Type: Application
    Filed: May 8, 2003
    Publication date: May 27, 2004
    Inventors: Masamitsu Matsui, Hideki Watanabe, Jun Yoshida, Hisakazu Hoshino