Patents by Inventor Kouichi TSUJINO

Kouichi TSUJINO 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: 10538044
    Abstract: Provided is a method for producing a V-ribbed belt having a plurality of V-shaped ribs extending in a longitudinal direction and arranged in a width direction. The method includes: setting a shaped structure having a plurality of ridges arranged adjacent to one another in a belt mold including a plurality of compressed rubber layer-shaping grooves arranged adjacent to one another on an inner peripheral surface of the mold; molding a belt slab by crosslinking the shaped structure set in the mold, while compressed rubber layer-forming portions face radially outward and are fitted in the compressed rubber layer-shaping grooves, the compressed rubber layer-forming portions comprised of a surface rubber layer and a core rubber layer which are to constitute surface and inner portions, respectively; and cutting the belt slab into ring-shaped pieces having two or more of the compressed rubber layer-forming portions.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 21, 2020
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Tomoaki Hata, Kouichi Tsujino, Koichi Hosokawa, Hisashi Izumi, Masaki Miyanishi, Hirokazu Sakurai
  • Patent number: 10532528
    Abstract: A shaped structure and a fabric material are set in a belt mold such that the shaped structure and the fabric material are respectively positioned inside and outside with respect to each other. While each of compression layer-forming portions comprised of ridges of the shaped structure covered with the fabric material is fitted in an associated one of compression layer-shaping grooves of the belt mold, the shaped structure is pressed toward the belt mold and heated to be crosslinked, and integrated with the fabric material, thereby molding a cylindrical belt slab. The belt slab is cut into ring-shaped pieces having two or more of the compression layer-forming portions.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 14, 2020
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Naohisa Harushige, Kouichi Tsujino, Tomoaki Hata, Hideaki Kawahara, Hisashi Izumi, Yohei Hattori, Koichi Hosokawa
  • Patent number: 10391680
    Abstract: A method include: providing a cylindrical mold made of metal, a shaped structure having a cylindrical shape, a rotation mechanism configured to rotatably support the cylindrical mold, and an electromagnetic induction coil configured to heat the cylindrical mold through electromagnetic induction; setting the shaped structure inside the cylindrical mold; and molding a cylindrical belt slab by heating the cylindrical mold by the electromagnetic induction coil, while the cylindrical mold is rotated by the rotation mechanism and the shaped structure is pressurized from inside and pressed against the cylindrical mold.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: August 27, 2019
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Kouichi Tsujino, Hirokazu Sakurai, Hisashi Izumi, Masaki Miyanishi, Yusaku Taoshita
  • Publication number: 20190030844
    Abstract: A shaped structure and a fabric material are set in a belt mold such that the shaped structure and the fabric material are respectively positioned inside and outside with respect to each other. While each of compression layer-forming portions comprised of ridges of the shaped structure covered with the fabric material is fitted in an associated one of compression layer-shaping grooves of the belt mold, the shaped structure is pressed toward the belt mold and heated to be crosslinked, and integrated with the fabric material, thereby molding a cylindrical belt slab. The belt slab is cut into ring-shaped pieces having two or more of the compression layer-forming portions.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Naohisa HARUSHIGE, Kouichi TSUJINO, Tomoaki HATA, Hideaki KAWAHARA, Hisashi IZUMI, Yohei HATTORI, Koichi HOSOKAWA
  • Publication number: 20190030845
    Abstract: Provided is a method for producing a V-ribbed belt having a plurality of V-shaped ribs extending in a longitudinal direction and arranged in a width direction. The method includes: setting a shaped structure having a plurality of ridges arranged adjacent to one another in a belt mold including a plurality of compressed rubber layer-shaping grooves arranged adjacent to one another on an inner peripheral surface of the mold; molding a belt slab by crosslinking the shaped structure set in the mold, while compressed rubber layer-forming portions face radially outward and are fitted in the compressed rubber layer-shaping grooves, the compressed rubber layer-forming portions comprised of a surface rubber layer and a core rubber layer which are to constitute surface and inner portions, respectively; and cutting the belt slab into ring-shaped pieces having two or more of the compressed rubber layer-forming portions.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Tomoaki HATA, Kouichi TSUJINO, Koichi HOSOKAWA, Hisashi IZUMI, Masaki MIYANISHI, Hirokazu SAKURAI
  • Publication number: 20180370079
    Abstract: A method include: providing a cylindrical mold made of metal, a shaped structure having a cylindrical shape, a rotation mechanism configured to rotatably support the cylindrical mold, and an electromagnetic induction coil configured to heat the cylindrical mold through electromagnetic induction; setting the shaped structure inside the cylindrical mold; and molding a cylindrical belt slab by heating the cylindrical mold by the electromagnetic induction coil, while the cylindrical mold is rotated by the rotation mechanism and the shaped structure is pressurized from inside and pressed against the cylindrical mold.
    Type: Application
    Filed: August 30, 2018
    Publication date: December 27, 2018
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Kouichi TSUJINO, Hirokazu SAKURAI, Hisashi IZUMI, Masaki MIYANISHI, Yusaku TAOSHITA