Patents by Inventor Mayu Esaka

Mayu Esaka 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).

  • Twisted cord for core wire of transmission belt, manufacturing method and use of same, and transmission belt
    Patent number: 11933383
    Abstract: The present invention relates to a twisted cord for constituting a core wire of a power-transmission belt, the twisted cord including a plurality of primary twisted yarns that are bundled and secondarily-twisted, in which when secondary twist is untwisted by 25 cm, a difference in length between the longest primary twisted yarn L and the shortest primary twisted yarn S among the plurality of primary twisted yarns is 1 to 10 mm.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: March 19, 2024
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Yosuke Sueto, Takuya Tomoda, Mayu Esaka
  • Rubber Composition and Friction Transmission Belt
    Publication number: 20220348753
    Abstract: A rubber composition includes an elastomer component, a polyvinyl pyrrolidone-based resin, and a non-water-absorbent short fiber, and includes substantially no water-absorbent fiber. The elastomer component may include an ethylene-?-olefin elastomer. The polyvinyl pyrrolidone-based resin may have a K value of 10 to 100. The non-water-absorbent short fiber may include an aliphatic polyamide short fiber.
    Type: Application
    Filed: September 25, 2020
    Publication date: November 3, 2022
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Mayu Esaka, Yusuke Hemmi
  • Friction Transmission Belt
    Publication number: 20220325777
    Abstract: A frictional power transmission belt includes a compression rubber layer that includes a frictional power transmission surface at least a part of which can come into contact with a pulley and that is formed of a cured product of a rubber composition. On a surface of the frictional power transmission surface, a surface layer comprising a cured product of a rubber composition containing a polyvinyl pyrrolidone-based resin and an elastomer component is laminated.
    Type: Application
    Filed: September 25, 2020
    Publication date: October 13, 2022
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Mayu Esaka, Yusuke Hemmi, Eyobashenafi Tessema
  • Twisted Cord for Core Wire of Transmission Belt, Manufacturing Method and Use of Same, and Transmission Belt
    Publication number: 20220243785
    Abstract: The present invention relates to a twisted cord for constituting a core wire of a power-transmission belt, the twisted cord including a plurality of primary twisted yarns that are bundled and secondarily-twisted, in which when secondary twist is untwisted by 25 cm, a difference in length between the longest primary twisted yarn L and the shortest primary twisted yarn S among the plurality of primary twisted yarns is 1 to 10 mm.
    Type: Application
    Filed: May 15, 2020
    Publication date: August 4, 2022
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Yosuke Sueto, Takuya Tomoda, Mayu Esaka