Patents by Inventor Mayuko SUMIYA

Mayuko SUMIYA 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).

  • Lubricating oil composition for transmission
    Patent number: 11560527
    Abstract: A lubricating oil composition for a transmission, the composition including: (A) a lubricant base oil comprising a mineral base oil and/or a synthetic base oil; and (B) a poly(meth)acrylate having a weight average molecular weight of no more than 25,000, wherein the composition has a kinematic viscosity at 100° C. of 2.5 to 4.9 mm2/s.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: January 24, 2023
    Assignee: ENEOS CORPORATION
    Inventors: Kohei Masuda, Haruko Nagai, Masaaki Itou, Mayuko Sumiya
  • LUBRICATING OIL COMPOSITION FOR TRANSMISSION
    Publication number: 20220127543
    Abstract: A lubricating oil composition for a transmission, the composition including: (A) a lubricant base oil comprising a mineral base oil and/or a synthetic base oil; and (B) a poly(meth)acrylate having a weight average molecular weight of no more than 25,000, wherein the composition has a kinematic viscosity at 100° C. of 2.5 to 4.9 mm2/s.
    Type: Application
    Filed: February 20, 2020
    Publication date: April 28, 2022
    Applicant: ENEOS Corporation
    Inventors: Kohei MASUDA, Haruko NAGAI, Masaaki ITOU, Mayuko SUMIYA