Patents by Inventor Ayano Otsuka

Ayano Otsuka 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
    Publication number: 20150119305
    Abstract: The object of this invention is to offer a lubricating oil composition which has superior extreme pressure properties (ability to prevent welding), which generates a small amount of sludge and which also has a high viscosity index. The invention provides a lubricating oil composition to which has been added a copolymer of specified olefins and alkyl methacrylates.
    Type: Application
    Filed: June 4, 2013
    Publication date: April 30, 2015
    Applicant: SHELL OIL COMPANY
    Inventors: Mitsuhiro Nagakari, Ayano Otsuka