Patents by Inventor Kedar Shanker Shrestha

Kedar Shanker Shrestha 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).

  • Friction modifier and transmission oil
    Patent number: 8497232
    Abstract: A bis-type alkenyl-substituted succinimide which is prepared by reaction of succinic anhydride substituted with 2-alkenyl group having a branch structure in ?-position with alkylenepolyamine and its derivatives derived from the bis-type alkenyl-substituted succinimide by post-treatment are of value as friction modifiers, particularly for incorporation into lubricating oils for automatic transmissions.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: July 30, 2013
    Assignee: Chevron Japan Limited
    Inventors: Kedar Shanker Shrestha, Michio Shiga, Masami Fuchi, Takahiro Nakagawa
  • FRICTION MODIFIER AND TRANSMISSION OIL
    Publication number: 20110028364
    Abstract: A bis-type alkenyl-substituted succinimide which is prepared by reaction of succinic anhydride substituted with 2-alkenyl group having a branch structure in ?-position with alkylenepolyamine and its derivatives derived from the bis-type alkenyl-substituted succinimide by post-treatment are of value as friction modifiers, particularly for incorporation into lubricating oils for automatic transmissions.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 3, 2011
    Inventors: Kedar Shanker Shrestha, Michio Shiga, Masami Fuchi, Takahiro Nakagawa