Patents by Inventor Yukako FUKUTANI

Yukako FUKUTANI 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).

  • Hard carbon film, manufacturing method for same, and sliding member
    Patent number: 11851741
    Abstract: A hard carbon film that forms a sliding surface of a sliding member, wherein the hard carbon film includes terminal atoms that bond to carbon atoms and has a plurality of protruding shaped parts, part of which protrude from the surface thereof, with the periphery of each of the plurality of protruding shaped parts being terminated by a terminal atom. A manufacturing method for the hard carbon film for producing the hard carbon film on a sliding surface of the sliding member using arc vapor deposition having graphite as the vaporization source, wherein a gas containing the terminal atoms that bond to carbon atoms is introduced, and the plurality of protruding shaped parts is grown on the surface of the hard carbon film while terminating the periphery of the plurality of protruding shaped parts by bonding of the terminal atoms to carbon atoms.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: December 26, 2023
    Assignee: NIPPON ITF, INC.
    Inventors: Takehiko Ooshiro, Yukako Fukutani, Koji Miyake
  • HARD CARBON FILM, MANUFACTURING METHOD FOR SAME, AND SLIDING MEMBER
    Publication number: 20210156021
    Abstract: A hard carbon film that forms a sliding surface of a sliding member, wherein the hard carbon film includes terminal atoms that bond to carbon atoms and has a plurality of protruding shaped parts, part of which protrude from the surface thereof, with the periphery of each of the plurality of protruding shaped parts being terminated by a terminal atom. A manufacturing method for the hard carbon film for producing the hard carbon film on a sliding surface of the sliding member using arc vapor deposition having graphite as the vaporization source, wherein a gas containing the terminal atoms that bond to carbon atoms is introduced, and the plurality of protruding shaped parts is grown on the surface of the hard carbon film while terminating the periphery of the plurality of protruding shaped parts by bonding of the terminal atoms to carbon atoms.
    Type: Application
    Filed: May 9, 2018
    Publication date: May 27, 2021
    Applicant: NIPPON ITF, INC.
    Inventors: Takehiko OOSHIRO, Yukako FUKUTANI, Koji MIYAKE