Patents by Inventor Ryoko Higashigaki

Ryoko Higashigaki 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).

  • Additive for polishing composition
    Patent number: 8420539
    Abstract: The invention relates to an additive for polishing composition, which can ensure stable polishing properties. The additive for polishing composition contains one or more amine compounds and an alcohol. The one or more amine compounds contain a quaternary ammonium salt. When the one or more amine compounds are contained in high concentration, the occurrence of precipitation of the amine compound can be prevented by including the alcohol.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: April 16, 2013
    Assignee: Nitta Haas Incorporated
    Inventors: Masashi Teramoto, Ryoko Higashigaki, Hiroshi Makino
  • Additive for polishing composition
    Patent number: 8308972
    Abstract: The invention relates to an additive for polishing composition, which can ensure stable polishing properties. The additive for polishing composition contains one or more amine compounds and an alcohol. The one or more amine compounds contain a quaternary ammonium salt. When the one or more amine compounds are contained in high concentration, the occurrence of precipitation of the amine compound can be prevented by including the alcohol.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: November 13, 2012
    Assignee: Nitta Haas Incorporated
    Inventors: Masashi Teramoto, Ryoko Higashigaki, Hiroshi Makino
  • ADDITIVE FOR POLISHING COMPOSITION
    Publication number: 20120193573
    Abstract: The invention relates to an additive for polishing composition, which can ensure stable polishing properties. The additive for polishing composition contains one or more amine compounds and an alcohol. The one or more amine compounds contain a quaternary ammonium salt. When the one or more amine compounds are contained in high concentration, the occurrence of precipitation of the amine compound can be prevented by including the alcohol.
    Type: Application
    Filed: April 9, 2012
    Publication date: August 2, 2012
    Applicant: NITTA HAAS INCORPORATED
    Inventors: Masashi TERAMOTO, Ryoko HIGASHIGAKI, Hiroshi MAKINO
  • ADDITIVE FOR POLISHING COMPOSITION
    Publication number: 20100025623
    Abstract: One embodiment of the present invention discloses an additive for polishing composition, which can ensure stable polishing properties. The additive for polishing composition contains one or more amine compounds and an alcohol. The one or more amine compounds contain a quaternary ammonium salt. In one embodiment, when the one or more amine compounds are contained in high concentration, the occurrence of precipitation of the amine compound can be prevented by including the alcohol.
    Type: Application
    Filed: September 26, 2007
    Publication date: February 4, 2010
    Applicant: NITTA HAAS INCORPORATED
    Inventors: Masashi Teramoto, Ryoko Higashigaki, Hiroshi Makino