Patents by Inventor Yuko Shima

Yuko Shima 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).

  • METHOD FOR MASS SPECTROMETRY OF ORGANIC SYNTHETIC COMPOUND
    Publication number: 20240096612
    Abstract: The present invention provides a method for mass spectrometry of a negatively charged organic synthetic compound, and a matrix that can be used in said method. A method for mass spectrometry of a negatively charged organic synthetic compound, the method comprising using, as a liquid matrix, an ionic liquid comprising an amine ion and an acidic group-containing organic substance ion. For example, the amine is 3-aminoquinoline (3-AQ), and the acidic group-containing organic substance is p-coumaric acid (p-CA). The negatively charged organic synthetic compound to be analyzed is, for example, an organic synthetic polymer compound or a complex compound.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 21, 2024
    Applicant: SHIMADZU CORPORATION
    Inventors: Keisuke SHIMA, Yuko FUKUYAMA
  • Electrostatic chuck
    Patent number: 7280341
    Abstract: An electrostatic chuck is provided in which a lower oxide coating, an electrode, and an upper oxide coating are formed on a substrate. The lower oxide coating is formed by spraying an oxide of Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu and has a dielectric strength of 15-50 kV/mm.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: October 9, 2007
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takao Maeda, Yuko Shima, legal representative, Satoshi Shima, deceased
  • Electrostatic chuck
    Publication number: 20050168908
    Abstract: An electrostatic chuck is provided in which a lower oxide coating, an electrode, and an upper oxide coating are formed on a substrate. The lower oxide coating is formed by spraying an oxide of Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu and has a dielectric strength of 15-50 kV/mm.
    Type: Application
    Filed: February 8, 2005
    Publication date: August 4, 2005
    Inventors: Takao Maeda, Satoshi Shima, Yuko Shima