Patents by Inventor Maki Nishiguchi

Maki Nishiguchi 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 producing ruthenium compound
    Patent number: 8278471
    Abstract: A method for producing ruthenium compound including the step of reacting a compound represented by General Formula (1): RuL02 (wherein L0 represents an unsaturated hydrocarbon compound having 4 to 10 carbon atoms and at least two double bonds) with trifluorophosphine or reacting the compound represented by General Formula (1) with trifluorophosphine, and hydrogen or a halogen to obtain a compound represented by General Formula (2): Ru(PF3)l(L1)m(L2)n (wherein L1 represents a hydrogen atom or halogen atom, L2 represents an unsaturated hydrocarbon compound having 4 to 10 carbon atoms and at least two double bonds, l is an integer from 1 to 5, m is an integer from 0 to 4, and n is an integer from 0 to 2, provided that l+m+2n=5 or 6). With this method, a trifluorophosphine-ruthenium compound can be synthesized under low-temperature and low-pressure conditions.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: October 2, 2012
    Assignees: JSR Corporation, Tri Chemical Laboratories Inc.
    Inventors: Ryuuichi Saitou, Kang-go Chung, Hideki Nishimura, Tatsuya Sakai, Sanshiro Komiya, Naoto Noda, Maki Nishiguchi
  • METHOD FOR PRODUCING RUTHENIUM COMPOUND
    Publication number: 20120101290
    Abstract: A method for producing ruthenium compound including the step of reacting a compound represented by General Formula (1): RuL02 (wherein L0 represents an unsaturated hydrocarbon compound having 4 to 10 carbon atoms and at least two double bonds) with trifluorophosphine or reacting the compound represented by General Formula (1) with trifluorophosphine, and hydrogen or a halogen to obtain a compound represented by General Formula (2): Ru(PF3)l(L1)m(L2)n (wherein L1 represents a hydrogen atom or halogen atom, L2 represents an unsaturated hydrocarbon compound having 4 to 10 carbon atoms and at least two double bonds, 1 is an integer from 1 to 5, m is an integer from 0 to 4, and n is an integer from 0 to 2, provided that l+m+2n=5 or 6). With this method, a trifluorophosphine-ruthenium compound can be synthesized under low-temperature and low-pressure conditions.
    Type: Application
    Filed: October 24, 2011
    Publication date: April 26, 2012
    Applicants: TRI Chemical Laboratories, Inc., JSR CORPORATION
    Inventors: Ryuuichi SAITOU, Kang-go Chung, Hideki Nishimura, Tatsuya Sakai, Sanshiro Komiya, Naoto Noda, Maki Nishiguchi