Patents by Inventor Jun-ichi Taniuchi

Jun-ichi Taniuchi 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).

  • Patent number: 6753437
    Abstract: The present invention relates to a raw material for CVD comprising an organic iridium compound as a main component, said organic iridium compound being tris(2,4-octanedionato)iridium represented by Formula 1. Particularly preferably, the raw material for CVD consists only of the trans isomer of tris(2,4-octanedionato)iridium.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: June 22, 2004
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Takeyuki Sagae, Jun-ichi Taniuchi
  • Patent number: 6476247
    Abstract: The disclosed is a method of producing two organic ruthenium compounds; i.e., bis(ethylcyclopentadienyl)ruthenium and (alkylcyclopentadienyl)cyclopentadienylruthenium, which are useful for producing thin film through CVD. In one aspect, the invention provides a method for producing bis(ethylcyclopentadienyl)ruthenium, including hydrogenating bis(acetylcyclopentadienyl)ruthenium in the presence of a catalyst. In another aspect, the invention provides a method of producing (alkylcyclopentadienyl)cyclopentadienylruthenium, including acylating bis(cyclopentadienyl)ruthenium with carboxylic anhydride in the presence of phosphoric acid as a catalyst, to thereby produce (acylcyclopentadienyl)cyclopentadienylruthenium, and reducing the (acylcyclopentadienyl)cyclopentadienyl ruthenium.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: November 5, 2002
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Koji Okamoto, Jun-ichi Taniuchi, Masayuki Saito
  • Publication number: 20020064948
    Abstract: The present invention is a preparation method of the bis(alkylcyclopentadienyl)ruthenium by reacting a ruthenium compound, an alkylcyclopentadiene and a reducing agent, wherein the ruthenium compound, the alkylcyclopentadiene, and the reducing agent are reacted in the presence of a base. It is preferable that at least one of ammonia, amines, ammonium compounds, hydroxides, aniline, nitroaniline, aminophenol, aminodiphenyl, piperidine, Grignard reagents, alkali metals, alkoxides, phenyl lithium, methyl lithium, n-butyryl lithium, lithium aluminium hydride, and sodium amide is added as a base to the reaction system and the ruthenium compound, the alkylcyclopentadiene, and the reducing agent are reacted.
    Type: Application
    Filed: March 13, 2001
    Publication date: May 30, 2002
    Applicant: Tanaka Kikinzoku Kogyo K.K. (Japanese Corporatin)
    Inventors: Masayuki Saito, Jun-ichi Taniuchi