Patents by Inventor Naoki Asao

Naoki Asao 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).

  • Organosilicon compounds and method of manufacturing the same
    Patent number: 7253243
    Abstract: There is provided a method of synthesizing an organosilicon compound. This method comprises polymerizing, as a starting material, allyl-(4-alkynyl-phenyl) silane represented by the following general formula (3) in a solvent selected from methylene chloride, chloroform, carbon tetrachloride and 1,2-dichloroethane and under the presence of hafnium tetrachloride to obtain an organosilicon compound represented by the following general formula (1). (wherein R is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a phenyl group, R's may be the same or different and are individually an alkyl group having 1 or 2 carbon atoms or a phenyl group, and n is an integer of 4 to 2500).
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: August 7, 2007
    Assignee: Japan Science and Technology Agency
    Inventors: Yoshinori Yamamoto, Naoki Asao, Hisamitsu Tomeba
  • Organosilicon compounds and method of manufacturing the same
    Publication number: 20060281890
    Abstract: There is provided a method of synthesizing an organosilicon compound. This method comprises polymerizing, as a starting material, allyl-(4-alkynyl-phenyl) silane represented by the following general formula (3) in a solvent selected from methylene chloride, chloroform, carbon tetrachloride and 1,2-dichloroethane and under the presence of hafnium tetrachloride to obtain an organosilicon compound represented by the following general formula (1). (wherein R is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a phenyl group, R's may be the same or different and are individually an alkyl group having 1 or 2 carbon atoms or a phenyl group, and n is an integer of 4 to 2500).
    Type: Application
    Filed: August 18, 2006
    Publication date: December 14, 2006
    Inventors: Yoshinori Yamamoto, Naoki Asao, Hisamitsu Tomeba