Patents by Inventor Chyuji Inukai

Chyuji Inukai 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).

  • Flexible metal-clad laminate and method for producing the same
    Patent number: 7468197
    Abstract: Disclosed are a flexible metal-clad laminate comprising a metal foil and a heat-resistant resin film layer formed on one side of the metal foil, the heat-resistant resin film layer comprising a crosslinked condensation polymer and having an N-methyl-2-pyrrolidone-insolule content of at least 1%, and a method for producing the flexible metal-clad laminate comprising the steps of applying a heat-resistant resin solution to a metal foil; predrying the metal foil until the heat-resistant resin layer has an residual solvent content of 10 to 40% by weight; and carrying out solvent removal and heat-treatment while controlling the crosslinking reaction of the resin.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: December 23, 2008
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Tomoharu Kurita, Chyuji Inukai
  • Flexible metal-clad laminate and method for producing the same
    Publication number: 20070009710
    Abstract: Disclosed are a flexible metal-clad laminate comprising a metal foil and a heat-resistant resin film layer formed on one side of the metal foil, the heat-resistant resin film layer comprising a crosslinked condensation polymer and having an N-methyl-2-pyrrolidone-insolule content of at least 1%, and a method for producing the flexible metal-clad laminate comprising the steps of applying a heat-resistant resin solution to a metal foil; predrying the metal foil until the heat-resistant resin layer has an residual solvent content of 10 to 40% by weight; and carrying out solvent removal and heat-treatment while controlling the crosslinking reaction of the resin.
    Type: Application
    Filed: August 11, 2006
    Publication date: January 11, 2007
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Tomoharu Kurita, Chyuji Inukai
  • Flexible metal-clad laminate and process for preparing the same
    Publication number: 20020160211
    Abstract: Disclosed are a flexible metal-clad laminate comprising a metal foil and a heat-resistant resin film layer formed on one side of the metal foil, the heat-resistant resin film layer comprising a crosslinked condensation polymer and having an N-methyl-2-pyrrolidone-insolule content of at least 1%, and a method for producing the flexible metal-clad laminate comprising the steps of applying a heat-resistant resin solution to a metal foil; predrying the metal foil until the heat-resistant resin layer has an residual solvent content of 10 to 40% by weight; and carrying out solvent removal and heat-treatment while controlling the crosslinking reaction of the resin.
    Type: Application
    Filed: August 2, 2001
    Publication date: October 31, 2002
    Inventors: Tomoharu Kurita, Chyuji Inukai
  • Magnetic recording medium
    Patent number: 4666784
    Abstract: A magnetic recording medium having a magnetic layer of superior smoothness and excellent abrasion resistance and durability. The magnetic layer contains a polyurethane resin having a metal sulfonate group in the amount of 10-1000 equivalents/10.sup.6 g of the polymer; an ester of C.sub.10 -C.sub.18 fatty acid with butyl cellosolve and ferromagnetic fine particles.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: May 19, 1987
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Chyuji Inukai, Eizi Chino, Yoshio Tojima, Hideki Komagata, Masanori Nakamura