Patents by Inventor Atsumu Kanda

Atsumu Kanda 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).

  • Surface treated steel material
    Patent number: 6488785
    Abstract: Disclosed herein is a surface treatment agent for steel, characterized in that, said agent contains 0.1-15% by mass of chromium sulfate and 10-40% by mass of a binder resin containing butyral resin or a mixture of butyral resin with another resin which is compatible with butyral resin.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: December 3, 2002
    Inventors: Hirofumi Kishikawa, Masato Yamashita, Atsumu Kanda, Hiroshi Ono
  • Surface treated steel material
    Publication number: 20020029826
    Abstract: Disclosed herein is a surface treatment agent for steel, characterized in that, said agent contains 0.1-15% by mass of chromium sulfate and 10-40% by mass of a binder resin containing butyral resin or a mixture of butyral resin with another resin which is compatible with butyral resin.
    Type: Application
    Filed: August 2, 2001
    Publication date: March 14, 2002
    Inventors: Hirofumi Kishikawa, Masato Yamashita, Atsumu Kanda, Hiroshi Ono
  • Surface treatment agent for steel material
    Patent number: 6342554
    Abstract: Disclosed herein is a surface treatment agent for steel, characterized in that, said agent contains 0.1-15% by mass of chromium sulfate and 10-40% by mass of a binder resin containing butyral resin or a mixture of butyral resin with another resin which is compatible with butyral resin.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: January 29, 2002
    Assignees: Sumitomo Metal Industries, Ltd., Shinto Paint Co.
    Inventors: Hirofumi Kishikawa, Masato Yamashita, Atsumu Kanda, Hiroshi Ono