Patents by Inventor Waro Sekimoto

Waro Sekimoto 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).

  • Material for roofing and facing
    Patent number: 5114799
    Abstract: Stainless steel sheets are plated with zinc and further phosphated so as to have chromaticness indices of L=45-53, a=0.0-0.4 and b=1.3-4.4. Thus treated stainless steel sheets have sufficient strength, excellent corrosion resistance and a color well harmonizing with other building materials and environment and do not suffer from color change for a prolonged period of time.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: May 19, 1992
    Assignees: Nisshin Steel Company, Ltd., Shinsei Kogyo Company, Ltd.
    Inventors: Hidetsugu Ohashi, Masayuki Kinugasa, Toshiro Adachi, Akihiro Nonomura, Waro Sekimoto