Patents by Inventor Toshio Serita

Toshio Serita 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).

  • Lubricant powder for powder metallurgy
    Patent number: 6231635
    Abstract: The invention concerns a lubricant for powder metallurgical compositions containing 10-60% by weight of a lithium salt of a fatty acid; 0-40% by weight of a zinc salt of a fatty acid and 40-90% by weight of a fatty acid bis-amide. 10-60% by weight of the lubricant is made up by the lithium and the zinc salt.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: May 15, 2001
    Assignee: Höganäs AB
    Inventors: Masaaki Suzuki, Toshio Serita, Norio Ukai, Hiroyasu Saitoh