Patents by Inventor Yoshihiko Sawazaki

Yoshihiko Sawazaki 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 composition for hot plastic working
    Patent number: 5346634
    Abstract: A lubricant composition useful for hot plastic working of metal material comprises 100 parts by weight of graphite particles and 2 to 100 parts by weight of particles of at least one metal oxide selected from oxides of Sn, Pb, Zn, Ca, Cu and Al and having an average size of 0.01 to 20.0 .mu.m.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: September 13, 1994
    Assignee: Nihon Parkerizing Co., Ltd.
    Inventors: Yoshihiko Sawazaki, Yasuo Okumura, Nobuichi Arai