Patents by Inventor Masakatsu Harada

Masakatsu Harada 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).

  • Method for producing odor-free metallic pigment composition
    Patent number: 5221340
    Abstract: In a method for producing an odor-free metallic pigment composition, a metallic pigment is ground by a wet process. The pigment is then mixed into a molten thermoplastic resin to vaporize any additives in the metallic pigment by the heat of the resin. The pigment may be dried until its solid content becomes 50-99 percent by weight before mixing into the molten thermoplastic resin.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: June 22, 1993
    Assignee: Toyo Aluminum Kabushiki Kaisha
    Inventors: Fumiaki Nagase, Masakatsu Harada, Takashi Ohkuma, Yasufumi Uemura, Hideji Murabayashi, Hiroo Usami