Patents by Inventor Masaki Fukagawa

Masaki Fukagawa 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).

  • Powder marking agent and marking method
    Patent number: 4218362
    Abstract: A powder marking agent comprising a fine powder which comprises, on a total volume basis,(a) about 48% to about 92% of a thermoplastic linear polyester,(b) about 5 to about 30% of a heat-resistant pigment, and(c) about 2 to about 40% of a fluorine-containing polymer,with the total by volume percent of the heat-resistant pigment (b) and the fluorine-containing polymer (c) being about 45% or less and a marking method which comprises applying the powder marking agent described above onto a metal member in a marking pattern.
    Type: Grant
    Filed: November 17, 1977
    Date of Patent: August 19, 1980
    Assignees: Fuji Photo Film Co., Ltd., Chugoku Marine Paints, Ltd.
    Inventors: Satoru Honjo, Kenichi Sawada, Masaki Fukagawa