Patents by Inventor Masashi Akai

Masashi Akai 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 of producing a compact of amorphous alloys
    Patent number: 4921410
    Abstract: A method of producing a compact of amorphous alloy, comprising the steps of, preparing a billet by filling a container made of a ductile metal with powder of the amorphous alloy, plastically working said billet at a temperature higher than plasticity transition temperature of the amorphous alloy but less than crystallization temperature of said alloy so that both a shear strain of not less than about 0.7 but less than 1.8 and a stress not less than about 90 Kgf/mm.sup.2 and less than 400 Kgf/mm.sup.2 are applied to the amorphous alloy powder filled in the container.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: May 1, 1990
    Assignee: Nippondenso Co., Ltd.
    Inventors: Yoshihito Kawamura, Masashi Akai, Makoto Takagi