Patents by Inventor Yuzoh Ohsawa

Yuzoh Ohsawa 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).

  • Artificial diamond forming method
    Patent number: 5066515
    Abstract: A method of forming an artificial diamond, comprising applying a laser beam to a glassy solid carbon material, while moving a point on the glassy solid carbon material at which the laser beam is applied, to form a locally fused portion thereon, whereby every part of the locally fused portion is cooled as the point moves away therefrom. During cooling of the locally fused portion, an artificial diamond is formed in adjacent regions on both sides of the solidified locally fused portion.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: November 19, 1991
    Assignee: Mitsubishi Materials Corporation
    Inventor: Yuzoh Ohsawa