Patents by Inventor Tetsuro Sakurai

Tetsuro Sakurai 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 growing diamond and cubic boron nitride crystals
    Patent number: 6627168
    Abstract: An object of the present invention is to provide a method for producing diamond and cubic boron nitride crystals having excellent mechanical strength and high regularity in particle size with high productivity, wherein seed crystals are efficiently placed in a regular pattern on a supporting plate or a raw material plate.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: September 30, 2003
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Hirohiko Ohtsubo, Tetsuro Sakurai