Patents by Inventor Toshiaki Cho

Toshiaki Cho 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).

  • Process for making cutting insert with titanium carbide coating
    Patent number: 4830886
    Abstract: In a process for preparing a coated cemented carbide cutting insert, a layer of titanium carbide containing eta phase is first vapor deposited directly adjacent a cobalt cemented tungsten carbide substrate and the eta phase is then removed by contacting the titanium carbide surface with a carburizing gas under suitable conditions to convert the eta phase to elemental cobalt and tungsten carbide.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: May 16, 1989
    Assignee: GTE Valenite Corporation
    Inventors: Toshiaki Cho, Krishnan Narasimhan, Deepak G. Bhat