Patents by Inventor Shigeaki Kanbe

Shigeaki Kanbe 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 nitriding-processing iron group series alloy substrate
    Patent number: 6602353
    Abstract: A processing method for nitriding an iron group series alloy substrate, or processing subject, containing an alloy element for forming nitride by plasma nitriding treatment including a passivated membrane removing treatment step. The passivated membrane removing treatment is performed by hydrogen sputtering under reduced pressure. It is desirable that this hydrogen sputtering is initiated from a normal temperature in a process of raising a temperature of a processing subject for plasma nitriding.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: August 5, 2003
    Assignee: Cemm Co., Ltd.
    Inventors: Shigeaki Kanbe, Hironori Hukuta, Kousuke Katou