Patents by Inventor Naokata Seki

Naokata Seki 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).

  • Cubic boron nitride base ultra-high pressure sintered material cutting tip
    Patent number: 7112235
    Abstract: A cutting insert exhibiting excellent chipping resistance made of cubic boron nitride based ultra-high pressure sintered material.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: September 26, 2006
    Assignee: Mitsubishi Materials Corporation
    Inventors: Itsurou Tajima, Naokata Seki, Kazuo Yamamoto
  • Cubic boron nitride base ultra-high pressure sintered material cutting tip
    Publication number: 20050145066
    Abstract: A cutting insert exhibiting excellent chipping resistance made of cubic boron nitride based ultra-high pressure sintered material.
    Type: Application
    Filed: February 28, 2003
    Publication date: July 7, 2005
    Applicant: MITSUBISHI MATERIALS CORP.
    Inventors: Itsurou Tajima, Naokata Seki, Kazuo Yamamoto