Patents by Inventor Kenji Hirakuri

Kenji Hirakuri 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 forming diamond-like carbon film
    Patent number: 8394455
    Abstract: Provided is a method for forming a diamond-like carbon (DLC) film capable of enhancing the adhesion strength of a diamond-like carbon (DLC) film by simple steps. A surface of a substrate 11 made of polytetrafluoroethylene (PTFE) is modified by plasma radiation, and a diamond-like carbon film 12 is formed on the modified PTFE substrate 11 surface by chemical vapor deposition.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: March 12, 2013
    Assignee: Tokyo Denki University
    Inventors: Kenji Hirakuri, Kazuhide Ozeki
  • METHOD FOR FORMING DIAMOND-LIKE CARBON FILM
    Publication number: 20090130325
    Abstract: Provided is a method for forming a diamond-like carbon (DLC) film capable of enhancing the adhesion strength of a diamond-like carbon (DLC) film by simple steps. A surface of a substrate 11 made of polytetrafluoroethylene (PTFE) is modified by plasma radiation, and a diamond-like carbon film 12 is formed on the modified PTFE substrate 11 surface by chemical vapor deposition.
    Type: Application
    Filed: July 17, 2008
    Publication date: May 21, 2009
    Inventors: Kenji Hirakuri, Kazuhide Ozeki