Patents by Inventor Kenji Chonabayashi

Kenji Chonabayashi 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).

  • Publication number: 20100163544
    Abstract: A tube for fixation, which has increased durability and a method of producing the same are provided. Forming by spinning is carried out so as to thin the thickness A of a side wall of a bottomed prime tube 1 of a plastically deformable metal to a thickness of 20 to 50 ?m while rotating the bottomed prime tube 1 about the axis thereof and a metal original form 4 is formed. The metal original form 4 formed by spinning is cut to form a metal tube 6. The surface 6a of the metal tube 6 is sandblasted to impart residual compression stress to the surface 6a and to roughen the same. The treated surface is covered with a fluorocarbon resin film 7. The fluorocarbon resin film 7 is then heated to be heat-shrunk and the fluorocarbon resin film 7 is formed on the metal tube 6. Thus, a tube for fixation 8 is formed.
    Type: Application
    Filed: June 7, 2007
    Publication date: July 1, 2010
    Applicant: K.K. ENDO SEISAKUSHO
    Inventors: Kiyotaka Shirai, Takashi Yaoita, Kenji Chonabayashi