Patents by Inventor Katsushi Matsushima

Katsushi Matsushima 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).

  • Fastener for ornaments having a pin
    Patent number: 8424174
    Abstract: A fastener for ornaments includes a housing 12 having a pin passing hole 16 and an opening portion 19. A guide 22 has a small diameter portion 23a at the pin passing hole 16 side. A movable operating body 32 has a grip member 34 protruded to an exterior from the opening portion 19 at one end 33a of a column portion 33 and having, at another end 33b, a small ball holder portion 35, with which in a latched state, a surface at a small ball 46 side of its outer peripheral surface 37 closely contacts an inner peripheral surface 24 of the guide 22. A coil spring 52 pressingly urges the movable operating body 35 in a pin clamping direction. A plurality of small balls 46 disposed in the movable operating body clamp an inserted pin (P).
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: April 23, 2013
    Inventors: Eri Kikunaga, Katsushi Matsushima
  • Fastener for ornaments having a pin
    Publication number: 20110164947
    Abstract: The object of the present invention is to provide a fastener for ornaments with a pin that enables smooth insertion and reliable clamping of the pin by the following solution means.
    Type: Application
    Filed: February 28, 2011
    Publication date: July 7, 2011
    Inventors: Eri Kikunaga, Katsushi Matsushima