Patents by Inventor Yoshihiki Katayama

Yoshihiki Katayama 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).

  • Push button
    Patent number: 7193170
    Abstract: A push button includes a button main body portion which is provided between a packaging substrate placed under it and a casing portion located above it, a light source placed on the packaging substrate, and a light-guide portion which guides light from the light source to an outer periphery of the button main body portion by reflection.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: March 20, 2007
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Yoshihiki Katayama, Hiroomi Miyaki, Norio Joichi, Youbao Peng, Yoshihito Sasamoto, Takashi Nara