Patents Assigned to Photonics Electronics Technology Research Association (PETRA)
  • Signal conversion device
    Patent number: D706733
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: June 10, 2014
    Assignee: Photonics Electronics Technology Research Association (PETRA)
    Inventors: Ichiro Ogura, Koichi Takemura
  • Signal conversion device
    Patent number: D707193
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: June 17, 2014
    Assignee: Photonics Electronics Technology Research Association (PETRA)
    Inventors: Ichiro Ogura, Koichi Takemura
  • Signal conversion device
    Patent number: RE45712
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: October 6, 2015
    Assignee: Photonics Electronics Technology Research Association (PETRA)
    Inventors: Ichiro Ogura, Koichi Takemura
  • Signal conversion device
    Patent number: RE45741
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: October 13, 2015
    Assignee: Photonics Electronics Technology Research Association (PETRA)
    Inventors: Ichiro Ogura, Koichi Takemura