Signal conversion device
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Description
Claims
The ornamental design for a signal conversion device, as shown and described.
Referenced Cited
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Patent History
Patent number: RE45712
Type: Grant
Filed: Sep 18, 2014
Date of Patent: Oct 6, 2015
Assignee: Photonics Electronics Technology Research Association (PETRA) (Tokyo)
Inventors: Ichiro Ogura (Tokyo), Koichi Takemura (Tokyo)
Primary Examiner: Phillip S Hyder
Application Number: 29/474,434
Type: Grant
Filed: Sep 18, 2014
Date of Patent: Oct 6, 2015
Assignee: Photonics Electronics Technology Research Association (PETRA) (Tokyo)
Inventors: Ichiro Ogura (Tokyo), Koichi Takemura (Tokyo)
Primary Examiner: Phillip S Hyder
Application Number: 29/474,434
Classifications
Current U.S. Class:
Semiconductor, Transistor Or Integrated Circuit (24) (D13/182)