Signal conversion device
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Description
The dashed-dot-dashed lines represent the boundary line of the claimed design. The even spaced broken lines shown in the drawings represent portions of the signal conversion device that form no part of the claimed design.
Claims
The ornamental design for signal conversation device, as shown and described.
Referenced Cited
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Patent History
Patent number: RE45741
Type: Grant
Filed: Sep 18, 2014
Date of Patent: Oct 13, 2015
Assignee: Photonics Electronics Technology Research Association (PETRA) (Tokyo)
Inventors: Ichiro Ogura (Tokyo), Koichi Takemura (Tokyo)
Primary Examiner: Phillip S Hyder
Application Number: 29/474,435
Type: Grant
Filed: Sep 18, 2014
Date of Patent: Oct 13, 2015
Assignee: Photonics Electronics Technology Research Association (PETRA) (Tokyo)
Inventors: Ichiro Ogura (Tokyo), Koichi Takemura (Tokyo)
Primary Examiner: Phillip S Hyder
Application Number: 29/474,435
Classifications
Current U.S. Class:
Semiconductor, Transistor Or Integrated Circuit (24) (D13/182)