The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 2020
Filed:
Nov. 20, 2017
Nitto Denko Corporation, Ibaraki-shi, JP;
Naoto Konegawa, Ibaraki, JP;
Yuichi Tsujita, Ibaraki, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
Opto-electric hybrid boards are disclosed including an electric circuit board; light-emitting and light-receiving elements which are mounted on a first surface of the electric circuit board; and an optical waveguide having a core for an optical path and formed in a stacked manner on a second surface of the electric circuit board. The core of the optical waveguide includes: end portions formed as light reflecting surfaces for reflecting light to allow the light to propagate between the core and the light-emitting and light-receiving elements; extensions extending from the end portion side of the core toward the light-emitting and light-receiving elements; and a main portion from which the extensions extend. The extensions of the core and the main portion of the core are different from each other in shape of cross-sections perpendicular to an axial direction thereof.