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:
Jan. 31, 2017
Filed:
Mar. 24, 2014
Sumitomo Bakelite Co., Ltd., Shinagawa-ku, JP;
Sho Kubota, Tokyo, JP;
SUMITOMO BAKELITE CO., LTD., Shinagawa-ku, JP;
Abstract
A optical waveguide comprising a core layer having a core portion; a first clad layer formed on one surface of the core layer; a second clad layer formed on another surface of the core layer; and a hollow section penetrating through the second clad layer and the core layer, and extending to a middle portion of the first clad layer, wherein a part of an inner wall surface at the hollow section is configured as an inclined plane which is inclined relative to and intersects with a plane including an interfacial plane between the core layer and the first clad layer, and a minimum radius of curvature at a connection between the inclined plane and other parts of the inner wall surface continuously extending from the inclined plane is 1 to 500 μm as measured at the plane including the interfacial plane.