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:
Sep. 14, 2021
Filed:
Aug. 22, 2018
Applicant:
Nitto Denko Corporation, Osaka, JP;
Inventors:
Naoto Konegawa, Osaka, JP;
Yuichi Tsujita, Osaka, JP;
Assignee:
NITTO DENKO CORPORATION, Osaka, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/122 (2006.01); G02B 6/13 (2006.01); G02B 6/42 (2006.01); G02B 6/132 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G02B 6/1228 (2013.01); G02B 6/122 (2013.01); G02B 6/13 (2013.01); G02B 6/132 (2013.01); G02B 6/4201 (2013.01); G02B 6/4293 (2013.01); G02B 6/12004 (2013.01);
Abstract
An optical waveguide includes a core extending in a transmission direction of light, a clad covering the core along the transmission direction, and a mixing layer containing a material for the core and a material for the clad on the interface between the core and the clad, and the mixing layer includes a plurality of regions each having a different thickness in the transmission direction.