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. 08, 2020
Filed:
Mar. 05, 2019
Applicant:
Agc Inc., Chiyoda-ku, JP;
Inventors:
Seiki Ohara, Tokyo, JP;
Shotaro Takenobu, Tokyo, JP;
Assignee:
AGC Inc., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/30 (2006.01); G02B 6/122 (2006.01); G02B 6/28 (2006.01); G02B 6/38 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G02B 6/30 (2013.01); G02B 6/1221 (2013.01); G02B 6/1228 (2013.01); G02B 6/2821 (2013.01); G02B 6/3885 (2013.01); G02B 2006/12061 (2013.01);
Abstract
The present invention relates to a resin optical waveguide including a core and a cladding having a refractive index lower than that of the core, in which the resin optical waveguide includes, along a light propagation direction, a coupling part at which at least a part of the core is exposed and an optical waveguide part where the whole circumference of the core is covered with the cladding, and the core has a width Wb at an end part of the coupling part at a side of the optical waveguide part being larger than a width Wa of the core at an end part of the coupling part at a side opposite to the optical waveguide part.