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. 12, 2019
Filed:
Mar. 08, 2017
Adamant Namiki Precision Jewel Co., Ltd., Tokyo, JP;
Denso Corporation, Kariya-shi, Aichi, JP;
Hiroyuki Fujiwara, Kawaguchi, JP;
Masaru Sasaki, Kawaguchi, JP;
Kaoru Torii, Tokyo, JP;
Ren Watanabe, Toda, JP;
Tadahisa Iikubo, Kawaguchi, JP;
Mitsuhiko Mizuno, Kasugai, JP;
ADAMANT NAMIKI PRECISION JEWEL CO., LTD., Tokyo, JP;
DENSO CORPORATION, Kariya-shi, Aichi, JP;
Abstract
Provided is an optical branching/coupling device in which optical transmission quality is improved by preventing a reduction in optical transmission quality, the reduction being due, for example, to an optical waveguide core affecting a light of another optical waveguide core in the vicinity of a joining section of the two optical waveguide cores. This optical branching/coupling device includes: a first optical waveguide that is provided extending from one end side to other end side; a second optical waveguide that is provided extending on a separate route from the one end side to the other end side, the other end side of the second optical waveguide being joined to the other end side of the first optical waveguide; and a cladding layer that covers the periphery of the first optical waveguide and the second optical waveguide, wherein the first and second optical waveguides comprise a cured product of a photocuring resin.