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. 05, 2019
Filed:
Oct. 21, 2016
Nissan Chemical Industries, Ltd., Tokyo, JP;
Takaaki Ishigure, Mitaka, JP;
Sho Yoshida, Adachi-ku, JP;
Yuki Saito, Funabashi, JP;
Kazuki Yasuhara, Yokohama, JP;
Takehiro Nagasawa, Funabashi, JP;
Kentaro Ohmori, Funabashi, JP;
NISSAN CHEMICAL CORPORATION, Tokyo, JP;
Abstract
A production method for an optical waveguide including: a first step of inserting a needle-like portion at a tip end of an ejection unit into uncured cladding; a second step of moving the needle-like portion in the uncured cladding while ejecting an uncured material from the needle-like portion to form an uncured core surrounded and covered with the uncured cladding; a third step of removing the needle-like portion from the uncured cladding; and a fourth step of curing the uncured cladding and core, wherein the uncured cladding is composed of a composition including a reactive silicone compound composed of a polycondensate of a diarylsilicic acid compound of Formula [1] and an alkoxy silicon compound of Formula [2]Ar—Si(OR)R  [2]and a di(meth)acrylate compound of Formula [3] and the uncured core is composed of a composition including a reactive silicone compound and an aromatic vinyl compound of Formula [4]