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:
Mar. 19, 2013
Filed:
Jun. 12, 2009
Applicant:
Ryusuke Naitou, Ibaraki, JP;
Inventor:
Ryusuke Naitou, Ibaraki, JP;
Assignee:
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for manufacturing an optical waveguide includes: step A of forming a first resin layerby allowing a first liquid-state resin to flow to be extended in a manner so as to bury and enclose cores; step B of forming a second resin layerby allowing a second liquid-state resin having a viscosity higher than that of the first liquid-state resin to flow to be extended on the first resin layer, after or while the first resin layeris heated; and step C of forming an over-cladding layerby curing the first resin layerand the second resin layer