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. 18, 2014
Filed:
Nov. 22, 2011
Daichi Sakai, Ibaraki, JP;
Toshihiro Kuroda, Ibaraki, JP;
Hiromichi Aoki, Ibaraki, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
There are provided an optical waveguide including: a substrate; a lower clad layer; a core patternwith a taper in thickness direction; and an upper clad layer, the lower clad layer, the core pattern, and the upper clad layer being sequentially laminated on the substrate, in which the lower clad layerhas a cutting part. There also provided with an optical waveguide including: a substrate; a lower clad layer; a core patternwith a taper in thickness direction; and an upper clad layer, the lower clad layer, the core pattern, and the upper clad layer being sequentially laminated on the substrate, in which the lower clad layerhas a dummy part on the top. These optical waveguides can secure alignment tolerance when connected with an optical element.