Production method of optical waveguide

US8961839B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8961839-B2
Application numberUS-4835208-A
CountryUS
Kind codeB2
Filing dateMar 14, 2008
Priority dateMay 25, 2007
Publication dateFeb 24, 2015
Grant dateFeb 24, 2015

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Abstract

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A production method of an optical waveguide includes: preparing a laminated body that includes a first clad layer and at least a core layer laminated on the first clad layer; forming a light propagating optical waveguide core by cutting the core layer by use of a dicing saw from a side where the core layer is laminated while intruding an edge of a blade portion of the dicing saw into the first clad layer so as to partially cut the first clad layer; and embedding at least a cut portion of the laminated body with a second clad layer.

First claim

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What is claimed is: 1. A production method of an optical waveguide, comprising: preparing a laminated body that comprises a first clad layer having a thickness of 30 μm to 150 μm and at least a core layer laminated on the first clad layer; forming a light propagating optical waveguide core by cutting through the core layer by use of a dicing saw from a side where the core layer is laminated while intruding an edge of a blade portion of the dicing saw into the first clad layer so…

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What does patent US8961839B2 cover?
A production method of an optical waveguide includes: preparing a laminated body that includes a first clad layer and at least a core layer laminated on the first clad layer; forming a light propagating optical waveguide core by cutting the core layer by use of a dicing saw from a side where the core layer is laminated while intruding an edge of a blade portion of the dicing saw into the first …
Who is the assignee on this patent?
Suzuki Toshihiko, Shimizu Keishi, Yatsuda Kazutoshi, and 4 more
What technology area does this patent fall under?
Primary CPC classification G02B6/13. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).