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. 20, 2007
Filed:
May. 29, 2002
Shiro Takahashi, Singapore, SG;
Hisanori Suzuki, Singapore, SG;
Junjie SI, Shanghai, CN;
Myint Myint Aye, Saitama, JP;
Liping Zuo, Singapore, SG;
Hsin Yuan Kenneth Kong, Singapore, SG;
Atsushi Watabe, Kunitachi, JP;
Shiro Takahashi, Singapore, SG;
Hisanori Suzuki, Singapore, SG;
Junjie Si, Shanghai, CN;
Myint Myint Aye, Saitama, JP;
Liping Zuo, Singapore, SG;
Hsin Yuan Kenneth Kong, Singapore, SG;
Atsushi Watabe, Kunitachi, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A functional optical device has cores which are trenches, different portions of the cores being formed from different core materials. The optical device can be formed by forming trencheswithin a substrate (normally a substratecovered by a cladding layer), covering at least part of at least one trenchwith a cover, depositing a first cladding material to fill the trencheswhich are not covered, removing the cover, depositing a second cladding layerof a second cladding material to fill the trencheswhich were previously covered, removing core material outside the trenchesand applying a cladding layer to cover the trenches.