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:
Apr. 08, 2003
Filed:
Apr. 24, 2001
Yasuhiro Fukutomi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A structure for shielding a stray light in an optical waveguide module is composed of an optical waveguide substrate supported in an optical waveguide module package, an optical waveguide formed on the optical waveguide substrate, a LD mounted on the optical waveguide substrate, an optical fiber-placement section formed on the optical waveguide substrate, an optical fiber situated on the optical fiber-placement section, a WDM filter formed on the optical waveguide substrate, a PD-mounting carrier situated behind the WDM filter, a PD mounted on the PD-mounting carrier, a metallic layer evaporated on the WDM filter, and a pin hole formed on the metallic layer at nearly a center thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile