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:
Dec. 10, 2013
Filed:
Aug. 21, 2009
Haruo Ooizumi, Hyogo, JP;
Masatoshi Tanaka, Hyogo, JP;
Masayoshi Hachiwaka, Hyogo, JP;
Takaharu Kinoshita, Hyogo, JP;
Mamoru Hashimoto, Hyogo, JP;
Haruo Ooizumi, Hyogo, JP;
Masatoshi Tanaka, Hyogo, JP;
Masayoshi Hachiwaka, Hyogo, JP;
Takaharu Kinoshita, Hyogo, JP;
Mamoru Hashimoto, Hyogo, JP;
Mitsubishi Cable Industries, Ltd., Tokyo, JP;
Abstract
An optical fiber () includes: a core (); a first cladding () surrounding the core () and having a lower refractive index than the core (); and a second cladding () surrounding the first cladding () and having a lower refractive index than the first cladding (). The first cladding () is doped with light attenuating dopant so that a concentration of the light attenuating dopant in the first cladding () increases from an inner surface of the first cladding () toward an outer surface of the first cladding ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile