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. 10, 1992
Filed:
Sep. 19, 1990
Applicant:
Inventors:
Hiroyuki Sasaki, Tokyo, JP;
Masato Shimamura, Tokyo, JP;
Yoshiaki Takeuchi, Mito, JP;
Hiroaki Hanafusa, Mito, JP;
Juichi Noda, Mito, JP;
Assignees:
Japan Aviation Electronics Industry Limited, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 43 ; 385 51 ;
Abstract
Two single mode optical fibers are stretched to form prestretched portions of different diameters, and then the optical fibers are fused together at their prestretched portions to form a coupling region which is stretched to obtain a wide-band optical fiber coupler of a desired splitting ratio.
Sasaki, Hiroyuki. (1992). Wide-band optical fiber coupler and its manufacturing method (U.S. Patent No. 5095516). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5095516
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile