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:
Oct. 19, 1993
Filed:
Apr. 15, 1992
Applicant:
Inventors:
Hiroyuki Sasaki, Tokyo, JP;
Masato Shimamura, Tokyo, JP;
Yoshinori Namihira, Hachioji, JP;
Yoshihiro Yoshida, Omiya, JP;
Assignees:
Japan Aviation Electronics Industry Limited, Tokyo, JP;
Kokusai Denshin Denwa Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
385 43 ;
Abstract
In an optical fiber coupler there is provided, in an optical coupling portion between cores of two partly fused together and extended optical fiber, an optical coupling control portion which has a refractive index different from those of claddings covering the cores.
Sasaki, Hiroyuki. (1993). Optical fiber coupler and its manufacturing method (U.S. Patent No. 5255335). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5255335
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile