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:
Jul. 04, 1995
Filed:
Jan. 21, 1994
Applicant:
Inventors:
Eisuke Sasoka, Yokohama, JP;
Hiroshi Suganuma, Yokohama, JP;
Tomoyuki Hattori, Yokohama, JP;
Hiroaki Takimoto, Yokohama, JP;
Assignee:
Soei International Patent Firm, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; B65H / ; C03B / ;
U.S. Cl.
CPC ...
385 99 ; 385 42 ; 385 43 ; 385 51 ; 385 95 ; 385 96 ; 156158 ; 65406 ; 65410 ; 65411 ;
Abstract
The present relates to the protective structure for an optical fiber coupler made from bare fiber parts of a plurality of optical fibers therein, the bare fiber parts being formed by removing the coating of the plurality of optical fibers and comprises a case made of material having a coefficient of thermal expansion equivalent to optical fibers and having space for enclosing the optical fiber coupler, and fiber supporting portions, being arranged inside of the space of the case and being fused with the bare fiber parts.