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:
May. 23, 1989
Filed:
Sep. 28, 1987
Applicant:
Inventors:
Minoru Watanabe, Yokohama, JP;
Hiroshi Yokota, Yokohama, JP;
Shuzo Suzuki, Yokohama, JP;
Hiroshi Suganuma, Yokohama, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65-311 ; 65-42 ; 65-43 ; 427163 ;
Abstract
A multi-core optical fiber with improved dimensional accuracy is produced by a method comprising
Watanabe, Minoru. (1989). Method for producing multi-core optical fiber (U.S. Patent No. 4832720). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4832720
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile