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:
Jan. 24, 1995
Filed:
Jun. 23, 1993
Applicant:
Inventors:
Shigeru Hirai, Kanagawa, JP;
Toshiaki Kakii, Kanagawa, JP;
Shinji Ishikawa, Kanagawa, JP;
Hiroo Kanamori, Kanagawa, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; C03B / ;
U.S. Cl.
CPC ...
385 34 ; 385 11 ; 385 31 ; 385 33 ; 385 96 ; 385 85 ; 65407 ;
Abstract
In an optical fiber functional device for processing a light beam between optical fibers, single-mode optical fibers for processing the light beam are concentrically connected at the mutually opposed ends to convergence-type rod lenses each having a prescribed length and made of a graded-index optical fiber.