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. 08, 2019
Filed:
Feb. 14, 2017
Applicant:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Inventors:
Sho Yakabe, Yokohama, JP;
Takuro Watanabe, Yokohama, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/36 (2006.01); G02B 6/38 (2006.01); G02B 6/32 (2006.01);
U.S. Cl.
CPC ...
G02B 6/385 (2013.01); G02B 6/32 (2013.01); G02B 6/3826 (2013.01); G02B 6/3834 (2013.01); G02B 6/3853 (2013.01); G02B 6/3885 (2013.01); G02B 6/3644 (2013.01); G02B 6/3672 (2013.01);
Abstract
An optical connector ferrule includes optical fiber holding hole holding an inserted optical fiber, a ferrule end face facing a coupled-side optical connector ferrule, a lens structure provided on an axis line of the optical fiber holding hole on the ferrule end face, and an inspection hole formed along the optical fiber holding hole. The ferrule end face is flat on at least an axis line of the inspection hole, and refractive-index distribution in an area between the ferrule end face and a back side thereof is uniform.