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:
Sep. 16, 1997
Filed:
Sep. 28, 1995
Applicant:
Inventors:
Kohji Minami, Chiba, JP;
Hiroyuki Tokita, Chiba, JP;
Keiichi Ishiyama, Chiba, JP;
Nobuo Suzuki, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
451 41 ; 451 41 ;
Abstract
A method of polishing the end face of a ferrule comprises providing an optical connector having the ferrule and an optical fiber fixed to the ferrule. An abrasive sheet film is provided which comprises a resin film having a layer of alumina type particles disposed on a surface thereof. The end face of the ferrule is polished by pressing it against the abrasive sheet film and sliding the end face of the ferrule relative the abrasive sheet film while supplying an abrasive comprised of colloidal particles of SiO.sub.2 on the surface of the abrasive sheet film.