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. 23, 2002
Filed:
Sep. 20, 2000
Shoichiro Hara, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical fiber reel includes, two optical fiber take-up members taking-up an optical fiber and two flat plate like frame members sandwiching the two optical fiber take-up members between them. The two flat plate like frame members, covering the two optical fiber take-up members, have external circumferential configuration of which diameter is larger than diameter of a circumscribed circle of the two optical take-up members by not less than three times of d of diameter of the optical fiber, and arranged facing each other to make a gap not less than d but less than 2d, each of the two optical fiber take-up members have an external circumferential take-up face and a pair of outer surfaces, and arranged as the pair of outer surfaces being parallel to a flat plate face of the frame members to make a gap of not less than d between each other external circumferential take-up faces of the take-up members. The external circumference of the plane like frame members and external circumferential take-up faces of the optical fiber take-up members have a gap of not less than d between them.