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:
Feb. 15, 2005
Filed:
Oct. 09, 2003
Teruo Ashikawa, Kanagawa, JP;
Hiroyuki Naito, Kanagawa, JP;
Kiyoo Morita, Kanagawa, JP;
Shozo Onmori, Kanagawa, JP;
Katsuki Asano, Kanagawa, JP;
Masayoshi Moriwaki, Kanagawa, JP;
Teruo Ashikawa, Kanagawa, JP;
Hiroyuki Naito, Kanagawa, JP;
Kiyoo Morita, Kanagawa, JP;
Shozo Onmori, Kanagawa, JP;
Katsuki Asano, Kanagawa, JP;
Masayoshi Moriwaki, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
In a magnetic tape cassette, a top end portion of a reel urging plate spring for urging a tape reel is subjected to a surface treatment to prevent from a friction. A distance between a couple of flanges of the tape reel is selected to keep a form of the wound magnetic tape, and to prevent the tape running from being disturbed by the increases of a contract resistance of the tape edges to the flanges. Additionally, positioning portions for positioning the magnetic tape cassette relative to a magnetic tape drive device are formed of a differential resin from the resin of the remaining part of the cassette case. Additionally, at least one of both end faces of each guide roller is surface treated so that the end face is not worn through its contact with the cassette half. Further, an information presenting section for displaying variable information is provided at a location other than label areas of the tape cassette.