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:
Mar. 19, 2002
Filed:
Apr. 14, 2000
Akira Wakabayashi, Kanagawa, JP;
Yukiya Shimizu, Kanagawa, JP;
Eiji Suzuki, Kanagawa, JP;
Masayuki Kubota, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A photo film cassette includes a spool core ( ) on which photo film is wound in a form of a roll. A cassette shell ( ) contains the spool core in rotatable fashion. In each of a pair of disks ( ), a bearing hole ( ) is formed. The disks are secured to first and second ends of the spool core, and regulate edges of the photo film. To produce at least one kind of disk, a continuous sheet ( ) of thermoplastic synthetic resin is partially masked with a mask plate ( ). A portion of the sheet emerging out of the mask plate is heated at temperature higher than a softening point of the sheet. The emerging portion is subjected to vacuum/air-pressure forming, so as to form a disk-like portion ( ) in the sheet. The bearing hole and a contour of the disks is cut in the disk-like portion, to produce the disks.