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:
Nov. 25, 2003
Filed:
Dec. 26, 2002
Hidetoshi Kawasaki, Kanagawa, JP;
Kazunori Mizuno, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A photographic film cartridge includes a light-shielding cloth. The light-shielding cloth is subjected to napping with a coarse napping machine and then napping with a fine napping machine. The napping machines have napper rollers including a pile roller and a counter roller. The rotational speed of the pile roller of the fine napping machine is higher than that of the pile roller of the coarse napping machine, and the rotational speed of the counter roller of the coarse napping machine is higher than that of the counter roller of the fine napping machine. The napping is carried out so that the cloth thickness obtained by the fine napping machine is less than the cloth thickness obtained by the coarse napping machine. A further napping is carried out using the fine napping machine so that the cloth thickness is greater than that obtained by the coarse napping machine.