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:
Oct. 04, 2005
Filed:
Oct. 29, 2003
Kenichi Ohkuwa, Iwakura, JP;
Eiji Yasui, Nakashima-gun, JP;
Kazunori Toyama, Nagoya, JP;
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
A toner supply roll free from occurrence of an imaging failure. The toner supply roll comprises a shaft () and a urethane foam layer () provided on an outer peripheral surface of the shaft (), wherein when the urethane foam layer is compressed to a depth of 1 mm from an outermost surface thereof during compression thereof to a depth of 2 mm, a stress Foccurs in the urethane foam layer and when the urethane foam layer is decompressed to a depth of 1 mm after the compression thereof to a depth of 2 mm, a stress Foccurs in the urethane foam layer, the urethane foam layer satisfies a relation represented by the following expression (1) at a temperature of 23±3° C. at a humidity of 50±10%:≧0.7  (1)the stresses Fand Fbeing expressed by a unit of Pa.