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:
Jun. 01, 1999
Filed:
Jan. 07, 1997
Applicant:
Inventor:
Yasuo Fujiwara, Urawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399106 ;
Abstract
A tearable sealing member for unsealably sealing an opening of a developer container for containing a developer for an image forming apparatus includes a seal film for closing the opening, a flexible tape extending along a surface of the seal film, wherein the seal film is an uniaxially orientated foamed resin material and has an average density of not less than 0.65 g/cc and not more than 0.9 g/cc, measured under JIS K6758, and wherein the seal has a heat contraction rate in the orientated direction of not less than 10% and not more than 10%.