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:
Apr. 24, 2007
Filed:
Jul. 18, 2005
Tatsuo Nanjo, Kanagawa-ken, JP;
Masanori Takenouchi, Kanagawa-ken, JP;
Hajime Yamamoto, Tokyo, JP;
Eiichiro Shimizu, Hong Kong, HK;
Tatsuo Nanjo, Kanagawa-ken, JP;
Masanori Takenouchi, Kanagawa-ken, JP;
Hajime Yamamoto, Tokyo, JP;
Eiichiro Shimizu, Hong Kong, HK;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An unsealing method for unsealing a packaging structure for a liquid container in which the packaging structure includes a covering member having an air vent sealing portion, a liquid supply sealing portion, and a connecting region which covers a connecting side of the liquid container and which connects the air vent and liquid supply scaling portions. The liquid supply sealing portion effects non-adhering sealing, and the connecting portion provides resistance against unsealing of the liquid supply portion. The covering member also has first and second regions which respectively include first and second resistance generation portions for generating resistance against unsealing. According to the unsealing method, the air vent is unsealed, the first resistance generating portion is separated from the liquid container, the liquid supply portion is unsealed, and the second resistance generating portion is separated. By virtue of this arrangement, the liquid container can be unsealed methodically without unexpected unsealings.