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, 2012
Filed:
Feb. 07, 2008
Masahide Matsuyama, Higashichikuma-gun, JP;
Yasuhiro Ogura, Matsumoto, JP;
Yasunao Uehara, Matsumoto, JP;
Yuichi Seki, Matsumoto, JP;
Masahide Matsuyama, Higashichikuma-gun, JP;
Yasuhiro Ogura, Matsumoto, JP;
Yasunao Uehara, Matsumoto, JP;
Yuichi Seki, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A piercing method for forming an opening in a cover film welded to an ink cartridge in such a manner as to cover first and second ink inlet holes is provided. The method includes: forming a cut in the cover film in such a manner as to provide a cut piece supported in a cantilever manner in a covering area of the cover film that covers the first and second ink inlet hole; and forming the opening in the cover film by causing the cut piece to hang down in the first and second ink inlet holes.