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. 13, 2007
Filed:
Jan. 21, 2005
Takeo Seino, Nagano, JP;
Hitotoshi Kimura, Nagano, JP;
Taku Ishizawa, Nagano, JP;
Yasunao Uehara, Nagano, JP;
Masahide Matsuyama, Nagano, JP;
Takeo Seino, Nagano, JP;
Hitotoshi Kimura, Nagano, JP;
Taku Ishizawa, Nagano, JP;
Yasunao Uehara, Nagano, JP;
Masahide Matsuyama, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A bypass flowing passage communicating with the inside of a bag part not through a second valve mechanism is provided for an outlet part, and ink can be filled from the outlet part into the bag partdespite the second valve mechanism V. After an ink pack is housed in an inner case ink is filled into the ink pack. When a first seal film is welded to the inner case, the ends of the bag part are caught in a cartridge case because the bag part is not bulky. Therefore, the maximum amount of ink for the inner volume of the cartridge case can be filled. Further, since a bypass flowing passage is blocked after ink has filled the ink pack, contaminating of air bubbles into the bag part through the bypass flowing passage is prevented.