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:
Sep. 10, 2013
Filed:
Jan. 31, 2011
Naoya Tsukamoto, Kawasaki, JP;
Hiroyuki Yamamoto, Kawasaki, JP;
Jun Hinami, Kawasaki, JP;
Takeshi Shibata, Yokohama, JP;
Hirotaka Miyazaki, Yokohama, JP;
Yoshiaki Kurihara, Kawasaki, JP;
Ryo Shimamura, Yokohama, JP;
Tomohiro Takahashi, Yokohama, JP;
Tatsunori Fujii, Kawasaki, JP;
Masashi Ishikawa, Kawasaki, JP;
Naoya Tsukamoto, Kawasaki, JP;
Hiroyuki Yamamoto, Kawasaki, JP;
Jun Hinami, Kawasaki, JP;
Takeshi Shibata, Yokohama, JP;
Hirotaka Miyazaki, Yokohama, JP;
Yoshiaki Kurihara, Kawasaki, JP;
Ryo Shimamura, Yokohama, JP;
Tomohiro Takahashi, Yokohama, JP;
Tatsunori Fujii, Kawasaki, JP;
Masashi Ishikawa, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The ink jet cartridge includes a tank case that has a space having a opening, a lid that closes the opening, an ink accommodating section that is formed with the space of the tank case and the lid, and an ink absorber that is accommodated in the ink accommodating section. Also, an atmosphere communication port that passes through the lid and a projection section that projects to the space of the tank case are provided in the lid. The ink absorber consists of a fiber aggregate, and a welding section in which the fibers are combined to each other and an unwelded section in which the fibers are not combined to each other are provided on a surface that faces the lid.