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:
Dec. 04, 2001
Filed:
Jun. 07, 1995
Masahiko Higuma, Togane, JP;
Jun Kawai, Tokyo, JP;
Yohei Sato, Yokohama, JP;
Yoichi Taneya, Yokohama, JP;
Hiroshi Sugitani, Machida, JP;
Tokuya Ohta, Yokohama, JP;
Kazuaki Masuda, Kawasaki, JP;
Hiroyuki Ishinaga, Tokyo, JP;
Torachika Osada, Yamato, JP;
Takashi Saito, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink tank for storably receiving ink therein comprises a housing having an ink feeding port to allow ink to be storably received therein and fed through the ink feeding port, an ink absorbing member accommodated in the housing for retaining ink, the ink absorbing member being a porous block with a first surface facing the ink feeding port and having a three-dimensional net-shaped structure, and comprising a foamed block molded of a condensate of a compound having an amino group and a formaldehyde as base materials. The ink absorbing member is pressed toward the ink feeding port by pressing substantially an entire area of a second surface of the ink absorbing member opposite its first surface.