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:
May. 01, 2001
Filed:
Sep. 22, 1997
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 includes a housing and an ink absorbing member accommodated in the housing. The ink absorbing member is constructed using a water jet cutter. The ink absorbing member is a thermosetting foamed block having a porous three-dimensional divergent circuit network; the foamed block is molded of a condensate comprising a compound having an amino group and a formaldehyde. The foamed block is formed for placement in the housing by actuating the water jet cutter and worked by actuating the water jet cutter to provide slits or holes in the ink absorbing member different from pores of the foamed block.