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:
Jan. 18, 1994
Filed:
Jun. 21, 1991
Hideo Saikawa, Kawasaki, JP;
Seiichiro Karita, Yokohama, JP;
Toshio Kashino, Chigasaki, JP;
Akio Saito, Hadano, JP;
Hiroshi Nakagomi, Yamato, JP;
Teruo Arashima, Yokohama, JP;
Makiko Kimura, Sagamihara, JP;
Hiroshi Sugitani, Machida, JP;
Yoshifumi Hattori, Yamato, JP;
Masami Ikeda, Tokyo, JP;
Masaaki Izumida, Kawasaki, JP;
Shigeaki Tanaka, Kawasaki, JP;
Nobuyuki Kuwabara, Tokyo, JP;
Asao Saito, Yokohama, JP;
Kazuaki Masuda, Sagamihara, JP;
Tsuyoshi Orikasa, Kasukabe, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet head cartridge include an ink container and a porous material contained in the container for retaining the ink. A process for filling the ink container includes the steps of supplying ink in a quantity greater than that which the porous material can retain through a first port and removing through a second port at least a quantity of ink which the porous material cannot retain. The process can also be performed through a single port. At least one of the ports can also be used for communicating with a recording head portion of the cartridge.