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. 21, 2002
Filed:
Nov. 02, 1998
Noribumi Koitabashi, Yokohama, JP;
Masami Ikeda, Yokohama, JP;
Sadayuki Sugama, Tsukuba, JP;
Naohito Asai, Yokohama, JP;
Hiromitsu Hirabayashi, Yokohama, JP;
Tsutomu Abe, Isehara, JP;
Hiroshi Sato, Yokohama, JP;
Shigeyasu Nagoshi, Kawasaki, JP;
Eiichiro Shimizu, Urawa, JP;
Masahiko Higuma, Tohgane, JP;
Yuji Akiyama, Yokohama, JP;
Hitoshi Sugimoto, Kawasaki, JP;
Miyuki Matsubara, Tokyo, JP;
Shinichi Sato, Kawasaki, JP;
Fumihiro Gotoh, Yokohama, JP;
Masaya Uetsuki, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink containing apparatus for containing ink includes a negative pressure producing material; a first container for containing the negative pressure producing material, the first container having an air vent and a supply port for supplying the ink out; a second container for containing ink; a communication part for communication between bottom portions of the first and second containers; and ribs for introducing ambient air adjacent the air vent for introducing air into the communication part.