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:
Jul. 29, 2003
Filed:
Apr. 27, 2000
Hajime Yamamoto, Yokohama, JP;
Shozo Hattori, Tokyo, JP;
Eiichiro Shimizu, Yokohama, JP;
Hiroshi Koshikawa, Kawasaki, JP;
Hiroki Hayashi, Kawasaki, JP;
Kenji Kitabatake, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid supply system includes a liquid supply container provided with a liquid supply portion for supplying liquid to outside; and a detector which detects presence or absence of the liquid in the liquid supply container, using an electrostatic capacity between the liquid in the liquid supply container and the electrode. The electrode is disposed to be parallel with and spaced from a bottom surface of the liquid supply container, and the bottom surface is inclined relative to a horizontal plane from one end to another end of the liquid supply container, and has a connecting portion at a lower side end.