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:
Aug. 11, 2009
Filed:
Feb. 23, 2007
Applicants:
Hisako Tonishi, Kariya, JP;
Masashi Tsuda, Ichinomiya, JP;
Inventors:
Hisako Tonishi, Kariya, JP;
Masashi Tsuda, Ichinomiya, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/393 (2006.01);
U.S. Cl.
CPC ...
Abstract
An embodiment of the description relates to an ink-jet recording apparatus which includes an ink cartridge in which ink is stored in an ink chamber, and a mechanism that optically detects the amount of ink remaining in the ink chamber. The receding contact angle of the ink with respect to an inner wall surface of the ink chamber is about 20° or more.