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. 25, 2010
Filed:
Mar. 22, 2007
Hiroshi Takabayashi, Atsugi, JP;
Hideo Kanno, Yokohama, JP;
Takatsuna Aoki, Yokohama, JP;
Seiichiro Karita, Toda, JP;
Hiroshi Takabayashi, Atsugi, JP;
Hideo Kanno, Yokohama, JP;
Takatsuna Aoki, Yokohama, JP;
Seiichiro Karita, Toda, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A compact and highly reliable recording head enabling precise detection of temperature information for each nozzle and rapid as well as highly accurate detection of nozzles with a discharge defect can be achieved. A plurality of electrothermal transducing members is provided on a substrate to generate heat energy for discharging liquid from discharge ports. A temperature detecting element formed immediately under each electrothermal transducing member to sandwich an insulating film and a temperature detecting circuit for detecting temperature information from each temperature detecting element are also provided.