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:
Jun. 03, 2014
Filed:
Jun. 10, 2009
Masataka Sakurai, Kawasaki, JP;
Tatsuo Furukawa, Zama, JP;
Hidenori Watanabe, Zama, JP;
Nobuyuki Hirayama, Fujisawa, JP;
Ryo Kasai, Setagaya-ku, JP;
Masataka Sakurai, Kawasaki, JP;
Tatsuo Furukawa, Zama, JP;
Hidenori Watanabe, Zama, JP;
Nobuyuki Hirayama, Fujisawa, JP;
Ryo Kasai, Setagaya-ku, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An inkjet recording head substrate having an electrothermal transducer for generating thermal energy used to discharge ink and a drive element for driving the electrothermal transducer mounted thereon includes a first circuit portion for outputting selection signals for selecting the electrothermal transducer to be driven at a amplitude level of a second voltage higher than a first voltage based on an input signal of the amplitude level of the first voltage, a second circuit portion for inputting the selection signals from the first circuit portion and controlling the drive element corresponding to the electrothermal transducer to be driven based on the selection signals subject to the second voltage, and a plurality of signal lines for transmitting the selection signals between the first and second circuit portions.