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:
Mar. 18, 2014
Filed:
May. 11, 2011
Kimiyuki Hayasaki, Kawasaki, JP;
Takamitsu Tokuda, Yokohama, JP;
Kengo Umeda, Tokyo, JP;
Nobuyuki Hirayama, Fujisawa, JP;
Takaaki Yamaguchi, Yokohama, JP;
Yoshiyuki Imanaka, Kawasaki, JP;
Tatsuo Furukawa, Zama, JP;
Kimiyuki Hayasaki, Kawasaki, JP;
Takamitsu Tokuda, Yokohama, JP;
Kengo Umeda, Tokyo, JP;
Nobuyuki Hirayama, Fujisawa, JP;
Takaaki Yamaguchi, Yokohama, JP;
Yoshiyuki Imanaka, Kawasaki, JP;
Tatsuo Furukawa, Zama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid discharge head includes a liquid discharge head substrate including a discharge port through which a liquid is discharged, and a plurality of energy generating elements that generate energy for discharging the liquid from the discharge port, and a circuit board having flexibility including a pair of differential transmission lines for transmitting differential transmission signals used as logical signals for driving the energy generating elements, to the liquid discharge head substrate, and a voltage supply line for supplying a voltage applied to the energy generating elements to obtain the energy, to the liquid discharge head substrate, wherein the pair of differential transmission lines is provided on one surface of the circuit board, and the voltage supply line is provided on the other surface of the circuit board, which is on a reverse side of the one surface.