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:
Dec. 15, 2020
Filed:
Oct. 30, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Takamitsu Tokuda, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An element substrate including heaters, drivers for each heater, and a diode, and connected to an external apparatus having a circuit for detecting a temperature based on a detection signal from the diode, comprises: a first wiring grounded, connected to one end of the diode, and serving as a reference voltage of the detection signal; a second wiring connected to the first wiring near the diode; a first pad connected to the first wiring; and a second pad connected to the second wiring. When the substrate is connected to the apparatus, a wiring serving as a reference voltage for a side where the detection signal of the circuit of the apparatus is inputted is connected to the second pad via the first pad connected to a ground serving as a reference voltage of the apparatus.