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:
Nov. 17, 2020
Filed:
Sep. 20, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Ryo Kasai, Tokyo, JP;
Takashi Sugawara, Yokohama, JP;
Masafumi Morisue, Tokyo, JP;
Takuro Yamazaki, Inagi, JP;
Yoshiyuki Nakagawa, Kawasaki, JP;
Kazuhiro Yamada, Yokohama, JP;
Tomoko Kudo, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A liquid ejection head is manufactured by forming on a substrate an energy generating element for ejecting a liquid, an integrated circuit for driving the energy generating element, a supply port for the liquid so as to penetrate through the substrate, an electrode for generating a liquid flow, and a flow path forming member having an ejection orifice for ejecting the liquid such that a flow path for the liquid is formed between the substrate and the flow path forming member. The electrode is formed over high and low of a stepped shape formed on the substrate in at least one step selected from the steps of forming the energy generating element, forming the integrated circuit and forming the supply port.