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:
Oct. 30, 2018
Filed:
Jul. 20, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Takatsugu Moriya, Tokyo, JP;
Shuzo Iwanaga, Kawasaki, JP;
Shintaro Kasai, Yokohama, JP;
Yoshiyuki Nakagawa, Kawasaki, JP;
Akiko Saito, Tokyo, JP;
Tatsuya Yamada, Kawasaki, JP;
Tomohiro Sato, Tokyo, JP;
Ayako Iwasaki, Yokohama, JP;
Tomoki Ishiwata, Kawasaki, JP;
Koichi Ishida, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid discharging head includes a discharge port that discharges a liquid, a pressure chamber that communicates with the discharge port, and an energy generating element that is disposed in the pressure chamber. In the liquid discharging head, the discharge port is provided with a plurality of projections that project towards a central portion of the discharge port from an inner peripheral edge of the discharge port, and an interval between the projections at a location where the projections are closest to each other is 5 μm or less.