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:
Sep. 10, 2019
Filed:
May. 23, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Yasunori Takei, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ejection port includes a first ejection port that is an opening portion formed on an outer surface side of a recessed portion formed in an outer surface of a nozzle plate, a second ejection port positioned on a bottom surface side of the recessed portion, the second ejection port including an opening portion that is smaller than the first ejection port, and a plurality of protrusions that extend from an outer edge portion of the first ejection port towards a center portion of the second ejection port through the second ejection port, in which a distance between tip portions of the plurality of protrusions and the substrate is larger than a distance between an outer edge portion of the second ejection port and the substrate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile