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:
Aug. 16, 2022
Filed:
Sep. 23, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Tomohiko Nakano, Fukushima, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
In a method of manufacturing a liquid ejection head including transferring a dry film for forming a partial structure of a liquid ejection head from a support to a substrate, the dry film with the support is bonded on a processing surface of the substrate with forming a projection part in which peripheral edges of the dry film and the support protrude further outside than a peripheral edge of the processing surface; the projection part is cut at a cutting position between an outer edge of the projection part and the peripheral edge of the processing surface to form a remaining projection part, and the support is peeled from the substrate with the remaining projection part as a start position to leave the dry film on the processing surface which forms the partial structure of the liquid ejection head.