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:
Jul. 20, 2021
Filed:
May. 23, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of manufacturing a liquid ejection head including a first step of having a molten resin becoming a first portion flow in between a first position in a first mold and a first position in a second mold and the molten resin becoming a second portion flow in between a second position in the first mold and a second position in the second mold; a second step of relatively moving the first and second molds, after opening the molds; a third step of closing the molds; a fourth step of joining the first and second portions, a fifth step of taking out the first and second portions and the sealing portion from the molds and mounting a recording element substrate; and a step of forming a space portion between a liquid supply path surface and a mounting surface.