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:
Mar. 22, 2005
Filed:
Dec. 09, 2002
Takao Nishikawa, Shiojiri, JP;
Atsushi Takakuwa, Shiojiri, JP;
Takao Nishikawa, Shiojiri, JP;
Atsushi Takakuwa, Shiojiri, JP;
Seiko Epson Corporation, , JP;
Abstract
This ink jet recording head manufacturing method comprises (A) a process for forming a peeling layerwherein peeling is induced by light irradiation, on a base plateexhibiting light-transmissivity, (B) a process for forming a common electrode filmon the peeling layer, (C) a process for forming a plurality of piezoelectric elements, (D) a process for forming a reservoir piececomprising a lid structure that accommodates in its interior one or more piezoelectric elements, which interior forms an ink reservoir, (E) a process for irradiating the peeling layerwith prescribed light from the base plateside thereof, thereby producing peeling in the peeling layer, and peeling the base plateaway, and (F) a process for bonding a pressure chamber plate, whereon are provided a plurality of pressure chambers, to the common electrode filmseparated from the base plate, so that the pressure chambersare sealed. Heads compatible with high resolution can thus be manufactured because thin pressure chamber plates can be fabricated in a separate process from the piezoelectric element formation process and then, last of all, bonded in place.