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:
Nov. 16, 2010
Filed:
Mar. 29, 2007
Applicant:
Tsuyoshi Mita, Kanagawa-ken, JP;
Inventor:
Tsuyoshi Mita, Kanagawa-ken, JP;
Assignee:
Fujifilm Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
Abstract
The liquid ejection head includes: a substrate made of a prescribed material on which a thin film is deposited to constitute a diaphragm; a piezoelectric body which is formed on a face of the diaphragm reverse to a face adjacent to the substrate; and a pressure chamber which is formed on the substrate by etching in a plurality of steps from a side reverse to a side adjacent to the diaphragm and has a difference in width thereof.