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:
Apr. 24, 2012
Filed:
Jun. 17, 2009
Andreas Bibl, Los Altos, CA (US);
John A. Higginson, Santa Clara, CA (US);
Paul A. Hoisington, Norwich, VT (US);
Deane A. Gardner, Cupertino, CA (US);
Robert A. Hasenbein, Enfield, NH (US);
Melvin L. Biggs, Norwich, VT (US);
Edward R. Moynihan, Plainfield, NH (US);
Andreas Bibl, Los Altos, CA (US);
John A. Higginson, Santa Clara, CA (US);
Paul A. Hoisington, Norwich, VT (US);
Deane A. Gardner, Cupertino, CA (US);
Robert A. Hasenbein, Enfield, NH (US);
Melvin L. Biggs, Norwich, VT (US);
Edward R. Moynihan, Plainfield, NH (US);
FUJIFILM Dimatix, Inc., Lebanon, NH (US);
Abstract
Ink jet printheads and printhead components having a body that include a flow path, a piezoelectric actuator having a piezoelectric layer fixed to the body and an impedance feature in the flow path are described. The impedance feature includes a plurality of posts arranged in a first row, at least one post in the first row of posts having a downstream surface that is concave.