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:
May. 19, 2009
Filed:
Feb. 22, 2005
Applicants:
Renato Conta, Ivrea, IT;
Mara Piano, Chiaverano, IT;
Inventors:
Renato Conta, Ivrea, IT;
Mara Piano, Chiaverano, IT;
Assignee:
Telecom Italia S.p.A., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
B21D 53/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for manufacturing a monolithic thermal ink jet printhead () comprising a plurality of chambers () and of nozzles (), comprises steps of () depositing a plurality of sacrificial layers (), of obtaining, by means of exposure and development operations, a plurality of casts (), of () applying a structural layer (), and subsequently steps of () removing the casts () and of () removing the sacrificial layers (), in order to produce a plurality of chambers () and nozzles ().