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. 17, 1984
Filed:
Jul. 22, 1982
Applicant:
Inventor:
Yoshio Kanayama, Nabari, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3461 / ; 346 75 ;
Abstract
A printer head for use in an ink jet system printer of the ink on demand type includes a base plate, an oscillation plate to which a piezoelectric transducer is attached, a housing plate for defining a pressure chamber, a path plate and an orifice plate disposed in a stack-like fashion. These plates are welded to each other in order to ensure tight sealing. A nickel alloy is painted on each surface of the plates, and the stacked plates are placed in a high temperature (1050.degree. C. through 1100.degree. C.) for connecting the plates to each other by heat welding.