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. 27, 1993
Filed:
Mar. 15, 1991
Applicant:
Inventors:
Kikukazu Sakurai, Tokyo, JP;
Mitsuo Tsuzuki, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
346-11 ; 3461 / ;
Abstract
A thermal ink-jet type printhead is disclosed which comprises a strip-like thin metallic layer formed on a substrate. The layer is configured so as to define a narrow portion which is positioned between broad portions. The narrow portion defines a heating element which is integral with the broad portions which act as electrodes. Electrical heating pulses are supplied to the narrow heater portion via the electrodes. The heater arrangement is durable to thermal stresses generated by a superheating and, accordingly is well suited for spontaneous or homogeneous nucleation.