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. 28, 1981
Filed:
Feb. 11, 1980
Applicant:
Inventors:
Mitsuo Tsuzuki, Tokyo, JP;
Michihisa Suga, Tokyo, JP;
Assignee:
Nippon Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3461 / ; 346 75 ;
Abstract
An ink-jet printer uses droplets of conductive ink to print on a recording medium. The ink is in a chamber having a nozzle and a piezoelectric member attached to one wall of the chamber. The droplets are driven out of the nozzle in response to a driving pulse which is applied to the piezoelectric member. The size of the droplets is determined by the energy content of the driving pulse. The charges formed upon the droplets leaving the nozzle are generated responsive to the driving pulse and have a level which depends upon the driving pulse.