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:
Oct. 27, 1992
Filed:
Dec. 07, 1990
Applicant:
Inventors:
Hideaki Horio, Fukuoka, JP;
Hiroaki Sakai, Fukuoka, JP;
Masaharu Oyama, Chikushino, JP;
Mituhide Matuda, Fukuoka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41V / ;
U.S. Cl.
CPC ...
3461 / ;
Abstract
An ink jet apparatus includes a pair of electrodes disposed on an inner wall of an ink reservoir that is provided with a nozzle. An AC voltage is applied to the electrodes to preheat the conductive ink and prevent electrolysis of the conductive ink. A DC voltage is applied to the electrodes after the ink has been preheated to evaporate the conductive ink so that the increase in ink volume jets the conductive ink from the nozzle. The AC voltage is applied within a frequency range especially effective to suppress electrolysis of the conductive ink.