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. 10, 1983
Filed:
Aug. 10, 1981
Tadao Kohashi, Moriguchi, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
A novel ink printing apparatus utilizes electroosmotic force on a face of dielectric substance substrate 10 between a needle shaped recording electrode 20 and a ring shaped auxiliary electrode 30. When a voltage of a suitable polarity is applied between the electrodes 20 and 30, a fluid ink (of solvent ink) 40 laid on the dielectric substrate 10 to range from the electrodes 30 to 20 travels by the electroosmotic force and makes protrusion 41 on the end tip 20' of the recording electrode 20. By applying a high voltage between a counter electrode 60 behind a recording paper 50 and the recording electrode 20, the fluid ink 41 flies to the recording paper.