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:
Sep. 26, 1995
Filed:
Jun. 30, 1994
Applicant:
Inventors:
Stephen L Nicholls, Willunga, AU;
John T Alston, Wynn Vale, AU;
Assignee:
Tonejet Corporation Pty Ltd., Eastwood, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 / ; 106 / ; 106 / ; 106 / ; 106 / ;
Abstract
An ink jet ink composition comprising a liquid having an electrical resistance of at least 10.sup.9 Ohm.cm, insoluble marking particles in a range of from 0.5% to 30% by weight and a particle charging agent in a range of from 0.05 to 5% by weight, where the marking particles are capable of being charged and concentrated into agglomerations of the particles and ejected from the ink in the presence of non-uniform electrostatic field of significant gradient in an ink jet printing apparatus.