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:
Dec. 18, 2001
Filed:
Jun. 04, 1999
Applicant:
Inventors:
Hiroyuki Muramatsu, Chiba, JP;
Seiji Kuwahara, Chiba, JP;
Atsuya Akase, Chiba, JP;
Kouji Kawaguchi, Chiba, JP;
Tatsuru Sato, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/06 ;
U.S. Cl.
CPC ...
B41J 2/06 ;
Abstract
By manipulating a relative potential relationship of potentials by voltages applied to selected electrodes, nonselected electrodes and an opposed electrode,among a plurality of record electrodes,through,installed at vicinities of an opening portion,of a head, ink is injected, printing of high resolution is made possible and by using a dispersing type ink and changing polarities of the voltages applied to the opposed electrode,and the record electrodes, density of injected ink is made variable.