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:
Apr. 02, 2002
Filed:
Apr. 30, 1999
Applicant:
Inventors:
Yosuke Mizuyama, Munakata-gun, JP;
Masaharu Ohyama, Chikushino, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/06 ;
U.S. Cl.
CPC ...
B41J 2/06 ;
Abstract
An electrostatic ink jet recording apparatus for flying an ink by applying a recording signal voltage between a recording electrode and a counter electrode. An optical density having any value in a range of 0.8 to 2.0 can be obtained by setting an angle of an ink meniscus at an tip of the recording electrode in a range of 0 to 65° or setting a distance from the tip of the recording electrode to the ink meniscus in a range of 0 to 1500 &mgr;m.