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. 17, 2002
Filed:
Aug. 18, 2000
Applicant:
Inventors:
Tomohiro Sayama, Nagano, JP;
Junhua Chang, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/938 ;
U.S. Cl.
CPC ...
B41J 2/938 ;
Abstract
A drive signal generating unit generates a drive signal sequence COM containing a first pulse, a fourth pulse, and a seventh pulse as a plurality of ejection pulse signals, a second pulse as a fine expansion waveform, and a sixth pulse as a fine contraction waveform. In the drive signal COM, the fourth pulse is placed between the second pulse and the sixth pulse. To finely vibrate a meniscus, the second pulse and the sixth pulse are selectively applied to a piezoelectric vibrator.
Sayama, Tomohiro. (2002). Liquid jetting apparatus, method of driving the same, and computer-readable record medium storing the method (U.S. Patent No. 6494556). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6494556
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile