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:
Aug. 21, 2012
Filed:
Jun. 22, 2010
Hideyuki Kobayashi, Tokyo, JP;
Hideyuki Kobayashi, Tokyo, JP;
Konica Minolta IJ Technologies, Inc., Tokyo, JP;
Abstract
An inkjet recording apparatus having: a recording head including a pressure generation section, a pressure chamber, and a nozzle; and a drive signal generator which generates the drive signal including a first expansion pulse, a contraction pulse, and a second expansion pulse, wherein the pulses are generated to satisfy that: a peak value position Pof positive pressure is not more than 1.45AL from a drive signal applying start time, and |M/P|≧0.45, where AL represents a half of the acoustic resonance period of the pressure chamber, Mis a first peak value of negative pressure in the pressure chamber, Pis a peak value of a positive pressure succeeding to M, and Mis a peak value of a negative pressure succeeding to P, wherein M, Pand Mare values of a pressure wave generated by total effect of all the pulses.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile