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:
Oct. 17, 2006
Filed:
May. 08, 2003
Droplet-jetting device with pressure chamber expandable by elongation of pressure-generating section
Yoshikazu Takahashi, Nagoya, JP;
Hiroyuki Ishikawa, Nissin, JP;
Yoshikazu Takahashi, Nagoya, JP;
Hiroyuki Ishikawa, Nissin, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A droplet-jetting device, which is usable for an ink-jet recording apparatus, comprises a pressure chamber disposed between a cavity plate and a pressure-generating section of a piezoelectric actuator. The pressure-generating section and the cavity plate are connected by a connecting section. When a voltage is applied to the piezoelectric actuator, the pressure-generating section is elongated to depress the bottom of the pressure chamber downwardly so that the volume of the pressure chamber is increased. The droplet-jetting device is realized, in which the area of arrangement of the pressure-generating section is decreased to suppress the electrostatic capacity and the pull-eject can be performed by applying the voltage only when the device is driven.