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:
Mar. 20, 2001
Filed:
Mar. 14, 1995
Qiming Zhang, Westford, MA (US);
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
An ink jetting device includes a wall that constitutes at least a part of an ink channel and is formed of piezoelectric ceramic material polarized in one direction. A first electrode is formed wholly over one surface of the wall, a second electrode is formed partially on the other surface of the wall, and a third electrode is formed at a position that is spaced from the second electrode on the other surface of the wall. A controller is connected to the second and third electrodes but is not connected to the first electrode. The controller induces a potential difference between the second and third electrodes to deform the wall with a piezoelectric effect, so that the ink in the ink channel is pressurized to jet an ink droplet from the ink channel.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile