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:
Jun. 26, 1990
Filed:
Dec. 27, 1988
Takeshi Yasuhara, Kanagawa, JP;
Kozo Matsumoto, Kanagawa, JP;
Fuji Electric Co., Ltd., Kanagawa, JP;
Abstract
An ink jet printing head comprises a cavity plate, a nozzle plate and a vibration plate. The cavity plate is formed with ink pressurizing chambers and the nozzle plate is formed with ink nozzles that are perpendicular to the ink pressurizing chambers. Piezoelectric elements are fixedly attached to external portions of the vibration plate corresponding to the ink pressurizing chambers for deforming the oscillatory plate upon the application of voltage. An ink distribution plate may be interposed between the cavity plate and the nozzle plate. The plates are superposed on each other to form an integral body which constitutes the printing head. The printing head is used in a known printing apparatus. With this arrangement, high printing quality can be achieved at a high printing head carriage speed.