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:
May. 11, 1999
Filed:
Jul. 10, 1997
Andreas Bibl, Los Altos, CA (US);
Mats G Ottosson, Sunnyvale, CA (US);
Deane A Gardner, Cupertino, CA (US);
Topaz Technologies Inc., Sunnyvale, CA (US);
Abstract
The present invention comprises an inkjet print head structure wherein the placement of the transducer electrodes in combination with the particular poling direction of the print head transducer material provides for an efficient combination of shear and normal mode actuation of the print head. The preferred print head structure may be formed as a densely packed linear series of substantially parallel ink channels interspaced between and adjacent to a series of substantially parallel air channels. Further, the present invention provides for a print head structure wherein structures in contact with ink are maintained at ground potential. The present invention provides for a method to manufacture a print head having an array of densely packed ink channels having the characteristics of reduced mechanical crosstalk.