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:
Jul. 11, 1995
Filed:
Feb. 24, 1993
Hisato Hiraishi, Tokyo, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
In a shear mode type ink jet head, nozzle holes are disposed at substantially central portions of channels formed between barriers of piezoelectric material, and common ink reservoirs are provided at both ends of the channels. In one embodiment, two kinds of channels having different depths are formed in alternating succession on a board made of piezoelectric material. Channels of one depth are used as dummy channels and are kept empty, and channels of the other depth are filled with ink and the ink can be ejected from the channels through nozzle holes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile