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. 04, 2003
Filed:
May. 15, 2001
Kenji Yamazaki, Ebina, JP;
Masaki Kataoka, Ebina, JP;
Yoshihisa Ueda, Ebina, JP;
Michiaki Murata, Ebina, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an ink jet recording head in which the degree of freedom in the design of the arranged position of an electric signal input-output terminal is enhanced, its manufacturing method and an ink jet recording device, the invention is characterized as follows. The ink jet recording head is formed by laminating a heater element substrate in which a heater element and others are arranged and a passage substrate in which nozzles and others are formed. When the nozzles and others are formed by etching in the passage substrate, a cut-out portion for exposing an electric signal input-output terminal of the heater element substrate is also formed. Therefore, the degree of freedom in the design of the shape and the position of the cut-out portion in the head chip is enhanced. It is possible to prevent a hydrophobic agent from adhering to the electric signal input-output terminal to result in electric connection failure if hydrophobic treatment is applied to a nozzle forming plane by forming the head chip so that the electric signal input-output terminal is not exposed at least on the side of the nozzle forming plane owing to the cut-out portion.