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. 17, 2001
Filed:
Jun. 02, 1998
Toshio Inose, Nagoya, JP;
Jun Isono, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A method of manufacturing a nozzle plate and having a nozzle passage therethrough is provided as follows. First, a member having an ink ejection surface and an nozzle passage is formed. The member includes a straight conduit portion which is formed at one end portion of the nozzle passage located near the ink ejection surface and extending straight to an opening of the nozzle passage located on the ink ejection surface in order to eject an ink straight. A recess is formed on the ink ejection surface of the member such that an area of an opening of the recess is greater than an area of the opening of the nozzle passage and such that a depth of the recess is greater than a predetermined thickness. Subsequently, the ink ejection surface is ground by the predetermined thickness on the basis of a depth of the recess remaining on the ink ejection surface after grinding.