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:
Sep. 21, 2004
Filed:
Sep. 12, 2001
Atsushi Nakamura, Kanagawa, JP;
Shinji Kayaba, Tokyo, JP;
Makoto Ando, Tokyo, JP;
Hiroshi Tokunaga, Tokyo, JP;
Shinichi Horii, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A manufacturing method for a print head, in which a substrate member provided with heating elements is laminated to a nozzle-formed member in which ink-ejection nozzles are formed, includes the step of laminating a correcting member having approximately the same coefficient of linear expansion as the substrate member to the nozzle-formed member. A nozzle interval L of a nozzle-formed member which doesn't laminate a correcting member at an operating temperature T is determined as =L (1+&agr; &Dgr;T)/(1+&agr; &Dgr;T), wherein L is the nozzle interval and a heater interval at the operating temperature after the print head is completed; &agr; and is the coefficient of linear expansion of the nozzle-formed member; &agr; is the coefficient of linear expansion of the correcting member; T is the laminating temperature of the nozzle-formed member and the correcting member; and &Dgr;T is the difference between the laminating temperature T and the operating temperature T .