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. 08, 2005
Filed:
Dec. 20, 2001
Tomohiro Makigaki, Suwa, JP;
Taro Takekoshi, Suwa, JP;
Masahiro Fujii, Suwa, JP;
Koji Kitahara, Suwa, JP;
Seiichi Fujita, Suwa, JP;
Tomohiro Makigaki, Suwa, JP;
Taro Takekoshi, Suwa, JP;
Masahiro Fujii, Suwa, JP;
Koji Kitahara, Suwa, JP;
Seiichi Fujita, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A silicon nozzle plate includes nozzles each with a first nozzle portion having a circular cross-section and a second nozzle portion having a circular cross-section wherein the circular cross-section of the first nozzle portion is smaller than the circular cross-section of the second nozzle portion. In one embodiment the nozzle plate is utilized in an inkjet head and includes a recess having a flat bottom surface that commonly communicates with a plurality of first nozzle portions and a through hole that exposes terminal portions that supply control signals to pressure generators.