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:
Feb. 06, 2007
Filed:
Mar. 26, 2003
Kazuyoshi Tominaga, Chiba, JP;
Osamu Koseki, Chiba, JP;
Masaki Denda, Chiba, JP;
Tomiharu Makishima, Chiba, JP;
Yasuhito Sekiya, Chiba, JP;
Jun Tsuneyoshi, Chiba, JP;
Yuuji Nakamura, Chiba, JP;
Kentarou Suzuki, Chiba, JP;
Kazuyoshi Tominaga, Chiba, JP;
Osamu Koseki, Chiba, JP;
Masaki Denda, Chiba, JP;
Tomiharu Makishima, Chiba, JP;
Yasuhito Sekiya, Chiba, JP;
Jun Tsuneyoshi, Chiba, JP;
Yuuji Nakamura, Chiba, JP;
Kentarou Suzuki, Chiba, JP;
SII Printek Inc., Chiba, JP;
Abstract
An ink-jet print head has a piezoelectric ceramic plate having grooves for receiving ink, a nozzle plate connected to the piezoelectric ceramic plate and having nozzle apertures each disposed in communication with respective ones of the grooves, and an ink storing device for storing ink. An ink chamber plate is connected to the piezoelectric ceramic plate and has an ink chamber for supplying ink from the ink storing device to the grooves. A base plate is connected to a side of the ink chamber plate and has an ink reservoir defining a portion of an ink flow path for transporting ink from the ink storing device to the ink chamber of the ink chamber plate. The ink reservoir has at least one tapered portion progressively diverging in a direction toward the ink chamber of the ink chamber plate.