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:
Jan. 27, 2004
Filed:
Jun. 07, 2002
Yoshiaki Sakamoto, Kawasaki, JP;
Shuji Koike, Tokyo, JP;
Tomohisa Shingai, Kawasaki, JP;
Toshihiko Osada, Kawasaki, JP;
Seigen Otani, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An ink jet head having a plurality of nozzles discharging ink supplied from an ink supply unit. The ink jet head includes a head main body including a plurality of pressure chambers ( ) provided for the respective nozzles, in which ink is filled, and a plurality of pressure units provided for the respective pressure chambers ( ), each of the pressure units applying pressure to the pressure chamber ( ) to discharge the ink in the pressure chamber ( ) from the nozzle, an individual electrode ( ) provided for each of the pressure units to drive the pressure unit, at least one contact ( ) connected to an external connection wiring member supplying a signal for controlling the pressure unit, and a wiring pattern ( ) formed into a thin film to electrically connect the individual electrode ( ) to the contact ( ), thereby facilitating connection to the external connection wiring member, improving the fabrication efficiency and the reliability.