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. 26, 2002
Filed:
May. 13, 1999
Applicant:
Inventor:
Junichi Fujisawa, Niigata, JP;
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 ;
U.S. Cl.
CPC ...
B41J 2/045 ;
Abstract
An ink jet head having a plurality of drive columns includes a plate having a plurality of diaphragm portions which are bonded to end surfaces of the drive columns with an adhesive, respectively. Each of the diaphragm portions is driven by a drive column corresponding to the diaphragm portion thereby to eject ink droplets. One of the diaphragm portion and the corresponding drive column includes an accommodating groove for accommodating an excess adhesive produced when bonding the diaphragm portion to the end surface of the drive column.