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1. 发明授权

US06254222B1 Liquid jet recording apparatus with flow channels for jetting liquid and a method for fabricating the same 失效
标题翻译：具有用于喷射液体的流动通道的液体喷射记录装置及其制造方法
公开(公告)号：US06254222B1
公开(公告)日：2001-07-03
申请号：US09200456
申请日：1998-11-27
申请人： Michiaki Murata , Regan Nayve , Atsushi Fukugawa , Masahiko Fujii
发明人： Michiaki Murata , Regan Nayve , Atsushi Fukugawa , Masahiko Fujii
IPC分类号： B41J205
CPC分类号： B41J2/1642 , B41J2/1404 , B41J2/1604 , B41J2/1623 , B41J2/1628 , B41J2/1629 , B41J2/1631 , B41J2/1635
摘要： Through-holes serving as common liquid chambers 5 are formed in a flow channel substrate 1 by a wet anisotropic etching process. One opened end of each through-hole serves as a liquid inlet 4. Trenches rectangular in cross section, which are used as liquid flow channels 7, are formed in the flow channel substrate by RIE process. Each liquid flow channel 7 includes a front constriction 41 formed near its associated discharge orifice 9 and a rear constriction 42 formed near a connection portion between the channel and the common liquid chamber 5. The common liquid chamber 5 is communicatively connected to the liquid flow channel 7 in a linear fashion, and a portion of the liquid flow channel 7 between the front constriction 41 and the rear constriction 42 may be designed to be broad. Therefore, the flow channel resistance is reduced, the liquid jetting efficiency is improved, and the liquid re-supplying is performed at high speed.
摘要翻译：用作普通液体室5的通孔通过湿式各向异性蚀刻工艺形成在流路基板1中。每个通孔的一个开口的端部用作液体入口4.用于流动通道7的横截面为矩形的沟槽通过RIE工艺形成在流动通道基板中。每个液体流动通道7包括在其相关联的排出孔9附近形成的前部收缩部41和形成在通道和公共液体室5之间的连接部分附近的后部收缩部42。公共液体室5连通地连接到液体流动通道 7，并且在前收缩部41和后收缩部42之间的液流通道7的一部分可以被设计为宽的。因此，流路阻力降低，液体喷射效率提高，液体再供给高速进行。

2. 发明授权

US07766461B2 Liquid droplet ejecting head, image forming device, and method of manufacturing liquid droplet ejecting head 有权
标题翻译：液滴喷射头，图像形成装置以及液滴喷射头的制造方法
公开(公告)号：US07766461B2
公开(公告)日：2010-08-03
申请号：US11807500
申请日：2007-05-29
申请人： Atsushi Fukugawa , Hiroyuki Usami
发明人： Atsushi Fukugawa , Hiroyuki Usami
IPC分类号： B41J2/045
CPC分类号： B41J2/14233 , B41J2/161 , B41J2/1628 , B41J2/1631 , B41J2/1632 , B41J2/1642 , B41J2/1646 , B41J2002/1425
摘要： The present invention provides a liquid droplet ejecting head including: a pressure chamber connected to a nozzle ejecting liquid-droplets; a vibrating-plate forming one portion of the pressure chamber; a lower-electrode formed on a surface of the vibrating-plate, and exhibiting one polarity; a piezoelectric body of flexurally-deformable, formed on a surface of the lower electrode, and disposed at a position facing the pressure chamber with the vibrating-plate therebetween; and an upper-electrode formed at a surface of the piezoelectric body opposite the surface at which the lower-electrode is formed, the upper-electrode exhibiting another polarity, when viewed from a direction perpendicular to the surface of the lower-electrode, the piezoelectric body being provided further toward an inner side than a peripheral wall of the pressure chamber, and the lower-electrode being of a size such that one portion thereof overlaps with the peripheral wall of the pressure chamber, and being individuated per each piezoelectric body.
摘要翻译：本发明提供一种液滴喷射头，其包括：与喷射喷射液滴的喷嘴连接的压力室; 形成压力室一部分的振动板; 形成在振动板的表面上并具有一个极性的下电极; 形成在所述下电极的表面上并弯曲变形的压电体，并设置在与所述压力室相对的位置处，所述振动板在其间; 和形成在压电体的与形成下电极的表面相对的表面的上电极，当从垂直于下电极的表面的方向观察时，上电极呈现出另一极性，上压电本体进一步朝向压力室的周壁的内侧设置，并且下电极的尺寸使得其一部分与压力室的周壁重叠，并且每个压电体单独地设置。

3. 发明申请

US20080151008A1 Liquid droplet ejecting head, image forming device, and method of manufacturing liquid droplet ejecting head 有权
标题翻译：液滴喷射头，图像形成装置以及液滴喷射头的制造方法
公开(公告)号：US20080151008A1
公开(公告)日：2008-06-26
申请号：US11807500
申请日：2007-05-29
申请人： Atsushi Fukugawa , Hiroyuki Usami
发明人： Atsushi Fukugawa , Hiroyuki Usami
IPC分类号： B41J2/045
CPC分类号： B41J2/14233 , B41J2/161 , B41J2/1628 , B41J2/1631 , B41J2/1632 , B41J2/1642 , B41J2/1646 , B41J2002/1425
摘要： The present invention provides a liquid droplet ejecting head including: a pressure chamber connected to a nozzle ejecting liquid-droplets; a vibrating-plate forming one portion of the pressure chamber; a lower-electrode formed on a surface of the vibrating-plate, and exhibiting one polarity; a piezoelectric body of flexurally-deformable, formed on a surface of the lower electrode, and disposed at a position facing the pressure chamber with the vibrating-plate therebetween; and an upper-electrode formed at a surface of the piezoelectric body opposite the surface at which the lower-electrode is formed, the upper-electrode exhibiting another polarity, when viewed from a direction perpendicular to the surface of the lower-electrode, the piezoelectric body being provided further toward an inner side than a peripheral wall of the pressure chamber, and the lower-electrode being of a size such that one portion thereof overlaps with the peripheral wall of the pressure chamber, and being individuated per each piezoelectric body.
摘要翻译：本发明提供一种液滴喷射头，其包括：与喷射喷射液滴的喷嘴连接的压力室; 形成压力室一部分的振动板; 形成在振动板的表面上并具有一个极性的下电极; 形成在所述下电极的表面上并弯曲变形的压电体，并设置在与所述压力室相对的位置处，所述振动板在其间; 和形成在压电体的与形成下电极的表面相对的表面的上电极，当从垂直于下电极的表面的方向观察时，上电极呈现出另一极性，上压电本体进一步朝向压力室的周壁的内侧设置，并且下电极的尺寸使得其一部分与压力室的周壁重叠，并且每个压电体单独地设置。

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