专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2016193749A1 INKJET PRINTHEAD 审中-公开
公开(公告)号：WO2016193749A1
公开(公告)日：2016-12-08
申请号：PCT/GB2016/051645
申请日：2016-06-03
申请人： XAAR TECHNOLOGY LIMITED
发明人： MCMULLEN, Robert Errol , MARCHANT, James Edward David , SIVARAMAKRISHNAN, Subramanian
IPC分类号： B41J2/045 , B41J2/14
CPC分类号： B41J2/04541 , B41J2/14233 , B41J2002/14258 , B41J2002/14491
摘要： An inkjet printhead comprising a printhead die, the printhead die comprising: a plurality of actuators; a plurality of electrical connections in electrical communication with respective first electrodes of the plurality of actuators for providing drive signals thereto; a first electrical bus arranged in common electrical communication with second electrodes of a first group of the actuators for providing first signals thereto; and a second electrical bus arranged in common electrical communication with second electrodes of a second group of the actuators for providing second signals thereto.
摘要翻译：一种包括打印头芯片的喷墨打印头，所述打印头模具包括：多个致动器; 与所述多个致动器中的相应第一电极电连通的多个电连接器，用于向其提供驱动信号; 布置成与第一组致动器的第二电极共同电连通的第一电气总线，用于向其提供第一信号; 以及第二电气总线，其布置成与第二组致动器的第二电极共同电连通，用于向其提供第二信号。

2. 发明申请

WO2016198895A1 A PIEZOELECTRIC THIN FILM ELEMENT 审中-公开
标题翻译：压电薄膜元件
公开(公告)号：WO2016198895A1
公开(公告)日：2016-12-15
申请号：PCT/GB2016/051741
申请日：2016-06-10
申请人： XAAR TECHNOLOGY LIMITED
发明人： MARDILOVICH, Peter , TROLIER-MCKINSTRY, Susan , SIVARAMAKRISHNAN, Subramanian
IPC分类号： H01L41/04 , H01L41/08 , H01L41/09 , B41J2/14 , H01L41/083
CPC分类号： H01L41/0831 , B41J2/14233 , H01L41/042 , H01L41/0805 , H01L41/083 , H01L41/0973
摘要： There is disclosed a piezoelectric thin film element (20) comprising a first electrode (22), a second electrode (23) and one or more piezoelectric thin films there between wherein the thin film element has at least two of: • an electrode arrangement in which electrodes are arranged with the one or more piezoelectric thin films so that an electric field applied to a piezoelectric thin film or a portion of a piezoelectric thin film adjacent to the first electrode is lower than an electric field applied to a piezoelectric thin film or a portion of a piezoelectric thin film further from the first electrode when the piezoelectric thin film element actuated; • a piezoelectric thin film adjacent to the first electrode in which a layer of the piezoelectric thin film near to the first electrode has a piezoelectric displacement constant which is lower than that of a layer of the piezoelectric thin film further from the first electrode; and • a piezoelectric thin film adjacent to the first electrode in which a layer of the piezoelectric thin film near to the first electrode has an elastic modulus which is lower than that of a layer of the piezoelectric thin film further from the first electrode.
摘要翻译：公开了一种包括第一电极（22），第二电极（23）和其间的一个或多个压电薄膜的压电薄膜元件（20），其中薄膜元件具有以下中的至少两个：·电极装置这些电极配置有一个或多个压电薄膜，使得施加到压电薄膜或与第一电极相邻的压电薄膜的一部分的电场低于施加到压电薄膜或当所述压电薄膜元件被致动时，所述第一电极的压电薄膜的部分; •与第一电极相邻的压电薄膜，其中靠近第一电极的压电薄膜层的压电位移常数低于距离第一电极的压电薄膜层的压电位移常数; 以及·与第一电极相邻的压电薄膜，其中靠近第一电极的压电薄膜层的弹性模量比第一电极的压电薄膜层的弹性模量低。

3. 发明申请

WO2022148945A1 ELECTRICAL ELEMENT 审中-公开
公开(公告)号：WO2022148945A1
公开(公告)日：2022-07-14
申请号：PCT/GB2021/053317
申请日：2021-12-15
申请人： XAAR TECHNOLOGY LIMITED
发明人： MARDILOVICH, Peter , SIVARAMAKRISHNAN, Subramanian , KO, Song Won
IPC分类号： H01L41/047 , H01L41/04 , H01L41/09 , H01L41/113 , B41J2/14
摘要： An improved electrical element (20) is provided, comprising a ceramic member, wherein said ceramic member comprises at least one layer (31) having a depth; and first (41) and second (42) electrode layers disposed adjacent the at least one layer (31) of the ceramic member, such that a potential difference may be established through at least a portion of the ceramic member during operation. The electrical element (20) is arranged adjacent to a flexible membrane (10). The first electrode layer (41) comprises a first group of electrodes (G1(41)) comprising at least two fingers and a second group of electrodes (G2(41 ) ) comprising at least one finger; the fingers of the first and second groups of electrodes (G1(41), G2(41)) are arranged alternately in the first electrode layer (41) in an interdigitation direction. The second electrode layer (42) comprises a first group of electrodes (G1(42)) comprising at least two fingers and a second group of electrodes (G2(42 ) ) comprising at least one finger; the fingers of the first and second groups of electrodes (G1(42), G2(42)) are arranged alternately in the second electrode layer (42) in an interdigitation direction. For each group of electrodes (G1, G2) all the fingers in said group are electrically connected to each other and to a group electrical contact. The fingers of the first group of electrodes of the first electrode layer (Gl(41)) at least partially overlap in the interdigitation direction with the corresponding fingers of the first group of electrodes of the second electrode layer (G1(42 ) ); and the fingers of the second group of electrodes of the first electrode layer (G2(41)) at least partially overlap in the interdigitation direction with the corresponding fingers of the second group of electrodes of the second electrode layer (G2(42)). The group electrical contacts are arranged to be addressable to establish a potential difference between the fingers of the first (G1) and second (G2) groups of electrodes of the same electrode layer (41, 42) in the interdigitation direction and deformation of the ceramic member in d33 mode, and to be addressable to establish a potential difference in the depth direction between said at least partially overlapping fingers of the first and second groups of electrodes (G1, G2) of the first and second electrode layers (41, 42) and deformation of the ceramic member in d31 mode. Drive signals, suitable for driving said electrical element (20), switching circuits, controllers, and methods of driving the electrical element (2) are also provided.

4. 发明申请

WO2019048891A1 DROPLET DEPOSITION HEAD AND ACTUATOR COMPONENT THEREFOR 审中-公开
公开(公告)号：WO2019048891A1
公开(公告)日：2019-03-14
申请号：PCT/GB2018/052576
申请日：2018-09-11
申请人： XAAR TECHNOLOGY LIMITED
发明人： MARDILOVICH, Peter , MCMULLEN, Robert Errol , SIVARAMAKRISHNAN, Subramanian
IPC分类号： B41J2/14
摘要： An actuator component for a droplet deposition head, comprising: a plurality of fluid chambers, each fluid chamber being provided with a respective nozzle and a respective piezoelectric actuating element, which is actuableto cause the ejection of fluid from the chamber in question through the corresponding one of the nozzles by deforming a membrane, which bounds, in part, the chamber in question; wherein each piezoelectric actuating element comprises: a piezoelectric member having a top side and an opposing bottom side, the bottom side being nearest to the membrane, the top and bottom sides being spaced apart in a thickness direction; a lower electrode, disposed adjacent said bottom side of the piezoelectric member; an upper electrode, disposed adjacent said top side of the piezoelectric member; wherein each upper electrode comprises: a first layer, which is formed of a first conductive material; a second layer, which is formed of a second conductive material, the first layer being disposed between the second layer and piezoelectric member; wherein at least a portion of the first layer overlies the piezoelectric member when viewed from the thickness direction, this overlying portion of the first layer extending over substantially the whole of the top side of the piezoelectric member and having a length in a length direction, which is a direction perpendicular to the thickness direction in which the extent of the first layer overlying portion is at or near a maximum; wherein at least a portion of the second layer overlies both the first layer and the piezoelectric member when viewed from said thickness direction, this overlying portion of the second layer being formed as a pattern that is shaped so as to accommodate flexing of the piezoelectric actuating element when it is actuated; wherein, as viewed from the thickness direction, the area of the second layer overlying portion is substantially less than half that of the first layer overlying portion; wherein the projection of the second layer overlying portion onto said length of the first layer overlying portion covers at least a majority of said length of the first layer overlying portion.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式