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1. 发明授权

EP4247140B1 PIEZOELECTRIC LAMINATE AND PIEZOELECTRIC ELEMENT 有权
公开(公告)号：EP4247140B1
公开(公告)日：2024-08-28
申请号：EP23161496.7
申请日：2023-03-13
IPC分类号： H10N30/00 , H10N30/853
CPC分类号： H10N30/8554 , H10N30/076 , H10N30/704

2. 发明公开

EP4402667A1 VERFAHREN ZUR MESSUNG DER VERKEHRSSTÄRKE MIT DAS 审中-公开
公开(公告)号：EP4402667A1
公开(公告)日：2024-07-24
申请号：EP22743707.6
申请日：2022-07-07
申请人： AIT Austrian Institute of Technology GmbH
发明人： LITZENBERGER, Martin , WIESMEYR, Christoph
IPC分类号： G08G1/04 , H10N30/00 , H10N30/40 , G01H9/00 , G08G1/052 , G08G1/056
CPC分类号： G08G1/04 , G08G1/052 , G08G1/056 , G01H9/004

3. 发明授权

EP3816443B1 PIEZOELECTRIC ACTUATOR 有权
公开(公告)号：EP3816443B1
公开(公告)日：2024-07-03
申请号：EP20020508.6
申请日：2020-11-04
IPC分类号： H10N30/00 , H10N30/20 , F04B43/04
CPC分类号： F04B43/043 , F04B43/046 , H10N30/2047 , H10N30/708

4. 发明授权

EP3817074B1 PIEZOELECTRIC ELEMENT, LIQUID EJECTION HEAD, AND PRINTER 有权
公开(公告)号：EP3817074B1
公开(公告)日：2023-11-15
申请号：EP20203869.1
申请日：2020-10-26
发明人： KITADA, Kazuya , TSUKAHARA, Katsutomo
IPC分类号： H10N30/87 , H10N30/853 , H10N30/00 , B41J2/14 , H10N30/078

5. 发明公开

EP4231807A1 PIEZOELECTRIC LAMINATE, PIEZOELECTRIC ELEMENT, AND MANUFACTURING METHOD FOR PIEZOELECTRIC LAMINATE 无效
公开(公告)号：EP4231807A1
公开(公告)日：2023-08-23
申请号：EP23154669.8
申请日：2023-02-02
申请人： FUJIFILM Corporation
发明人： MOCHIZUKI, Fumihiko , KOBAYASHI, Hiroyuki , MUKAIYAMA, Akihiro
IPC分类号： H10N30/076 , H10N30/00 , H10N30/853 , H10N30/87
摘要： An object of the present invention is to provide a piezoelectric laminate and a piezoelectric element, which has excellent long-term reliability.
There is provided a piezoelectric laminate (5) including, on a substrate (10), in the following order, a lower electrode layer (12) and a piezoelectric film (15) containing a Pb-containing perovskite-type oxide, in which the piezoelectric film contains an oxygen atom 18 O having a mass number of 18 in oxygen as a constituent element in excess of a natural abundance ratio. There are also provided a piezoelectric laminate, a piezoelectric element, and a manufacturing method for a piezoelectric laminate.

6. 发明授权

EP4012790B1 STRUCTURE HYBRIDE POUR DISPOSITIF A ONDES ACOUSTIQUES DE SURFACE ET PROCEDE DE FABRICATION ASSOCIE 有权
公开(公告)号：EP4012790B1
公开(公告)日：2023-07-19
申请号：EP21217508.7
申请日：2019-03-13
发明人： ALLIBERT, Frédéric , VEYTIZOU, Christelle
IPC分类号： H10N30/097 , H10N30/00 , H10N30/079

7. 发明公开

EP4156890A1 PIEZOELECTRIC LAMINATE AND PIEZOELECTRIC ELEMENT 审中-实审
公开(公告)号：EP4156890A1
公开(公告)日：2023-03-29
申请号：EP22191046.6
申请日：2022-08-18
申请人： FUJIFILM Corporation
发明人： KOBAYASHI, Hiroyuki , NAKAMURA, Seigo
IPC分类号： H10N30/87 , H10N30/85 , H10N30/853 , H10N30/00
摘要： An object of the present disclosure is to obtain a piezoelectric laminate and a piezoelectric element, having improved piezoelectric characteristics and drive stability without increasing a process load.
A piezoelectric laminate and a piezoelectric element have, on a substrate in the following order, a lower electrode layer, and a piezoelectric film containing a perovskite-type oxide. The lower electrode layer includes a first layer arranged in a state of being in contact with the substrate and includes a second layer arranged in a state of being in contact with the piezoelectric film, the first layer contains Ti or TiW as a main component, the second layer is a uniaxial alignment film which contains Ir as a main component and in which the Ir is aligned in a (111) plane, and a half width at half maximum of an X-ray diffraction peak from the (111) plane is 0.3° or more.

8. 发明授权

EP3975273B1 PIEZOELECTRIC THIN-FILM MICROELECTROMECHANICAL STRUCTURE HAVING IMPROVED ELECTRICAL CHARACTERISTICS AND CORRESPONDING MANUFACTURING PROCESS 有权
公开(公告)号：EP3975273B1
公开(公告)日：2024-08-21
申请号：EP21199247.4
申请日：2021-09-27
IPC分类号： H10N30/00 , H10N30/20 , H10N30/079 , B06B1/06
CPC分类号： B06B1/0688 , B06B1/0662 , H10N30/2047 , H10N30/079 , H10N30/101 , H10N30/708

9. 发明授权

EP3966539B1 SUBSTRATES COMPRISING NANOWIRES 有权
公开(公告)号：EP3966539B1
公开(公告)日：2024-07-10
申请号：EP20726523.2
申请日：2020-05-07
IPC分类号： G01L1/16 , G01L1/18 , G01L1/20 , G01L5/22 , B82Y15/00 , B82Y40/00 , G01N33/00 , B32B7/12 , H10N30/00 , H10N30/30 , B32B27/12
CPC分类号： G01L1/16 , G01L1/18 , G01L1/205 , G01L5/228 , B82Y15/00 , B82Y40/00 , B32B7/12 , B32B27/12 , B32B2262/10320130101 , B32B2307/20220130101 , H10N30/302 , H10N30/704

10. 发明公开

EP4346358A1 PIEZOELECTRIC ELEMENT AND ACTUATOR 审中-实审
公开(公告)号：EP4346358A1
公开(公告)日：2024-04-03
申请号：EP23192851.6
申请日：2023-08-23
申请人： FUJIFILM Corporation
发明人： KOBAYASHI, Hiroyuki , NAKAMURA, Seigo , SUGIMOTO, Shinya , SASAKI, Tsutomu
IPC分类号： H10N30/00 , H10N30/853 , H10N30/50
摘要： A piezoelectric element includes a substrate; and a first electrode, a first piezoelectric film, a second electrode, a second piezoelectric film, and a third electrode which are provided on the substrate in this order, in which both the first piezoelectric film and the second piezoelectric film have spontaneous polarizations aligned in a film thickness direction and directions of the spontaneous polarizations are the same, and in a case where in a hysteresis curve of one piezoelectric film, a coercive voltage on a positive side is denoted by VcF + , a coercive voltage on a negative side is denoted by Vcf, an absolute value |Vcf + - Vcf - | of a difference between both coercive voltages is denoted by ΔVcf, and the larger of an absolute value of the coercive voltage Vcf + and an absolute value of the coercive voltage Vcf is denoted by Vcf, and in a hysteresis curve of the other piezoelectric film, a coercive voltage on a positive side is denoted by Vcr + , a coercive voltage on a negative side is denoted by Vcr - , an absolute value |Vcr + - Vcr - | of a difference between both coercive voltages is denoted by ΔVcr, and the larger of an absolute value of the coercive voltage Vcr + and an absolute value of the coercive voltage Vcr - is denoted by Vcr, ΔVcr

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