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1.发明公开公开(公告)号：US20240043975A1
公开(公告)日：2024-02-08
申请号：US18358337
申请日：2023-07-25
发明人： Atsushi NAKAMURA , Takuma ENOMOTO , Kai KITAMURA , Junya ABE , Masayuki OMOTO
CPC分类号： C22C45/02 , C22C38/02 , B22F1/05 , H01F1/14766 , C22C2200/02 , C22C2202/02 , B22F2304/10 , B22F2301/35
摘要： An amorphous alloy soft magnetic powder contains a particle having a composition with a compositional formula Fea(Si1-xBx)bCc expressed by an atomic ratio, in which 76.0≤a≤81.0, 16.0≤b≤22.0, 0
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公开(公告)号：US20200324546A1
公开(公告)日：2020-10-15
申请号：US16844061
申请日：2020-04-09
IPC分类号： B41J2/14 , H01L41/187 , H01L41/047
摘要： A piezoelectric element includes: a first electrode provided on a base; a piezoelectric layer provided on the first electrode and containing a complex oxide which has a perovskite structure and contains potassium, sodium, and niobium; and a second electrode provided on the piezoelectric layer, in which the first electrode contains platinum, the first electrode is (111) preferentially oriented, and a platinum atom contained in the first electrode is bonded to an oxygen atom at an interface between the first electrode and the piezoelectric layer.
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3.发明公开公开(公告)号：US20240133008A1
公开(公告)日：2024-04-25
申请号：US18358154
申请日：2023-07-24
发明人： Atsushi NAKAMURA , Takuma ENOMOTO , Kai KITAMURA , Junya ABE , Masayuki OMOTO
IPC分类号： C22C45/02 , H01F1/153 , H01F27/255
CPC分类号： C22C45/02 , H01F1/1535 , H01F27/255 , C22C2200/02 , C22C2202/02
摘要： An amorphous alloy soft magnetic powder contains a particle having a composition with a compositional formula (Fe1-xCrx) a (Si1-yBy)100-a-bCb expressed by an atomic ratio, in which 0
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公开(公告)号：US20180370236A1
公开(公告)日：2018-12-27
申请号：US16015447
申请日：2018-06-22
发明人： Ichiro ASAOKA , Hiromu MIYAZAWA , Masayuki OMOTO , Toshiki HARA , Toshihiro SHIMIZU , Akira KURIKI
IPC分类号： B41J2/14 , H01L41/047 , H01L41/09
CPC分类号： B41J2/14233 , B41J2202/10 , H01L41/047 , H01L41/0973 , H01L41/1876
摘要： Provided is a liquid ejecting head that ejects a liquid in a pressure chamber by a piezoelectric device, the piezoelectric device including a vibration plate, a piezoelectric layer containing lead, a first electrode provided between the vibration plate and the piezoelectric layer, and a second electrode provided on a side opposite to a side of the first electrode as viewed from the piezoelectric layer. The piezoelectric layer is preferentially oriented in a (100) plane, a lattice constant c defined by a crystal plane of the piezoelectric layer parallel to a film surface of the piezoelectric layer and a lattice constant a defined by a crystal plane perpendicular to the film surface satisfy 0.9945≤c/a≤1.012, and the thickness of the piezoelectric device is twice or more the thickness t (t
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公开(公告)号：US20190067557A1
公开(公告)日：2019-02-28
申请号：US16114286
申请日：2018-08-28
发明人： Masayuki OMOTO , Ichiro ASAOKA , Hiromu MIYAZAWA
IPC分类号： H01L41/187 , H01L41/08 , B41J2/14
摘要： A piezoelectric element including an electrode and a piezoelectric layer provided on the electrode and having a perovskite structure including lead, zirconium, and titanium is provided. A radial distribution function obtained from an extended X-ray absorption fine structure of an L3 absorption edge of lead in an X-ray absorption spectrum of the piezoelectric layer at an interface with the electrode satisfies a formula (1) below A/B≤1 (1) (in the formula (1), A represents an intensity of a peak attributable to oxygen atoms closest to lead atoms; and B represents an intensity of a peak attributable to oxygen atoms second closest to the lead atoms).
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公开(公告)号：US20170345994A1
公开(公告)日：2017-11-30
申请号：US15137240
申请日：2016-04-25
发明人： Kazuya KITADA , Masayuki OMOTO
IPC分类号： H01L41/18 , H01L41/09 , H01L41/047 , H01L41/317 , B41J2/14
CPC分类号： H01L41/18 , B41J2/14233 , B41J2002/14241 , B41J2202/03 , H01L41/047 , H01L41/0805 , H01L41/0973 , H01L41/1873 , H01L41/317 , H01L41/318
摘要： There is provided a piezoelectric element which includes a first electrode which is formed on a substrate, a piezoelectric layer which is formed on the first electrode, and is formed from a compound oxide having an ABO3 type perovskite structure in which potassium (K), sodium (Na), niobium (Nb), and manganese (Mn) are provided, and a second electrode which is formed on the piezoelectric layer. The manganese includes bivalent manganese (Mn2+), trivalent manganese (Mn3+), and tetravalent manganese (Mn4+). A molar ratio (Mn2+/Mn3++Mn4+) of the bivalent manganese to a sum of the trivalent manganese and the tetravalent manganese is equal to or greater than 0.31.
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7.发明公开公开(公告)号：US20240229205A9
公开(公告)日：2024-07-11
申请号：US18358154
申请日：2023-07-25
发明人： Atsushi NAKAMURA , Takuma ENOMOTO , Kai KITAMURA , Junya ABE , Masayuki OMOTO
IPC分类号： C22C45/02 , H01F1/153 , H01F27/255
CPC分类号： C22C45/02 , H01F1/1535 , H01F27/255 , C22C2200/02 , C22C2202/02
摘要： An amorphous alloy soft magnetic powder contains a particle having a composition with a compositional formula (Fe1-xCrx) a (Si1-yBy)100-a-bCb expressed by an atomic ratio, in which 0
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8.发明公开公开(公告)号：US20230235436A1
公开(公告)日：2023-07-27
申请号：US18159858
申请日：2023-01-26
发明人： Mayu WATANABE , Takuma ENOMOTO , Kai KITAMURA , Junya ABE , Atsushi NAKAMURA , Masayuki OMOTO , Ichiro ASAOKA
CPC分类号： C22C45/02 , B22F1/065 , H01F1/1535 , C22C2202/02
摘要： An amorphous alloy soft magnetic powder has a composition represented by (FexCo1-x)100-(a+b)(SiyB1-y)aMb, where M is at least one selected from the group consisting of C, S, P, Sn, Mo, Cu, and Nb, and x, y, a, and b satisfy 0.73≤x≤0.85, 0.02≤y≤0.10, 13.0≤a≤19.0, and 0≤b≤2.0. A Si—K absorption edge XANES spectrum obtained when performing an XAFS measurement on particles has a peak A present in a range of 1842±1 eV, a peak B present in a range of 1845±1 eV, and a peak C present in a range of 1848±1 eV. An intensity ratio A/C is 0.40 or less, and an intensity ratio B/C is 0.60 or less.
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公开(公告)号：US20190198747A1
公开(公告)日：2019-06-27
申请号：US16229556
申请日：2018-12-21
IPC分类号： H01L41/09 , B41J2/14 , B41J2/045 , H01L41/047 , B41J2/16 , H01L41/187 , H01L41/29
CPC分类号： H01L41/09 , B41J2/04581 , B41J2/14233 , B41J2/161 , B41J2/1623 , B41J2/1626 , B41J2/1631 , B41J2/1642 , B41J2/1645 , B41J2/1646 , B41J2002/14241 , B41J2002/14419 , B41J2002/14491 , B41J2202/03 , H01L41/047 , H01L41/081 , H01L41/1876 , H01L41/29 , H01L41/318
摘要： A piezoelectric element includes a substrate; a first electrode formed above the substrate; a piezoelectric layer which contains a composite oxide having a perovskite crystal structure and which is formed above the first electrode; and a second electrode formed above the piezoelectric layer, and the amount of carbon contained in the substrate is 0.26 to less than 14.00 percent by atom.
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10.发明申请公开(公告)号：US20180145246A1
公开(公告)日：2018-05-24
申请号：US15812816
申请日：2017-11-14
发明人： Masayuki OMOTO , Toshiki HARA , Ichiro ASAOKA
IPC分类号： H01L41/187 , B41J2/14 , G01N23/06
CPC分类号： H01L41/1876 , B41J2/14233 , B41J2002/14241 , B41J2002/14419 , B41J2202/03 , G01N23/085 , G01N2223/041 , G01N2223/61
摘要： A method for evaluating a piezoelectric film containing a perovskite oxide containing a lead atom, a zirconium atom, and a titanium atom, and the method includes a process of irradiating the piezoelectric film with X-rays to acquire an extended X-ray absorption fine structure (EXAFS) spectrum at the L3 absorption edge of the lead atom, a process of Fourier-transforming the extended X-ray absorption fine structure (EXAFS) spectrum to acquire a radial distribution function, and a process of acquiring the intensity of a first peak having a distance from the lead atom of 1.4±0.2 Å, the intensity of a second peak having a distance from the lead atom of 2.0±0.2 Å, and the intensity of a third peak having a distance from the lead atom of 2.6±0.2 Å from the radial distribution function, and then evaluating the film quality of the piezoelectric film from a value obtained by dividing the intensity of the first peak by the intensity of the second peak and a value obtained by dividing the intensity of the first peak by the intensity of the third peak.
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