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1.发明授权Piezoelectric material, piezoelectric element, multilayered piezoelectric element, liquid ejection head, liquid ejection apparatus, ultrasonic motor, optical equipment, vibration apparatus, dust removing apparatus, imaging apparatus, and electronic equipment 有权压电材料，压电元件，多层压电元件，液体喷射头，液体喷射装置，超声波马达，光学设备，振动装置，除尘装置，成像装置和电子设备公开(公告)号：US09343650B2
公开(公告)日：2016-05-17
申请号：US14217725
申请日：2014-03-18
发明人： Makoto Kubota , Jumpei Hayashi , Fumio Uchida , Kenji Maeda , Chiemi Shimizu
IPC分类号： H01L41/187 , H01L41/047 , H01L41/083 , H01L41/257 , H01L41/273
CPC分类号： H01L41/0477 , H01L41/083 , H01L41/1871 , H01L41/1878 , H01L41/257 , H01L41/273
摘要： Provided is a lead-free piezoelectric material having a satisfactory and stable piezoelectric constant and electric insulation property in a wide practical temperature range. Provided is a piezoelectric material, including a perovskite-type metal oxide represented by the following general formula (1) as a main component, the piezoelectric material containing Mn in a content of 0.01 part by weight or more and 0.80 part by weight or less with respect to 100 parts by weight of the perovskite-type metal oxide: (LiαxNaαyKαzBaβBi0.5α+γ)a(Tiα+βFeγ) O3 . . . (1), where 0.800≦α≦0.999, 0≦β≦0.150, 0.001≦γ≦0.050, α+β+γ=1, 0≦x≦0.050, 0.045≦y≦0.450, 0.045≦z≦0.450, 0.450≦x+y+z≦0.500, and 0.980≦a≦1.020.
摘要翻译： 提供一种在宽的实际温度范围内具有满意且稳定的压电常数和电绝缘性的无铅压电材料。 提供一种压电材料，其包含由以下通式（1）表示的钙钛矿型金属氧化物作为主要成分，所述压电材料的Mn含量为0.01重量份以上且0.80重量份以下， 相对于100重量份的钙钛矿型金属氧化物：（LiαxNaαyKαzBa＆bgr;Bi0.5α+γ）a（Tiα+＆bgr;Feγ）O3。 。 。 （1）其中0.800＆nlE;α＆nlE; 0.999,0和nlE;＆bgr;＆nlE; 0.150,0.001和nlE;γ＆nlE; 0.050，α+和bgr; +γ= 1,0＆amp; nlE; x＆amp; nlE; 0.050,0.045＆ ＆nlE; z＆nlE; 0.450,0.450＆nlE; x + y + z＆nlE; 0.500和0.980＆nlE; a＆nlE; 1.020。
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2.发明申请PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, MULTILAYERED PIEZOELECTRIC ELEMENT, LIQUID EJECTION HEAD, LIQUID EJECTION APPARATUS, ULTRASONIC MOTOR, OPTICAL EQUIPMENT, VIBRATION APPARATUS, DUST REMOVING APPARATUS, IMAGING APPARATUS, AND ELECTRONIC EQUIPMENT 有权压电元件，压电元件，多层压电元件，液体喷射头，液体喷射装置，超声波电机，光学设备，振动装置，除尘装置，成像装置和电子设备公开(公告)号：US20140292160A1
公开(公告)日：2014-10-02
申请号：US14217725
申请日：2014-03-18
发明人： Makoto Kubota , Jumpei Hayashi , Fumio Uchida , Kenji Maeda , Chiemi Shimizu
IPC分类号： H01L41/047 , H01L41/187 , H01L41/083
CPC分类号： H01L41/0477 , H01L41/083 , H01L41/1871 , H01L41/1878 , H01L41/257 , H01L41/273
摘要： Provided is a lead-free piezoelectric material having a satisfactory and stable piezoelectric constant and electric insulation property in a wide practical temperature range. Provided is a piezoelectric material, including a perovskite-type metal oxide represented by the following general formula (1) as a main component, the piezoelectric material containing Mn in a content of 0.01 part by weight or more and 0.80 part by weight or less with respect to 100 parts by weight of the perovskite-type metal oxide: (LiαxNaαyKαzBaβBi0.5α+γ)a(Tiα+βFeγ) O3 . . . (1), where 0.800≦α≦0.999, 0≦β≦0.150, 0.001≦γ≦0.050, α+β+γ=1, 0≦x≦0.050, 0.045≦y≦0.450, 0.045≦z≦0.450, 0.450≦x+y+z≦0.500, and 0.980≦a≦1.020.
摘要翻译： 提供一种在宽的实际温度范围内具有满意且稳定的压电常数和电绝缘性的无铅压电材料。 提供一种压电材料，其包含由以下通式（1）表示的钙钛矿型金属氧化物作为主要成分，所述压电材料的Mn含量为0.01重量份以上且0.80重量份以下， 相对于100重量份的钙钛矿型金属氧化物：（LiαxNaαyKαzBa＆bgr;Bi0.5α+γ）a（Tiα+＆bgr;Feγ）O3。 。 。 （1）其中0.800＆nlE;α＆nlE; 0.999,0和nlE;＆bgr;＆nlE; 0.150,0.001和nlE;γ＆nlE; 0.050，α+和bgr; +γ= 1,0＆amp; nlE; x＆amp; nlE; 0.050,0.045＆ ＆nlE; z＆nlE; 0.450,0.450＆nlE; x + y + z＆nlE; 0.500和0.980＆nlE; a＆nlE; 1.020。
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公开(公告)号：US20190334458A1
公开(公告)日：2019-10-31
申请号：US16473154
申请日：2017-12-21
发明人： Tatsuo Furuta , Takayuki Watanabe , Miki Ueda , Shinya Koyama , Makoto Kubota , Takanori Matsuda , Akira Uebayashi , Jumpei Hayashi , Hitoshi Nishitani
摘要： The present invention provides a vibrator made of a non-lead-based piezoelectric material and capable of being driven at a sufficient speed with low power consumption, and provides a vibration wave drive device and an electronical device each using the vibrator. To that end, the vibrator according to the present invention includes a piezoelectric element including a piezoelectric material and electrodes, and an elastic body, wherein a Pb component contained in the piezoelectric material is less than 1000 ppm, and a resonance frequency fA in a vibration mode A and a resonance frequency fB in a vibration mode B satisfy a relation of an absolute value of (fB−fA)>2 (kHz), the vibration mode A and the vibration mode B generating vibration waves in the elastic body with wave fronts of the vibration waves intersecting each other.
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公开(公告)号：US10280119B2
公开(公告)日：2019-05-07
申请号：US15396223
申请日：2016-12-30
发明人： Takanori Matsuda , Hiroshi Saito , Tatsuo Furuta , Jumpei Hayashi , Takayuki Watanabe , Toshihiro Ifuku
IPC分类号： H01L41/43 , H01L41/09 , B41J2/16 , H02N2/10 , B41J2/14 , H02N2/16 , H03H9/17 , C04B35/468 , C04B35/626 , H01L41/187 , C04B35/46 , B08B7/02
摘要： A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact composed of an oxide powder containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact after the sintering. The sintering includes (A) increasing the temperature of the compact to a first temperature within a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a second temperature within a temperature range of a liquid phase sintering process of the compact after (A); (C) decreasing the temperature of the compact to a third temperature within the temperature range of the shrinking process of the compact after (B); and (D) retaining the third temperature after (C).
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公开(公告)号：US10256393B2
公开(公告)日：2019-04-09
申请号：US15120934
申请日：2015-02-10
IPC分类号： B06B1/06 , B41J2/14 , H02N2/00 , H02N2/10 , H02N2/16 , H04N1/00 , C04B35/49 , G02B27/00 , H01L41/09 , H01L41/18 , H04N5/225 , C04B35/468 , H01L41/047 , H01L41/083 , H01L41/187
摘要： There is provided a lead-free piezoelectric material having a satisfactory piezoelectric constant and mechanical quality factor in the range of device operating temperatures (from −30° C. to 50° C.). The piezoelectric material contains a main constituent containing a perovskite-type metal oxide expressed by the general formula (Ba1-xCax)a(Ti1-yZry)O3, where x, y and a satisfy the 0.030≤x
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6.发明申请公开(公告)号：US20190019940A1
公开(公告)日：2019-01-17
申请号：US16029434
申请日：2018-07-06
发明人： Jumpei Hayashi , Makoto Kubota , Shinya Koyama , Tatsuo Furuta , Kanako Oshima
IPC分类号： H01L41/187 , H01L41/047 , H01L41/083 , H01L41/257 , H01L41/297 , H01L41/273 , H02N2/10 , H02N2/00 , G02B7/04
摘要： A piezoelectric element includes a piezoelectric material layer and an electrode layer, wherein the piezoelectric material layer and the electrode layer are stacked on top of each other, the piezoelectric material layer includes a barium titanate-based material, and two coercive fields Ec1 and Ec2 of the piezoelectric element have the same sign and satisfy (|Ec2|−|Ec1|)≥8 kV/cm.
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公开(公告)号：US09761788B2
公开(公告)日：2017-09-12
申请号：US14329573
申请日：2014-07-11
发明人： Shunsuke Murakami , Takanori Matsuda , Kanako Oshima , Jumpei Hayashi , Takayuki Watanabe , Hidenori Tanaka , Hiroshi Saito
IPC分类号： H01L41/187 , C04B35/468 , H01L41/18 , H01L41/09 , B06B1/06 , B41J2/14 , H01L41/047 , H01L41/083 , H02N2/10 , H02N2/16
CPC分类号： H01L41/183 , B06B1/0644 , B41J2/14209 , B41J2/14233 , B41J2002/14217 , B41J2002/14258 , B41J2202/03 , C04B35/4682 , C04B2235/3203 , C04B2235/3208 , C04B2235/3244 , C04B2235/3262 , C04B2235/3298 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/77 , C04B2235/785 , C04B2235/786 , C04B2235/79 , H01L41/0471 , H01L41/0477 , H01L41/083 , H01L41/09 , H01L41/0973 , H01L41/1871 , H02N2/106 , H02N2/163
摘要： Provided is a lead-free piezoelectric material having satisfactory piezoelectric constant and mechanical quality factor in a device driving temperature range (−30° C. to 50° C.) The piezoelectric material includes a main component containing a perovskite-type metal oxide represented by Formula 1, a first auxiliary component composed of Mn, and a second auxiliary component composed of Bi or Bi and Li. The content of Mn is 0.040 parts by weight or more and 0.500 parts by weight or less based on 100 parts by weight of the metal oxide on a metal basis. The content of Bi is 0.042 parts by weight or more and 0.850 parts by weight or less and the content of Li is 0.028 parts by weight or less (including 0 parts by weight) based on 100 parts by weight of the metal oxide on a metal basis.(Ba1-xCax)a(Ti1-yZry)O3 . . . (1), wherein, 0.030≦x
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公开(公告)号：US20170153531A1
公开(公告)日：2017-06-01
申请号：US15346992
申请日：2016-11-09
发明人： Makoto Kubota , Akira Uebayashi , Tatsuo Furuta , Shinya Koyama , Jumpei Hayashi , Hidenori Tanaka
IPC分类号： G03B13/34 , H01L41/16 , G02B7/04 , H01L41/187 , H01L41/04 , H01L41/09 , H01L41/047
摘要： Provided is an ultrasonic motor including an annular vibrator and an annular moving member that is brought into pressure-contact with the vibrator. The vibrator includes an annular vibrating plate and an annular piezoelectric element. The piezoelectric element includes an annular lead-free piezoelectric ceramic piece, a common electrode arranged on one surface of the piezoelectric ceramic piece, and a plurality of electrodes arranged on the other surface of the piezoelectric ceramic piece. The plurality of electrodes include two drive phase electrodes, one or more non-drive phase electrodes, and one or more detection phase electrodes. A second surface of the vibrating plate includes a plurality of groove regions extending radially, and the depths of the groove regions change in a circumferential direction along a curve obtained by superimposing one or more sine waves on one another. The ultrasonic motor exhibits a sufficient drive speed while suppressing generation of an unnecessary vibration wave.
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9.发明申请PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, METHOD FOR MANUFACTURING PIEZOELECTRIC ELEMENT, AND ELECTRONIC DEVICE 审中-公开压电材料，压电元件，制造压电元件的方法和电子器件公开(公告)号：US20150349241A1
公开(公告)日：2015-12-03
申请号：US14724020
申请日：2015-05-28
IPC分类号： H01L41/29 , H01L41/083 , H01L41/047 , B08B7/02 , H02N2/00 , G02B7/09 , G02B27/00 , H01L41/18 , B41J2/14
CPC分类号： B08B7/02 , B41J2/14201 , B41J2002/14258 , B41J2202/03 , G02B7/09 , G02B27/0006 , H01L41/0477 , H01L41/083 , H01L41/0973 , H01L41/1871 , H02N2/106 , H02N2/163 , H04N5/2171 , H04N5/2254 , Y10T29/43
摘要： A piezoelectric material that does not contain lead and has excellent and stable piezoelectric properties in a device operating temperature range is provided. The present invention for this purpose is a piezoelectric material including a main component containing a perovskite metal oxide represented by following general formula (1), a first auxiliary component containing Mn, and a second auxiliary component containing Bi charge-disproportionated into trivalent and pentavalent, wherein an amount of the contained Mn is 0.0020 moles or more and 0.0150 moles or less relative to 1 mole of the metal oxide, and an amount of the contained Bi is 0.0004 moles or more and 0.0085 moles or less relative to 1 mole of the metal oxide. Baa(Ti1-xZrx)O3 (1) (where 0.020≦x≦0.130 and 0.996≦a≦1.030).
摘要翻译： 提供了不含铅的压电材料，并且在器件工作温度范围内具有优异且稳定的压电性能。 为此目的，本发明是一种压电材料，它包括含有由以下通式（1）表示的钙钛矿金属氧化物，含有Mn的第一辅助组分和含有歧化成三价和五价的Bi电荷的第二辅助组分的主要组分， 其中相对于1摩尔金属氧化物，含有的Mn的含量为0.0020摩尔以上且0.0150摩尔以下，相对于1摩尔金属，所含的Bi的含量为0.0004摩尔以上且0.0085摩尔以下 氧化物。 Baa（Ti1-xZrx）O3（1）（其中0.020和nlE; x和nlE; 0.130和0.996＆nlE; a＆nlE; 1.030）。
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10.发明授权Piezoelectric material, piezoelectric element, liquid ejection head, ultrasonic motor, and dust removing device 有权压电材料，压电元件，液体喷射头，超声波电机和除尘装置公开(公告)号：US08981626B2
公开(公告)日：2015-03-17
申请号：US13715510
申请日：2012-12-14
发明人： Kaoru Miura , Makoto Kubota , Jumpei Hayashi , Takayuki Watanabe
CPC分类号： H01L41/187 , B08B7/028 , B41J2/14233 , B41J2202/03 , H01L41/18 , H01L41/1871 , H02N2/106 , H02N2/163 , Y10T428/265
摘要： A piezoelectric material contains a perovskite oxynitride expressed by the General Formula: (Ba1-xSrx)(Ti1-3z(Nb1-yTay)3z)(O1-wNw)3. In the formula, x, y, z and w are numerical values satisfying the relationships: 0≦x≦1, 0≦y≦1, 0
摘要翻译： 压电材料含有通式（Ba1-xSrx）（Ti1-3z（Nb1-yTay）3z）（O1-wNw）3表示的钙钛矿氧氮化物。 在公式中，x，y，z和w是满足以下关系的数值：0＆nlE; x＆nlE; 1,0，nlE; y＆nlE; 1,0
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