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公开(公告)号：US11509244B2
公开(公告)日：2022-11-22
申请号：US16775561
申请日：2020-01-29
发明人： Takanori Matsuda , Makoto Kubota , Hisato Yabuta , Miki Ueda , Kanako Oshima , Fumio Uchida , Hiroki Imai , Kenji Maeda , Chiemi Shimizu
IPC分类号： H02N2/10 , H04N5/225 , B41J2/14 , C04B35/495 , C04B35/626 , C04B35/63 , C04B35/64 , H01L41/047 , H01L41/083 , H01L41/09 , H01L41/187 , H01L41/273
摘要： A lead-free piezoelectric material includes perovskite-type metal oxide containing Na, Nb, Ba, Ti, and Mg and indicates excellent piezoelectric properties. The piezoelectric material satisfies the following relational expression (1): 0.430≤a≤0.460, 0.433≤b≤0.479, 0.040≤c≤0.070, 0.0125≤d≤0.0650, 0.0015≤e≤0.0092, 0.9×3e≤c−d≤1.1×3e, a+b+c+d+e=1, where a, b, c, d, and e denote the relative numbers of Na, Nb, Ba, Ti, and Mg atoms, respectively.
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公开(公告)号：US20170335111A1
公开(公告)日：2017-11-23
申请号：US15493426
申请日：2017-04-21
IPC分类号： C09D1/00 , H01L41/08 , H01L41/187 , H01L41/318
CPC分类号： C09D1/00 , B41J2/161 , B41J2/164 , B41J2202/03 , C23C18/1216 , C23C18/1241 , C23C18/1283 , C23C18/1291 , H01L41/0805 , H01L41/0973 , H01L41/1876 , H01L41/318
摘要： Provided is a coating liquid for forming a piezoelectric thin film containing lead zirconate titanate, the coating liquid including a complex precursor containing at least three kinds of metal elements of Pb, Ti, and Zr, the coating liquid being free from an exothermic peak at a temperature of 450° C. or more, or having a heat generation amount at a temperature of from 400° C. to 450° C., which is larger than a heat generation amount at a temperature of from 450° C. to 500° C., in differential thermal analysis of the coating liquid.
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公开(公告)号：US11837975B2
公开(公告)日：2023-12-05
申请号：US16775542
申请日：2020-01-29
发明人： Makoto Kubota , Kanako Oshima , Hisato Yabuta , Takanori Matsuda , Miki Ueda , Fumio Uchida , Hiroki Imai , Kenji Maeda , Chiemi Shimizu
IPC分类号： H02N2/10 , B41J2/14 , C04B35/495 , C04B35/626 , C04B35/634 , C04B35/64 , H04N23/52 , H10N30/50 , H10N30/053 , H10N30/87 , H10N30/20 , H10N30/853
CPC分类号： H02N2/103 , B41J2/14233 , C04B35/495 , C04B35/62695 , C04B35/63416 , C04B35/64 , H04N23/52 , H10N30/053 , H10N30/2047 , H10N30/50 , H10N30/8536 , H10N30/8542 , H10N30/871 , C04B2235/3234 , C04B2235/3255 , C04B2235/3263 , C04B2235/6021 , C04B2235/6567 , C04B2235/768
摘要： A piezoelectric material includes: an oxide containing Na, Ba, Nb, Ti, and Mn, in which the oxide has a perovskite-type structure, a total amount of metal elements other than Na, Ba, Nb, Ti, and Mn contained in the piezoelectric material is 0.5 mol % or less with respect to a total amount of Na, Ba, Nb, Ti, and Mn, a molar ratio x of Ti to a total molar amount of Nb and Ti is 0.05≤x≤0.12, a molar ratio y of Na to Nb is 0.93≤y≤0.98, a molar ratio z of Ba to Ti is 1.09≤z≤1.60, a molar ratio m of Mn to the total molar amount of Nb and Ti is 0.0006≤m≤0.0030, and 1.07≤y×z≤1.50 is satisfied.
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4.发明申请公开(公告)号：US20190393407A1
公开(公告)日：2019-12-26
申请号：US16440098
申请日：2019-06-13
IPC分类号： H01L41/187 , H01L41/047 , H01L41/09 , H01L41/318 , B41J2/14
摘要： Provided is use of an oriented piezoelectric film including of a perovskite-type crystal represented by the following general formula (1): Ba1-xCaxTi1-yZryO3 (0≤x≤0.2, 0≤y≤0.2) (1). The oriented piezoelectric film is formed on an oriented underlayer oriented in a (111) plane and contains first crystals oriented in the (111) plane with respect to a film surface and randomly oriented second crystal grains. The first crystal grains have an average grain diameter of from 300 nm to 600 nm and the second crystal grains have an average grain diameter of from 50 nm to 200 nm.
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5.发明授权Bismuth iron oxide powder, manufacturing method for the bismuth iron oxide powder, dielectric ceramics, piezoelectric element, liquid discharge head, and ultrasonic motor 有权氧化铁铋粉，氧化铁铋粉末，电介质陶瓷，压电元件，液体排出头，超声波电机的制造方法公开(公告)号：US09051191B2
公开(公告)日：2015-06-09
申请号：US14192217
申请日：2014-02-27
发明人： Hisato Yabuta , Makoto Kubota , Mikio Shimada , Kenji Takashima , Fumio Uchida , Kenji Maeda , Chiemi Shimizu
CPC分类号： C01G49/02 , B82Y30/00 , C01G29/00 , C01G49/0018 , C01P2002/34 , C01P2002/60 , C01P2002/72 , C01P2002/76 , C01P2004/04 , C01P2004/10 , C01P2004/82 , C01P2006/60 , C04B35/26 , C04B2235/3298 , C04B2235/5445 , C04B2235/5454 , C04B2235/76 , C04B2235/768 , C04B2235/80 , C04B2235/85 , H01L41/1878 , H01L41/43
摘要： Provided is a lead-free dielectric ceramics having a low leakage current value, and a bismuth iron oxide powder as a raw material thereof. The bismuth iron oxide powder includes at least: (A) grains including a bismuth iron oxide having a perovskite-type crystal structure; (B) grains including a bismuth iron oxide having a crystal structure classified to a space group Pbam; and (C) grains including a bismuth iron oxide or a bismuth oxide having a crystal structure that is classified to a space group I23. The dielectric ceramics are made of bismuth iron oxide in which the bismuth iron oxide crystals having the crystal structure classified to the space group Pbam are distributed at a grain boundary of crystal grains of the bismuth iron oxide crystals having the perovskite-type crystal structure.
摘要翻译： 提供具有低漏电流值的无铅电介质陶瓷和作为其原料的氧化铋铁粉末。 氧化铋粉末至少包括：（A）包含具有钙钛矿型晶体结构的氧化铋的晶粒; （B）包含具有分类为空间群Pbam的晶体结构的氧化铋的晶粒; 和（C）包含分类为空间群I23的具有晶体结构的氧化铋铁或氧化铋的晶粒。 介电陶瓷由氧化铋铁氧化物制成，其中具有分类为空间群Pbam的晶体结构的氧化铋晶体分布在具有钙钛矿型晶体结构的氧化铋晶体的晶粒的晶界处。
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公开(公告)号：US20200169192A1
公开(公告)日：2020-05-28
申请号：US16775561
申请日：2020-01-29
发明人： Takanori Matsuda , Makoto Kubota , Hisato Yabuta , Miki Ueda , Kanako Oshima , Fumio Uchida , Hiroki Imai , Kenji Maeda , Chiemi Shimizu
IPC分类号： H02N2/10 , H01L41/047 , H01L41/083 , H01L41/09 , H01L41/187 , H01L41/273 , C04B35/495 , C04B35/626 , C04B35/63 , C04B35/64 , H04N5/225 , B41J2/14
摘要： A lead-free piezoelectric material includes perovskite-type metal oxide containing Na, Nb, Ba, Ti, and Mg and indicates excellent piezoelectric properties. The piezoelectric material satisfies the following relational expression (1): 0.430≤a≤0.460, 0.433≤b≤0.479, 0.040≤c≤0.070, 0.0125≤d≤0.0650, 0.0015≤e≤0.0092, 0.9×3e≤c−d≤1.1×3e, a+b+c+d+e=1, where a, b, c, d, and e denote the relative numbers of Na, Nb, Ba, Ti, and Mg atoms, respectively.
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公开(公告)号：US20200169190A1
公开(公告)日：2020-05-28
申请号：US16775523
申请日：2020-01-29
发明人： Kanako Oshima , Miki Ueda , Takanori Matsuda , Makoto Kubota , Hisato Yabuta , Fumio Uchida , Hiroki Imai , Kenji Maeda , Chiemi Shimizu
IPC分类号： H02N2/10 , H01L41/047 , H01L41/083 , H01L41/09 , H01L41/187 , H01L41/273 , C04B35/495 , C04B35/64 , H04N5/217 , B41J2/14
摘要： Provided is a lead-free piezoelectric material reduced in dielectric loss tangent, and achieving both a large piezoelectric constant and a large mechanical quality factor. A piezoelectric material according to at least one embodiment of the present disclosure is a piezoelectric material including a main component formed of a perovskite-type metal oxide represented by the general formula (1): Nax+s(1−y)(BiwBa1−s−w)1−yNbyTi1−yO3 (where 0.84≤x≤0.92, 0.84≤y≤0.92, 0.002≤(w+s)(1−y)≤0.035, and 0.9≤w/s≤1.1), and a Mn component, wherein the content of the Mn is 0.01 mol % or more and 1.00 mol % or less with respect to the perovskite-type metal oxide.
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8.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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9.发明申请BISMUTH IRON OXIDE POWDER, MANUFACTURING METHOD FOR THE BISMUTH IRON OXIDE POWDER, DIELECTRIC CERAMICS, PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD, AND ULTRASONIC MOTOR 审中-公开双锡氧化铁粉末，二氧化硅粉末，电介质陶瓷，压电元件，液体放电头和超声波电机的制造方法公开(公告)号：US20140178290A1
公开(公告)日：2014-06-26
申请号：US14192217
申请日：2014-02-27
发明人： Hisato Yabuta , Makoto Kubota , Mikio Shimada , Kenji Takashima , Fumio Uchida , Kenji Maeda , Chiemi Shimizu
IPC分类号： C01G49/02
CPC分类号： C01G49/02 , B82Y30/00 , C01G29/00 , C01G49/0018 , C01P2002/34 , C01P2002/60 , C01P2002/72 , C01P2002/76 , C01P2004/04 , C01P2004/10 , C01P2004/82 , C01P2006/60 , C04B35/26 , C04B2235/3298 , C04B2235/5445 , C04B2235/5454 , C04B2235/76 , C04B2235/768 , C04B2235/80 , C04B2235/85 , H01L41/1878 , H01L41/43
摘要： Provided is a lead-free dielectric ceramics having a low leakage current value, and a bismuth iron oxide powder as a raw material thereof. The bismuth iron oxide powder includes at least: (A) grains including a bismuth iron oxide having a perovskite-type crystal structure; (B) grains including a bismuth iron oxide having a crystal structure classified to a space group Pbam; and (C) grains including a bismuth iron oxide or a bismuth oxide having a crystal structure that is classified to a space group I23. The dielectric ceramics are made of bismuth iron oxide in which the bismuth iron oxide crystals having the crystal structure classified to the space group Pbam are distributed at a grain boundary of crystal grains of the bismuth iron oxide crystals having the perovskite-type crystal structure.
摘要翻译： 提供具有低漏电流值的无铅电介质陶瓷和作为其原料的氧化铋铁粉末。 氧化铋粉末至少包括：（A）包含具有钙钛矿型晶体结构的氧化铋的晶粒; （B）包含具有分类为空间群Pbam的晶体结构的氧化铋的晶粒; 和（C）包含分类为空间群I23的具有晶体结构的氧化铋铁或氧化铋的晶粒。 介电陶瓷由氧化铋铁氧化物制成，其中具有分类为空间群Pbam的晶体结构的氧化铋晶体分布在具有钙钛矿型晶体结构的氧化铋晶体的晶粒的晶界处。
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公开(公告)号：US11489462B2
公开(公告)日：2022-11-01
申请号：US16775523
申请日：2020-01-29
发明人： Kanako Oshima , Miki Ueda , Takanori Matsuda , Makoto Kubota , Hisato Yabuta , Fumio Uchida , Hiroki Imai , Kenji Maeda , Chiemi Shimizu
IPC分类号： H02N2/10 , B41J2/14 , C04B35/495 , C04B35/64 , H01L41/047 , H01L41/083 , H01L41/09 , H01L41/187 , H01L41/273 , H04N5/217
摘要： Provided is a lead-free piezoelectric material reduced in dielectric loss tangent, and achieving both a large piezoelectric constant and a large mechanical quality factor. A piezoelectric material according to at least one embodiment of the present disclosure is a piezoelectric material including a main component formed of a perovskite-type metal oxide represented by the general formula (1): Nax+s(1−y)(BiwBa1−s−w)1−yNbyTi1−yO3 (where 0.84≤x≤0.92, 0.84≤y≤0.92, 0.002≤(w+s)(1−y)≤0.035, and 0.9≤w/s≤1.1), and a Mn component, wherein the content of the Mn is 0.01 mol % or more and 1.00 mol % or less with respect to the perovskite-type metal oxide.
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