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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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2.发明申请PIEZOELECTRIC DEVICE, PROBE, ELECTRONIC APPARATUS, AND ULTRASONIC IMAGING APPARATUS 审中-公开压电器件，探头，电子设备和超声波成像设备公开(公告)号：US20160346808A1
公开(公告)日：2016-12-01
申请号：US15167793
申请日：2016-05-27
发明人： Hiromu MIYAZAWA , Tetsuya ISSHIKI , Hiroshi ITO , Masayoshi YAMADA , Jiro TSURUNO , Tomoaki NAKAMURA
IPC分类号： B06B1/06 , G01S15/89 , G01S7/62 , H01L41/113 , H01L41/187
CPC分类号： B06B1/0644 , B06B1/0662 , G01S7/62 , G01S15/89 , H01L27/20 , H01L41/0815 , H01L41/0973 , H01L41/1132 , H01L41/1876
摘要： A piezoelectric device includes: an elastic layer that forms an insulating surface region at least partially and has an amorphous structure or random orientation at least in the surface region; a piezoelectric body that is provided on the elastic layer, has a first surface in contact with the elastic layer and a second surface on an opposite side to the first surface, and is preferentially oriented in an orientation region corresponding to the surface region in a plan view; a first electrode provided on the second surface of the piezoelectric body; and a second electrode that is provided on the second surface of the piezoelectric body. A gap is formed between the first and second electrodes corresponding to the orientation region in the plan view.
摘要翻译： 压电装置包括：弹性层，其至少部分地形成至少在表面区域中的无定形结构或无规取向的绝缘表面区域; 设置在所述弹性层上的压电体具有与所述弹性层接触的第一表面和与所述第一表面相反的一侧的第二表面，并且优选地定向在与所述表面区域对应的取向区域中 视图; 设置在压电体的第二表面上的第一电极; 以及设置在压电体的第二表面上的第二电极。 在平面图中与定向区域对应的第一和第二电极之间形成间隙。
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公开(公告)号：US20160089111A1
公开(公告)日：2016-03-31
申请号：US14869094
申请日：2015-09-29
CPC分类号： A61B8/4483 , A61B8/4427 , A61B8/4444 , A61B8/4488 , A61B8/4494 , A61B8/462 , B06B1/0629 , G01N29/0654 , G01N29/226 , G01N29/2437 , G01N2291/02475 , G01N2291/106 , H01L41/1138
摘要： An ultrasonic sensor includes a vibration plate, a first electrode, a piezoelectric body, and a second electrode. The first electrode is laminated on the vibration plate, that has a length along a surface of the vibration plate in a first direction, and that has a width Wbe along the surface of the vibration plate in a second direction that is orthogonal to the first direction. The width Wbe is not more than the length. The piezoelectric body is laminated on the first electrode and has a width Wpz in the second direction. The second electrode is laminated on the piezoelectric body. A ratio Wbe/Wpz between the width Wbe of the first electrode and the width Wpz of the piezoelectric body is not less than 0.1 and not more than 0.8.
摘要翻译： 超声波传感器包括振动板，第一电极，压电体和第二电极。 第一电极层叠在振动板上，该振动板沿第一方向具有沿振动板的表面的长度，并且沿与第一方向正交的第二方向具有沿振动板的表面的宽度Wbe 。 宽度Wbe不大于长度。 压电体层叠在第一电极上，并且在第二方向上具有宽度Wpz。 第二电极层叠在压电体上。 第一电极的宽度Wbe与压电体的宽度Wpz之比Wbe / Wpz为0.1以上且0.8以下。
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4.发明申请LIQUID-EJECTING HEAD, LIQUID-EJECTING APPARATUS, PIEZOELECTRIC ELEMENT, AND PIEZOELECTRIC MATERIAL 有权液体喷射头，液体喷射装置，压电元件和压电材料公开(公告)号：US20140103780A1
公开(公告)日：2014-04-17
申请号：US14105820
申请日：2013-12-13
发明人： Takayuki YONEMURA , Hiromu MIYAZAWA
IPC分类号： H01L41/18
CPC分类号： H01L41/183 , B41J2/14233 , B41J2002/14241 , B41J2002/14419 , B41J2202/03 , C04B35/2608 , C04B2235/3227 , C04B2235/3262 , C04B2235/3298 , C04B2235/441 , C04B2235/768 , H01L41/1878 , H01L41/318
摘要： A liquid-ejecting head includes a pressure-generating chamber communicating with a nozzle opening, and a piezoelectric element. The piezoelectric element has piezoelectric layer contains a perovskite complex oxide containing Bi, La, Fe, and Mn and can undergo electric-field-induced phase transition.
摘要翻译： 液体喷射头包括与喷嘴开口连通的压力产生室和压电元件。 压电元件具有包含含有Bi，La，Fe和Mn的钙钛矿复合氧化物的压电层，并且可以进行电场相变。
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公开(公告)号：US20230026583A1
公开(公告)日：2023-01-26
申请号：US17865732
申请日：2022-07-15
发明人： Hiromu MIYAZAWA , Kinya OZAWA
摘要： A soft magnetic alloy ribbon is made of a Fe-based soft magnetic alloy and includes a first laser peening trace row and a second laser peening trace row each of which includes a plurality of laser peening traces in a row in a first direction and which are arranged adjacent to each other in a second direction intersecting the first direction, and a domain wall extending in a third direction, in which D0
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公开(公告)号：US20210094292A1
公开(公告)日：2021-04-01
申请号：US17036319
申请日：2020-09-29
发明人： Hiromu MIYAZAWA , Kinya OZAWA , Jiro KATO
摘要： In a method of controlling a liquid ejecting apparatus, where the liquid ejecting apparatus includes a pressure chamber that communicates with a nozzle that ejects a liquid, a drive element that changes a pressure of the liquid in the pressure chamber, and a drive circuit that supplies the drive element with an ejection pulse that generates a change in the pressure that ejects the liquid from the nozzle, the method includes specifying a viscosity of the liquid in the nozzle and a surface tension of the liquid in the nozzle from a residual vibration when the pressure of the liquid in the pressure chamber is changed, and controlling a waveform of the ejection pulse according to the viscosity and the surface tension.
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公开(公告)号：US20190283421A1
公开(公告)日：2019-09-19
申请号：US16351658
申请日：2019-03-13
发明人： Hiromu MIYAZAWA , Toshihiro SHIMIZU
摘要： A liquid ejecting head includes: a nozzle from which a liquid is ejected; a communication passage that is in communication with the nozzle; a first pressure compartment that is connected to the communication passage through a first passage; a second pressure compartment that is connected to the communication passage through a second passage; a first drive element that changes pressure of the first pressure compartment; and a second drive element that changes pressure of the second pressure compartment.
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公开(公告)号：US20190084306A1
公开(公告)日：2019-03-21
申请号：US16135352
申请日：2018-09-19
发明人： Koichi MOROZUMI , Hiromu MIYAZAWA , Hiroshi KATO , Hiroshi ITO
IPC分类号： B41J2/14 , H01L41/047 , H01L41/187 , H01L41/311
摘要： A piezoelectric element including a piezoelectric layer having a perovskite structure including lead, zirconium, and titanium, and an electrode provided on the piezoelectric layer is provided. In the piezoelectric layer, in a range of 50 nm or smaller from an interface between the piezoelectric layer and the electrode in a thickness direction, a ratio c/a of a lattice spacing a in a direction perpendicular to the thickness direction and a lattice spacing c in the thickness direction satisfies 0.986≤c/a≤1.014.
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公开(公告)号：US20230249469A1
公开(公告)日：2023-08-10
申请号：US18107062
申请日：2023-02-08
发明人： Hiromu MIYAZAWA , Kinya OZAWA
CPC分类号： B41J2/18 , B41J2/175 , B41J2202/12
摘要： A liquid ejecting head includes a nozzle that is in communication with a pressure chamber and ejects a first liquid, a passage formation substrate that has a liquid passage which extends from a common liquid chamber in communication with a plurality of pressure chambers to the nozzle and through which the first liquid flows, and a circulation passage that is formed in the passage formation substrate, passes near the nozzle, and is not in communication with the liquid passage, and through which a second liquid circulates.
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公开(公告)号：US20230022220A1
公开(公告)日：2023-01-26
申请号：US17813168
申请日：2022-07-18
发明人： Hiromu MIYAZAWA , Kinya OZAWA
摘要： A soft magnetic alloy ribbon is a ribbon made of a Fe-based soft magnetic alloy and includes a first laser peening trace row and a second laser peening trace row each of which includes a plurality of laser peening traces in a row in a first direction and which are arranged adjacent to each other in a second direction intersecting the first direction, in which σ0
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