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1. 发明公开

EP3174191A1 ULTRASONIC MOTOR WITH ANNULAR PIEZOELECTRIC VIBRATOR FOR OPTICAL APPARATUS 有权
标题翻译：带环形压电振子的超声波电机在光学仪器中的应用
公开(公告)号：EP3174191A1
公开(公告)日：2017-05-31
申请号：EP16002384.2
申请日：2016-11-11
申请人： Canon Kabushiki Kaisha
发明人： Uebayashi, Akira , Furuta, Tatsuo , Ueda, Miki , Tanaka, Hidenori , Koyama, Shinya , Miura, Kaoru , Kimura, Atsushi , Fujita, Satoshi
IPC分类号： H02N2/16 , H01L41/187 , G02B7/10
CPC分类号： H02N2/04 , G02B7/08 , G02B7/102 , H01L41/1871 , H02N2/062 , H02N2/163
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.
摘要翻译：本发明提供一种超声波马达，该超声波马达具备环状的振子以及与该振子压接的环状的移动部件。振动器包括环形振动板和环形压电元件。压电元件包括环形无铅压电陶瓷片，布置在压电陶瓷片的一个表面上的公共电极以及布置在压电陶瓷片的另一个表面上的多个电极。多个电极包括两个驱动相电极，一个或多个非驱动相电极以及一个或多个检测相电极。振动板的第二表面包括多个径向延伸的凹槽区域，并且凹槽区域的深度沿着通过将一个或多个正弦波彼此叠加而获得的曲线在圆周方向上改变。超声波马达在抑制不必要的振动波的产生的同时表现出足够的驱动速度。

2. 发明授权

EP2728634B1 Piezoelectric material, piezoelectric element, and electronic apparatus 有权转让
公开(公告)号：EP2728634B1
公开(公告)日：2018-10-03
申请号：EP13004974.5
申请日：2013-10-17
申请人： Canon Kabushiki Kaisha
发明人： Koyama, Shinya , Shimizu, Yasushi , Kubota, Makoto , Uebayashi, Akira , Tanaka, Hidenori
IPC分类号： H01L41/187 , H01L41/083 , C04B35/468 , B08B7/02 , B41J2/14 , G02B7/10 , H02N2/10 , H02N2/16
CPC分类号： H01L41/1871 , B08B7/02 , B41J2/14233 , B41J2/14274 , B41J2202/03 , C04B35/4682 , C04B2235/3206 , C04B2235/3208 , C04B2235/3236 , C04B2235/3244 , C04B2235/3248 , C04B2235/3262 , C04B2235/5445 , C04B2235/72 , C04B2235/77 , C04B2235/78 , C04B2235/786 , C04B2235/79 , C04B2235/80 , G02B27/0006 , H01L41/083 , H01L41/0973 , H02N2/106 , H02N2/163 , H04N5/2254
摘要： Provided is a lead-free piezoelectric material having satisfactory and stable piezoelectric constant and mechanical quality factor in a wide temperature range. The piezoelectric material includes a perovskite-type metal oxide (Ba 1-x Ca x ) a (Ti 1-y Zr y )O 3 , wherein 1.00 ‰¤ a ‰¤ 1.01, 0.125 ‰¤ x ‰¤ 0.300, 0.041 ‰¤ y ‰¤ 0.074, containing Mn and Mg. The Mn content is from 0.12 to 0.40 weight % of the perovskite-type metal oxide on a metal basis. The Mg content is less than 0.10 weight % of the perovskite-type metal oxide on a metal basis.

3. 发明授权

EP2930841B1 OSCILLATORY WAVE DRIVE DEVICE AND OPTICAL APPARATUS 有权
公开(公告)号：EP2930841B1
公开(公告)日：2019-06-12
申请号：EP15162237.0
申请日：2015-04-01
申请人： CANON KABUSHIKI KAISHA
发明人： Uebayashi, Akira , Ifuku, Toshihiro , Furuta, Tatsuo , Koyama, Shinya
IPC分类号： H02N2/14 , G02B7/04 , H02N2/16

4. 发明公开

EP2930841A1 OSCILLATORY WAVE DRIVE DEVICE AND OPTICAL APPARATUS 有权
标题翻译： OSZILLATORISCHE WENEN ANTRIEBSVORRICHTUNG UND OPTISCHE VORRICHTUNG
公开(公告)号：EP2930841A1
公开(公告)日：2015-10-14
申请号：EP15162237.0
申请日：2015-04-01
申请人： CANON KABUSHIKI KAISHA
发明人： Uebayashi, Akira , Ifuku, Toshihiro , Furuta, Tatsuo , Koyama, Shinya
IPC分类号： H02N2/14 , G02B7/04 , H02N2/16
CPC分类号： H02N2/142 , G02B7/04 , H01L41/1871 , H02N2/163
摘要： An oscillatory wave drive device has an oscillatory wave driving unit having an electromechanical energy conversion element having drive phases and a detection phase, a diaphragm (13), and a rotor (725c), in which a traveling wave is generated on the surface of the diaphragm (13) of the electromechanical energy conversion element to drive the rotor (725c), and the driving speed of the rotor (725c) is controlled based on a signal of the phase difference detecting unit. In the oscillatory wave drive device, a detection phase voltage step-down unit and a drive phase voltage step-down unit each containing a resistance voltage dividing circuit having at least two resistors are provided and the voltage dividing ratio in the resistance voltage dividing circuit of the detection phase voltage step-down unit is lower than 1/1 and higher than 1/20.
摘要翻译：振荡波驱动装置具有振荡波驱动单元，该振荡波驱动单元具有具有驱动相位和检测相位的机电能量转换元件，隔膜（13）和转子（725c），其中在该表面上产生行波所述机电能量转换元件的隔膜（13）驱动所述转子（725c），并且基于所述相位差检测单元的信号来控制所述转子（725c）的驱动速度。在振荡波驱动装置中，设置检测相位降压单元和驱动相位降压单元，每个包含具有至少两个电阻器的电阻分压电路，并且电阻分压电路中的分压比检测相位降压单元低于1/1并高于1/20。

5. 发明授权

EP3174191B1 ULTRASONIC MOTOR WITH ANNULAR PIEZOELECTRIC VIBRATOR FOR OPTICAL APPARATUS 有权
公开(公告)号：EP3174191B1
公开(公告)日：2019-03-13
申请号：EP16002384.2
申请日：2016-11-11
申请人： Canon Kabushiki Kaisha
发明人： Uebayashi, Akira , Furuta, Tatsuo , Ueda, Miki , Tanaka, Hidenori , Koyama, Shinya , Miura, Kaoru , Kimura, Atsushi , Fujita, Satoshi
IPC分类号： H02N2/16 , H01L41/187 , G02B7/10

6. 发明授权

EP2902377B1 Piezoelectric ceramic, method for manufacturing the same, piezoelectric element, and electronic apparatus 有权转让
公开(公告)号：EP2902377B1
公开(公告)日：2018-11-14
申请号：EP15000064.4
申请日：2015-01-13
申请人： Canon Kabushiki Kaisha
发明人： Hayashi, Jumpei , Watanabe, Takayuki , Uebayashi, Akira , Takeda, Kenichi
IPC分类号： C04B35/468 , B41J2/14 , C04B35/626 , C04B35/64 , H01L41/43 , H01L41/047 , H01L41/09 , H01L41/187 , H02N2/00 , H02N2/16
CPC分类号： H01L41/257 , B06B1/0644 , B41J2/14201 , C04B35/4682 , C04B35/6261 , C04B35/62655 , C04B35/62695 , C04B35/64 , C04B2235/3208 , C04B2235/3244 , C04B2235/3262 , C04B2235/3263 , C04B2235/3298 , C04B2235/604 , C04B2235/6565 , C04B2235/77 , C04B2235/786 , C04B2235/787 , C04B2235/79 , G02B27/0006 , H01L41/0973 , H01L41/1871 , H01L41/43 , H02N2/163 , Y10T29/42
摘要： A piezoelectric ceramic includes a perovskite-type metal oxide containing barium titanate, and Mn. When a surface thereof along the remanent polarization direction is subjected to X-ray diffraction analysis at room temperature, the ratio of the diffraction intensity of the (002) plane to the diffraction intensity of the (200) plane is 1.0 or more, the diffraction peak of the (002) plane has a half width of 1.2° or less, and the lattice constant of the c-axis thereof and the lattice constant of the a-axis thereof satisfy the relationship 1.004 ‰¤ c/a ‰¤ 1.010.

7. 发明公开

EP2728634A3 Piezoelectric material, piezoelectric element, and electronic apparatus 有权转让
标题翻译：压电材料，压电元件和电子设备
公开(公告)号：EP2728634A3
公开(公告)日：2017-08-02
申请号：EP13004974.5
申请日：2013-10-17
申请人： Canon Kabushiki Kaisha
发明人： Koyama, Shinya , Shimizu, Yasushi , Kubota, Makoto , Uebayashi, Akira , Tanaka, Hidenori
IPC分类号： H01L41/187 , H01L41/083 , C04B35/468 , B08B7/02 , B41J2/14 , G02B7/10 , H02N2/10 , H02N2/16
CPC分类号： H01L41/1871 , B08B7/02 , B41J2/14233 , B41J2/14274 , B41J2202/03 , C04B35/4682 , C04B2235/3206 , C04B2235/3208 , C04B2235/3236 , C04B2235/3244 , C04B2235/3248 , C04B2235/3262 , C04B2235/5445 , C04B2235/72 , C04B2235/77 , C04B2235/78 , C04B2235/786 , C04B2235/79 , C04B2235/80 , G02B27/0006 , H01L41/083 , H01L41/0973 , H02N2/106 , H02N2/163 , H04N5/2254
摘要： Provided is a lead-free piezoelectric material having satisfactory and stable piezoelectric constant and mechanical quality factor in a wide temperature range. The piezoelectric material includes a perovskite-type metal oxide (Ba 1-x Ca x ) a (Ti 1-y Zr y )O 3 , wherein 1.00 ≤ a ≤ 1.01, 0.125 ≤ x ≤ 0.300, 0.041 ≤ y ≤ 0.074, containing Mn and Mg. The Mn content is from 0.12 to 0.40 weight % of the perovskite-type metal oxide on a metal basis. The Mg content is less than 0.10 weight % of the perovskite-type metal oxide on a metal basis.
摘要翻译：本发明提供一种在宽的温度范围内具有令人满意且稳定的压电常数和机械品质因数的无铅压电材料。压电材料包含含有Mn和Mg的钙钛矿型金属氧化物（Ba1-xCax）a（Ti1-yZry）O3，其中1.00≤a≤1.01,0.125≤x≤0.300,0.041≤y≤0.074。锰含量以金属为基准计为钙钛矿型金属氧化物的0.12〜0.40重量％。以金属计，Mg含量小于钙钛矿型金属氧化物的0.10重量％。

8. 发明公开

EP2902377A1 Piezoelectric ceramic, method for manufacturing the same, piezoelectric element, and electronic apparatus 有权转让
标题翻译： Piezoelektrische Keramik，Herstellungsverfahrendafür，piezoelektrisches Element und elektronische Vorrichtung
公开(公告)号：EP2902377A1
公开(公告)日：2015-08-05
申请号：EP15000064.4
申请日：2015-01-13
申请人： Canon Kabushiki Kaisha
发明人： Hayashi, Jumpei , Watanabe, Takayuki , Uebayashi, Akira , Takeda, Kenichi
IPC分类号： C04B35/468 , B41J2/14 , C04B35/626 , C04B35/64 , H01L41/43 , H01L41/047 , H01L41/09 , H01L41/187 , H02N2/00 , H02N2/16
CPC分类号： H01L41/257 , B06B1/0644 , B41J2/14201 , C04B35/4682 , C04B35/6261 , C04B35/62655 , C04B35/62695 , C04B35/64 , C04B2235/3208 , C04B2235/3244 , C04B2235/3262 , C04B2235/3263 , C04B2235/3298 , C04B2235/604 , C04B2235/6565 , C04B2235/77 , C04B2235/786 , C04B2235/787 , C04B2235/79 , G02B27/0006 , H01L41/0973 , H01L41/1871 , H01L41/43 , H02N2/163 , Y10T29/42
摘要： A piezoelectric ceramic includes a perovskite-type metal oxide containing barium titanate, and Mn. When a surface thereof along the remanent polarization direction is subjected to X-ray diffraction analysis at room temperature, the ratio of the diffraction intensity of the (002) plane to the diffraction intensity of the (200) plane is 1.0 or more, the diffraction peak of the (002) plane has a half width of 1.2° or less, and the lattice constant of the c-axis thereof and the lattice constant of the a-axis thereof satisfy the relationship 1.004 ≤ c/a ≤ 1.010.
摘要翻译：压电陶瓷包括含有钛酸钡的钙钛矿型金属氧化物和Mn。沿着剩余极化方向的表面在室温下进行X射线衍射分析时，（002）面的衍射强度与（200）面的衍射强度的比例为1.0以上，衍射（002）面的峰的半值宽度为1.2°以下，其c轴的晶格常数和a轴的晶格常数满足关系1.004‰¤c/ a‰×1.010。

9. 发明公开

EP2728634A2 Piezoelectric material, piezoelectric element, and electronic apparatus 有权转让
标题翻译： Piezoelektrisches材料，压电材料Bauelement，und elektronische Vorrichtung
公开(公告)号：EP2728634A2
公开(公告)日：2014-05-07
申请号：EP13004974.5
申请日：2013-10-17
申请人： Canon Kabushiki Kaisha
发明人： Koyama, Shinya , Shimizu, Yasushi , Kubota, Makoto , Uebayashi, Akira , Tanaka, Hidenori
IPC分类号： H01L41/187 , H01L41/083 , C04B35/468 , B08B7/02 , B41J2/14 , G02B7/10 , H02N2/10 , H02N2/16
CPC分类号： H01L41/1871 , B08B7/02 , B41J2/14233 , B41J2/14274 , B41J2202/03 , C04B35/4682 , C04B2235/3206 , C04B2235/3208 , C04B2235/3236 , C04B2235/3244 , C04B2235/3248 , C04B2235/3262 , C04B2235/5445 , C04B2235/72 , C04B2235/77 , C04B2235/78 , C04B2235/786 , C04B2235/79 , C04B2235/80 , G02B27/0006 , H01L41/083 , H01L41/0973 , H02N2/106 , H02N2/163 , H04N5/2254
摘要： Provided is a lead-free piezoelectric material having satisfactory and stable piezoelectric constant and mechanical quality factor in a wide temperature range. The piezoelectric material includes a perovskite-type metal oxide (Ba 1-x Ca x ) a (Ti 1-y Zr y )O 3 , wherein 1.00 ≤ a ≤ 1.01, 0.125 ≤ x ≤ 0.300, 0.041 ≤ y ≤ 0.074, containing Mn and Mg. The Mn content is from 0.12 to 0.40 weight % of the perovskite-type metal oxide on a metal basis. The Mg content is less than 0.10 weight % of the perovskite-type metal oxide on a metal basis.
摘要翻译：提供一种在宽温度范围内具有令人满意且稳定的压电常数和机械品质因数的无铅压电材料。压电材料包括钙钛矿型金属氧化物（Ba 1-x Ca x）a（Ti 1-y Zr y）O 3，其中1.00‰¤a‰¤1.01,0.125‰¤x‰0.300,0.041‰¤ y‰‰0.074，含Mn和Mg。以金属为基准，Mn含量为钙钛矿型金属氧化物的0.12〜0.40重量％。 Mg含量小于0.10重量％的钙钛矿型金属氧化物。

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