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1. 发明专利

JPWO2009119322A1 圧電磁器及び圧電磁器組成物有权
公开(公告)号：JPWO2009119322A1
公开(公告)日：2011-07-21
申请号：JP2010505522
申请日：2009-03-11
申请人： Tdk株式会社 , Tdk株式会社
发明人：正仁古川 , 正仁古川 , 田中　大介 , 大介田中 , 廣瀬　正和 , 正和廣瀬 , 正竹中 , 正竹中 , 肇永田 , 肇永田 , 裕二晝間 , 裕二晝間
IPC分类号： C04B35/462 , H01L41/187 , H01L41/22 , H01L41/24
CPC分类号： C04B35/462 , C01G29/006 , C01P2002/50 , C04B35/475 , C04B35/6262 , C04B2235/3201 , C04B2235/3203 , C04B2235/3262 , C04B2235/3298 , C04B2235/442 , C04B2235/604 , H01L41/1878
摘要：下記一般式(1)で表される3成分系の固溶体を主成分とし、一般式(1)におけるx,y,zが、それぞれ下記式(2),(3),(4),(5)を満たす圧電磁器10である。x(Bi1/2Na1/2)TiO3−y(Bi1/2Li1/2)TiO3−z(Bi1/2K1/2)TiO3・・・(1)0.80≦x≦0.96・・・(2)0.02≦y≦0.08・・・(3)0.01≦z≦0.15・・・(4)x+y+z=1・・・・・・・(5)

2. 发明专利

JP5273140B2 Piezoelectric ceramic and piezoelectric ceramic composition 有权
公开(公告)号：JP5273140B2
公开(公告)日：2013-08-28
申请号：JP2010505522
申请日：2009-03-11
申请人： Tdk株式会社
发明人：正仁古川 , 大介田中 , 正和廣瀬 , 正竹中 , 肇永田 , 裕二晝間
IPC分类号： C04B35/462 , H01L41/187
CPC分类号： C04B35/462 , C01G29/006 , C01P2002/50 , C04B35/475 , C04B35/6262 , C04B2235/3201 , C04B2235/3203 , C04B2235/3262 , C04B2235/3298 , C04B2235/442 , C04B2235/604 , H01L41/1878
摘要： A piezoelectric ceramic 10 composed mainly of a three-component solid solution represented by the following general formula (1), wherein x, y and z in general formula (1) satisfy the following formulas (2), (3), (4) and (5). €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒx(Bi 1/2 Na 1/2 )TiO 3 -y(Bi 1/2 Li 1/2 )TiO 3 -z(Bi 1/2 K 1/2 )TiO 3 €ƒ€ƒ€ƒ€ƒ€ƒ(1) 0.80 ‰¤ x ‰¤ 0.96 0.02 ‰¤ y ‰¤ 0.08 0.01 ‰¤ z ‰¤ 0.15 x + y + z = 1

3. 发明专利

JP5217997B2 Piezoelectric ceramic, transducer and ultrasonic motor 有权
公开(公告)号：JP5217997B2
公开(公告)日：2013-06-19
申请号：JP2008315756
申请日：2008-12-11
申请人： Tdk株式会社
发明人：大介田中 , 岳夫塚田 , 正仁古川
IPC分类号： C04B35/468 , H01L41/09 , H01L41/187 , H01L41/22 , H01L41/39 , H03H9/17
CPC分类号： C04B35/4682 , C04B35/62685 , C04B2235/3208 , C04B2235/3236 , C04B2235/3262 , C04B2235/3272 , C04B2235/3281 , C04B2235/5445 , H01L41/1871 , H02N2/163
摘要： Provided is a piezoelectric ceramic (1) containing as a main component a compound represented by formula (1) and further containing at least one element selected from Mn, Fe and Cu in an amount of 0.04 to 0.6% by mass based on the main component, and a vibrator (10) having the piezoelectric ceramic (1) and electrodes (2,3). Ca x Ba 1-x TiO 3 ... (1) where x satisfies 0.05 ‰¤ x ‰¤ 0.20.

4. 发明专利

JP4067298B2 Piezoelectric ceramic 有权
公开(公告)号：JP4067298B2
公开(公告)日：2008-03-26
申请号：JP2001367464
申请日：2001-11-30
申请人： Tdk株式会社
发明人：佳子五木田 , 正仁古川 , 賢治堀野 , 尚吾室澤
IPC分类号： C04B35/46 , C04B35/49 , H01L41/187

5. 发明专利

JP5572998B2 The piezoelectric ceramic composition and piezoelectric element 有权
公开(公告)号：JP5572998B2
公开(公告)日：2014-08-20
申请号：JP2009124252
申请日：2009-05-22
申请人： Tdk株式会社
发明人：大介田中 , 正仁古川 , 岳夫塚田
IPC分类号： C04B35/00 , H01L41/08 , H01L41/083 , H01L41/09 , H01L41/18 , H01L41/187 , H01L41/22 , H01L41/257 , H01L41/39 , H03H9/17
CPC分类号： H01L41/273 , C04B35/495 , C04B2235/3201 , C04B2235/3203 , C04B2235/3213 , C04B2235/3215 , C04B2235/3244 , C04B2235/3248 , C04B2235/3251 , C04B2235/3294 , C04B2235/768 , C04B2235/80 , H01L41/083 , H01L41/1873 , H01L41/43 , H03H9/176 , H03H9/178
摘要： A piezoelectric ceramic composition including a perovskite-type oxide, wherein the perovskite-type oxide has Na, K, Li, Ba and Sr at the A site and Nb, Ta and Zr at the B site, and has a crystal phase transition in a temperature range of −50 to 150° C., the crystal phase transition being accompanied by an endotherm of no greater than 4 J/g, as well as a piezoelectric element 20 provided with a piezoelectric ceramic 1 that contains the piezoelectric ceramic composition.

6. 发明专利

JP5482609B2 The piezoelectric device comprising a piezoelectric ceramic and piezoelectric element including the same, a piezoelectric element according to the sequence 有权
标题翻译：空值
公开(公告)号：JP5482609B2
公开(公告)日：2014-05-07
申请号：JP2010221475
申请日：2010-09-30
申请人： Tdk株式会社
发明人：剛士田内 , 大介田中 , 正仁古川
IPC分类号： C04B35/493 , H01L41/083 , H01L41/09 , H01L41/107 , H01L41/187 , H01L41/22 , H01L41/257 , H01L41/39 , H02N2/00
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic which can exhibit a sufficient vibration velocity and is besides small in heat generation due to vibration.SOLUTION: According to a preferred embodiment, the piezoelectric ceramic includes a complex oxide having the composition represented by formula (1) and 0.2-1.2 mass% Mn in terms of MnCO. In formula (1), Ais at least one element selected from the group consisting of Ca, Sr, and Ba; Ais at least one element selected from the group consisting of Nb, Ta, and Sb, provided that Acontains at least Nb; and a, b, x, y, and z are numbers satisfying the following formulae (1a), (1b), (1x), (1y), and (1z). 0≤a≤0.04 (1a), 0≤b≤0.04 (1b), 0.40≤x≤0.49, (1x), 0.03≤y≤0.15 (1y), and 0.03≤z≤0.15 (1z).
摘要翻译：要解决的问题：提供一种表现出足够的振动速度并且由于振动而产生的热量小的压电陶瓷。解决方案：根据优选实施例，压电陶瓷包括具有由式（ 1）和0.2〜1.2质量％的Mn。在式（1）中，A是选自Ca，Sr和Ba中的至少一种元素; A是选自Nb，Ta和Sb中的至少一种元素，条件是至少含有Nb; 和a，b，x，y和z是满足下列式（1a），（1b），（1x），（1y）和（1z）的数字。 0≤a≤0.04（1a），0≤b≤0.04（1b），0.40≤x≤0.49，（1x），0.03≤y≤0.15（1y）和0.03≤z≤0.15（1z）。

7. 发明专利

JP5386848B2 Piezoelectric ceramic 有权
标题翻译：空值
公开(公告)号：JP5386848B2
公开(公告)日：2014-01-15
申请号：JP2008090314
申请日：2008-03-31
申请人： Tdk株式会社
发明人：岳夫塚田 , 正仁古川 , 大介田中
IPC分类号： C04B35/00 , H01L41/083 , H01L41/187 , H01L41/22 , H01L41/39 , H01L41/43 , H02N2/00
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic where the content of lead is sufficiently reduced and whose piezoelectric property is sufficiently excellent and to provide a piezoelectric element with the piezoelectric ceramic. SOLUTION: The piezoelectric ceramic 1 includes a main ingredient having a general formula denoted as a(Na x K y Li z )[Nb (1-α) Ta α ]O 3 -bBa[Nb (1-α) Ta α ] 2 O 6 -cABO 3 (wherein, a, b, c, x, y, z and α are satisfied with such relations as a+b+c=1, 0≤b≤0.01, 0≤c≤0.1, 0.35≤x≤0.65, 0.35≤y≤0.55, 0≤z≤0.1 and 0≤α≤0.2 respectively; and ABO 3 shows a perovskite-type oxide) and at least one kind of auxiliary ingredients whose constituting element is Cr, Mn, Fe, Co, Cu or Ni and is provided with a sintered body where the total content of the auxiliary ingredient to the main ingredient is 0.05-1.0 mass% in terms of an oxide. The sintered body is baked in an atmosphere having an oxygen partial pressure of less than 0.21 atm and has a mean particle diameter of crystalline grains of 0.9 μm or more. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种压电陶瓷，其中铅的含量充分降低，并且其压电性能足够优异，并提供具有压电陶瓷的压电元件。解决方案：压电陶瓷1包括具有通式表示为主要成分的主要成分，其表示为（Na SB SB）z [ 铌（1-α） TA α] O 3 -bBa [铌（1-α） TA < （其中，a，b，c，x，y，z和...）中的至少一种，其中，a，b，c，x，y，z和 α满足a + b + c =1,0≤b≤0.01,0≤c≤0.1,0.35≤x≤0.65,0.35≤y≤0.55,0≤z≤0.1和0≤α≤0.2的关系 ABO 3 表示钙钛矿型氧化物）和构成元素为Cr，Mn，Fe，Co，Cu或Ni的至少一种辅助成分，并且设置有烧结体，辅助成分与主成分的总含量以氧化物换算为0.05〜1.0质量％。烧结体在氧分压小于0.21atm的气氛中进行烧成，其结晶粒子的平均粒径为0.9μm以上。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP5256804B2 Piezoelectric ceramic and a piezoelectric device using the same 有权
公开(公告)号：JP5256804B2
公开(公告)日：2013-08-07
申请号：JP2008071898
申请日：2008-03-19
申请人： Tdk株式会社
发明人：大介田中 , 正仁古川
IPC分类号： C04B35/00 , C04B35/462 , H01L41/083 , H01L41/09 , H01L41/18 , H01L41/22 , H01L41/257 , H01L41/39
CPC分类号： H01L41/41 , C04B35/4682 , C04B35/495 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3236 , C04B2235/3244 , C04B2235/3255 , C04B2235/5445 , C04B2235/72 , C04B2235/77 , H01L41/1873
摘要： The piezoelectric element (20) of the invention comprises a pair of electrodes (2,3) and a piezoelectric ceramic (1) comprising as the major component a solid solution of the two components KNbO 3 and BaTiO 3 . In the solid solution, the molar ratio of KNbO 3 is 0.5-0.9 with respect to the total of the two components.

9. 发明专利

JP4387134B2 Piezoelectric ceramic 有权
公开(公告)号：JP4387134B2
公开(公告)日：2009-12-16
申请号：JP2003281357
申请日：2003-07-28
申请人： Tdk株式会社
发明人：直義佐藤 , 正仁古川 , 賢治堀野 , 朋史黒田
IPC分类号： C04B35/46 , C04B35/462 , H01L41/187 , H01L41/257 , H01L41/39

10. 发明专利

JP5526945B2 Piezoelectric composition, piezoelectric ceramic, transducer, and ultrasonic motor 有权
公开(公告)号：JP5526945B2
公开(公告)日：2014-06-18
申请号：JP2010082909
申请日：2010-03-31
申请人： Tdk株式会社
发明人：正仁古川 , 大介田中 , 正竹中 , 肇永田 , 裕二晝間
IPC分类号： C04B35/462 , C01G29/00 , H01L41/09 , H01L41/187 , H01L41/22 , H01L41/333 , H01L41/39
CPC分类号： H01L41/1871 , C04B35/475 , C04B35/6262 , C04B35/62645 , C04B2235/3213 , C04B2235/3215 , C04B2235/3262 , C04B2235/3296 , C04B2235/77 , H01L41/43 , H02N2/0045 , H02N2/103
摘要： A piezoelectric composition includes a compound represented by a general expression Bi4Ti3O12-SrBi4Ti4O15 as a main component; and Mn or a Mn compound as an additive. A Mn content is less than 1.0% by mass based on a main component amount.

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