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公开(公告)号：US20160104832A1
公开(公告)日：2016-04-14
申请号：US14973671
申请日：2015-12-17
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shinichiro IKEMI , Yutaka DOSHIDA
IPC: H01L41/187 , C04B35/491
CPC classification number: H01L41/1873 , C04B35/491 , C04B35/493 , C04B35/495 , C04B35/499 , C04B35/50 , C04B35/62685 , C04B2235/3203 , C04B2235/3224 , C04B2235/3227 , C04B2235/3249 , C04B2235/3251 , C04B2235/3255 , C04B2235/3279 , C04B2235/3284 , C04B2235/3291 , C04B2235/3296 , C04B2235/768 , C04B2235/786 , C04B2235/85 , H01L41/0477 , H01L41/1875 , H01L41/1876 , H01L41/43
Abstract: A piezoelectric ceramic composition contains a perovskite composition which is represented by (Pba.Rex){Zrb.Tic, .(Ni1/3Nb2/3)d.(Zn1/3Nb2/3)e}O3 (wherein Re represents La and/or Nd, and a-e and x satisfy the following conditions 0.95≦a≦1.05, 0≦x≦0.05, 0.35≦b≦0.45, 0.35≦c≦0.45, 0
Abstract translation: 压电陶瓷组合物含有由（Pba.Rex）{Zrb.Tic，（Ni1 / 3Nb2 / 3）d。（Zn1 / 3Nb2 / 3）e} O3（其中Re表示La和/或 Nd和ae和x满足以下条件：0.95＆nlE; a＆nlE; 1.05,0＆nlE; x＆nlE; 0.05,0.35＆nlE; b＆nlE; 0.45,0.35＆amp; nlE; c＆nlE; 0.45,0
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公开(公告)号：US20190037319A1
公开(公告)日：2019-01-31
申请号：US16044339
申请日：2018-07-24
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shigeo ISHII , Hiroshi HAMADA , Yutaka DOSHIDA , Takashi TOMITA
CPC classification number: H04R23/02 , H04R1/1008 , H04R1/1016 , H04R1/24 , H04R3/14 , H04R7/12 , H04R9/06 , H04R17/00 , H04R29/001 , H04R31/006
Abstract: An electroacoustic transducer includes a dynamic speaker that generates a first acoustic sound, and a piezoelectric speaker that generates a second acoustic sound. The sum of the sound pressures of the first and second acoustic sounds in a crossover frequency range of the sound pressure of the first acoustic sound and the sound pressure of the second acoustic sound, is adjusted to be equal to or greater than 0.5 times the sound pressure of the first acoustic sound in the crossover frequency range so as to improve the acoustic properties in the crossover frequency range.
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公开(公告)号：US20180020293A1
公开(公告)日：2018-01-18
申请号：US15641860
申请日：2017-07-05
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shigeo ISHII , Takashi TOMITA , Hiroshi HAMADA , Yutaka DOSHIDA
CPC classification number: H04R17/00 , H04R1/1016 , H04R1/2811 , H04R1/2857 , H04R1/345 , H04R7/04 , H04R7/18
Abstract: An electroacoustic transducer that can improve acoustic characteristics has a housing and a piezoelectric speaker. The piezoelectric speaker has a first vibration plate with a periphery part supported directly or indirectly on the housing, as well as a piezoelectric element placed at least on one side of the first vibration plate, and is constituted in such a way that its rigidity is asymmetric with respect to the center axis of the first vibration plate.
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公开(公告)号：US20160157020A1
公开(公告)日：2016-06-02
申请号：US14930528
申请日：2015-11-02
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shigeo ISHII , Takashi TOMITA , Fumihisa ITO , Yutaka DOSHIDA , Yoshiyuki WATANABE
CPC classification number: H01L41/053 , H04R1/02 , H04R1/1075 , H04R1/24 , H04R7/20 , H04R17/00 , H04R17/10 , H04R2205/022 , H04R2217/01 , H04R2440/07 , H04R2499/11
Abstract: In an embodiment, an electroacoustic transducer has a piezoelectric speaker 20, housing, support member 73, and elastically deformable adhesive layer 74. The piezoelectric speaker 20 has a vibration plate 11 with a periphery 111, and a piezoelectric element 12 joined to the vibration plate 11. The housing houses the piezoelectric speaker 20. The support member 73 is constituted by a part of the housing or by a separate member, and supports the periphery 111. The adhesive layer 74 is provided between the periphery 111 and support member 73. The electroacoustic transducer can offer excellent high-frequency characteristics.
Abstract translation: 在一个实施例中，电声换能器具有压电扬声器20，壳体，支撑构件73和可弹性变形的粘合剂层74.压电扬声器20具有带有周边111的振动板11和连接到振动板的压电元件12 壳体容纳压电扬声器20.支撑构件73由壳体的一部分或单独的构件构成，并且支撑周边111.粘合剂层74设置在周边111和支撑构件73之间。 电声换能器可以提供优异的高频特性。
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公开(公告)号：US20140055009A1
公开(公告)日：2014-02-27
申请号：US13919602
申请日：2013-06-17
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Keiichi HATANO , Sumiaki KISHIMOTO , Yutaka DOSHIDA
IPC: H01L41/187 , H01L41/047
CPC classification number: H01L41/1873 , H01L41/0471 , H01L41/083 , H01L41/273
Abstract: A piezoelectric ceramic is constituted by a polycrystal whose main phase is an alkali-containing niobate perovskite structure, where both elemental nickel and elemental manganese are present at the grain boundary of the polycrystal. The piezoelectric ceramic is such that drop in piezoelectric characteristics due to application of high electric field is suppressed.
Abstract translation: 压电陶瓷由多晶体构成，其主相为含碱铌酸钙钙钛矿结构，元素镍和元素锰均存在于多晶的晶界。 压电陶瓷由于施加高电场而导致的压电特性的降低被抑制。
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Patent Agency Ranking
公开(公告)号：US20180249255A1
公开(公告)日：2018-08-30
申请号：US15902889
申请日：2018-02-22
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shigeo ISHII , Hiroshi HAMADA , Yutaka DOSHIDA , Takashi TOMITA
CPC classification number: H04R17/00 , H04R1/1016 , H04R1/24 , H04R5/033 , H04R7/04 , H04R7/14 , H04R7/18 , H04R9/06 , H04R23/02
Abstract: An electroacoustic transducer includes a piezoelectric speaker and a housing. The piezoelectric speaker has: a first vibration plate with a periphery; a piezoelectric element placed on at least one face of the first vibration plate; and multiple openings that are provided around the piezoelectric element and penetrate through the first vibration plate in its thickness direction that is a first axis direction. The housing has: a supporting part that directly or indirectly supports the periphery; and a sound introduction port that faces the piezoelectric speaker in the first axis direction. The sound introduction port is provided at a position where it does not overlap, in the first axis direction, a first opening having the largest open area among the multiple openings. The electroacoustic transducer can improve the acoustic characteristics of a piezoelectric speaker.
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公开(公告)号：US20180176692A1
公开(公告)日：2018-06-21
申请号：US15578630
申请日：2016-03-04
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Yutaka DOSHIDA
CPC classification number: H04R17/10 , H04R1/1008 , H04R5/033 , H04R9/02 , H04R9/06
Abstract: In an embodiment, a piezoelectric speaker 30 includes a sheet member 32 and multiple piezoelectric vibration parts 31. The multiple piezoelectric vibration parts 31 each have a vibration plate 311 supported on the sheet member 32 in a vibratable manner, as well as a piezoelectric element 312 joined to the vibration plate 311. In an embodiment, the piezoelectric speaker 30 in combination with a dynamic speaker 20 constitutes an electroacoustic transducer 104L/104R, and a pair of the electroacoustic transducers 104L, 104R constitute headphones 100. The piezoelectric speaker can improve sound pressures without lowering the resonance frequency.
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公开(公告)号：US20170365772A1
公开(公告)日：2017-12-21
申请号：US15695993
申请日：2017-09-05
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Gouki WATANABE , Takayuki GOTO , Keiichi HATANO , Sumiaki KISHIMOTO , Yutaka DOSHIDA
IPC: H01L41/187 , H04R17/00 , H01L41/43 , C04B35/626 , C04B35/64 , H04R31/00 , C04B35/493
CPC classification number: H01L41/1876 , C04B35/493 , C04B35/6261 , C04B35/62645 , C04B35/64 , C04B2235/3244 , C04B2235/3251 , C04B2235/3255 , C04B2235/3279 , C04B2235/3284 , C04B2235/768 , C04B2235/786 , C04B2235/80 , H01L41/43 , H04R17/00 , H04R31/00 , Y10T428/239
Abstract: A piezoelectric ceramic speaker includes a piezoelectric element using a vibration sheet formed with piezoelectric ceramic having a primary phase constituted by ceramic grains of perovskite crystal structure containing Pb, Nb, Zn, Ti, and Zr, and a secondary phase constituted by ZnO grains, wherein the primary phase is constituted by ceramic grains expressed by a composition formula Pb {(Zr(1-a)Tia)x.(Ni1/3Nb2/3)y.(Zn1/3Nb2/3)z}O3 (where 0
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公开(公告)号：US20170222118A1
公开(公告)日：2017-08-03
申请号：US15514793
申请日：2015-08-31
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Takashi TOMITA , Shigeo ISHII , Hiroshi HAMADA , Yutaka DOSHIDA
IPC: H01L41/047 , H01L41/113 , H04R17/00 , H01L41/297 , H04R7/04 , H01L41/083 , H01L41/293
CPC classification number: H01L41/0471 , B06B1/0611 , H01L41/0831 , H01L41/1132 , H01L41/293 , H01L41/297 , H04R7/04 , H04R17/00
Abstract: An electroacoustic transducer includes: a polygonal-shaped laminated piezoelectric element including alternately stacked piezoelectric layers and electrode layers, with the piezoelectric layers placed between at least one pair of electrode layers having different polarities; and a circular vibration plate on which the laminated piezoelectric element is placed. Of the piezoelectric layers sandwiched between the at least one pair of electrode layers, the total volume (V) of those effective layers that overlap the at least one pair of electrode layers as viewed from the stacking direction satisfies the condition below: 0.2πR2×ts≦V≦2.0πR2×ts wherein π represents the ratio of the circumference of a circle to its diameter, R represents the radius of the vibration plate, and ts represents the thickness of the vibration plate.
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公开(公告)号：US20160155926A1
公开(公告)日：2016-06-02
申请号：US14887214
申请日：2015-10-19
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shigeo ISHII , Takashi TOMITA , Fumihisa ITO , Yutaka DOSHIDA , Yoshiyuki WATANABE
IPC: H01L41/053 , H04R17/00
CPC classification number: H01L41/053 , H04R1/02 , H04R1/1075 , H04R1/24 , H04R7/20 , H04R17/00 , H04R17/10 , H04R2205/022 , H04R2217/01 , H04R2440/07 , H04R2499/11
Abstract: In an embodiment, an electroacoustic transducer has a piezoelectric speaker 20, housing, and support member 23. The piezoelectric speaker 20 has a vibration plate 11 with a periphery 111, and a piezoelectric element 12 joined to the vibration plate 11. The housing houses the piezoelectric speaker 20. The support member 23 is constituted by a part of the housing or by a separate member, and supports the vibration plate 11 in multiple areas along the periphery 111. The electroacoustic transducer can offer excellent high-frequency characteristics.
Abstract translation: 在一个实施例中，电声换能器具有压电扬声器20，壳体和支撑构件23.压电扬声器20具有带有周边111的振动板11和与振动板11接合的压电元件12.壳体容纳 压电扬声器20.支撑构件23由壳体的一部分或单独的构件构成，并且沿着周边111在多个区域中支撑振动板11.电声换能器可以提供优异的高频特性。
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