-
公开(公告)号：US20190267535A1
公开(公告)日：2019-08-29
申请号：US16277783
申请日：2019-02-15
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Hiroshi HAMADA , Yukihiro MATSUI , Fumihisa ITO , Takashi TOMITA
IPC: H01L41/09 , H01L41/047 , H01L41/27
Abstract: A vibration generating device 10 includes: a diaphragm 11; and a first piezoelectric actuator 12 and a second piezoelectric actuator 13 attached on an upper surface 11a and a lower surface 11b of the diaphragm 11, respectively, so as to sandwich the diaphragm 11 therebetween in a vicinity of an end surface of the diaphragm 11, wherein, in a top view of the upper surface 11a of the diaphragm 11, the first piezoelectric actuator 12 is disposed at a position shifted with respect to the second piezoelectric actuator 13.
-
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.
-
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。
-
公开(公告)号：US20160183006A1
公开(公告)日：2016-06-23
申请号：US14970461
申请日：2015-12-15
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Yasukazu TOKUHISA , Takashi TOMITA , Hiroshi HAMADA , Shigeo ISHII , Yutaka DOSHIDA , Yoshiyuki WATANABE
CPC classification number: H04R17/005 , H04R1/06
Abstract: A piezoelectric speaker has a piezoelectric element and vibration plate. The piezoelectric element has a base body with a mounting surface, as well as first and second terminals that are formed on the mounting surface with a distance between them. The vibration plate has a conductive body joined to the piezoelectric element and having a principle surface facing the mounting surface, as well as a first hole with or without a bottom which is formed on the principle surface in a region facing the first terminal to form a space between the body and first terminal. The piezoelectric speaker is capable of preventing the external electrodes of the piezoelectric element from shorting to each other.
Abstract translation: 压电扬声器具有压电元件和振动板。 压电元件具有安装表面的基体以及形成在安装表面上的距离在其之间的第一和第二端子。 振动板具有连接到压电元件的导体，并且具有面向安装表面的主面，以及具有或不具有底部的第一孔，该第一孔形成在面向第一端子的区域中的主表面上，以形成 身体和第一个终端之间的空间。 压电扬声器能够防止压电元件的外部电极相互短路。
-
公开(公告)号：US20160157021A1
公开(公告)日：2016-06-02
申请号：US14935372
申请日：2015-11-06
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shigeo ISHII , Takashi TOMITA , Fumihisa ITO , Yutaka DOSHIDA , Yoshiyuki WATANABE
CPC classification number: H04R17/00 , H04R1/1075 , H04R1/24 , H04R1/2842 , H04R5/033 , H04R7/20 , H04R17/10 , H04R31/003 , H04R31/006 , H04R2205/022 , H04R2217/01 , H04R2499/11
Abstract: An electroacoustic transducer has a housing, piezoelectric speaker, dynamic speaker, and support member. The piezoelectric speaker includes a vibration plate having a first surface and a second surface on the opposite side of the first surface, as well as a piezoelectric element joined to at least one of the first surface and second surface, and divides the interior of the housing into a first space facing the first surface and a second space facing the second surface. The dynamic speaker is placed in the first space. The support member is constituted by a part of the housing or by a member different from the housing, has a supporting part facing the first surface or second surface, and supports the periphery of the first surface or second surface with the supporting part.
Abstract translation: 电声换能器具有壳体，压电扬声器，动态扬声器和支撑构件。 压电扬声器包括振动板，其具有在第一表面的相对侧上的第一表面和第二表面，以及连接到第一表面和第二表面中的至少一个的压电元件，并且将壳体的内部 进入面向第一表面的第一空间和面向第二表面的第二空间。 动态扬声器放置在第一个空间中。 支撑构件由壳体的一部分或不同于壳体的构件构成，具有面向第一表面或第二表面的支撑部分，并且用支撑部件支撑第一表面或第二表面的周边。
-
Patent Agency Ranking
公开(公告)号：US20210048888A1
公开(公告)日：2021-02-18
申请号：US16991474
申请日：2020-08-12
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Hiroshi HAMADA , Yukihiro MATSUI , Takashi TOMITA
Abstract: A panel includes a vibration plate having a generally rectangular shape; and a piezoelectric actuator that is provided on a main surface of the vibration plate and causes the vibration plate to vibrate, in which the vibration plate is configured such that a length x in mm of a long side of the vibration plate and logarithmic decrement y of the vibration plate satisfy Expression 1 below: y≤32.6x−1 (Expression 1).
-
公开(公告)号：US20190265795A1
公开(公告)日：2019-08-29
申请号：US16276472
申请日：2019-02-14
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shigeo ISHII , Takashi TOMITA , Hiroshi HAMADA , Fumihisa ITO , Yukihiro MATSUI
IPC: G06F3/01 , B06B1/06 , H01L41/053
Abstract: A vibration generating device 90 for non-acoustic applications, includes: a piezoelectric element 11; a diaphragm 82 attached to the piezoelectric element 11 on a first side in a first direction; and a first frame body 84 provided along an outer peripheral portion of the diaphragm 82 to transmit vibration of the diaphragm 82 to a vibration object member 60, wherein the first frame body 84 is connectable to the vibration object member 60 in such a manner that the first frame body 84, the diaphragm 82 and the vibration object member 60 form an enclosed space 64.
-
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.
-
公开(公告)号：US20190262864A1
公开(公告)日：2019-08-29
申请号：US16276488
申请日：2019-02-14
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Hiroshi HAMADA , Yukihiro MATSUI , Fumihisa ITO , Takashi TOMITA
IPC: B06B1/06
Abstract: A vibration generating device 90 includes: a housing 30 in a rectangular shape as viewed in a first direction, the housing 30 comprising: a first support portion 31 extending along a first side in a second direction perpendicular to the first direction and; a second support portion 32 extending along a second side opposite to the first side in the second direction; a panel 60 supported by the first support portion and the second support portion; and a piezoelectric element 11 attached to the panel in such a manner as to be shifted in the second direction toward the first side with respect to a central portion of the panel, wherein a width in the second direction of a portion of the panel supported by the first support portion is larger than a width in the second direction of a portion of the panel supported by the second support portion.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.014 seconds)
