中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.012 seconds)

    Piezoelectric sounder
    1.
    发明授权
    Piezoelectric sounder 有权
    压电式发声器

    公开(公告)号：US09055373B2

    公开(公告)日：2015-06-09

    申请号：US14031724

    申请日：2013-09-19

    Applicant: TDK CORPORATION

    Inventor： Kaoru Kijima ,  Akira Satoh

    IPC: H04R17/10 ,  H04R17/00 ,  H04R1/28

    CPC classification number: H04R17/10 ,  H04R1/2803 ,  H04R1/2888 ,  H04R17/00 ,  H04R2400/00 ,  H04R2499/11

    Abstract: A piezoelectric sounder for transmitting a signal by using a sound comprises a piezoelectric diaphragm constructed by attaching a piezoelectric element to a metal sheet, a ease containing the piezoelectric diaphragm and having a resonance space defined therewithin and adapted to resonate as the piezoelectric diaphragm vibrates, a pair of terminals electrically connected to the metal sheet and piezoelectric element of the piezoelectric diaphragm, while the piezoelectric sounder has no resonance points fr, fa in a frequency range of the signal. Thus removing the resonance points fr, fa from the frequency band of the signal to be transmitted prevents the signal transmission distance from shortening at the resonance points, thereby improving the stability in communications.

    Abstract translation: 用于通过使用声音发送信号的压电发声器包括通过将压电元件附接到金属片而构成的压电隔膜，容易地包含压电振动膜并且具有限定在其中并且随着压电振动板振动而谐振的谐振空间， 电压连接到金属片和压电振动片的压电元件的一对端子，而压电发声器在信号的频率范围内没有共振点fr，fa。 因此，从发射信号的频带去除谐振点fr，fa防止信号传输距离在共振点缩短，从而提高通信的稳定性。

    Acoustic device with a piezoelectric element
    2.
    发明授权
    Acoustic device with a piezoelectric element 有权

    公开(公告)号：US11581825B2

    公开(公告)日：2023-02-14

    申请号：US16871410

    申请日：2020-05-11

    Applicant: TDK Corporation

    Inventor： Akira Satoh ,  Yoshikazu Shimura ,  Kaoru Kijima

    IPC: H02N2/00 ,  B06B1/06

    Abstract: An acoustic device includes a piezoelectric element, an attachment member to which the piezoelectric element is attached, and a spacer. The piezoelectric element includes first and second principal surfaces opposing each other. The attachment opposes the first principal surface. The spacer is disposed between the piezoelectric element and the attachment member in such a manner as to form an acoustic space between the piezoelectric element and the attachment member. The spacer includes an adhesive layer including a principal surface in contact with the first principal surface and a principal surface in contact with the attachment member.

    Vibration device
    4.
    发明授权
    Vibration device 有权

    公开(公告)号：US12225826B2

    公开(公告)日：2025-02-11

    申请号：US18079292

    申请日：2022-12-12

    Applicant: TDK CORPORATION

    Inventor： Akira Satoh ,  Kaoru Kijima

    IPC: H10N30/87 ,  H04R17/00 ,  H10N30/88

    Abstract: A vibration device includes: a piezoelectric unit including a piezoelectric element; a housing that holds the piezoelectric unit; a wiring member electrically connected to the piezoelectric unit; and a joining member that joins the housing to an external device. The housing includes a bottom surface portion to which the piezoelectric unit is fixed, and a side surface portion standing at an edge portion of the bottom surface portion. The side surface portion has a first surface formed on a top portion of the side surface portion, and a second surface that is one step lowered from the first surface by a cutout portion formed in the top portion. The joining member extends along the first surface to bridge over the cutout portion. The wiring member is joined to the joining member at a position of the first surface, and passes through the cutout portion in a state where the wiring member is not joined to the second surface.

    Acoustic device and sound generation device
    8.
    发明授权
    Acoustic device and sound generation device 有权

    公开(公告)号：US11968496B2

    公开(公告)日：2024-04-23

    申请号：US17908058

    申请日：2021-03-05

    Applicant: TDK CORPORATION

    Inventor： Akira Satoh ,  Kaoru Kijima

    IPC: H04R17/00

    CPC classification number: H04R17/00

    Abstract: An acoustic device 3 includes a piezoelectric element and a housing 30. The housing 30 includes a main body portion 31 and a rib portion 35. The main body portion 31 includes a vibrating portion 32 and a plurality of support portions 33. The rib portion 35 is connected to the main body portion 31. The rib portion 35 extends in a third direction between a pair of the support portions 34a and 341) facing each other and separated from each other in the third direction intersecting a second direction, when viewed from the second direction along a vibrating surface. A hollow region V is defined by the vibrating portion 32 and the plurality of support portions 33, The above opening S1 is defined by the rib portion 35 and the main body portion 31 and communicates with the hollow region V. The rib portion 35 covers the middle of the hollow region V when viewed from the second direction.

    Piezoelectric module
    9.
    发明授权
    Piezoelectric module 有权

    公开(公告)号：US10511389B2

    公开(公告)日：2019-12-17

    申请号：US15230981

    申请日：2016-08-08

    Applicant: TDK CORPORATION

    Inventor： Kaoru Kijima ,  Akira Satoh

    IPC: H04B11/00 ,  H04R17/00 ,  G10K11/00 ,  B06B1/06

    Abstract: Provided is a piezoelectric module capable of attempting further miniaturization. In the piezoelectric module, a resonance point is excluded from a frequency band of a transmitted signal to avoid shortening of a signal transmission distance, thereby attempting improvement in stability of communication. In addition, since a resonance space is not provided, further miniaturization may be easily attempted.

    Piezoelectric sounding body
    10.
    发明授权
    Piezoelectric sounding body 有权

    公开(公告)号：US10311853B2

    公开(公告)日：2019-06-04

    申请号：US15234825

    申请日：2016-08-11

    Applicant: TDK Corporation

    Inventor： Akira Satoh ,  Kaoru Kijima

    IPC: H01L41/053 ,  G10K9/122 ,  G10K9/22

    Abstract: A piezoelectric sounding body includes: a piezoelectric vibrating plate; a case housing the piezoelectric vibrating plate; a first conductive terminal electrically connected to one electrode in the piezoelectric vibrating plate; and a second conductive terminal electrically connected to the other electrode in the piezoelectric vibrating plate. The case includes: a lower case where the first conductive terminal and the second conductive terminal are fixed; and an upper case configured to be fixed in a caulking manner to the lower case and to sandwich the piezoelectric vibrating plate between the upper case and the lower case.

Patent Agency Ranking