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1. 发明授权

US4424465A Piezoelectric vibration transducer 失效
标题翻译：压电式振动传感器
公开(公告)号：US4424465A
公开(公告)日：1984-01-03
申请号：US434713
申请日：1982-10-15
申请人： Hiroji Ohigashi , Toshiharu Nakanishi , Miyo Suzuki
发明人： Hiroji Ohigashi , Toshiharu Nakanishi , Miyo Suzuki
IPC分类号： B06B1/06 , H01L41/09 , H01L41/08
CPC分类号： B06B1/0622 , Y10S310/80
摘要： A piezoelectric vibration transducer is disclosed which includes a polymeric piezoelectric film as the active element. The film is a selectively or fully polarized, uniaxially oriented material selected from the group of polyvinylidene fluoride, blended material such as polyvinylidene fluoride and PZT powder, polyvinyl fluoride, polyacrylonitrile, copolymers or vinylidene fluoride such as vinylidene fluoride and tetrafluoroethylene or trifluoroethylene. The film is bonded to electrode strips formed by printed circuit methods and then overcoated with a front electrode layer. The sandwich formed by the electrode layers and intermediate polymeric piezoelectric film can be reversed so that the front electrode layer is discontinuous while the back electrode layer is continuous, or both electrode layers can be formed to be discontinuous. Special configurations for the discontinuous pattern of electrode layers can be employed such as that specified by Fresnel's theory.
摘要翻译：公开了一种压电振动传感器，其包括作为有源元件的聚合物压电膜。该膜是选自聚偏二氟乙烯，聚偏二氟乙烯和PZT粉末，聚氟乙烯，聚丙烯腈，共轭或偏二氟乙烯如偏二氟乙烯和四氟乙烯或三氟乙烯的共混材料的选择性或完全极化的单轴取向材料。将该膜粘合到通过印刷电路方法形成的电极条上，然后用前电极层涂覆。由电极层和中间聚合物压电膜形成的夹层可以反转，使得前电极层不连续，而背电极层是连续的，或者两个电极层可以形成为不连续的。可以采用电极层不连续图案的特殊配置，如菲涅耳理论规定的那样。

2. 发明授权

US4296349A Ultrasonic transducer 失效
标题翻译：超声波换能器
公开(公告)号：US4296349A
公开(公告)日：1981-10-20
申请号：US120782
申请日：1980-02-12
申请人： Toshiharu Nakanishi , Miyo Suzuki , Hiroji Ohigashi
发明人： Toshiharu Nakanishi , Miyo Suzuki , Hiroji Ohigashi
IPC分类号： A61B8/00 , B06B1/06 , G01B17/00 , G10K11/28 , H04R17/00 , H01L41/08
CPC分类号： G10K11/28 , B06B1/0677 , Y10S310/80
摘要： Ultrasonic transducer advantageously usable for diagnostic purpose includes a piezoelectric element such as a PVDF film backed with a reflective layer of a reduced thickness specified in relation to the wavelength of sound waves within the reflective layer at one-half of the free resonant frequency of the piezoelectric element. Remarkable reduction in thickness assures high transfer efficiency, broad available frequency-band and easy application of fine treatments such as etching.
摘要翻译：有利地用于诊断目的的超声波换能器包括压电元件，例如PVDF膜，其背面具有相对于反射层内的声波的波长规定的减小厚度的反射层，其厚度为压电自由共振频率的一半元件。厚度的显着降低确保了高转印效率，广泛的可用频带和易于应用精细处理如蚀刻。

3. 发明授权

US4395652A Ultrasonic transducer element 失效
标题翻译：超声波换能器元件
公开(公告)号：US4395652A
公开(公告)日：1983-07-26
申请号：US186258
申请日：1980-09-11
申请人： Toshiharu Nakanishi , Miyo Suzuki , Hiroji Ohigashi
发明人： Toshiharu Nakanishi , Miyo Suzuki , Hiroji Ohigashi
IPC分类号： G10K11/32 , H01L41/02
CPC分类号： G10K11/32 , Y10S310/80
摘要： An ultrasonic transducer element includes a polymer piezoelectric film having a plurality of sections. The sections are defined by wave planes of ultrasonic waves having substantially .lambda./2 phase difference emanated from an imaginary focal point or line located in front of the piezoelectric film. .lambda. is the wave length of the ultrasonic waves within an acoustic transmission medium located between the piezoelectric film and the imaginary focal point or line. The sections are arranged so that ultrasonic waves emanated from adjacent sections have substantially no phase difference at the imaginary focal point or line. Front and rear electrodes are deposited on opposite surfaces of the piezoelectric film.
摘要翻译：超声波换能器元件包括具有多个部分的聚合物压电薄膜。这些部分由具有从位于压电膜前方的假想焦点或线发出的基本上λ/ 2相位差的超声波的波面限定。 λ是位于压电膜和虚拟焦点或线之间的声传播介质内的超声波的波长。这些部分布置成使得从相邻部分发出的超声波在假想焦点或线处基本上没有相位差。前后电极沉积在压电膜的相对表面上。

4. 发明授权

US4383194A Electro-acoustic transducer element 失效
标题翻译：电声换能器元件
公开(公告)号：US4383194A
公开(公告)日：1983-05-10
申请号：US143132
申请日：1980-04-23
申请人： Hiroji Ohigashi , Joshiharu Nakanishi , Miyo Suzuki
发明人： Hiroji Ohigashi , Joshiharu Nakanishi , Miyo Suzuki
IPC分类号： B06B1/06 , G10K11/02 , H01L41/04
CPC分类号： G10K11/02 , B06B1/0688 , Y10S310/80
摘要： Electro-acoustic transducer element having its resonant frequency in a lower frequency range advantageously usable for diagnostic purposes comprises a polymeric piezoelectric film such as polyvinylidene fluoride film being coupled with an additional layer having a thickness specified in relation to the wavelength of sound waves within the additional layer at the free resonant frequency of the polymeric piezoelectric film, the additional layer having an acoustic impedance related to the acoustic impedance of the polymeric piezoelectric film.
摘要翻译：具有有利于用于诊断目的的较低频率范围内的谐振频率的电声换能器元件包括诸如聚偏二氟乙烯膜的聚合物压电膜与附加层耦合，附加层具有相对于额外的声波波长所规定的厚度在聚合物压电薄膜的自由共振频率处，附加层具有与聚合物压电薄膜的声阻抗相关的声阻抗。

5. 发明授权

US4578442A Piezoelectric polymeric material, a process for producing the same and an ultrasonic transducer utilizing the same 失效
标题翻译：压电聚合材料，其制造方法和利用其的超声换能器
公开(公告)号：US4578442A
公开(公告)日：1986-03-25
申请号：US510687
申请日：1983-07-05
申请人： Hiroji Ohigashi , Keiko Koga , Toshiharu Nakanishi
发明人： Hiroji Ohigashi , Keiko Koga , Toshiharu Nakanishi
IPC分类号： H01L41/193 , C04B35/00 , C08F214/22
CPC分类号： H01L41/193
摘要： A piezoelectric polymeric material having utility in ultrasonic transducers is disclosed which consists essentially of a copolymer of about 65 to 82 mol percent of vinylidene fluoride and about 35 to 18 mol percent of ethylene trifluoride. The polymeric material is formed into a film of the desired thickness and then heated to a temperature greater than about the crystal phase transition temperature and less than about the melting-point temperature to produce a heat-treated film. The heat-treated film is poled in an electrical field of from about 50 to about 1,500 kilovolts per centimeter to give the film a thickness extensional electromechanical coupling factor of at least 0.05 and preferably greater than 0.2.
摘要翻译：公开了一种用于超声波换能器的压电聚合材料，其基本上由约65至82摩尔％的偏二氟乙烯和约35至18摩尔％的三氟乙烯的共聚物组成。将聚合物材料形成为所需厚度的膜，然后加热至大于约晶体相转变温度并小于约熔点温度的温度以产生热处理膜。热处理的膜在约50至约1500千伏/厘米的电场中极化，以使膜的厚度延伸机电耦合系数至少为0.05，优选大于0.2。

6. 发明授权

US4577132A Ultrasonic transducer employing piezoelectric polymeric material 失效
标题翻译：超声波换能器采用压电聚合材料
公开(公告)号：US4577132A
公开(公告)日：1986-03-18
申请号：US662946
申请日：1984-10-19
申请人： Hiroji Ohigashi , Keiko Koga , Toshiharu Nakanishi
发明人： Hiroji Ohigashi , Keiko Koga , Toshiharu Nakanishi
IPC分类号： B06B1/06 , H01L41/08
CPC分类号： B06B1/0688 , Y10T29/42
摘要： An ultrasonic transducer is disclosed which includes a vibrating element comprising a sheet of a piezoelectric polymeric material which consists essentially of a copolymer of about 65 to 82 mol percent of vinylidene fluoride and about 35 to 18 mol percent of ethylene trifluoride. The polymeric material is formed into a film of the desired thickness and then heated to a temperature greater than about the crystal phase transition temperature and less than about the melting-point temperature for a period of time of about ten minutes to about two hours to produce a heat-treated film. The heat-treated film is poled in an electrical field of from about 50 to about 1,500 kilovolts per centimeter to give the film a thickness extensional electromechanical coupling factor of at least 0.05 and preferably greater than 0.2.
摘要翻译：公开了一种超声波换能器，其包括振动元件，该振动元件包括压电聚合材料片，该片材基本上由约65至82摩尔％的偏二氟乙烯和约35至18摩尔百分数的三氟乙烯的共聚物组成。将聚合物材料形成为所需厚度的膜，然后加热到大于约晶体相转变温度并且小于约熔点温度的温度约10分钟至约2小时的时间段以产生热处理膜。热处理的膜在约50至约1500千伏/厘米的电场中极化，以使膜的厚度延伸机电耦合系数至少为0.05，优选大于0.2。

7. 发明申请

US20130027339A1 TRANSPARENT PIEZOELECTRIC SHEET-WITH-A-FRAME, TOUCH PANEL, AND ELECTRONIC DEVICE EACH HAVING THE TRANSPARENT PIEZOELECTRIC SHEET 有权
标题翻译：具有透明压电片的透明压电片与触摸屏，触控面板和电子器件
公开(公告)号：US20130027339A1
公开(公告)日：2013-01-31
申请号：US13639825
申请日：2011-02-28
申请人： Tetsuhiro Kodani , Yuuki Kuwajima , Eri Mukai , Meiten Koh , Takashi Kanemura , Kenji Omote , Hiroji Ohigashi
发明人： Tetsuhiro Kodani , Yuuki Kuwajima , Eri Mukai , Meiten Koh , Takashi Kanemura , Kenji Omote , Hiroji Ohigashi
IPC分类号： H01L41/053 , H01L41/193 , G06F3/041
CPC分类号： G01L1/16 , G06F3/041 , G06F2203/04105
摘要： A transparent piezoelectric sheet-with-a-frame includes a transparent piezoelectric sheet and a frame covering a peripheral edge portion of the transparent piezoelectric sheet. The transparent piezoelectric sheet includes one transparent piezoelectric film including an organic polymer, one first transparent plate electrode placed on a first main surface of the transparent piezoelectric film and having a first transparent plate electrode portion, and one second transparent plate electrode placed on a second main surface of the transparent piezoelectric film and having a second transparent plate electrode portion. An outline of the second transparent plate electrode portion is positioned inside an outline of the first transparent plate electrode portion as seen in a plan view. The outline of the first transparent plate electrode portion completely coincides with the frame, and the outline of the second transparent plate electrode portion does not at all coincide with the frame as seen in the plan view.
摘要翻译：透明的压电片式框架包括透明压电片和覆盖透明压电片的周缘部的框架。透明压电片包括一个透明压电薄膜，它包括一个有机聚合物，一个第一透明板电极放置在透明压电薄膜的第一主表面上，并具有第一透明板电极部分，一个第二透明板电极放置在第二主体上并具有第二透明板电极部分。第二透明板电极部分的轮廓位于第一透明板电极部分的轮廓内，如平面图所示。第一透明板电极部分的轮廓与框架完全一致，并且如平面图所示，第二透明板电极部分的轮廓与框架完全不一致。

8. 发明授权

US4234813A Piezoelectric or pyroelectric polymer input element for use as a transducer in keyboards 失效
标题翻译：用于键盘传感器的压电或热电聚合物输入元件
公开(公告)号：US4234813A
公开(公告)日：1980-11-18
申请号：US28822
申请日：1979-04-10
申请人： Heishaburo Iguchi , Hiroji Ohigashi
发明人： Heishaburo Iguchi , Hiroji Ohigashi
IPC分类号： G06F3/02 , H01H13/00 , H01L37/02 , H01L41/113 , H03K17/96 , H03K17/965 , H01L41/08 , H01L41/18
CPC分类号： H01L41/1132 , H01L37/02 , H03K17/9643 , H03K17/965 , Y10S310/80
摘要： An input element for use as a transducer in keyboards is disclosed, which utilizes a polymeric material having piezoelectric or pyroelectric property as a stimulus-receiving portion of the element. The element has a plurality of stimulus-receiving portions. One face of each of stimulus-receiving portions has mutually independent electrodes, of which one is for detecting signal and another is for earthing, and another face of each stimulus-receiving portions has mutually independent electrodes, of which one is for detecting signal and another is for earthing. The signal-detecting electrode on the one face is disposed corresponding to the earthing electrode on the another face.
摘要翻译：公开了用作键盘中的换能器的输入元件，其利用具有压电或热电性质的聚合材料作为元件的刺激接收部分。元件具有多个刺激接收部分。每个刺激接收部分的一个面具有相互独立的电极，其中一个用于检测信号，另一个用于接地，并且每个刺激接收部分的另一个面具有相互独立的电极，其中一个用于检测信号，另一个用于检测信号用于接地。一个面上的信号检测电极相对于另一个面上的接地电极设置。

9. 发明授权

US09128547B2 Transparent piezoelectric sheet, and transparent piezoelectric sheet-with-a-frame, touch panel, and electronic device each having the transparent piezoelectric sheet 有权
标题翻译：透明的压电片，透明的压电片一面，触摸面板，以及具有透明的压电片的电子装置
公开(公告)号：US09128547B2
公开(公告)日：2015-09-08
申请号：US13639830
申请日：2011-02-28
申请人： Tetsuhiro Kodani , Yuuki Kuwajima , Eri Mukai , Takashi Kanemura , Meiten Koh , Kenji Omote , Hiroji Ohigashi
发明人： Tetsuhiro Kodani , Yuuki Kuwajima , Eri Mukai , Takashi Kanemura , Meiten Koh , Kenji Omote , Hiroji Ohigashi
IPC分类号： H01L41/047 , G01L7/08 , G01L9/06 , G06F3/041
CPC分类号： G06F3/041 , G06F2203/04105 , H01L41/0478 , H01L41/1132 , H01L41/193
摘要： A transparent piezoelectric sheet includes a quadrilateral-shaped transparent piezoelectric film and a first transparent plate electrode. The quadrilateral-shaped transparent piezoelectric film includes an organic polymer. The quadrilateral-shaped transparent piezoelectric film has entire main surfaces that are piezoelectric. The first transparent plate electrode is layered on part of a first main surface of the main surfaces of the transparent piezoelectric film. One to three sides of the four sides of the quadrilateral shape of the transparent piezoelectric film and area(s) of the first main surface adjacent thereto are not covered by the first transparent plate electrode.
摘要翻译：透明压电片包括四边形透明压电膜和第一透明板电极。四边形透明压电膜包括有机聚合物。四边形透明压电膜具有压电的整个主表面。第一透明板电极层叠在透明压电膜的主表面的第一主表面的一部分上。透明压电薄膜的四边形四边形的一侧到另一侧，与其相邻的第一主表面的一个或多个区域不被第一透明板电极覆盖。

10. 发明授权

US06843941B2 Method for fabricating a ferroelectric polymer film 有权
标题翻译：铁电聚合物膜的制造方法
公开(公告)号：US06843941B2
公开(公告)日：2005-01-18
申请号：US10133747
申请日：2002-04-29
申请人： Hiroji Ohigashi
发明人： Hiroji Ohigashi
IPC分类号： B29C55/04 , B29C71/02 , B29K27/12 , B29L7/00 , B29L11/00 , C08J5/18 , C08L27/12 , H01L37/02 , H01L41/08 , H01L41/45 , B29C55/06 , B29C69/02
CPC分类号： H01L41/45 , B29C55/04 , B29C71/02 , B29K2027/16 , B29K2027/18
摘要： A film made of a vinylidene-trifluoroethylene or tetrafluoroethylene copolymer is uniaxially drawn to fabricate a uniaxially drawn film. Then, the uniaxially drawn film is thermally treated at a temperature within a temperature range of the Curie temperature through the melting point of the vinylidene-trifluoroethylene or tetrafluoroethylene copolymer for five hours or over, to diffuse the molecular chains of the uniaxially drawn film along the orientation direction and thus, to remove the intertwining between the molecular chains.
摘要翻译：将由亚乙烯基 - 三氟乙烯或四氟乙烯共聚物制成的薄膜单轴拉伸以制造单轴拉伸薄膜。然后，将单轴拉伸膜在居里温度的温度范围内通过亚乙烯基 - 三氟乙烯或四氟乙烯共聚物的熔点进行热处理5小时以上，以使单轴拉伸膜的分子链沿着取向方向，从而消除分子链之间的交织。

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