专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06498434B2 Piezoelectric transformer, driver circuit incorporating the piezoelectric transformer, and liquid crystal display apparatus incorporating the driver circuit 失效
标题翻译：压电变压器，并入压电变压器的驱动电路和结合有驱动电路的液晶显示装置
公开(公告)号：US06498434B2
公开(公告)日：2002-12-24
申请号：US09836076
申请日：2001-04-17
申请人： Akiteru Takatsuka , Takaaki Asada
发明人： Akiteru Takatsuka , Takaaki Asada
IPC分类号： H01J1346
CPC分类号： H01L41/107 , H05B41/2822 , H05B41/36
摘要： A piezoelectric transformer includes a piezoelectric unit. The piezoelectric unit includes a plurality of driver units divided by at least one groove extending in the longitudinal direction of the piezoelectric unit from one end thereof, and also includes a plurality of generator units, opposing the driver units, divided by at least one groove extending in the longitudinal direction of the piezoelectric unit from the other end thereof. Opposing pairs of the driver units and the generator units constitute a plurality of transformer units. The transformer units differ in length from one another.
摘要翻译：压电变压器包括压电单元。所述压电单元包括多个驱动单元，所述多个驱动器单元由至少一个沿所述压电单元的纵向方向从其一端延伸的凹槽分隔开，并且还包括与所述驱动单元相对的多个发电机单元，所述多个发电机单元被至少一个凹槽延伸在压电单元的另一端的纵向方向上。驱动单元和发电机单元的相对对构成多个变压器单元。变压器单元的长度彼此不同。

2. 发明授权

US07388317B2 Ultrasonic transmitting/receiving device and method for fabricating the same 有权
标题翻译：超声波发射/接收装置及其制造方法
公开(公告)号：US07388317B2
公开(公告)日：2008-06-17
申请号：US10788203
申请日：2004-02-27
申请人： Takaaki Asada , Akiteru Takatsuka
发明人： Takaaki Asada , Akiteru Takatsuka
IPC分类号： H01L41/08
CPC分类号： G01H5/00
摘要： An ultrasonic transmitting/receiving device that effectively suppresses ringing during emission of ultrasonic waves and improves time resolution when measuring a sonic velocity includes a pair of ultrasonic transducers. Each of the ultrasonic transducers has a piezoelectric vibrator including a first electrode and a second electrode that are separated by a piezoelectric body and a backing disposed in contact with the first electrode and composed of the same material as a material of the piezoelectric body. The ultrasonic transducers are connected by a support so as to face each other and have a substantially rectangular U-shape as a whole when viewed from the side.
摘要翻译：一种超声波发射/接收装置，其在发射超声波时有效地抑制振铃并且在测量声速时提高时间分辨率包括一对超声换能器。每个超声波换能器都具有压电振子，该压电振动器包括由压电体隔开的第一电极和第二电极以及与第一电极接触并由与压电体的材料相同的材料构成的背衬。超声波换能器通过支撑体相互连接，从侧面观察时整体上呈大致矩形的U字形状。

3. 发明授权

US06819028B2 Method for selecting piezoelectric transformer characteristic 有权
标题翻译：选择压电变压器特性的方法
公开(公告)号：US06819028B2
公开(公告)日：2004-11-16
申请号：US09811660
申请日：2001-03-19
申请人： Akiteru Takatsuka , Takaaki Asada
发明人： Akiteru Takatsuka , Takaaki Asada
IPC分类号： H01L41107
CPC分类号： H01L41/107 , H01L41/044
摘要： A method for selecting a piezoelectric transformer characteristic includes the steps of connecting a primary-side driving section of a piezoelectric transformer to a high-frequency generator while leaving a secondary-side generating section thereof in an open state, causing the high-frequency generator to sequentially generate and sweep a high-frequency signal over a predetermined frequency range, measuring a resonant frequency of an input-impedance-versus-frequency characteristic of the piezoelectric transformer, and selecting the characteristic of the piezoelectric transformer based on the value of the measured resonant frequency.
摘要翻译：选择压电变压器特性的方法包括以下步骤：将压电变压器的初级侧驱动部分连接到高频发生器，同时使二次侧发生部分处于打开状态，使高频发生器在预定频率范围内依次生成和扫描高频信号，测量压电变压器的输入阻抗对频率特性的谐振频率，并根据测得的谐振值选择压电变压器的特性频率。

4. 发明授权

US06229251B1 Monolithic piezoelectric transformer 失效
标题翻译：单片压电变压器
公开(公告)号：US06229251B1
公开(公告)日：2001-05-08
申请号：US09268550
申请日：1999-03-15
申请人： Takaaki Asada , Akiteru Takatsuka , Toshiaki Kaji
发明人： Takaaki Asada , Akiteru Takatsuka , Toshiaki Kaji
IPC分类号： H01L4108
CPC分类号： H01L41/107
摘要： A monolithic piezoelectric transformer includes a piezoelectric substrate and input electrodes which include internal electrodes disposed in the piezoelectric substrate alternately and between piezoelectric ceramic layers and external electrodes provided on the corresponding upper and lower surfaces of the piezoelectric substrate. The length of the external electrodes is about 50% of an overall length L of the piezoelectric substrate. The length of the internal electrodes is longer than approximately 50% of the overall length L.
摘要翻译：单片式压电变压器包括压电基板和输入电极，输入电极包括交替设置在压电基片内的压电陶瓷层和设置在压电基板的相应上表面和下表面上的外部电极之间的内部电极。外部电极的长度为压电基板的总长度L的约50％。内部电极的长度大于总长度L的约50％。

5. 发明授权

US5894185A Piezoelectric transformer 失效
标题翻译：压电变压器
公开(公告)号：US5894185A
公开(公告)日：1999-04-13
申请号：US714822
申请日：1996-09-17
申请人： Takaaki Asada , Hideya Horiuchi , Akiteru Takatsuka , Michio Kadota
发明人： Takaaki Asada , Hideya Horiuchi , Akiteru Takatsuka , Michio Kadota
IPC分类号： H01L41/107 , H01L41/04
CPC分类号： H01L41/107
摘要： A piezoelectric transformer includes a piezoelectric plate in which a pair of cuts are formed in the piezoelectric plate at a position corresponding to a nodal point of the piezoelectric plate. The pair of cuts form a cut-out projection. Connection electrodes electrically connected to input electrodes are respectively formed on input-side cut-out projections. In this piezoelectric transformer, the desired support and electrical connection are made through the cut-out projections.
摘要翻译：一种压电变压器包括压电板，其中在与压电板的节点对应的位置处在压电板中形成一对切口。一对切口形成一个切口投影。电连接到输入电极的连接电极分别形成在输入侧切口突起上。在这种压电变压器中，通过切口突起形成所需的支撑和电连接。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式