专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US08022794B2 Micromachine switch, filter circuit, duplexer circuit, and communication device 有权
标题翻译：微机械开关，滤波电路，双工器电路和通讯装置
公开(公告)号：US08022794B2
公开(公告)日：2011-09-20
申请号：US12297334
申请日：2007-04-25
申请人： Hiroshi Nakatsuka , Takehiko Yamakawa , Keiji Onishi
发明人： Hiroshi Nakatsuka , Takehiko Yamakawa , Keiji Onishi
IPC分类号： H01P1/10 , H01H57/00
CPC分类号： B81B5/00 , B81B2201/018 , B81B2201/034 , H01H1/0036 , H01P1/127
摘要： A micromachine switch switches an electrical connection between signal electrodes in accordance with control signals. The micromachine switch includes a substrate, a rotating body provided on the substrate, and a movable electrode provided on the rotating body. The micromachine switch also includes a first signal electrode, one end of which is electrically connected to one end of the movable electrode, and a second signal electrode provided near the rotating body to be positioned such that a rotation of the rotating body causes the second signal electrode to be electrically connected to another end of the movable electrode. Further, a drive section causes, based on a first control signal, the rotating body to rotate until the movable electrode and the second signal electrode are electrically connected, and causes, based on a second control signal, the rotating body to rotate until the movable electrode and the second signal electrode are disconnected.
摘要翻译：微机械开关根据控制信号切换信号电极之间的电气连接。微机械开关包括基板，设置在基板上的旋转体和设置在旋转体上的可动电极。微机械开关还包括第一信号电极，其一端电连接到可动电极的一端，以及第二信号电极，设置在旋转体附近，以定位成使得旋转体的旋转引起第二信号电极电连接到可动电极的另一端。此外，驱动部基于第一控制信号使旋转体旋转直到可动电极和第二信号电极电连接，并且基于第二控制信号使旋转体旋转直到可动电极和第二信号电极断开。

52. 发明授权

US07893793B2 Film bulk acoustic wave resonator and method for manufacturing the same 失效
标题翻译：薄膜体声波谐振器及其制造方法
公开(公告)号：US07893793B2
公开(公告)日：2011-02-22
申请号：US11844809
申请日：2007-08-24
申请人： Tomohiro Iwasaki , Keiji Onishi , Hiroshi Nakatsuka , Takehiko Yamakawa , Tomohide Kamiyama
发明人： Tomohiro Iwasaki , Keiji Onishi , Hiroshi Nakatsuka , Takehiko Yamakawa , Tomohide Kamiyama
IPC分类号： H03H9/15 , H03H9/54 , H03H9/70
CPC分类号： H03H9/177 , H03H9/173 , H03H9/174 , H03H9/175 , H03H9/564 , H03H9/605
摘要： A film bulk acoustic wave resonator including a piezoelectric body 1, and a first electrode 2 and a second electrode 3 that are provided respectively on the main surfaces of the piezoelectric body, the piezoelectric body being applied an electric field through the first and the second electrodes so as to generate a resonant vibration. A first mass load material portion 4 having an annular shape is provided outside the planar region of the first electrode on the main surface of the piezoelectric body, a mass load effect thereof being larger than that of the first electrode. The outer periphery of the first electrode and the inner periphery of the first mass load material portion are spaced apart from each other, whereby the first electrode and the first mass load material portion are electrically insulated from each other. The first mass load material portion has a laminated structure including a first auxiliary electrode layer 2a and a load material layer 4a formed on the auxiliary electrode layer. The first auxiliary electrode is formed with the same material to have the same thickness as the first electrode. Energy loss can be reduced, while the first mass load material portion can be formed easily with high precision.
摘要翻译：一种包括分别设置在压电体的主表面上的压电体1和第一电极2和第二电极3的薄膜体声波谐振器，压电体通过第一和第二电极施加电场以产生共振振动。具有环状的第一质量负荷材料部分4设置在压电体的主表面上的第一电极的平面区域的外侧，其质量负载效应大于第一电极的质量负载效应。第一电极的外周和第一质量负载材料部的内周彼此间隔开，由此第一电极和第一质量负载材料部彼此电绝缘。第一质量负载材料部分具有包括形成在辅助电极层上的第一辅助电极层2a和负载材料层4a的叠层结构。第一辅助电极由相同的材料形成，以具有与第一电极相同的厚度。能够容易地以高精度形成第一质量负荷材料部，能够减少能量损失。

53. 再颁专利

USRE42009E1 Piezoelectric resonator having a spurious component control layer, filter using the piezoelectric resonator, and duplexer using the piezoelectric resonator 失效
标题翻译：具有杂散分量控制层的压电谐振器，使用压电谐振器的滤波器，以及使用压电谐振器的双工器
公开(公告)号：USRE42009E1
公开(公告)日：2010-12-28
申请号：US12068675
申请日：2008-02-08
申请人： Hiroshi Nakatsuka , Keiji Onishi , Hiroyuki Nakamura , Takehiko Yamakawa
发明人： Hiroshi Nakatsuka , Keiji Onishi , Hiroyuki Nakamura , Takehiko Yamakawa
IPC分类号： H01L41/09 , H03H9/17
CPC分类号： H03H9/588 , H03H9/02094 , H03H9/02102 , H03H9/0211 , H03H9/173 , H03H9/174 , H03H9/175 , H03H9/585 , H03H9/589
摘要： A piezoelectric resonator of the present invention is structured such that on a substrate 5 having a cavity 4 formed therein, a lower electrode 3, a piezoelectric body 1, a spurious component control layer 16, and an upper electrode 2 are formed in this order from bottom up. The spurious component control layer 16 is a layer for controlling a spurious frequency, and composed of, for example, a metallic material, a dielectric material, or a piezo electric material. By additionally providing the spurious component control layer 16, it is made possible to cause variation of the spurious frequency due to unwanted variation to become greater than variation in resonance frequency of the main resonance of the piezoelectric resonator. Thus, it is possible to realize a piezoelectric resonator having an admittance frequency response where no spurious component occurs between resonance frequency fr and antiresonance frequency fa.
摘要翻译：本发明的压电谐振器被构造成使得在其中形成有空腔4的基板5上形成下电极3，压电体1，杂散分量控制层16和上电极2，从而自下而上。杂散分量控制层16是用于控制寄生频率的层，例如由金属材料，电介质材料或压电材料构成。通过附加地提供寄生分量控制层16，可以使由于不期望的变化引起的寄生频率的变化变得大于压电谐振器的主谐振的谐振频率的变化。因此，可以实现在谐振频率fr和反谐振频率fa之间不产生杂散分量的导纳频率响应的压电谐振器。

54. 发明申请

US20100156554A1 ANTENNA DUPLEXER, AND RF MODULE AND COMMUNICATION APPARATUS USING THE SAME 审中-公开
标题翻译：天线双工器，以及RF模块和通信设备
公开(公告)号：US20100156554A1
公开(公告)日：2010-06-24
申请号：US12717464
申请日：2010-03-04
申请人： Hiroyuki Nakamura , Keiji Onishi , Tomohiro Iwasaki
发明人： Hiroyuki Nakamura , Keiji Onishi , Tomohiro Iwasaki
IPC分类号： H03H9/00
CPC分类号： H03H9/706 , H03H9/0038 , H03H9/0042 , H03H9/0576 , H03H9/14588 , H03H9/72 , H03H9/725
摘要： One of plurality of transmission terminals connected to a transmission filter and a receiving terminal connected to a receiving filter is a balanced type terminal, and another is an unbalanced type terminal. The transmission filter and the receiving filter includes surface acoustic wave resonators or film bulk acoustic resonators. The balanced type terminal is connected to a longitudinal mode coupled surface acoustic wave filter.
摘要翻译：连接到发送滤波器的多个发送终端中的一个和连接到接收滤波器的接收终端是平衡型终端，另一个是不平衡型终端。传输滤波器和接收滤波器包括表面声波谐振器或薄膜体声共振器。平衡型端子连接到纵模耦合表面声波滤波器。

55. 发明授权

US07719390B2 Dual mode piezoelectric filter, method of manufacturing the same, high frequency circuit component and communication device using the same 有权
标题翻译：双模式压电滤波器，其制造方法，高频电路元件及使用其的通信装置
公开(公告)号：US07719390B2
公开(公告)日：2010-05-18
申请号：US12019330
申请日：2008-01-24
申请人： Tomohiro Iwasaki , Hiroshi Nakatsuka , Keiji Onishi , Takehiko Yamakawa , Tomohide Kamiyama
发明人： Tomohiro Iwasaki , Hiroshi Nakatsuka , Keiji Onishi , Takehiko Yamakawa , Tomohide Kamiyama
IPC分类号： H03H9/54 , H03H9/205 , H03H9/70 , H03H3/02
CPC分类号： H03H9/564 , H03H3/04 , H03H9/0207 , H03H2003/0428 , Y10T29/42
摘要： A dual mode piezoelectric filter includes a piezoelectric material layer composed of a piezoelectric thin film of the high-cut type formed on a substrate, a first electrode and a second electrode formed on one of the major surfaces of the piezoelectric material layer with a gap provided therebetween, a third electrode formed on the other major surface of the piezoelectric material layer opposite to the first electrode, the second electrode, and the gap, and an interelectrode mass load element formed in the gap or at a position opposite to the gap on a surface of the piezoelectric material layer. The relationships (ρ1×h1)≦(ρa×ha) and (ρ2×h2)≦(ρa×ha) are satisfied, where h1 is the thickness and ρ1 is the density of the first electrode, h2 is the thickness and ρ2 is the density of the second electrode, and ha is the thickness and ρa is the density of the interelectrode mass load element. A filter characteristic with a smooth passband and low losses is obtained.
摘要翻译：双模式压电滤波器包括由形成在基板上的高切割类型的压电薄膜构成的压电材料层，第一电极和形成在压电材料层的一个主表面上的间隔设置的第二电极其间形成在压电材料层的与第一电极，第二电极和间隙相反的另一个主表面上的第三电极，以及形成在间隙中或与间隙相对的位置处的电极间质量负载元件压电材料层的表面。满足关系（＆rgr; 1×h1）＆nlE;（＆rgr; a×ha）和（＆rgr; 2×h2）＆nlE;（＆rgr; a×ha），其中h1是厚度，＆rgr; 1是密度的第一个电极，h2是厚度，＆rgr; 2是第二个电极的密度，ha是厚度，而a是电极间质量负载元件的密度。获得具有平滑通带和低损耗的滤波器特性。

56. 发明申请

US20100052476A1 PIEZOELECTRIC FILTER AND METHOD FOR MANUFACTURING THE SAME 失效
标题翻译：压电过滤器及其制造方法
公开(公告)号：US20100052476A1
公开(公告)日：2010-03-04
申请号：US12523798
申请日：2008-11-19
申请人： Tomohiro Iwasaki , Hiroshi Nakatsuka , Keiji Onishi
发明人： Tomohiro Iwasaki , Hiroshi Nakatsuka , Keiji Onishi
IPC分类号： H01L41/04 , H01L41/22 , H01Q1/50
CPC分类号： H03H3/04 , H03H9/02086 , H03H9/0519 , H03H9/13 , H03H9/131 , H03H9/56 , H03H9/564 , H03H2003/0428 , Y10T29/42
摘要： A piezoelectric filter of the present invention is provided with first and second piezoelectric vibrators, each having a substrate, a lower load film formed on the substrate, a lower electrode formed on the lower load film, a piezoelectric element formed on the lower electrode, an upper electrode formed on the piezoelectric element and an upper load film formed on the upper electrode, and the piezoelectric filter is configured by electrically connecting the first and second piezoelectric vibrators to each other, and the piezoelectric element of the first piezoelectric vibrator and the piezoelectric element of the second piezoelectric vibrator correspond to respectively different areas of the same piezoelectric element; thus, the resonance frequencies of the first and second piezoelectric vibrators are adjusted by the respective lower load films and upper load films of the first piezoelectric vibrator and the second piezoelectric vibrator so that the resonance frequencies of the first and second piezoelectric vibrators are made different from each other.
摘要翻译：本发明的压电滤波器设置有第一和第二压电振动器，每个具有基板，形成在基板上的下载荷膜，形成在下载荷膜上的下电极，形成在下电极上的压电元件，形成在压电元件上的上电极和形成在上电极上的上载荷膜，并且压电滤波器通过将第一和第二压电振动器彼此电连接而构成，并且第一压电振动器的压电元件和压电元件的第二压电振子分别对应于同一压电元件的不同区域; 因此，第一和第二压电振动器的谐振频率由第一压电振动器和第二压电振动器的相应的下负载薄膜和上载荷薄膜调节，使得第一和第二压电振动器的谐振频率不同于彼此。

57. 发明授权

US07531943B2 Acoustic resonator and filter 失效
标题翻译：声谐振器和滤波器
公开(公告)号：US07531943B2
公开(公告)日：2009-05-12
申请号：US11092722
申请日：2005-03-30
申请人： Hiroshi Nakatsuka , Keiji Onishi , Hiroyuki Nakamura , Tomohiro Iwasaki
发明人： Hiroshi Nakatsuka , Keiji Onishi , Hiroyuki Nakamura , Tomohiro Iwasaki
IPC分类号： H01L41/08
CPC分类号： H03H9/02157 , H03H9/02149 , H03H9/174 , H03H9/585 , H03H9/588
摘要： The area of an opening C of a cavity is equal to or greater than the area of a horizontal cross section D of a vibrating section. The vibrating section is placed on a support section at a position such that a vertical projection of the vibrating section onto a substrate is accommodated within the opening C of the cavity. Moreover, the sum of a vertical thickness t1 of the vibrating section and a vertical thickness t2 of the support section is equal to one wavelength of a resonance frequency fr of an acoustic resonator (one wavelength=t1+t2), while the thickness t1 of the vibrating section and the thickness t2 of the support section are different from each other (t1≠t2). Thus, neither the thickness t1 of the vibrating section nor the thickness t2 of the support section is equal to the half wavelength of the resonance frequency fr.
摘要翻译：空腔的开口C的面积等于或大于振动部分的水平横截面D的面积。振动部分放置在支撑部分上，使得振动部分在基底上的垂直突起容纳在腔体的开口C内。此外，振动部的垂直厚度t1和支撑部的垂直厚度t2的和等于声谐振器的谐振频率fr的一个波长（一个波长= t1 + t2），而厚度t1 振动部分和支撑部分的厚度t2彼此不同（t1

58. 发明授权

US07408429B2 Coupled FBAR filter 失效
标题翻译：耦合FBAR滤波器
公开(公告)号：US07408429B2
公开(公告)日：2008-08-05
申请号：US11453064
申请日：2006-06-15
申请人： Tomohiro Iwasaki , Hiroshi Nakatsuka , Keiji Onishi , Hiroyuki Nakamura
发明人： Tomohiro Iwasaki , Hiroshi Nakatsuka , Keiji Onishi , Hiroyuki Nakamura
IPC分类号： H03H9/00
CPC分类号： H03H9/564 , H03H9/0207
摘要： A coupled FBAR filter 100 includes first and second input/output vibration portions 110 and 111 respectively including first and second lower electrodes 104 and 106, first and second upper electrodes 105 and 107, and a piezoelectric thin film 103 interposed therebetween; and a cavity 102 for commonly guaranteeing vibrations of the first and second input/output vibration portions 110 and 111 so as to couple the vibrations. The first and second input/output vibration portions 110 and 111 are located adjacently in contact with each other with a step therebetween, such that the first and second lower electrodes 104 and 106 are not electrically connected to each other and such that the first and second upper electrodes 105 and 107 are not electrically connected to each other. Insulators 108 and 109 are provided in the vicinity of the step.
摘要翻译：耦合的FBAR滤波器100包括分别包括第一和第二下部电极104和106的第一和第二输入/输出振动部分110和111，第一和第二上部电极105和107以及介于其间的压电薄膜103; 以及用于共同地保证第一和第二输入/输出振动部分110和111的振动以便耦合振动的空腔102。第一和第二输入/输出振动部分110和111彼此相邻地彼此接触地定位，使得第一和第二下部电极104和106彼此不电连接，并且使得第一和第二输入/输出振动部分110和111 上电极105和107彼此不电连接。绝缘体108和109设置在台阶附近。

59. 发明申请

US20070296523A1 Piezoelectric filter, antenna duplexer, and communications apparatus employing piezoelectric resonator 失效
标题翻译：压电滤波器，天线双工器以及采用压电谐振器的通信装置
公开(公告)号：US20070296523A1
公开(公告)日：2007-12-27
申请号：US11812013
申请日：2007-06-14
申请人： Takehiko Yamakawa , Tomohide Kamiyama , Tomohiro Iwasaki , Hiroshi Nakatsuka , Keiji Onishi
发明人： Takehiko Yamakawa , Tomohide Kamiyama , Tomohiro Iwasaki , Hiroshi Nakatsuka , Keiji Onishi
IPC分类号： H03H9/70 , H03H9/58
CPC分类号： H03H9/588 , H03H3/04 , H03H9/587 , H03H2003/023 , H03H2003/0414
摘要： A piezoelectric filter comprises a substrate and a plurality of piezoelectric resonators provided on the same substrate. Each piezoelectric resonator comprises a cavity formed in the substrate, a lower electrode formed on the substrate, covering the cavity, a piezoelectric material layer formed on the lower electrode, and an upper electrode formed on the piezoelectric material layer. At least one of the piezoelectric resonators has a cavity formed of a plurality of cells.
摘要翻译：压电滤波器包括基板和设置在同一基板上的多个压电谐振器。每个压电谐振器包括形成在基板中的空腔，形成在基板上的覆盖空腔的下电极，形成在下电极上的压电材料层和形成在压电材料层上的上电极。至少一个压电谐振器具有由多个单元形成的空腔。

60. 发明授权

US07301420B2 Piezoelectric resonator filter 有权
标题翻译：压电谐振滤波器
公开(公告)号：US07301420B2
公开(公告)日：2007-11-27
申请号：US10543837
申请日：2004-11-19
申请人： Hiroshi Yamaguchi , Takehiko Yamakawa , Hiroshi Nakatsuka , Hiroyuki Nakamura , Keiji Onishi
发明人： Hiroshi Yamaguchi , Takehiko Yamakawa , Hiroshi Nakatsuka , Hiroyuki Nakamura , Keiji Onishi
IPC分类号： H03H9/70 , H03H9/72 , H03H9/54 , H03H9/64
CPC分类号： H03H9/605 , H03H9/6483
摘要： A piezoelectric resonator filter for allowing a high-frequency signal in a desired frequency band to pass therethrough. The piezoelectric resonator filter presents a low insertion loss while securing satisfactory characteristics in a stop band. The piezoelectric resonator includes two or more reactance elements in serial connection between input and output terminals, at least three or more piezoelectric resonators in parallel connection between the input and output terminals, and an inductor having a grounded end. The reactive elements and resonators of the piezoelectric resonator are arranged in a ladder connection. Among the three or more piezoelectric resonators, only those piezoelectric resonators which do not adjoin each other are connected in common to the inductor.
摘要翻译：一种用于允许期望频带中的高频信号通过的压电谐振器滤波器。压电谐振器滤波器具有低插入损耗，同时在阻带中确保令人满意的特性。压电谐振器包括在输入和输出端子之间串联连接的两个或更多个电抗元件，在输入和输出端子之间并联连接的至少三个或更多个压电谐振器和具有接地端的电感器。压电谐振器的电抗元件和谐振器被布置在梯形连接中。在三个或更多个压电谐振器中，只有那些彼此不相邻的压电谐振器共同地连接到电感器。

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