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1. 发明授权

US5084647A Piezoelectric filter 失效
标题翻译：压电滤波器
公开(公告)号：US5084647A
公开(公告)日：1992-01-28
申请号：US555566
申请日：1990-07-19
申请人： Jiro Inoue , Masao Gamo , Hiroshi Nakatani
发明人： Jiro Inoue , Masao Gamo , Hiroshi Nakatani
IPC分类号： H03H9/02 , H03H9/56
CPC分类号： H03H9/178 , H03H9/0207 , H03H9/562
摘要： A piezoelectric filter of an energy-trapped type utilizing a second harmonic wave of the thickness-extensional vibration mode, characterized in that an earth electrode is formed around the center of a piezoelectric substrate in the direction of thickness, and an input electrode and an output electrode are formed on one or both major surfaces of the piezoelectric substrate so as to be opposed to the earth electrode.
摘要翻译：一种利用厚度 - 延伸振动模式的二次谐波的能量捕获型压电滤波器，其特征在于，在厚度方向上围绕压电基板的中心形成接地电极，并且输入电极和输出端电极形成在压电基板的一个或两个主表面上，以便与接地电极相对。

2. 发明授权

US5065066A Piezoelectric resonator 失效
标题翻译：压电谐振器
公开(公告)号：US5065066A
公开(公告)日：1991-11-12
申请号：US554783
申请日：1990-07-18
申请人： Hiroshi Nakatani , Masao Gamo
发明人： Hiroshi Nakatani , Masao Gamo
IPC分类号： H03H9/13 , H03H9/17
CPC分类号： H03H9/178
摘要： A piezoelectric resonator of an energy-trapped type utilizing a second harmonic wave of the thickness-extensional vibration mode, in which an inner electrode is formed in a position at a height around the center of a piezoelectric substrate in the direction of thickness, outer electrodes are formed on both major surfaces of the piezoelectric substrate so as to be opposed to the inner electrode through a piezoelectric substrate portion, and the dimension of at least one of the outer electrodes in the direction of the length of the inner electrode is made smaller than the dimension of the outer electrode in the direction of the width of the inner electrode.
摘要翻译：一种利用厚度 - 延伸振动模式的二次谐波的能量捕获型压电谐振器，其中内部电极形成在厚度方向上在压电基板的中心周围的高度的位置，外部电极形成在压电基板的两个主表面上，以通过压电基板部分与内部电极相对，并且将外部电极中的至少一个在内部电极的长度方向上的尺寸设定为小于外部电极在内部电极的宽度方向上的尺寸。

3. 发明授权

US5274293A Piezoelectric filter 失效
标题翻译：压电滤波器
公开(公告)号：US5274293A
公开(公告)日：1993-12-28
申请号：US780795
申请日：1991-10-22
申请人： Jiro Inoue , Masao Gamo , Hiroshi Nakatani
发明人： Jiro Inoue , Masao Gamo , Hiroshi Nakatani
IPC分类号： H03H9/02 , H03H9/56 , H01L41/08
CPC分类号： H03H9/178 , H03H9/0207 , H03H9/562
摘要： A piezoelectric filter of an energy-trapped type utilizing a second harmonic wave of the thickness-extensional vibration mode, characterized in that an earth electrode is formed around the center of a piezoelectric substrate in the direction of thickness, and an input electrode and an output electrode are formed on one or both major surfaces of the piezoelectric substrate so as to be opposed to the earth electrode.
摘要翻译：一种利用厚度 - 延伸振动模式的二次谐波的能量捕获型压电滤波器，其特征在于，在厚度方向上围绕压电基板的中心形成接地电极，并且输入电极和输出端电极形成在压电基板的一个或两个主表面上，以便与接地电极相对。

4. 发明授权

US06731187B2 Dual mode piezoelectric filter with a relay electrode on the casing substrate 有权
标题翻译：双模式压电滤波器，在外壳基板上带有继电器电极
公开(公告)号：US06731187B2
公开(公告)日：2004-05-04
申请号：US10092494
申请日：2002-03-08
申请人： Takahiro Kurihara , Masao Gamo , Yoshihiro Ikeda
发明人： Takahiro Kurihara , Masao Gamo , Yoshihiro Ikeda
IPC分类号： H03H954
CPC分类号： H03H9/1014 , H03H9/0514 , H03H9/0561 , H03H9/58
摘要： A dual mode filter includes a casing substrate on which an input electrode, an output electrode, two ground electrodes, and a relay electrode are provided, first and second filter elements mounted in parallel with each other on the casing substrate, and a cap fixed onto the casing substrate. The first and second filter elements each include a first terminal electrode, a second terminal electrode, a pair of segmented electrodes, a counter electrode, and a third terminal electrode. The first terminal electrode of the first filter element is connected to the input electrode, and the third terminal electrode is connected to one ground electrode. The first terminal electrode of the second filter element is connected to the output electrode, and the third terminal electrode is connected to the other ground electrode. The second terminal electrodes of the first and second filter elements are connected to the relay electrode.
摘要翻译：双模式滤波器包括其上设置有输入电极，输出电极，两个接地电极和中继电极的壳体基板，在壳体基板上彼此平行安装的第一和第二过滤元件，以及固定到套管衬底。第一和第二滤波器元件各自包括第一端子电极，第二端子电极，一对分段电极，对电极和第三端子电极。第一滤波器元件的第一端子电极连接到输入电极，并且第三端子电极连接到一个接地电极。第二滤波器元件的第一端子电极连接到输出电极，第三端子电极连接到另一个接地电极。第一和第二滤波器元件的第二端子电极连接到继电器电极。

5. 发明授权

US06636130B2 Piezoelectric filter with different ratios of unpolarized vibration area to total vibration area in two filter elements 有权
标题翻译：压电式滤波器具有不同比例的非极化振动面积与两个滤波器元件中的总振动面积
公开(公告)号：US06636130B2
公开(公告)日：2003-10-21
申请号：US10077785
申请日：2002-02-20
申请人： Masao Gamo
发明人： Masao Gamo
IPC分类号： H03H958
CPC分类号： H03H9/0542 , H03H9/1035 , H03H9/58
摘要： A piezoelectric filter includes first and second dual-mode filter elements connected in a face-to-face arrangement. The first and second filter elements have substantially the same center frequency. Each of the first and second filter elements has a piezoelectric substrate, which has unpolarized sections located at edges thereof. Portions of a vibration region where energy-trapped vibration of each of the first and second filter elements is generated are located in the unpolarized sections. The ratio of the area of the portions of the vibration region which are located in the unpolarized sections of the first filter element to the area of the entire vibration region of the first filter element is different from the ratio of the area of the portions of the vibration region which are located in the unpolarized sections of the second filter element to the area of the entire vibration region of the second filter element.
摘要翻译：压电滤波器包括以面对面布置连接的第一和第二双模滤波器元件。第一和第二滤波器元件具有基本上相同的中心频率。第一和第二滤波器元件中的每一个具有压电基板，其具有位于其边缘处的非偏振部分。产生第一和第二过滤元件中的每一个的能量捕获振动的振动区域的部分位于非偏振部分中。位于第一过滤元件的非偏振部分的振动区域的部分的面积与第一过滤元件的整个振动区域的面积的比率与第一过滤元件的部分的面积的比率不同振动区域位于第二过滤器元件的非偏振部分到第二过滤器元件的整个振动区域的区域。

6. 发明授权

US06373168B1 Balanced input-output piezoelectric filter 有权
标题翻译：平衡输入输出压电滤波器
公开(公告)号：US06373168B1
公开(公告)日：2002-04-16
申请号：US09627768
申请日：2000-07-28
申请人： Masao Gamo
发明人： Masao Gamo
IPC分类号： H03H913
CPC分类号： H03H9/562 , H03H9/0095 , H03H9/542 , H03H9/585
摘要： A balanced input-output piezoelectric filter includes a piezoelectric ceramic substrate provided therein with a ground electrode. Input electrodes and output electrodes are located on both major surfaces of the piezoelectric ceramic substrate so as to be adjacent to each other. The input electrodes function as a balanced-circuit connecting electrode and are connected to balanced input terminals. The output electrodes function as a balanced-circuit connecting electrode and are connected to balanced output terminals.
摘要翻译：平衡输入输出压电滤波器包括其中设置有接地电极的压电陶瓷基板。输入电极和输出电极位于压电陶瓷基板的两个主表面上以彼此相邻。输入电极用作平衡电路连接电极，并连接到平衡输入端子。输出电极用作平衡电路连接电极，并连接到平衡输出端子。

7. 发明授权

US06274969B1 Chip piezoelectric filter 有权
标题翻译：片式压电滤波器
公开(公告)号：US06274969B1
公开(公告)日：2001-08-14
申请号：US09627774
申请日：2000-07-28
申请人： Masao Gamo
发明人： Masao Gamo
IPC分类号： H03H954
CPC分类号： H03H9/58 , H03H9/0561 , H03H9/1035
摘要： A chip piezoelectric filter has a plurality of energy-trap piezoelectric filters and effectively minimizes unnecessary spurious components in areas other than passbands. In the chip piezoelectric filter, first and second piezoelectric substrates on which first and second energy-trap piezoelectric filter sections are provided, respectively, are stacked on each other and separated from each other via a spacer. Also, first and second housing substrates are individually stacked on upper and lower portions of the first and second piezoelectric substrates. A first cavity is provided in the spacer to prevent interference of vibrations of the first and second piezoelectric substrates. The area of the first cavity is larger than the area of each of second and third cavities individually formed on outer surfaces of the first and second piezoelectric substrates.
摘要翻译：芯片压电滤波器具有多个能量陷波压电滤波器，并且有效地使通过频带以外的区域中的不必要杂散分量最小化。在芯片压电滤波器中，分别设置有第一和第二能量陷波压电滤波器部分的第一和第二压电基板彼此堆叠并且通过间隔件彼此分离。此外，第一和第二壳体基板分别堆叠在第一和第二压电基板的上部和下部。第一空腔设置在间隔件中，以防止第一和第二压电基片振动的干扰。第一空腔的面积大于在第一和第二压电基板的外表面上分别形成的第二和第三空腔的面积。

8. 发明授权

US6011451A Chip type piezoelectric filter having internal common electrodes or a shield electrode 失效
标题翻译：具有内部公共电极或屏蔽电极的片式压电滤波器
公开(公告)号：US6011451A
公开(公告)日：2000-01-04
申请号：US50546
申请日：1998-03-30
申请人： Masao Gamo
发明人： Masao Gamo
IPC分类号： H03H9/17 , H03H9/05 , H03H9/10 , H03H9/54 , H03H9/56 , H03H9/58
CPC分类号： H03H9/1035 , H03H9/0561 , H03H9/581
摘要： A chip type filter reduces a required mount space while facilitating achievement of impedance matching and also enhancing the stability of filter characteristics. The chip type filter includes a first piezoelectric substrate, a filter section with resonance electrodes, a common electrode and a coupling capacitance section, a second piezoelectric substrate, a second filter section with a pair of resonance electrodes, a common electrode opposing the electrodes in a "top/bottom-surface overlap" relationship and a coupling capacitance section. The filter is arranged such that the first and second piezoelectric substrates are adhered to each other with an adhesive layer located therebetween.
摘要翻译：芯片型滤波器减少了所需的安装空间，同时有助于实现阻抗匹配，并且还提高滤波器特性的稳定性。芯片型滤波器包括：第一压电基板，具有谐振电极的滤波器部分，公共电极和耦合电容部分;第二压电基板;具有一对谐振电极的第二滤波器部分;与 “顶/底表面重叠”关系和耦合电容部分。滤波器被布置成使得第一和第二压电基板彼此粘合，其间具有粘合剂层。

9. 发明授权

US5844348A Piezoelectric resonant part and method of manufacturing the same 失效
公开(公告)号：US5844348A
公开(公告)日：1998-12-01
申请号：US661001
申请日：1996-06-10
申请人： Masao Gamo
发明人： Masao Gamo
IPC分类号： H03H9/17 , H03H3/02 , H03H9/10 , H03H9/56 , H03H9/58 , H01L41/08
CPC分类号： H03H9/1035 , H03H9/562 , Y10T29/42
摘要： A piezoelectric resonant part includes a piezoelectric substrate having first and second opposed main surfaces, electrode patterns formed on the main surfaces; and protective substrates bonded to respective ones of the main surfaces of the piezoelectric substrate via adhesive layers to form a laminate. Each of the adhesive layers comprising a first layer made of a soft adhesive whose Shore hardness is less than D60 and a second layer made of a hard adhesive whose Shore hardness is more than D60. External electrodes are formed on exposed surfaces of the piezoelectric resonant part. Only the second adhesive layers are exposed in the areas where the external electrodes are located such that the external electrodes do not contact the relatively soft first adhesive layers. The piezoelectric resonant part is made by forming a respective first adhesive layer on a main surface of each of the protective substrates and then forming a respective second adhesive layer on each of the first layers. The protective substrates are then laminated onto respective main surfaces of the piezoelectric substrate with the second layers abutting the main surfaces of the piezoelectric substrate.

10. 发明授权

US06466106B1 Piezoelectric filter device with a ground electrode that is not centered in the thickness direction of the filter 失效
标题翻译：具有接地电极的压电滤波器装置，其不位于过滤器的厚度方向上的中心
公开(公告)号：US06466106B1
公开(公告)日：2002-10-15
申请号：US09656105
申请日：2000-09-06
申请人： Masao Gamo
发明人： Masao Gamo
IPC分类号： H03H958
CPC分类号： H03H9/178 , H03H9/60
摘要： A first piezoelectric filter and a second piezoelectric filter are electrically connected to each other with a relay capacitor interposed therebetween. When the thicknesses of the piezoelectric substrate plates of the first and second piezoelectric filters are T1 and T2, respectively, and when the distances between the first main surfaces of the first and second piezoelectric filters and their corresponding adjacent ground electrodes are respectively ta1 and ta2, and when the distances between the second main surfaces of the first and second piezoelectric filters and their corresponding adjacent ground electrodes are respectively tb1 and tb2, the following relationships are satisfied: tb1−ta1 is 0 to 0.1 T1, tb2−ta2 is 0 to 0.1 T2, alternatively, tb1−ta1 is −0.1 T1 to 0, tb2−ta2 is 0.1 T2 to 0.
摘要翻译：第一压电滤波器和第二压电滤波器之间通过中继电容器彼此电连接。当第一和第二压电滤波器的压电基板的厚度分别为T1和T2时，当第一和第二压电滤波器的第一主表面与它们相应的相邻接地电极之间的距离分别为ta1和ta2时，并且当第一和第二压电滤波器的第二主表面与其相应的相邻接地电极之间的距离分别为tb1和tb2时，满足以下关系：tb1-ta1为0至0.1T1，tb2-ta2为0至0.1 T2，或者，tb1-ta1为-0.1T1至0，tb2-ta2为0.1T2至0。

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