专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20050104203A1 Duplexer 失效
标题翻译：双工器
公开(公告)号：US20050104203A1
公开(公告)日：2005-05-19
申请号：US10886047
申请日：2004-07-08
申请人： Akio Hirakawa , Yoshiaki Fujita , Tomokazu Komazaki
发明人： Akio Hirakawa , Yoshiaki Fujita , Tomokazu Komazaki
IPC分类号： H03H9/72 , H01L25/16 , H03H9/25 , H01L23/34
CPC分类号： H01L25/165 , H01L2924/0002 , H01L2924/3011 , H01L2924/00
摘要： A filter chip lying on an upper surface of a top layer package substrate is connected to an upper surface ground electrode (235). The upper ground electrode (235) and a lower surface ground electrode (237) are connected to each other via through electrodes (261, 262, 263), ground wiring patterns (251, 252), first connecting lines (271 to 276), and second connecting lines (281, 282). The first connecting lines (271 to 276) are connected to the ground wiring patterns (251, 252), whereas the second connecting lines (281, 282) are not connected to the ground wiring patterns (251, 252), respectively. Owing to the provision of the connecting lines connected to the ground wiring patterns (251, 252) and the connecting lines unconnected to the ground wiring patterns (251, 252), the impedance between a multilayer package substrate and ground can be adjusted.
摘要翻译：位于顶层封装衬底的上表面上的滤波器芯片连接到上表面接地电极（235）。上接地电极（235）和下表面接地电极（237）经由电极（261,262,263），接地布线图案（251,252），第一连接线（271〜276），和第二连接线（281,282）。第一连接线（271〜276）连接到接地布线图案（251,252），而第二连接线（281,282）分别不连接到接地布线图案（251,252）。由于提供连接到接地布线图案（251,252）的连接线和未连接到接地布线图案（251,252）的连接线，可以调节多层封装基板和接地之间的阻抗。

32. 再颁专利

USRE37639E1 Surface-acoustic-wave filters with poles of attenuation created by impedance circuits 有权
标题翻译：具有由阻抗电路产生的衰减极性的表面声波滤波器
公开(公告)号：USRE37639E1
公开(公告)日：2002-04-09
申请号：US09484282
申请日：2000-01-18
申请人： Hisanori Ehara , Kazushige Noguchi , Hajime Shimamura , Yoshio Okada , Tomokazu Komazaki
发明人： Hisanori Ehara , Kazushige Noguchi , Hajime Shimamura , Yoshio Okada , Tomokazu Komazaki
IPC分类号： H03H964
CPC分类号： H03H9/725 , H03H7/0115 , H03H7/1708 , H03H7/1725 , H03H7/175 , H03H7/1758 , H03H7/1766 , H03H7/1775 , H03H7/1783 , H03H7/1791 , H03H7/38 , H03H9/0576 , H03H9/6483 , H03H9/72
摘要： A surface-acoustic-wave filter couples a two-port surface-acoustic-wave resonator filter circuit coupled in parallel or in series with a two-port impedance circuit. The two-port impedance circuit has an impedance that creates a pole of attenuation, by making the open-circuit impedance of the surface-acoustic-wave filter equal to the short-circuit impedance. High attenuation over a wide range of stopband frequencies is obtained in this way, combined with steep roll-off between the passband and stopband.
摘要翻译：表面声波滤波器耦合并联或与双端口阻抗电路串联耦合的双端口表面声波谐振器滤波器电路。双端口阻抗电路具有通过使表面声波滤波器的开路阻抗等于短路阻抗而产生衰减极点的阻抗。以这种方式获得宽范围的阻带频率的高衰减，并结合通带和阻带之间的急剧下降。

33. 发明授权

US4768003A Microwave filter 失效
标题翻译：微波滤波器
公开(公告)号：US4768003A
公开(公告)日：1988-08-30
申请号：US74640
申请日：1987-07-17
申请人： Izumi Kawakami , Tomokazu Komazaki , Katuhiko Gunzi , Norio Onisi
发明人： Izumi Kawakami , Tomokazu Komazaki , Katuhiko Gunzi , Norio Onisi
IPC分类号： H01P1/205 , H01P1/202 , H01P1/208 , H01P7/04
CPC分类号： H01P1/2056
摘要： A microwave filter comprising a rectangular ceramics block (30) having a plurality of elongated parallel holes (31-36) extending from the top surface to the bottom surface thereof. The holes are plated with conductive layers (37, 38), and flat conductive areas (39-44) coupled with the layers (37, 38) spatially disposed on the top surface of the dielectric block (30) surround opening ends of the holes (31-36). An input terminal and an output terminal are provided adjacent to the conductive areas (39, 44) at both the extreme sides of the dielectric block (30).
摘要翻译：一种微波过滤器，包括具有从顶表面延伸到底表面的多个细长平行孔（31-36）的矩形陶瓷块（30）。这些孔镀有导电层（37,38），并且与空间设置在介质块（30）的顶表面上的层（37,38）耦合的平坦导电区域（39-44）围绕孔的开口端（31-36）。输入端子和输出端子在介质块（30）的两侧的两个导电区域（39,44）附近设置。

34. 再颁专利

USRE43958E1 Surface acoustic wave filter and saw filter package 有权
标题翻译：表面声波滤波器和锯式过滤器封装
公开(公告)号：USRE43958E1
公开(公告)日：2013-02-05
申请号：US11328497
申请日：2006-01-10
申请人： Tomokazu Komazaki
发明人： Kazushige Noguchi , Satoshi Terada , Tomokazu Komazaki , Yoshikazu Kihara , Yoshiaki Fujita
IPC分类号： H03H9/64
CPC分类号： H03H9/6483
摘要： A polar SAW (Surface Acoustic Wave) filter includes a band-pass ladder type SAW filter having a SAW resonator. A two-terminal pair circuit is serially connected to the band-pass ladder type SAW filter and includes a plurality of inductors. The polar SAW filter has attenuation poles in each of the higher-frequency and lower-frequency attenuation ranges of a pass band.
摘要翻译：极性SAW（表面声波）滤波器包括具有SAW谐振器的带通梯形SAW滤波器。两端对电路串联连接到带通梯型SAW滤波器，并包括多个电感器。极化SAW滤波器在通带的高频和低频衰减范围的每一个中具有衰减极点。

35. 发明授权

US07602263B2 Branching filter package 失效
公开(公告)号：US07602263B2
公开(公告)日：2009-10-13
申请号：US11978671
申请日：2007-10-30
申请人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
发明人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
IPC分类号： H03H9/72
CPC分类号： H03H7/38 , H03H9/0576 , H03H9/72 , H03H9/725 , Y10T29/42
摘要： A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.

36. 发明授权

US07479845B2 Branching filter package 有权
公开(公告)号：US07479845B2
公开(公告)日：2009-01-20
申请号：US11032145
申请日：2005-01-11
申请人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
发明人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
IPC分类号： H03H9/72
CPC分类号： H03H7/38 , H03H9/0576 , H03H9/72 , H03H9/725 , Y10T29/42
摘要： A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.

37. 发明授权

US07420440B2 Transmitting filter including SAW resonators 有权
标题翻译：发射滤波器包括SAW谐振器
公开(公告)号：US07420440B2
公开(公告)日：2008-09-02
申请号：US10983788
申请日：2004-11-09
申请人： Kenichi Anasako , Yoshiaki Fujita , Hisanori Ehara , Tomokazu Komazaki
发明人： Kenichi Anasako , Yoshiaki Fujita , Hisanori Ehara , Tomokazu Komazaki
IPC分类号： H03H9/64 , H03H9/72
CPC分类号： H03H9/6483 , B05D1/60 , B05D3/061 , C23C16/45504 , C23C16/45591 , C23C16/482
摘要： A surface acoustic wave filter includes an antenna terminal, a transmitting filter and a variable branching line both of which are coupled to the antenna terminal and a receiving filter coupled to the variable branching line. The transmitting filter has a first end series-arm SAW resonator, a second end series-arm SAW resonator, a middle series-arm SAW resonator coupled between the first and second end series-arm SAW resonators and parallel-arm SAW resonators. Each of the first and second end series-arm SAW resonator has a first resonance frequency. The middle series-arm SAW resonator has a second resonance frequency that is higher than the first resonance frequency.
摘要翻译：表面声波滤波器包括天线端子，发射滤波器和可变分支线，两者都耦合到天线端子和耦合到可变分支线的接收滤波器。发射滤波器具有第一端串联臂SAW谐振器，第二端串联臂SAW谐振器，耦合在第一和第二端串联SAW谐振器和并联SAW谐振器之间的中间串联SAW谐振器。第一和第二端串联SAW谐振器中的每一个具有第一谐振频率。中间串联SAW谐振器具有高于第一谐振频率的第二谐振频率。

38. 发明申请

US20050190015A1 Saw filter circuit 有权
标题翻译：锯片滤波电路
公开(公告)号：US20050190015A1
公开(公告)日：2005-09-01
申请号：US11066300
申请日：2005-02-28
申请人： Tomokazu Komazaki
发明人： Tomokazu Komazaki
IPC分类号： H03H9/25 , H03H9/64
CPC分类号： H03H9/6483
摘要： A SAW filter circuit has: a first circuit having first to fourth connecting points, a first SAW resonator electrically connected to the first and second connecting points, second SAW resonator electrically connected to the first and third connecting points, and third SAW resonator electrically connected to the second and fourth connecting points; and a second circuit made of a fifth connecting point electrically connected to the third connecting point, a sixth connecting point electrically connected to the fourth connecting point, seventh and eighth connecting points being electrically short-circuited, a first passive element electrically connected to the fifth and sixth connecting points, a second passive element electrically connected to the fifth and seventh connecting points, and a third passive element electrically connected to the sixth and eighth connecting points. Each passive elements is an inductor or capacitor, and at least one of the first to third passive elements is a capacitor.
摘要翻译： SAW滤波器电路具有：具有第一至第四连接点的第一电路，与第一和第二连接点电连接的第一SAW谐振器，电连接到第一和第三连接点的第二SAW谐振器和电连接到第二和第四连接点; 以及由与第三连接点电连接的第五连接点构成的第二电路，电连接到第四连接点的第六连接点，第七和第八连接点电短路，第一无源元件电连接到第五连接点和第六连接点，电连接到第五和第七连接点的第二无源元件，以及电连接到第六和第八连接点的第三无源元件。每个无源元件是电感器或电容器，并且第一到第三无源元件中的至少一个是电容器。

39. 发明授权

US06911878B2 Acoustic wave branching filter having transmitting filter with optimal power handling 有权
标题翻译：具有发射滤波器的声波分波器具有最佳的功率处理能力
公开(公告)号：US06911878B2
公开(公告)日：2005-06-28
申请号：US10273887
申请日：2002-10-21
申请人： Kenichi Anasako , Yoshiaki Fujita , Hisanori Ehara , Tomokazu Komazaki
发明人： Kenichi Anasako , Yoshiaki Fujita , Hisanori Ehara , Tomokazu Komazaki
IPC分类号： H03H9/72 , B05D3/06 , B05D7/24 , C23C16/44 , C23C16/455 , C23C16/48 , H03H9/64 , H03M9/64 , H03M9/72
CPC分类号： H03H9/6483 , B05D1/60 , B05D3/061 , C23C16/45504 , C23C16/45591 , C23C16/482
摘要： A surface acoustic wave filter includes an antenna terminal, a transmitting filter and a variable branching line both of which are coupled to the antenna terminal and a receiving filter coupled to the variable branching line. The transmitting filter has a first end series-arm SAW resonator, a second end series-arm SAW resonator, a middle series-arm SAW resonator coupled between the first and second end series-arm SAW resonators and parallel-arm SAW resonators. Each of the first and second end series-arm SAW resonator has a first resonance frequency. The middle series-arm SAW resonator has a second resonance frequency that is higher than the first resonance frequency.
摘要翻译：表面声波滤波器包括天线端子，发射滤波器和可变分支线，两者都耦合到天线端子和耦合到可变分支线的接收滤波器。发射滤波器具有第一端串联臂SAW谐振器，第二端串联臂SAW谐振器，耦合在第一和第二端串联SAW谐振器和并联SAW谐振器之间的中间串联SAW谐振器。第一和第二端串联SAW谐振器中的每一个具有第一谐振频率。中间串联SAW谐振器具有高于第一谐振频率的第二谐振频率。

40. 发明申请

US20050122187A1 Branching filter package 有权
公开(公告)号：US20050122187A1
公开(公告)日：2005-06-09
申请号：US11032145
申请日：2005-01-11
申请人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
发明人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
IPC分类号： H03H7/38 , H03H9/10 , H03H9/72
CPC分类号： H03H7/38 , H03H9/0576 , H03H9/72 , H03H9/725 , Y10T29/42
摘要： A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.

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