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1. 发明公开

EP1933457A4 ELASTIC WAVE FILTER DEVICE AND DUPLEXER 有权
标题翻译：弹性波滤波器装置和双面打印
公开(公告)号：EP1933457A4
公开(公告)日：2013-03-27
申请号：EP06810325
申请日：2006-09-20
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/145 , H03H9/00 , H03H9/02 , H03H9/64 , H03H9/72
CPC分类号： H03H9/14526 , H03H9/0071 , H03H9/0085 , H03H9/02748 , H03H9/14532 , H03H9/14576 , H03H9/14582 , H03H9/14585 , H03H9/6476 , H03H9/725

2. 发明公开

EP2034611A4 ELASTIC WAVE FILTER DEVICE AND DUPLEXER 审中-公开
标题翻译：弹性波滤波器装置和双工器
公开(公告)号：EP2034611A4
公开(公告)日：2010-08-04
申请号：EP07744141
申请日：2007-05-25
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/64 , H03H9/72
CPC分类号： H03H9/008 , H03H9/0071 , H03H9/0085 , H03H9/02748 , H03H9/725

3. 发明公开

EP2355348A4 ELASTIC WAVE FILTER DEVICE 有权转让
标题翻译：弹性波滤波器装置
公开(公告)号：EP2355348A4
公开(公告)日：2012-06-20
申请号：EP09828746
申请日：2009-07-29
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/64 , H01L41/09 , H01L41/18 , H03H9/00 , H03H9/145 , H03H9/25
CPC分类号： H03H9/0061 , H03H9/0071 , H03H9/0222 , H03H9/173 , H03H9/706 , H03H9/725
摘要： To provide an acoustic wave filter device that includes longitudinally-coupled-resonator acoustic wave filters having a balanced-unbalanced conversion function and that is capable of increasing the amount of attenuation in an attenuation band and capable of improving the isolation characteristics when the acoustic wave filter device is used as a reception filter of a duplexer, an acoustic wave filter device includes an unbalanced terminal (7); first and second balanced terminals (8 and 9); first and second longitudinally-coupled-resonator acoustic wave filters (11 and 12) that are connected between the unbalanced terminal (7) and the first balanced terminal (8) and between the unbalanced terminal (7) and the second balanced terminal (9), respectively; a first parallel resonator (13) connected between the first balanced terminal (8) and a ground potential; and a second parallel resonator (14) connected between the second balanced terminal (9) and the ground potential. The electrostatic capacitance of the first parallel resonator (13) is different from the electrostatic capacitance of the second parallel resonator (14). Among the first parallel resonator (13) and the second parallel resonator (14), the wavelength of the first parallel resonator (13) having a relatively small electrostatic capacitance is made shorter than the wavelength of the second parallel resonator (14) having a relatively large electrostatic capacitance.

4. 发明公开

EP2063530A4 SURFACE ACOUSTIC WAVE FILTER DEVICE AND DUPLEXER 有权
标题翻译：面波滤波器装置和双面打印
公开(公告)号：EP2063530A4
公开(公告)日：2012-01-25
申请号：EP07828519
申请日：2007-09-27
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/145 , H03H9/00 , H03H9/64 , H03H9/72
CPC分类号： H03H9/0061 , H03H9/0085 , H03H9/14588 , H03H9/6469 , H03H9/725

5. 发明公开

EP2226935A4 SURFACE ACOUSTIC WAVE DEVICE AND DUPLEXER 审中-公开
标题翻译：声表面波器件和双面打印
公开(公告)号：EP2226935A4
公开(公告)日：2013-08-21
申请号：EP08860490
申请日：2008-12-08
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/02 , H03H9/05 , H03H9/10 , H03H9/145 , H03H9/64 , H03H9/72
CPC分类号： H03H9/725 , H03H9/02637 , H03H9/059 , H03H9/1092 , H03H9/1452 , H03H9/14573 , H03H9/643

6. 发明公开

EP1734654A4 SURFACE ACOUSTIC WAVE FILTER AND MANUFACTURING METHOD THEREOF 审中-公开
标题翻译： OBERFLÄCHENWELLENFILTERUND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP1734654A4
公开(公告)日：2009-12-23
申请号：EP05728856
申请日：2005-04-04
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/25 , H03H3/08 , H03H9/10 , H03H9/64
CPC分类号： H03H9/059 , H01L2224/16225 , H01L2224/32225 , H01L2224/73204 , H03H9/1078 , H03H9/1085 , H01L2924/00

7. 发明公开

EP1826902A4 BALANCE TYPE ELASTIC SURFACE WAVE FILTER 有权
标题翻译：补偿型的弹性的表面滤波器
公开(公告)号：EP1826902A4
公开(公告)日：2008-01-23
申请号：EP05793732
申请日：2005-10-12
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/00 , H01L41/09 , H01L41/18 , H01L41/187 , H01L41/22 , H01L41/29 , H03H9/145 , H03H9/64
CPC分类号： H03H9/0038 , H03H9/0057 , H03H9/14588
摘要： A 5-IDT surface acoustic wave filter that has a balanced-unbalanced conversion function and that can efficiently reduce a spurious component in the vicinity of the passband is provided. A surface acoustic wave filter (1) includes first to fifth IDTs (11 to 15) disposed on a piezoelectric substrate (2) in a surface acoustic wave propagation direction. The second IDT (12) and the fourth IDT (14) have a phase difference of 180° with respect to each other. The second and fourth IDTs are connected to an unbalanced terminal. The third IDT includes a first sub-IDT portion (13a) and a second sub-IDT portion (13b). The first IDT (11) and the first sub-IDT portion (13a) are connected to a first balanced terminal (4), and the second sub-IDT portion (13b) and the fifth IDT (15) are connected to a second balanced terminal (5). The following conditions: 1.55 ‰ N3/N1 ‰ 2.58 and N1 = N5 are satisfied, where N1 denotes the number of electrode fingers that determines the center frequency of the first IDT (11), N3 denotes the number of electrode fingers that determines the center frequency of the third IDT (13), and N5 denotes the number of electrode fingers that determines the center frequency of the fifth IDT (15),

8. 发明公开

EP1729415A4 BALANCED SURFACE ACOUSTIC WAVE FILTER 有权
标题翻译：平衡表面滤波器
公开(公告)号：EP1729415A4
公开(公告)日：2011-09-07
申请号：EP05770560
申请日：2005-08-10
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/145 , H03H9/00 , H03H9/64
CPC分类号： H03H9/0071 , H03H9/0038 , H03H9/14582 , H03H9/14588 , H03H9/6436 , H03H9/6476

9. 发明公开

EP1791254A4 BALANCED SURFACE ACOUSTIC WAVE FILTER 有权
标题翻译：对称表面波滤波器
公开(公告)号：EP1791254A4
公开(公告)日：2011-07-20
申请号：EP05720257
申请日：2005-03-08
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/64 , H01L41/09 , H01L41/18 , H03H9/145
CPC分类号： H03H9/0061 , H03H9/0057 , H03H9/14582 , H03H9/14588 , H03H9/6473

10. 发明公开

EP2530837A4 SURFACE ACOUSTIC WAVE FILTER DEVICE 审中-公开
标题翻译：表面声波滤波器装置
公开(公告)号：EP2530837A4
公开(公告)日：2014-02-26
申请号：EP10844637
申请日：2010-07-20
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/05 , H03H9/64 , H03H9/72
CPC分类号： H03H9/725 , H03H9/0557 , H03H9/6483

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