Wave transmission lines and networks – Coupling networks – Electromechanical filter
Patent
1997-04-30
1999-05-04
Pascal, Robert
Wave transmission lines and networks
Coupling networks
Electromechanical filter
333189, 310321, 310348, 310359, 310366, 310367, H03H 910, H03H 9205
Patent
active
059007907
ABSTRACT:
A piezoelectric resonator has a base member formed by laminating a plurality of piezoelectric layers and electrodes. The base member is polarized in different directions at both sides of each electrode. Electrodes are alternately covered by a first insulating film and a second insulating film, respectively, at both sides of a groove formed in the base member. The first insulating film covers electrodes which are not covered by the second insulating film, and vice versa. External electrodes are formed at both sides of the groove on the base member and the internal electrodes are connected to the external electrodes. A support member made from an electrically conductive material is provided at the approximate centers of the external electrodes.
REFERENCES:
patent: 2157665 (1939-05-01), Hollmann
patent: 3185869 (1965-05-01), Shoor
patent: 3297889 (1967-01-01), Breskend
patent: 3401275 (1968-09-01), Curran et al.
patent: 3590287 (1971-06-01), Berlincourt et al.
patent: 4087716 (1978-05-01), Heywang
patent: 4360754 (1982-11-01), Toyoshima et al.
patent: 4398117 (1983-08-01), St. Cyr
patent: 4503352 (1985-03-01), Inoue
patent: 4532451 (1985-07-01), Inoue
patent: 4542315 (1985-09-01), Yamamoto et al.
patent: 4564782 (1986-01-01), Ogawa
patent: 4570098 (1986-02-01), Tomita et al.
patent: 4633120 (1986-12-01), Sato et al.
patent: 4642510 (1987-02-01), Yamashita
patent: 4656385 (1987-04-01), Tanaka
patent: 4752712 (1988-06-01), Tomita et al.
patent: 4759107 (1988-07-01), Ogawa et al.
patent: 4780639 (1988-10-01), Shirasu
patent: 4885498 (1989-12-01), Wakita
patent: 5045744 (1991-09-01), Ando et al.
patent: 5118982 (1992-06-01), Inoue et al.
patent: 5126618 (1992-06-01), Takahashi et al.
patent: 5153477 (1992-10-01), Jomura et al.
patent: 5225731 (1993-07-01), Owen
patent: 5233256 (1993-08-01), Hayashi et al.
patent: 5237239 (1993-08-01), Inoue et al.
patent: 5241236 (1993-08-01), Sasaki et al.
patent: 5250870 (1993-10-01), Fenlon et al.
patent: 5381067 (1995-01-01), Greenstein et al.
patent: 5438232 (1995-08-01), Inoue et al.
patent: 5446485 (1995-08-01), Usui
patent: 5517073 (1996-05-01), Ohkuma
patent: 5523645 (1996-06-01), Inoi
patent: 5525944 (1996-06-01), Oyama
patent: 5548179 (1996-08-01), Kaida
patent: 5565824 (1996-10-01), Nagano
patent: 5572082 (1996-11-01), Sokol
patent: 5585687 (1996-12-01), Wakabayashi et al.
patent: 5596243 (1997-01-01), Tsuru et al.
patent: 5596244 (1997-01-01), Kugou et al.
patent: 5696472 (1997-12-01), Kaida
patent: 5705880 (1998-01-01), Shimura et al.
patent: 5717365 (1998-02-01), Kaida et al.
Baba Toshiyuki
Inoue Jiro
Kusabiraki Shigemasa
Takeshima Tetsuo
Unami Toshihiko
Murata Manuafacturing Co., Ltd.
Pascal Robert
Summons Barbara
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