Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electrostrictive – magnetostrictive – or piezoelectric
Reexamination Certificate
2006-03-28
2006-03-28
Le, Huyen (Department: 2643)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electrostrictive, magnetostrictive, or piezoelectric
C381S162000, C381S386000, C381S173000, C381S433000, C310S322000, C310S348000
Reexamination Certificate
active
07020295
ABSTRACT:
A piezoelectric electroacoustic transducer includes a substantially rectangular piezoelectric diaphragm having electrodes and flexurally vibrating in response to application of an alternating signal between the electrodes, a resin case having a supporting member disposed inside sidewalls of the case for supporting the diaphragm, terminals insert-molded in the case so as to have internal connections exposed in the supporting member and external connections exposed on the external surface of the case, a conductive adhesive for electrically connecting the electrodes of the diaphragm to the internal connections of the terminals, an elastic sealant for sealing a gap between the external periphery of the diaphragm and the internal periphery of the case, and a lid plate for closing an opening of the case. The terminals are pressed terminals, which are made by punching a metallic plate so that a flash-producing surface is to be the lower surface, and flashes on both respective side-edges of the internal connections are embedded inside the supporting member of the case so that the top surfaces of the internal connections are flush with the surface of the supporting member, and the external connections of the terminals are bent toward the bottom surface of the case via the side surfaces thereof.
REFERENCES:
patent: 5770915 (1998-06-01), Sumita et al.
patent: 6445108 (2002-09-01), Takeshima et al.
patent: 6570299 (2003-05-01), Takeshima et al.
patent: 6587567 (2003-07-01), Yamamoto
patent: 2001/0004180 (2001-06-01), Kishimoto
patent: 100 07 455 (2000-09-01), None
patent: 2-148815 (1990-06-01), None
patent: 6-342864 (1994-12-01), None
patent: 2000-310990 (2000-11-01), None
patent: 2000-312398 (2000-11-01), None
patent: 2001-95094 (2001-04-01), None
patent: 2001-0062423 (2001-07-01), None
English translation of the Notice of Submission of Argument Issued in a Korean Application Number 10-2002-0038557 and dated Feb. 24, 2005.
Fujino Masayuki
Hamada Kazuaki
Keating & Bennett LLP
Le Huyen
Murata Manufacturing Co. Ltd.
Nguyen Tuan D.
LandOfFree
Piezoelectric electroacoustic transducer and manufacturing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Piezoelectric electroacoustic transducer and manufacturing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric electroacoustic transducer and manufacturing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3564247