Metal working – Piezoelectric device making
Reexamination Certificate
2005-09-07
2010-06-01
Tugbang, A. Dexter (Department: 3729)
Metal working
Piezoelectric device making
C029S407050, C029S407070, C310S311000
Reexamination Certificate
active
07725995
ABSTRACT:
Common internal electrodes27and segment internal electrodes28are laminated alternately with a piezoelectric material29between and a common external electrode30and a segment external electrode31are provided on the surface, forming a drive vibrator24. A free end part24aof the drive vibrator24is formed with an active region L and can be expanded and contracted in the length direction of the vibrator. A piezoelectric material29of the outermost layer in the free end part24acan be operated based on the potential difference between the external and internal electrodes and a portion of the active region L in the external electrode is used as a trimming portion with an effective length x varied by trimming.
REFERENCES:
patent: 4518889 (1985-05-01), 'T Hoen
patent: 5475278 (1995-12-01), Inagawa et al.
patent: 5548314 (1996-08-01), Okazawa et al.
patent: 5548894 (1996-08-01), Muto
patent: 5818482 (1998-10-01), Ohta et al.
patent: 5923352 (1999-07-01), Kikuchi et al.
patent: 5930895 (1999-08-01), Orikasa et al.
patent: 6053596 (2000-04-01), Nakano et al.
patent: 6078124 (2000-06-01), Furuhashi et al.
patent: 6149264 (2000-11-01), Hirabayashi et al.
patent: 6164772 (2000-12-01), Koitabashi et al.
patent: 6273558 (2001-08-01), Kitahara
patent: 6338545 (2002-01-01), Sekiya
patent: 6523942 (2003-02-01), Sakamoto et al.
patent: 0 901 172 (1999-03-01), None
patent: 6-312505 (1994-11-01), None
patent: 7-178902 (1995-07-01), None
patent: 9-300636 (1997-11-01), None
patent: 6-91867 (1998-04-01), None
patent: 10-193601 (1998-07-01), None
patent: 10-226080 (1998-08-01), None
patent: 10-278262 (1998-10-01), None
patent: 11-70650 (1999-03-01), None
patent: 11-138812 (1999-05-01), None
patent: 11342610 (1999-12-01), None
patent: 2 092 934 (1997-10-01), None
Angwin David P
Seiko Epson Corporation
Sughrue & Mion, PLLC
Tugbang A. Dexter
LandOfFree
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