Piezoelectric devices

Details Piezoelectric devices Piezoelectric devices

2006-03-21

2006-03-21

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07015625

ABSTRACT:
A device comprising a layer of piezoelectric material and a layer of ferroelectric material clamped together such that a voltage applied to one layer results in a voltage being generated across the other layer. Examples are given of the implementation of analogue components such as an amplifier, a transformer, an inverter and a comparator. For the comparator, the device has a third layer of material clamped together with the other two layers, the third layer being a ferroelectric material.

REFERENCES:
patent: 2347098 (1944-04-01), Green
patent: 2551848 (1951-05-01), Parker
patent: 2636135 (1953-05-01), Peek, Jr.
patent: 2834943 (1958-05-01), Grisdale
patent: 2945192 (1960-07-01), Szymanski
patent: 3683211 (1972-08-01), Perlman et al.
patent: 3754214 (1973-08-01), Matsumoto et al.
patent: 4096756 (1978-06-01), Alphonse
patent: 4586377 (1986-05-01), Schmid
patent: 4868447 (1989-09-01), Lee et al.
patent: 5410205 (1995-04-01), Gururaja
patent: 5485053 (1996-01-01), Baz
patent: 5537863 (1996-07-01), Fujiu et al.
patent: 5673220 (1997-09-01), Gendlin
patent: 5825117 (1998-10-01), Ossmann et al.
patent: 6215227 (2001-04-01), Boyd
patent: 6320300 (2001-11-01), Kaminski et al.
patent: 6614144 (2003-09-01), Vazquez Carazo
patent: 6800985 (2004-10-01), Baker et al.
patent: 2002/0017836 (2002-02-01), Chu
patent: 1 382 326 (1972-03-01), None
patent: WO94/02965 (1994-02-01), None
patent: 2 284 298 (1995-05-01), None
patent: 2 329 514 (1999-03-01), None
patent: 2362989 (2001-12-01), None
patent: 4038866 (1992-10-01), None
patent: 9-205029 (1997-08-01), None
patent: 11017126 (1999-01-01), None
patent: WO 92/06509 (1992-04-01), None
patent: WO 99/42282 (1999-08-01), None

Affiliated with

Also associated with

Rating

Piezoelectric devices 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 devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3534388