US PATENT SUBCLASS 310 / 359
.~.~.~.~ More than one poling direction (e.g., Rosen transformer)

Current as of: June, 1999
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310 /   HD   ELECTRICAL GENERATOR OR MOTOR STRUCTURE

300  DF  NON-DYNAMOELECTRIC {4}
311  DF  .~ Piezoelectric elements and devices {17}
357  DF  .~.~ Orientation of piezoelectric polarization {1}
358  DF  .~.~.~ Ceramic composition (e.g., barium titanate) {1}
359.~.~.~.~ More than one poling direction (e.g., Rosen transformer)

DEFINITION

Classification: 310/359

More than one poling direction (e.g., rosen transformer):

(under subclass 358) Subject matter wherein a piezoelectric element is polarized in a curvilinear or more than one linear direction.

(1) Note. This subclass may include memory devices wherein the polarization direction is changed to represent a stored bit of information.

SEE OR SEARCH CLASS

340, Communications: Electrical,

173.2, for ferroelectric storage systems.