The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2005
Filed:
May. 31, 1999
Katsunori Kumasaka, Soma, JP;
Masao Yamaguchi, Sendai, JP;
Katsunori Kumasaka, Soma, JP;
Masao Yamaguchi, Sendai, JP;
NEC TOKIN Corporation, Miyagi, JP;
Abstract
A piezoelectric transformer () comprises a layered structure () formed by alternately stacking a plurality of internal electrodes () and a plurality of piezo-electric ceramics layers () in thickness direction, first electrodes () formed on side surfaces of said layered structure () and connected to said internal electrodes (), at least one pair of second electrodes () formed on the side surfaces in areas different from those of the first electrodes () and having a same potential, and a circuit board for driving the piezoelectric transformer. The piezoelectric transformer () is mounted on the circuit board. Each of the at least one pair of the second electrodes () opposite to each other is electrically connected to the circuit board.