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:
Sep. 17, 2002
Filed:
Mar. 30, 2001
Applicant:
Inventors:
Yoshiyuki Watanabe, Tokyo, JP;
Hiroshi Kishi, Tokyo, JP;
Yasuyuki Inomata, Tokyo, JP;
Shigeo Ishii, Tokyo, JP;
Assignee:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 4/1047 ; H01L 4/1083 ; H01L 4/1107 ;
U.S. Cl.
CPC ...
H01L 4/1047 ; H01L 4/1083 ; H01L 4/1107 ;
Abstract
A piezoelectric transformer comprises one or more input parts having first internal electrodes and input terminals and an output part having second internal electrodes and output terminals. Each of the second internal electrodes has an area larger than that of each of the first internal electrodes. By such configuration, output power is increased while heat generation is suppressed and size thereof is not increased.