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:
Jan. 24, 2006
Filed:
Jul. 20, 2004
Applicants:
Katsu Takeda, Osaka, JP;
Hiroshi Nakatsuka, Osaka, JP;
Takeshi Yamaguchi, Kanagawa, JP;
Kojiro Okuyama, Nara, JP;
Katsunori Moritoki, Osaka, JP;
Inventors:
Katsu Takeda, Osaka, JP;
Hiroshi Nakatsuka, Osaka, JP;
Takeshi Yamaguchi, Kanagawa, JP;
Kojiro Okuyama, Nara, JP;
Katsunori Moritoki, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 41/107 (2006.01);
U.S. Cl.
CPC ...
Abstract
A compact and high-power piezoelectric transformer is realized by using higher order longitudinal extensional mode vibrations and increasing an effective electromechanical coupling factor by a primary electrode which consists of plural electrodes.