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. 24, 2013
Filed:
Mar. 02, 2011
Yoshinobu Nakayama, Tokyo, JP;
Takahiro Imai, Tokyo, JP;
Yoshinobu Nakayama, Tokyo, JP;
Takahiro Imai, Tokyo, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A transformer Treceives a sinusoidal signal on the primary side. The transformer Tis provided with a terminal, a terminal, and a center tapon the secondary side. The center tapis connected to the anode of a diode D. The cathode of the diode Dis connected to the cathode of a diode Dand one electrode of a capacitor C. The other electrode of the capacitor Cis connected to the anode of a diode Dand a connection point of the second electrode of a piezoelectric element Cand the first electrode of a piezoelectric element C. The second electrode of the piezoelectric element Cis connected to the terminal. The first electrode of the piezoelectric element Cis connected to the cathode of the diode D, the anode of the diode D, and the terminal