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:
Jul. 29, 2008
Filed:
Aug. 03, 2006
Applicants:
Yukimasa Minami, Chiba, JP;
Yoshifumi Yoshida, Chiba, JP;
Fumiyasu Utsunomiya, Chiba, JP;
Inventors:
Assignee:
Seiko Instruments Inc., Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A Provided is an electronic device in which: alternating current power from an RF coil which receives an electromagnetic wave and converts the electromagnetic wave into power is rectified by a diode and a first capacitor; the power is stepped up by a charge pump type step-up circuit; the power stepped up by the step-up circuit is stored in a second capacitor by a charging and discharging circuit; and the stored power is supplied from the charging and discharging circuit to an RF transmission circuit.