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:
Feb. 21, 2012
Filed:
Sep. 08, 2008
Hiroyuki Takahashi, Kanagawa, JP;
Yusuke Ozaki, Tokyo, JP;
Eiji Nemoto, Tokyo, JP;
Yuji Matsuda, Tokyo, JP;
Hiroki Ohkubo, Kanagawa, JP;
Hiroyuki Takahashi, Kanagawa, JP;
Yusuke Ozaki, Tokyo, JP;
Eiji Nemoto, Tokyo, JP;
Yuji Matsuda, Tokyo, JP;
Hiroki Ohkubo, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A power supply device accumulates charges generated by a photovoltaic unit. The power supply device includes a first capacitor having a first capacitance, in which the charges generated by the photovoltaic unit are charged; a second capacitor having a second capacitance that is larger than the first capacitance; and a switching unit that switches between a first connection of connecting the photovoltaic unit to the first capacitor and a second connection of connecting the first capacitor to the second capacitor.