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. 24, 2009
Filed:
Jul. 29, 2005
Naoki Sato, Kanagawa, JP;
Keiichi Sugai, Miyagi, JP;
Masae Sugawara, Miyagi, JP;
Masashi Oi, Miyagi, JP;
Naoki Sato, Kanagawa, JP;
Keiichi Sugai, Miyagi, JP;
Masae Sugawara, Miyagi, JP;
Masashi Oi, Miyagi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An auxiliary power supply unit, which is attachable to and detachable from an apparatus, includes a charge unit configured to store electric charge, a terminal configured to establish electrical connection for discharge with the apparatus, and a discharge unit situated between the charge unit and the terminal to provide a discharge path that electrically connect the charge unit to the apparatus, the discharge path having an open/closed state thereof controlled during a period when an electric power is supplied from the apparatus, the discharge path being opened in response to a stoppage of supply of the electric power from the apparatus.