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. 15, 2020
Filed:
Mar. 12, 2019
Kenichi Watanabe, Kanagawa, JP;
Tomohiro Shuta, Kanagawa, JP;
Yuuya Mori, Shiga, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A power supply device installed in an electronic apparatus includes a first power supply outputting power upon a plug being connected to a system power supply, a second power supply outputting power upon receiving of a power supply control signal, a third power supply outputting power from a battery, a controller operating using the power from the second power supply and configured to control the electronic apparatus, a flip-flop configured to operate using the power from the third power supply and configured to store, upon activating the electronic apparatus, first logic data or upon shutting down the electronic apparatus, second logic data, and a power supply control switch operating using the power from the first power supply, to output the power supply control signal to the second power supply, in response to activating the electronic apparatus or in response to storing the first logic data in the flip-flop.