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:
May. 23, 2017
Filed:
May. 13, 2016
Tomoyuki Yamashita, Kanagawa, JP;
Atsuki Iwata, Tokyo, JP;
Takuma Kasai, Kanagawa, JP;
Norikazu Okada, Kanagawa, JP;
Homare Ehara, Kanagawa, JP;
Tetsuya Yano, Kanagawa, JP;
Toshimasa Aoki, Kanagawa, JP;
Ryohta Kubokawa, Kanagawa, JP;
Shuntaroh Nakayama, Kanagawa, JP;
Takaaki Shirai, Tokyo, JP;
Tomoyuki Yamashita, Kanagawa, JP;
Atsuki Iwata, Tokyo, JP;
Takuma Kasai, Kanagawa, JP;
Norikazu Okada, Kanagawa, JP;
Homare Ehara, Kanagawa, JP;
Tetsuya Yano, Kanagawa, JP;
Toshimasa Aoki, Kanagawa, JP;
Ryohta Kubokawa, Kanagawa, JP;
Shuntaroh Nakayama, Kanagawa, JP;
Takaaki Shirai, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electric power supplying device includes a main power supply that supplies electric power to each component of an apparatus, an auxiliary power supply that supplies electric power to an assisted component in the apparatus, the assisted component requiring power supply during start-up time of the apparatus and having a whose start-up time being equal to or longer than a predetermined period of time, a discharging control circuit that controls the auxiliary power supply to cause the auxiliary power supply to output a voltage, the output voltage being lower than a voltage output by the main power supply and being equal to or more than a lower limit voltage of a voltage range that the assisted component is operable, and a power supply prevention circuit that prevents the auxiliary power supply from supplying power to a component other than the assisted component in the apparatus.