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. 03, 2013
Filed:
Jun. 30, 2011
Koichi Morino, Kanagawa, JP;
Yuki Kashima, Kanagawa, JP;
Masatoshi Ito, Kanagawa, JP;
Shimpei Sakai, Kanagawa, JP;
Koichi Morino, Kanagawa, JP;
Yuki Kashima, Kanagawa, JP;
Masatoshi Ito, Kanagawa, JP;
Shimpei Sakai, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A semiconductor circuit includes a voltage regulator and a buffer transistor. The voltage regulator converts an input voltage input to an input terminal thereof into an output voltage output to an output terminal thereof. The buffer transistor is an n-channel depletion-mode metal-oxide semiconductor field effect transistor, disposed between the power supply terminal and the voltage regulator with a gate terminal thereof connected to the power supply terminal, a drain terminal thereof connected to the power supply terminal, and a source terminal thereof connected to the input terminal of the voltage regulator.