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:
Jul. 15, 2014
Filed:
Feb. 21, 2013
Applicant:
Fumihiro Inoue, Tokyo, JP;
Inventor:
Fumihiro Inoue, Tokyo, JP;
Assignee:
Mitsumi Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); G05F 1/613 (2006.01);
U.S. Cl.
CPC ...
Abstract
A step-up circuit includes a capacitor, a transistor connected to the capacitor, and a reference voltage generator circuit configured to supply the transistor with a reference voltage that causes a rate of voltage increase relative to supply voltage to vary in accordance with the supply voltage.