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:
Apr. 24, 2007
Filed:
Apr. 27, 2005
Applicant:
Hideyuki Aota, Hyogo, JP;
Inventor:
Hideyuki Aota, Hyogo, JP;
Assignee:
Ricoh Company, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 3/20 (2006.01); G05F 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A circuit for generating a constant current includes a reference voltage generating circuit configured to generate a reference voltage and a constant current circuit including one or more resistors configured to determine an amount of an electric current generated in response to the reference voltage, the one or more resistors being formed of a metal thin film.