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:
Feb. 19, 2008
Filed:
Aug. 02, 2005
Applicant:
Masami Nasu, Kanagawa, JP;
Inventor:
Masami Nasu, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A technique is disclosed for storing in a recyclable expendable item used in an electronic apparatus first encrypted information generated by encrypting usable/unusable information pertaining to the expendable item using a first key, and a second key corresponding to the first key, decoding the first encrypted information using the second key; and controlling an operation of the electronic apparatus based on a decoding result of the decoding part and decoded usable/unusable information obtained by the decoding part.