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. 17, 2011
Filed:
Mar. 21, 2008
Kazumi Sawayanagi, Itami, JP;
Hironobu Nakata, Itami, JP;
Hiroyuki Kawabata, Kawanishi, JP;
Toshihiko Otake, Ikeda, JP;
Yoshiki Tokimoto, Nishiwaki, JP;
Kazumi Sawayanagi, Itami, JP;
Hironobu Nakata, Itami, JP;
Hiroyuki Kawabata, Kawanishi, JP;
Toshihiko Otake, Ikeda, JP;
Yoshiki Tokimoto, Nishiwaki, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
When a user logs in to an MFP and inserts a medium, a serial number of the medium is stored in a device information database in correspondence with user information of the user, and a descramble key, e.g., a hash code of the serial number is registered in the user information. When the medium is removed from the MFP which is still logged in, the registration is deleted. When the MFP into which the medium is still inserted is logged out, no registration is deleted. When the user logs in to the MFP into which the medium is already inserted, the MFP determines whether a descramble key is registered in user information of the user. When a second user logs in to an MFP from which a first user had logged out while forgetting to remove a medium, the MFP prohibits the second user from accessing the medium because no descramble key is registered in user information of the second user.