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. 15, 2018
Filed:
Oct. 23, 2015
International Business Machines Corporation, Armonk, NY (US);
Norihisa Hoshino, Tokyo, JP;
Kohichi Kamijoh, Kanagawa-ken, JP;
Takahiro Kashiuchi, Tokyo, JP;
Naoko Miyamoto, Tokyo, JP;
Maho Takara, Tokyo, JP;
Naohiko Uramoto, Kanagawa-ken, JP;
Katsushi Yamashita, Tokyo, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for recording data including content in a recording medium on a computer apparatus. First encrypted data, obtained by encrypting the data using a medium key created for each recording medium, is recorded in a recording medium. Second encrypted data, obtained by encrypting the medium key using a public key, is recorded in the recording medium. A private key corresponding to the public key is not recorded in the recording medium.