IPR Details
Sony Corporation's Statement about IPR related to draft-katagi-clefia-02

Submitted: July 9, 2010

Note: Updates to IPR disclosures must only be made by authorized representatives of the original submitters. Updates will automatically be forwarded to the current Patent Holder's Contact and to the Submitter of the original IPR disclosure.

Updated by

This IPR disclosure has been updated by IPR disclosure ID #1514, "Sony Corporation's Statement about IPR related to draft-katagi-clefia-03".

I. Patent Holder/Applicant ("Patent Holder")

Holder legal name
Sony Corporation

II. Patent Holder's Contact for License Application

Holder contact name
Masanobu Katagi
Holder contact email
Holder contact info

System Technologies Laboratories
T: +81-3-5448-3701

III. Contact Information for the IETF Participant Whose Personal Belief Triggered this Disclosure

Masanobu Katagi
Other info

System Technologies Laboratories
T: +81-3-5448-3701

IV. IETF Document or Other Contribution to Which this IPR Disclosure Relates

draft-katagi-clefia ("The 128-Bit Blockcipher CLEFIA")
Revisions: 02

V. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by Section 6 of RFC 3979

A. For granted patents or published pending patent applications, please provide the following information:

Patent, Serial, Publication, Registration, or Application/File number(s)

Patent Applications:
JP2003-339364 filed on Sep. 30, 2003
JP2004-256465 filed on Sep. 3, 2004
JP2006-224674 filed on Aug. 21, 2006
JP2006-238225 filed on Sep. 1, 2006
JP2006-238227 filed on Sep. 1, 2006
JP2006-238228 filed on Sep. 1, 2006
Date: See above
Country: JP

Notes: Corresponding patent applications filed in other countries.

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending

VI. Licensing Declaration

The Patent Holder states that its position with respect to licensing any patent claims contained in the patent(s) or patent application(s) disclosed above that would necessarily be infringed by implementation of the technology required by the relevant IETF specification ("Necessary Patent Claims"), for the purpose of implementing such specification, is as follows(select one licensing declaration option only):

Reasonable and Non-Discriminatory License to All Implementers with Possible Royalty/Fee
Licensing information, comments, notes, or URL for further information

(No information submitted)

Note: The individual submitting this template represents and warrants that he or she is authorized by the Patent Holder to agree to the above-selected licensing declaration.

VII. Contact Information of Submitter of this Form

Submitter name
Masanobu Katagi
Submitter email

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