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IPR Details
Hitachi's Statement about IPR claimed in RFC 2766

The text of the original IPR disclosure is available in the disclosure history.

Submitted: November 6, 2007 under the rules in RFC 3979 as updated by RFC 4879.

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.

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

Holder legal name Hitachi, LTD

II. Patent Holder's Contact for License Application

Holder contact name Yuji Toda
Holder contact email
Holder contact info

General Manager, IP Business Development Division

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

RFC2766 ("Network Address Translation - Protocol Translation (NAT-PT)")

IV. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by RFC 3979 as updated by RFC 4879

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

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

EP00840482 (GB, DE, FR)
Date: August 20, 2002; December 2, 2005; December 9, 2005; September 12, 2000; February 10, 2004; June 28, 2005; July 19, 2005; July 19, 2005; July 19, 2005; August 9, 2005; January 10, 2006; July 4, 2006; March 20, 2007; April 25, 2007
Country: Japan, USA, EP (GB, DE, FR)

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending No

V. 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):

Licensing 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.

VI. Contact Information of Submitter of this Form

Submitter name
Submitter email

VII. Other Notes

Additional notes

In accordance with the IETF regulations, Hitachi, Ltd. will make those patents identified herein available for a license under reasonable terms and conditions with possible royalty fees that are free of any unfair discrimination to other parties who submit an equivalent undertaking.

Only those sections of the relevant entry form where the submitter provided information are displayed above.