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IPR Details
Hitachi, Ltd.'s Statement about IPR related to RFC 6146

Submitted: May 6, 2014 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 Mr. Katsuyuki Uchiyama
Holder contact email
Holder contact info

Department Manager
IP Business Development Dept., Intellectual Property Division
Marunouchi Center Bldg, 6-1 Marunouchi 1-chome
Chiyoda-ku, Tokyo 100-8220 Japan
T: +81-3-5223-4544
F: +81-3-3214-3146

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

Name Mr. Yoshitaka Iwata
Other info

Planning Manager
R&D Strategy Planning & Export Administration Dept.,Business Development Operation,Telecommunication & Network Systems Division
Hitachi System Plaza Shinkawasaki, 1-1-2 Kashimada, Saiwai,
Kawasaki, Kanagawa, 212-8567 Japan
T: +81-44-549-1794
F: +81-44-549-1793

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

RFC6146 ("Stateful NAT64: Network Address and Protocol Translation from IPv6 Clients to IPv4 Servers")

V. 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)

Date: 3/12/2004,4/14/2006,4/14/2006,1/12/2007,7/11/2008,1/28/2011,11/9/2012,3/14/2000,8/8/2006,10/16/2007,7/31/2007,7/24/2007,1/26/2010,6/21/2011,11/12/2013,7/2/1997
Country: USA,Japan

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending Yes

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):

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

If a submission by Hitachi is included in an IETF standard and Hitachi has patent(s) that are essential to the implementation of such IETF standard, Hitachi is prepared to offer non-exclusive license on reasonable, non-discriminatory terms, provided that such terms shall include a reciprocal grantback license from a prospective licensee. Notwithstanding the foregoing, Hitachi's offer shall not apply in situations where a prospective licensee is adverse to Hitachi or where a prospective licensee and Hitachi are engaged in a contested matter, including a patent office proceeding, involving any IPR listed in the submission.

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 Mr. Katsuyuki Uchiyama
Submitter email

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