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IPR Details
Hitachi, Ltd.'s Statement about IPR related to RFC 2767

Submitted: March 7, 2012 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 Hisashi Kumazaki
Holder contact email
Holder contact info

General Manager
IP Licensing Department II, Intellectual Property Group
Marunouchi Center Building, 6-1 Marunouchi 1-chome
Chiyoda-ku, Tokyo 100-8220 Japan
T: +81-3-5223-4532
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
Business Planning Dapartment
Hitachi Systemplaza Shinkawasaki,890
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

RFC2767 ("Dual Stack Hosts using the "Bump-In-the-Stack" Technique (BIS)")

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)

See Additional Notes
Date: See Additional Notes
Country: See Additional Notes.

Notes: Patents and patent applications:
JP 3915230 granted on Feb 16, 2007, Japan
JP 4349413 granted on Jul 31, 2009, Japan
JP 4670979 granted on Jan 28, 2011, Japan
US 6580717, granted on Jun 17, 2003, USA
US 7385989, granted on Jun 10, 2008, USA
US 7158526, granted on Jan 02, 2007, USA
US 7701952, granted on Apr 20, 2010, USA
US 7957405, granted on Jun 07, 2011, USA

B. Does this disclosure relate to an unpublished pending patent application?: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

Submitter's agreement to RAND licensing does not and shall not apply in situations where submitter is adverse to a prospective licensee who has declined a RAND license or where submitter and prospective licensee are engaged in a contested matter, including a patent office proceeding, involving any IPR listed in this submission.

The patents newly declared this time are related to revised scope of RFC 2767, and are not late declaration for the RFC 2767 before the revision.

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. Yoshitaka Iwata
Submitter email

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