IPR Details
Hitachi, Ltd.'s Statement about IPR related to RFC 3666

Update this IPR disclosure
Submitted: March 23, 2010 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.

Updates

Updated by

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 hisashi.kumazaki.ek@hitachi.com
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
Email yoshitaka.iwata.bs@hitachi.com
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

RFC:
RFC3666 ("Session Initiation Protocol (SIP) Public Switched Telephone Network (PSTN) Call Flows")

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)

JP3732155,
JP3650091,
JP3993206,
JP4130670,
JP3993207,
JP3993208,
JP4177427,
JP4177428,
JP4177429,
JP4177430,
JP4177431,
JP4177432,
JP4177433,
JP4347401,
JP4347405,
JP4347406,
JP appl. 2009-159637,
US5604737,
US6240085,
US7167467,
US75
Date: Applied on December 15, 1993 in Japan, on December 13, 1994 in USA
Country: USA, Japan

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending No

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

(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 Hisashi Kumazaki
Submitter email hisashi.kumazaki.ek@hitachi.com

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