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IPR Details
Toshiba Intellectual Property Rights Notice for MPLS (Multiprotocol Label Switching)

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

Submitted: April 12, 2003 under the rules in RFC 2026.

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 Toshiba Corporation

II. Patent Holder's Contact for License Application

Holder contact name Taisuke Kato
Holder contact email
Holder contact info

General Manager
Intellectual Property Division
1-1 Shibaura 1-chome
Minato-ku, Tokyo 105-8001, JAPAN

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

IV. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by RFC 2026

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

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

U.S. Patent 6,343,322
U.S. Patent 6,147,989
U.S. Patent 6,304,577
U.S. Patent 6,341,127
U.S. Patent 5,822,319

Notes: Toshiba has additional patents and pending applications which may
be related to MPLS, and is willing to provide the terms of licensing
of its intellectual property related to MPLS upon appropriate written

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending Yes

V. Statement


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):

See text box below for licensing declaration.

Licensing information, comments, notes or URL for further information:

In support of IETF intellectual propert rights procedures, Toshiba
is willing to offer non-exclusive licenses, upon written request
from implemenaters of MPLS, under reasonable and non-discriminatory
terms and conditions, when there is necessary dependence upon
Toshiba patents to implement MPLS.

VI. Contact Information of Submitter of this Form

Submitter name Taisuke Kato
Submitter email

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