Matsushita Electric Industrial Co., Ltd.'s Statement about IPR related to IP Mobility Support
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.
IPR Disclosure ID #2528, "Matsushita Electric Industrial Co., Ltd.'s Statement about IPR related to IP Mobility Support"
I. Patent Holder/Applicant ("Patent Holder")
- Holder legal name
- Matsushita Electric Industrial Co., Ltd.
II. Patent Holder's Contact for License Application
- Holder contact name
- A. Teraguchi
- Holder contact email
- Holder contact info
Manager, Intellectual Property Center
Matsushita Electric Industrial Co., Ltd.
III. IETF Document or Other Contribution to Which this IPR Disclosure Relates
- Designations for Other Contributions
- IP Mobility Support
IV. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by Section 6 of RFC 3979
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. divisional patent application of the U.S. patent No. 5,517,618
European patent application of publication No. 0 556 012 A2
Japanese patent application of laid-open No. 05-83260
B. Does this disclosure relate to an unpublished pending patent application?:
- Has patent pending
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):
- See Text Below for Licensing Declaration
- Licensing information, comments, notes, or URL for further information
Dear Mr. Coya:
We are writing to you, because Mr. Sukeichi Miki asked us for communicating
with you in order to inform you of the specific terms and conditions under
which Matsushita is willing to grant a license of a patent to implementors of
First, we would like to inform you of a scope of a claim of our pending patent
applications, a U.S. divisional patent application of the U.S. patent No.
5,517,618, a European patent application of publication No. 0 556 012 A2, and
Japanese patent application of laid-open No. 05-83260, as follows.
" a migration communication control device constructed to control a
communication between a mobile node and a partner node, the mobile node
migrating across networks and obtaining an address assigned on each network
while the partner node being a communication partner of the mobile node,
comprising a first migration control unit and a second migration control unit,
the second migration control unit being placed on the mobile node,
wherein the first migration control unit comprises:
packet transfer means for receiving a packet which was destined for an
outdated address of the mobile node, the outdated address assigned when the
mobile node migrated to a network to which the first migration control unit is
attached, generating a conversion packet which holds an updated address instead
of the outdated address, and transmitting the conversion packet; and
the second migration control unit comprises:
migration post means for transmitting to the first migration control
unit a migration post message which indicates the updated address of the mobile
node when the mobile node migrates to another network; and
packet resumption means for receiving the conversion packet from the
first migration control unit and resuming an original packet from the
We believe the scope of the claim above-mentioned might cover a basic
architecture of the "IP Mobility Support" draft. As described in Section 1.5 of
the draft, Mobile IP introduced three new functional entities, a Mobile Node, a
Home Agent and a Foreign Agent. We consider that the Mobile Node is
corresponded to the second migration control unit, and both of the Home Agent
and the Foreign Agent are corresponded to the first migration control unit in
our patent applications, although these patent applications are still pending
at present, not issued as patents.
By the way, we really intend to contribute to development of the Internet
community and to keep a good relationship with IAB/IESG/IETF. We believe that
our case would be a good examples for patent license in the field of the
Internet community. However, our patent applications are still pending in each
country's patent office as mentioned above. It seems to us that we could not
offer the specific terms and conditions under our patents, till they will be
issued as patents and the patent coverage will be fixed.
We hope that a list of our patent and patent applications related Mobile IP
will be on Mobile IP RFC documents because such information would be usefull
and valuable for Mobile IP implementors. After issuance as patent, we are
willing to grant a license of the patent, on a non-exclusive,
non-discriminatory and on reasonable terms and conditions, to possible
It would be helpfull for us to know some cases of license's terms and
conditions in the field of Internet community if any.
We would thank you in advance for your advices and information.
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
- A. Teraguchi
- Submitter email
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