IPR Details
Matsushita Electric Industrial Co., Ltd.'s Statement about IPR related to IP Mobility Support

Update this IPR disclosure
Submitted: August 7, 1996 under the rules in RFC 1802.

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

Updates

I. Patent Holder/Applicant ("Patent Holder")

Previous (#2528) This (#2529)
Matsushita Electric Industrial Co., Ltd. Holder legal name Matsushita Electric Industrial Co., Ltd.

II. Patent Holder's Contact for License Application

Previous (#2528) This (#2529)
Atsushi Teraguchi Holder contact name A. Teraguchi
teragua@ipc.mei.co.jp Holder contact email teragua@ipc.mei.co.jp

Manager
Intellectual Property Center
T: 81-6-908-5939
F: 81-6-906-5939

 Holder contact info

Manager, Intellectual Property Center
Matsushita Electric Industrial Co., Ltd.

TEL :81-6-908-5939
FAX :81-6-906-5939

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

Previous (#2528) This (#2529)
Designations for Other Contributions:
IP Mobility Support
Designations for Other Contributions:
IP Mobility Support

IV. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by RFC 1802

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

Previous (#2528) This (#2529)

- U.S. Serial No. : 08/014,766 (8 Feb. 1993)

Notes: This patent application is based on following Japanese patent applications with priority, now pending in Japan.

- Japanese application No. 05-227161 (10 Feb. 1992)
- Japanese application No. 06-095998 (16 Sep. 1992)
- Japanese application No. 06-149689 (10 Nov. 1992)

update June 20, 1996 ----------------------------------

Further to our March 1, 1996 e-mail sent to IESG members, we
have to now inform you, regarding the U. S. patent application
Serial No. 08/014,766, that a U. S. Patent No. 5,517,618 was
issued on May 14, 1996.

We have carefully reviewed, with members specialized in
intellectual property, the relevance of the U. S. Patent to
the Mobile IP draft, or the "IP Mobility Support" draft.
As a result, we concluded that 1) the U. S. Patent discloses
our ideas from which the "IP Mobility Support" draft could
be derived, but 2) claims of the U. S. Patent would not be
broad enough to fully cover the "IP Mobility Support" draft.

On the other hand, we have reviewed also our other related
patent applications, and confirmed that the following
pending patent applications would cover the "IP Mobility
Support" draft.

- a U. S. divisional patent application of the above U. S.
Patent, which includes claims that would be broad enough
to cover the "IP Mobility Support" draft
- a European patent application of publication No. 0 556 012 A2,
which is a corresponding European application of the above
U. S. Patent
- Japanese patent applications No. 05-227161, No. 06-095998,
No. 06-149689, which are priority applications of the
above U. S. Patent
- a Japanese patent application of laid-open No. 05-83260

 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?:

Previous (#2528) This (#2529)
Has patent pending No

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):

Previous (#2528) This (#2529)
See Text Below for Licensing Declaration Licensing See Text Below for Licensing Declaration

After its issuance, Matsushita/Panasonic is also willing to license the
patent on a non-exclusive, non-discriminatory basis and on reasonable terms and conditions for use with the Mobile IP.

 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
IETF specifications.

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
conversion packet"

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
licensee.

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.

Sincerely.

Atsushi Teraguchi

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

Previous (#2528) This (#2529)
Sukeichi Miki Submitter name A. Teraguchi
Submitter email teragua@ipc.mei.co.jp

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