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IP Mobility Support

This IPR disclosure was submitted by e-mail.

Sections I, II, and IV of "The Patent Disclosure and Licensing Declaration Template for Legacy" have been completed for this IPR disclosure. Additional information may be available in the original submission.

The text of the original IPR disclosure is available further down, and also here:
http://www.ietf.org/ietf-ftp/IPR/mobileip-protocol.

Update this IPR disclosure. 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.

Submitted Date: February 28, 1996

I. Patent Holder/Applicant ("Patent Holder")
Legal Name: Matsushita Electric Indus
II. Patent Holder's Contact for License Application
Name: Atsushi Teraguchi
Title: Manager
Department: Intellectual Property Center
Address1:
Address2:
Telephone: 81-6-908-5939
Fax: 81-6-906-5939
Email: teragua@ipc.mei.co.jp
III. IETF Document or Other Contribution to Which this IPR Disclosure Relates:
Designations for Other Contributions:IP Mobility Support

The text of the original IPR declaration:

On February 28, 1996, the IESG received a message from Matsushita/Panasonic:

Sincerely,
Sukeichi MIKI
Director
Multimedia Development Center
Matsushita Electric Industrial Co.,Ltd.

informing us:

of the current status of our patent
application listed below in advance of its issuance.  We have recently
received "Notice of Allowance" from the U.S. Patent Office concerning our
patent application related to the Mobile IP and are awaiting issuance of
the U.S. patent.  It will be issued around this May.

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

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)

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.

====================
On June 20, 1996, the followng was received:

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
=============================================

On August 7, the following note was reveived

Date:	August 7, 1996
To:	Mr. Steve Coya, Executive Director
From:	A. Teraguchi, Intellectual Property Center,
		      Matsushita Electric Industrial Co., Ltd.
Re:	A letter

(Message)

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

Internet:teragua@ipc.mei.co.jp
TEL	:81-6-908-5939
FAX	:81-6-906-5939