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

Date Type By Text
2015-01-28 Changed disclosure metadata Ryan Cross Changed disclosure metadata
2015-01-28 Changed disclosure metadata Ryan Cross Changed disclosure metadata
2015-01-28 Changed disclosure metadata Ryan Cross Changed disclosure metadata
1996-02-28 Posted (System) IPR Disclosure Posted
1996-02-28 Submitted (System) IPR Disclosure Submitted
1996-02-28 Legacy (System)
From: http://www.ietf.org/ietf-ftp/IPR/mobileip-protocol

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 …
From: http://www.ietf.org/ietf-ftp/IPR/mobileip-protocol

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