History for IPR disclosure
Matsushita's Patent Claim on RFC2305 ( A Simple Mode of Facsimile Using Internet Mail)

From: http://www.ietf.org/ietf-ftp/IPR//MATSUSHITA-FAX

The following was received on November 4, 1998:

From: KiyoshiToyoda

To the extent that Matsushita Graphic Communication Systems, Inc.(MGCS)
has existing patent right USP 5812278 or may in the future obtain patent
rights which are relative to RFC 2305, MGCS will grant a non-exclusive
license with other parties on a non-discriminatory basis on reasonable
terms and conditions (in according with paragraph 10.3.3 of the RFC 2026).
In the event that such parties might also have or claim rights with respect
to RFC 2305 content, they must also agree to grant licenses under its own
patents to MGCS on non-discriminatory basis on reasonable terms and
conditions.

A party that wishes to receive further information on these license
options, or to request a license, should write to:
    Mr. Toshio Yoshida
    Manager, Intellectual Property Department
    Matsusita Graphic Communication Systems, Inc.
    2-3-8 Shimomeguro, Meguro-ku, Tokyo 153-0064 JAPAN
    E-mail address: Toshio.Yoshida@rdmg.mgcs.mei.co.jp
    Fax:            +81 3 5434 7160