History for IPR disclosure
Mitsubishi's patent statement pertaining to MISTY

From: http://www.ietf.org/ietf-ftp/IPR/MITSUBISHI-MISTY

Received June 8, 2001
From: Eishi Furukawa

This letter is intended to clarify Mitsubishi Electric Corporation's
patent licensing policy with respect to our patents and a patent
application, PCT/JP96/02154  ("Patents"), which is/are essential to
implement the encryption algorithm MISTY1(One). The proposed Patents
may cover a certain proposed Internet Engineering Task Force (IETF) as
RFC2994 ("Standard").

Mitsubishi Electric Corporation ("Mitsubishi") understands the
importance of widespread use of the Standard, and Mitsubishi is willing
to offer licenses upon request, as follows:

On condition that other company and/or entity shall grant their patents
essentially required to IETF standards under fair and commercially
reasonable terms and conditions on non-discriminatory basis in
accordance with the RFC 2026 policy, Mitsubishi hereby declares that it
is prepared to grant, on the basis of reciprocity and non-
discriminatory, a royalty-free license under the Patents to an
unrestricted number of applicants on a world-wide, with other fair and
reasonable terms and conditions to manufacture, use and/or sell
implementations of the above RFC2994, provided that, Mitsubishi shall
reserve any and all rights to enforce the Patents against any applicant
in the event that such applicant asserts any patents related to
cryptographic technology which are essential to products having MISTY1
function.

Please contact to "MISTY@isl.melco.co.jp" for more information and/or license.


Very truly yours,

Mitsubishi Electric Corporation


Suketaka Tachibana
General Manager
Corporate Licensing Department