MODIFYING AN ELECTRONIC MAIL SYSTEM TO PRODUCE A SECURE DELIVERY SYSTEM - Patent 1386443

(19)

(11)

EP 1 386 443 A2

(12)

(88)	Date of publication A3:
	30.05.2003

(43)	Date of publication:
	04.02.2004 Bulletin 2004/06

(21)	Application number: 02734333.4

(22)	Date of filing: 10.05.2002

(51)	International Patent Classification (IPC)⁷: H04L 9/00

(86)	International application number:
	PCT/US2002/014754

(87)	International publication number:
	WO 2002/091131 (14.11.2002 Gazette 2002/46)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(30)

Priority:

10.05.2001 US 289791 P

(71)	Applicant: Atabok Japan, Inc.
	Tokyo 101-0041 (JP)

(72)	Inventors:
	KOBATA, Hiroshi Newton, MA 02158 (US) GAGNE, Robert Boston, MA 02158 (US)

(74)	Representative: Howe, Steven
	Lloyd WiseCommonwealth House,1-19 New Oxford Street London WC1A 1LW London WC1A 1LW (GB)

(54)	MODIFYING AN ELECTRONIC MAIL SYSTEM TO PRODUCE A SECURE DELIVERY SYSTEM