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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

• MITSUBISHI DENKI KABUSHIKI KAISHA;NIPPON TELEGRAPH AND TELEPHONE CORPORATION

International Classification(s)

• H04L:TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAP....
• G06F:ELECTRIC DIGITAL DATA PROCESSING
• H04K:SECRET COMMUNICATION; JAMMING OF COMMUNICATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Aoki, Kazumaro	Tokyo, JP	11	138
Kanda, Masayuki	Tokyo, JP	15	207
Matsui, Mitsuru	Tokyo, JP	22	437
Moriai, Shiho	Tokyo, JP	60	1307
Nakajima, Junko	Tokyo, JP	22	151
Tokita, Toshio	Tokyo, JP	12	199

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 13, 2010	US,7697684,B2   US7697684B2	GRANTED PATENT AS SECOND PUBLICATION
March 02, 2006	US,20060045265,A1   US20060045265A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7697684

Block cipher apparatus using auxiliary transformation

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