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

Patent Owner(s)

Patent Owner	Address
HITACHI METALS LTD	MINATO-KU TOKYO 105-8614

International Classification(s)

• B23P:OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVE....
• B21K:MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOE....
• B23K:SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLA....
• B21J:FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURN....
• B22F:WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES F....
• C22F:CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS MET....
• C22C:ALLOYS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Matsumoto, Hideki	Yasugi, JP	134	1353
Sasaki, Shohei	Yasugi, JP	16	56
Sato, Koji	Tokyo, JP	457	4129

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 21, 2028

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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
March 21, 2017	US,9597725,B2   US9597725B2	GRANTED PATENT AS SECOND PUBLICATION
February 12, 2015	US,20150040639,A1   US20150040639A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9597725

Hot forging die

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