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

Patent Owner(s)

Patent Owner	Address
HITACHI CHEMICAL COMPANY LTD	9-2 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1006606 ?1006606

International Classification(s)

• H05K:PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAIL....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
AMANUMA, Shinji	Chiyoda-ku, Tokyo, JP	3	0
KIGUCHI, Kazuya	Chiyoda-ku, Tokyo, JP	10	6
MIYAZAKI, Yasuo	Chiyoda-ku, Tokyo, JP	17	127
NAKAMURA, Yuki	Chiyoda-ku, Tokyo, JP	266	1409
NISHIYAMA, Tomoo	Chiyoda-ku, Tokyo, JP	15	69
TAKEZAWA, Yoshitaka	Chiyoda-ku, Tokyo, JP	79	431
TOGAWA, Mitsuo	Chiyoda-ku, Tokyo, JP	2	11

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Nov 21, 2027
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 21, 2031

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

Full Text

US Patent Application No: 2020/0163,221

CIRCUIT BOARD PRODUCTION METHOD, CIRCUIT SHEET AND CIRCUIT BOARD

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