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

Patent Owner(s)

Patent Owner	Address
SUMITOMO OSAKA CEMENT CO LTD	TOKYO JAPAN SIX THOUSAND FIELDS 6 TIMES 28 (ZIP CODE 102-8465) TOKYO TOKYO METROPOLIS
KYOTO UNIVERSITY	KYOTO CITY KYOTO PREFECTURE JAPAN KYOTO-SHI KYOTO

International Classification(s)

• G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
• C09C:TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBRO....
• C09B:ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PROD....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
CHUJO, Yoshiki	Kyoto, JP	30	387
GON, Masayuki	Kyoto, JP	1	0
HARADA, Kenji	Tokyo, JP	137	1030
ITO, Tomomi	Tokyo, JP	21	311
TAKEDA, Ryo	Tokyo, JP	36	331
TANAKA, Kazuo	Kyoto, JP	216	2695

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Sep 27, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	Sep 27, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 27, 2036

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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: 2025/0101,231

PIGMENT AND METHOD FOR PRODUCING SAME, SOLUTION, METAL HYDROXYL AMOUNT EVALUATION METHOD, AND METAL HYDROXYL PROCESSING RATE EVALUATION METHOD

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