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

Patent Owner(s)

Patent Owner	Address
TDK CORPORATION	TOKYO 103-6128

International Classification(s)

• C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....
• H01F:MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF M....
• C01G:COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLAS....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ikeda, Masanori	Tokyo, JP	87	451
Morita, Hiroyuki	Tokyo, JP	116	1035
Murakawa, Yoshitaka	Tokyo, JP	32	367
Murase, Taku	Tokyo, JP	35	120

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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	Mar 27, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Mar 27, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 27, 2034

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 27, 2022	US,11456096,B2   US11456096B2	GRANTED PATENT AS SECOND PUBLICATION
October 03, 2019	US,20190304641,A1   US20190304641A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2019/0304,641

FERRITE SINTERED MAGNET

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