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

Patent Owner(s)

Patent Owner	Address
HITACHI LTD	TOKYO 100-8280

International Classification(s)

• H04B:TRANSMISSION
• G05D:SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC....
• G01S:RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMI....
• G01C:MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
IGARASHI, Yuichi	Tokyo, JP	21	71
ISHINO, Masanori	Tokyo, JP	1	0
MIZUGAKI, Kenichi	Tokyo, JP	27	393

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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	Oct 18, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Oct 18, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Oct 18, 2035

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: 2024/0125,886

ALTITUDE CALCULATION METHOD AND ALTITUDE CALCULATION PROGRAM FOR FLYING BODY, AND FLYING BODY INCLUDING THE SAME

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