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

Patent Owner(s)

Patent Owner	Address
HITACHI ZOSEN CORPORATION	7-89 NANKO KITA 1-CHOME SUMINOE-KU OSAKA-SHI OSAKA 5598559
OSAKA UNIVERSITY	1-1 YAMADAOKA SUITA-SHI OSAKA 5650871

International Classification(s)

• C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....
• C08C:TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
• B01D:SEPARATION

• 2016 Application Filing Year
• C08F Class
• 2412 Applications Filed
• 1861 Patents Issued To-Date
• 77.16 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
BAMBA, Takeshi	Osaka, JP	5	12
# of filed Patents : 5 Total Citations : 12
NAKAZAWA, Yoshihisa	Osaka, JP	4	12
# of filed Patents : 4 Total Citations : 12
SUZUKI, Nobuaki	Osaka, JP	86	921
# of filed Patents : 86 Total Citations : 921
TAKENO, Shinya	Osaka, JP	3	0
# of filed Patents : 3 Total Citations : 0
YUKI, Isao	Osaka, JP	1	0
# of filed Patents : 1 Total Citations : 0

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Patent Citation Ranking

• 0 Citation Count
• C08F Class

• 0 % this patent is cited more than
• 7 Age

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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	Feb 9, 2026
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Feb 9, 2030

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: 2016/0237,809

Downhole Tool Non Contact Position Measurement System

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Abstract

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A downhole tool includes a position system. The position system includes a hub moveably coupled to a fixed tool string. The hub includes a sensor component. The position system also includes a position sensor disposed within the fixed tool string and segregated from the sensor component. Additionally, the sensor component is at a first pressure and the position sensor is at a second pressure, different than the first pressure.

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Description

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Claims

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