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

Patent Owner(s)

Patent Owner	Address
TOYOTA JIDOSHA KABUSHIKI KAISHA	1 TOYOTA-CHO TOYOTA-SHI AICHI-KEN 471-8571
DIAMOND ELECTRIC MFG CO LTD	OSAKA 532-0026
DAIHATSU MOTOR CO LTD	OSAKA JAPAN OSAKA

International Classification(s)

• G01L:MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL ....
• F02P:IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INT....

• 2007 Application Filing Year
• G01L Class
• 671 Applications Filed
• 364 Patents Issued To-Date
• 54.25 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Asano, Morito	Osaka, JP	10	47
# of filed Patents : 10 Total Citations : 47
Fukumura, Yoshiyuki	Osaka, JP	8	59
# of filed Patents : 8 Total Citations : 59
Izumi, Mitsuhiro	Osaka, JP	45	269
# of filed Patents : 45 Total Citations : 269
Kitaura, Kouichi	Aichi-ken, JP	4	12
# of filed Patents : 4 Total Citations : 12
Satoya, Kouichi	Aichi-ken, JP	4	26
# of filed Patents : 4 Total Citations : 26
Yoshioka, Mamoru	Aichi-ken, JP	180	1638
# of filed Patents : 180 Total Citations : 1638

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Patent Citation Ranking

• 2 Citation Count
• G01L Class

• 6.53 % this patent is cited more than
• 14 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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
July 05, 2011	US,7971571,B2   US7971571B2	GRANTED PATENT AS SECOND PUBLICATION
February 26, 2009	US,20090050108,A1   US20090050108A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7971571

Operation control method on the basis of ion current in internal combustion engine

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Abstract

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on the basis of a state of the detected ion current, wherein a control at an engine start point in time on the basis of the state of the ion current is stopped for predetermined cycles just after the engine start.

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Description

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Claims

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Claims data not available

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Legal Events

 

• STCH2015
• FP2015
• LAPS2015
• REMI2015
• FEPP2011
• I2011
• P2009
• AS2008
• AS2008
• F2007
• PD2006

Date	Code	Event	Description
Aug 03, 2015	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jul 05, 2015	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jul 05, 2015
Jul 05, 2015	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Feb 13, 2015	REMI	MAINTENANCE FEE REMINDER MAILED
Dec 06, 2011	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jul 05, 2011	I	Issuance
Feb 26, 2009	P	Published
Sep 09, 2008	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;REEL/FRAME:021498/0880;SIGNING DATES FROM 20080415 TO 20080513 Owner name: DAIHATSU MOTOR CO., LTD, JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;REEL/FRAME:021498/0880;SIGNING DATES FROM 20080415 TO 20080513 Owner name: DIAMOND ELECTRIC MFG. CO., LTD., JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;REEL/FRAME:021498/0880;SIGNING DATES FROM 20080415 TO 20080513 Owner name: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;SIGNING DATES FROM 20080415 TO 20080513;REEL/FRAME:021498/0880 Owner name: DAIHATSU MOTOR CO., LTD, JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;SIGNING DATES FROM 20080415 TO 20080513;REEL/FRAME:021498/0880 Owner name: DIAMOND ELECTRIC MFG. CO., LTD., JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;SIGNING DATES FROM 20080415 TO 20080513;REEL/FRAME:021498/0880 Owner name: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN
Aug 11, 2008	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;REEL/FRAME:021367/0948;SIGNING DATES FROM 20080415 TO 20080513 Owner name: DAIHATSU MOTOR CO., LTD., JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;REEL/FRAME:021367/0948;SIGNING DATES FROM 20080415 TO 20080513 Owner name: DIAMOND ELECTRIC MFG. CO., LTD., JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;REEL/FRAME:021367/0948;SIGNING DATES FROM 20080415 TO 20080513 Owner name: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;SIGNING DATES FROM 20080415 TO 20080513;REEL/FRAME:021367/0948 Owner name: DAIHATSU MOTOR CO., LTD., JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;SIGNING DATES FROM 20080415 TO 20080513;REEL/FRAME:021367/0948 Owner name: DIAMOND ELECTRIC MFG. CO., LTD., JAPAN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASANO, MORITO;FUKUMURA, YOSHIYUKI;IZUMI, MITSUHIRO;AND OTHERS;SIGNING DATES FROM 20080415 TO 20080513;REEL/FRAME:021367/0948 Owner name: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN
Jan 31, 2007	F	Filing
Feb 06, 2006	PD	Priority Date