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

Patent Owner(s)

Patent Owner	Address
RICOH COMPANY LTD	3-6 NAKAMAGOME 1-CHOME OHTA-KU TOKYO 143-8555
TAKEMOTO YUSHI KABUSHIKI KAISHA	2-5 MINATO-MACHI GAMAGORI-SHI AICHI-KEN 443-8611

International Classification(s)

• G03G:ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Aratani, Satoshi	Gamagoori, JP	9	35
Ogiso, Hiroki	Gamagoori, JP	2	20
Osaki, Tatsuhiko	Toyohashi, JP	7	25
Saito, Takuya	Numazu, JP	77	838
Sawada, Toyoshi	Odawara, JP	71	975
Shiraishi, Keiko	Susono, JP	68	1262
Suzuki, Masanori	Shizuoka-ken, JP	203	2878
Watanabe, Yohichiroh	Fuji, JP	65	1683

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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
December 20, 2005	US,6977129,B2   US6977129B2	GRANTED PATENT AS SECOND PUBLICATION
August 28, 2003	US,20030162018,A1   US20030162018A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 6977129

Charge control agent, toner using same developer containing the toner and developing device containing the developer

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