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

Patent Owner(s)

Patent Owner	Address
DAINIPPON INK AND CHEMICALS INC	35-58 SAKASHITA 3-CHOME ITABASHI-KU TOKYO

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• A01N:PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLA....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Katakami, Yasuyuki	Chiba, JP	2	8
Miyamoto, Masanori	Sakura, JP	27	148
Sano, Yoshiyuki	Yotsukaido, JP	24	147
Takagaki, Hidetsugu	Sakura, JP	21	115

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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
March 30, 2010	US,7687546,B2   US7687546B2	GRANTED PATENT AS SECOND PUBLICATION
October 30, 2008	US,20080269345,A1   US20080269345A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7687546

Quaternary ammonium compound, process for producing the same, therapeutic agent for cerebrovascular disorder, and therapeutic agent for heart disease

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