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

Patent Owner(s)

Patent Owner	Address
KUREHA KAGAKU KOGYO KABUSHIKI KAISHA	9-11 HORIDOME-CHO 1-CHOME NIONBASHI CHUO-KU A CORP OF JAPAN TOKYO

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• C08B:POLYSACCHARIDES; DERIVATIVES THEREOF

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Furusho, Takao	Tokyo, JP	15	77
Hirose, Kunitaka	Tokyo, JP	17	100
Kakuchi, Junji	Tokyo, JP	3	24
Matsunaga, Kenichi	Tokorozawa, JP	130	805
Muto, Shigeaki	Tokyo, JP	13	38
Niimura, Koichi	Sayama, JP	40	175
Oguchi, Yoshiharu	Tokyo, JP	11	118
Oohara, Minoru	Tokyo, JP	2	24
Sugita, Norifumi	Tokyo, JP	2	24
Takahashi, Masaaki	Tokyo, JP	152	1800
Yoshikumi, Chikao	Tokyo, JP	66	419

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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

Full Text

US Patent No: 5089481

Polysaccharides and antiviral drugs containing the same as active ingredient

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