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

Patent Owner(s)

Patent Owner	Address
TOYO KOHAN CO LTD	2-18-1 HIGASHI-GOTANDA SHINAGAWA-KU TOKYO

International Classification(s)

• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
• C09B:ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PROD....
• G11B:INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BET....
• G02F:DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF ....
• G03H:HOLOGRAPHIC PROCESSES OR APPARATUS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Miura, Sakiko	Yamaguchi, JP	2	11

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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	Aug 27, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 27, 2029

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
February 27, 2018	US,9902858,B2   US9902858B2	GRANTED PATENT AS SECOND PUBLICATION
August 11, 2016	US,20160230010,A1   US20160230010A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9902858

Nonlinear optical dye, photorefractive material composition, photorefractive substrate and hologram recording medium

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