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

Patent Owner(s)

Patent Owner	Address
SHOWA DENKO MATERIALS CO LTD	TOKYO 100-6606

International Classification(s)

• C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
• G02F:DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF ....
• C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
KIKUCHI, Tooru	Chiyoda-ku, Tokyo, JP	24	129
MUKAIGAITO, Kouhei	Chiyoda-ku, Tokyo, JP	9	4
NISHIMURA, Masato	Chiyoda-ku, Tokyo, JP	39	321
WATANABE, Kazuhito	Chiyoda-ku, Tokyo, JP	53	1013
YAMAGUCHI, Kaho	Chiyoda-ku, Tokyo, JP	2	0

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Dec 16, 2025
7.5 Year Payment	$3600.00	$1800.00	$900.00	Dec 16, 2029
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Dec 16, 2033

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

Full Text

US Patent Application No: 2022/0187,517

WAVELENGTH CONVERSION MEMBER, BACKLIGHT UNIT, IMAGE DISPLAY DEVICE, AND WAVELENGTH CONVERSION RESIN COMPOSITION

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