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

Patent Owner(s)

Patent Owner	Address
NIKON CORPORATION	TOKYO 108-6290

International Classification(s)

• C03C:CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREO....
• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

• 2023 Application Filing Year
• C03C Class
• 543 Applications Filed
• 109 Patents Issued To-Date
• 20.08 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
TAKASU, Shuhei	Yamato-shi, JP	5	19
# of filed Patents : 5 Total Citations : 19
YOSHIMOTO, Kohei	Kawasaki-shi, JP	11	2
# of filed Patents : 11 Total Citations : 2

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• 0 Citation Count
• C03C Class

• 0 % this patent is cited more than
• 1 Age

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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	Oct 11, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Oct 11, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Oct 11, 2035

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: 2024/0116,798

OPTICAL GLASS, OPTICAL ELEMENT, OPTICAL SYSTEM, CEMENTED LENS, INTERCHANGEABLE CAMERA LENS, MICROSCOPE OBJECTIVE LENS, AND OPTICAL DEVICE

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Abstract

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An optical glass comprising: by cation %, more than 0% and up to 40% of a content rate of La³⁺; 15% to 65% of a content rate of Ti⁴⁺; and more than 0% and up to 20% of a content rate of Zr⁴⁺; wherein a refractive index (n_d) with respect to a d-line is from 2.00 to 2.35.

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Description

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