Patents by Inventor Katsuhide Shimmo
Katsuhide Shimmo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240117151Abstract: A composition for infrared-absorbing layers according to the present invention includes: a compound formed by copper ion and a phosphonic acid represented by the following formula (a); and at least one of a phosphoric acid diester represented by the following formula (b1) and a phosphoric acid monoester represented by the following formula (b2). In the composition, fine particles containing at least the compound are dispersed. A content of the phosphonic acid is less than 2.5 times a total content of the phosphoric acid diester and the phosphoric acid monoester on a molar basis. R1 is an alkyl group with 2 to 4 carbon atoms, R21, R22, and R3 are each a monovalent functional group represented by —(CH2CH2O)nR4 wherein n is an integer of 1 to 25 and R4 is an alkyl group with 6 to 25 carbon atoms.Type: ApplicationFiled: December 4, 2023Publication date: April 11, 2024Inventors: Yuichiro KUBO, Katsuhide SHIMMO
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Patent number: 11873385Abstract: A composition for infrared-absorbing layers according to the present invention includes: a compound formed by copper ion and a phosphonic acid represented by the following formula (a); and at least one of a phosphoric acid diester represented by the following formula (b1) and a phosphoric acid monoester represented by the following formula (b2). In the composition, fine particles containing at least the compound are dispersed. A content of the phosphonic acid is less than 2.5 times a total content of the phosphoric acid diester and the phosphoric acid monoester on a molar basis. R1 is an alkyl group with 2 to 4 carbon atoms, R21, R22, and R3 are each a monovalent functional group represented by —(CH2CH2O)nR4 wherein n is an integer of 1 to 25 and R4 is an alkyl group with 6 to 25 carbon atoms.Type: GrantFiled: July 6, 2020Date of Patent: January 16, 2024Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Yuichiro Kubo, Katsuhide Shimmo
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Publication number: 20230417967Abstract: An optical filter 1 includes a frame 10 and a light-absorbing film 20. The frame 10 has a through hole 12. The light-absorbing film 20 is disposed to close the through hole 12 and includes a light-absorbing compound. An average Young's modulus of the light-absorbing film 20 measured by continuous stiffness measurement is 2.5 GPa or less.Type: ApplicationFiled: October 6, 2021Publication date: December 28, 2023Inventors: Yuichiro KUBO, Katsuhide SHIMMO
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Publication number: 20230400615Abstract: An optical filter 1a has a first transmission spectrum satisfying the following requirements (i), (ii), (iii), and (iv) at 25° C. (i) A minimum of a transmittance in a wavelength range of 450 nm to 600 nm is 70% or more. (ii) A maximum of the transmittance in a wavelength range of 300 nm to 370 nm is 5% or less. (iii) A maximum of the transmittance in a wavelength range of 800 nm to 1000 nm is 5% or less. (iv) A minimum of the transmittance in a wavelength range of 1500 nm to 1700 nm is 60% or more.Type: ApplicationFiled: September 22, 2021Publication date: December 14, 2023Inventors: Yuichiro KUBO, Katsuhide SHIMMO
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Patent number: 11640021Abstract: An optical filter (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 nm to 1200 nm is incident on the optical filter (1a) at incident angles of 0°, 30°, and 40°, the optical filter (1a) satisfies given transmittance requirements. IE?1/?2?1 to ?2, IAE?1/?2?1 to ?2, and ISE?1/?2?1 to ?2 defined by the following equations (1) to (3) for two incident angles ?1° and ?2° (?1<?2) selected from 0°, 30°, and 40° satisfy given requirements in a given domain of a wavelength ?.Type: GrantFiled: September 19, 2018Date of Patent: May 2, 2023Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Tomitaka Takagi, Katsuhide Shimmo
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Patent number: 11630252Abstract: An optical filter (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 nm to 1200 nm is incident on the optical filter (1a) at incident angles of 0°, 30°, and 40°, the optical filter (1a) satisfies given transmittance requirements. Nine differences each obtained as a difference between one and another of IE?xR, IE?yG, and IE?zB defined for incident angles ?° of 0°, 30°, and 40° satisfy given requirements, and ranges satisfy given requirements, each range being a difference obtained by subtracting the smallest value of three differences from the largest value of the three differences, the three differences obtained from IE?xR, IE?yG, and IE?zB collectively defined for the same pair selected from the incident angles ?°.Type: GrantFiled: September 19, 2018Date of Patent: April 18, 2023Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Tomitaka Takagi, Katsuhide Shimmo
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Patent number: 11550086Abstract: An optical filter (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 to 1200 nm is incident on the optical filter (1a) at an incident angle of 0°, the optical filter (1a) satisfies given requirements. When light with a wavelength of 300 to 1200 nm is incident on the optical filter (1a) at incident angles of 0°, 30°, 35°, and 40°, the optical filter (1a) satisfies given requirements related to a normalized spectral transmittance. The normalized spectral transmittance is determined by normalization of a spectral transmittance for each incident angle so that the maximum of the spectral transmittance for each incident angle in the wavelength range of 400 to 650 nm is 100%.Type: GrantFiled: November 12, 2018Date of Patent: January 10, 2023Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Tomitaka Takagi, Katsuhide Shimmo
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Patent number: 11535726Abstract: A UV-IR-absorbing composition according to the present invention includes: an absorber formed by a phosphonic acid represented by the following formula (a) and copper ion, the absorber being dispersed in the UV-IR-absorbing composition; a phosphoric acid ester allowing the absorber to be dispersed; a matrix resin; and an alkoxysilane monomer.Type: GrantFiled: December 12, 2017Date of Patent: December 27, 2022Assignee: Nippon Sheet Glass Company, LimitedInventors: Yuichiro Kubo, Katsuhide Shimmo
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Patent number: 11531149Abstract: An optical (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 to 1200 nm is incident on the optical filter (1a) at an incident angle of 0°, the optical filter (1a) satisfies given spectral transmittance requirements. When an average of absolute values of differences each between a value of a normalized spectral transmittance for an incident angle x° and a value of a normalized spectral transmittance for an incident angle y° in the wavelength range of W nm to V nm (W<V) is expressed as ?TSx/yW-V, the optical filter (1a) satisfies requirements ?TS0/40380-530?3%, ?TS0/40450-650?3%, and ?TS0/40530-750?3%.Type: GrantFiled: December 5, 2018Date of Patent: December 20, 2022Assignee: Nippon Sheet Glass Company, LimitedInventors: Tomitaka Takagi, Katsuhide Shimmo
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Patent number: 11428857Abstract: An optical filter (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 nm to 1200 nm is incident on the optical filter (1a) at incident angles of 0°, 30°, and 40°, the optical filter (1a) satisfies given transmittance requirements. IE?1/?2CR, IE?1/?2CG, and IE?1/?2CB defined for two incident angles ?1° and ?2° (?1<?2) selected from 0°, 30°, and 40° satisfy given requirements. Ranges satisfy given requirements, each range being a difference obtained by subtracting the smallest value of IE?1/?2CR, IE?1/?2CG, and IE?1/?2CB defined for the same two incident angles ?1° and ?2° from the largest value of IE?1/?2CR, IE?1/?2CG, and IE?1/?2CB defined for the same two incident angles ?1° and ?2°.Type: GrantFiled: September 19, 2018Date of Patent: August 30, 2022Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Tomitaka Takagi, Katsuhide Shimmo
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Publication number: 20220214481Abstract: The light-absorbing composition according to the present invention includes: a light absorber made of a phosphonic acid represented by the following formula (A) and copper ion; and a curable resin. Alight-absorbing film having desired properties can be provided by curing a coating film of the light-absorbing composition. In the formula (A), R1 to R5 are each independently a hydrogen atom, a halogen atom, a hydroxy group, or a nitro group, and n represents an integer of 1 to 3.Type: ApplicationFiled: May 20, 2020Publication date: July 7, 2022Inventors: Yuichiro KUBO, Katsuhide SHIMMO, Lei CAI, Hitomi MASUDA
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Publication number: 20220206198Abstract: A light-absorbing composition according to the present invention includes: a light absorber; a curable resin; and an alkoxysilane. The alkoxysilane includes a dialkoxysilane. Since the alkoxysilane of the light-absorbing composition includes the dialkoxysilane, desired flexibility is likely to be imparted to a light-absorbing layer owing to an organic functional group of the dialkoxysilane while a strong skeleton having a siloxane bond is formed in the light-absorbing layer.Type: ApplicationFiled: April 17, 2020Publication date: June 30, 2022Inventors: Yuichiro KUBO, Katsuhide SHIMMO, Lei CAI, Yoshihiro TAKAYANAGI, Hitomi MASUDA
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Patent number: 11300719Abstract: A light-absorbing composition includes: a light absorber formed by a phosphonic acid represented by the following formula (a) and copper ion, the light absorber being dispersed in the light-absorbing composition; a phosphoric acid ester allowing the light absorber to be dispersed; and a curable resin. When the light-absorbing composition is applied and cured on one principal surface of a transparent dielectric substrate to form a laminate consisting of a light-absorbing layer being a cured product of the light-absorbing composition and the transparent dielectric substrate, the laminate satisfies predetermined requirements.Type: GrantFiled: November 13, 2017Date of Patent: April 12, 2022Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Yuichiro Kubo, Katsuhide Shimmo
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Publication number: 20220057556Abstract: The liquid composition for optical filters according to the present invention contains: a light absorber; at least one of an alkoxysilane and a hydrolysate of an alkoxysilane; a phosphoric acid ester; and a solvent. The light absorber is formed by a phosphonic acid having an aryl group bonded to a phosphorus atom and copper ion. In the liquid composition, a content of an organic solvent having a relative permittivity of 7 or less at 20° C. is 50 mass % or less.Type: ApplicationFiled: August 27, 2019Publication date: February 24, 2022Inventors: Yuichiro KUBO, Lei CAI, Hitomi MASUDA, Katsuhide SHIMMO
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Publication number: 20200386928Abstract: An optical filter (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 to 1200 nm is incident on the optical filter (1a) at an incident angle of 0°, the optical filter (1a) satisfies given requirements. When light with a wavelength of 300 to 1200 nm is incident on the optical filter (1a) at incident angles of 0°, 30°, 35°, and 40°, the optical filter (1a) satisfies given requirements related to a normalized spectral transmittance. The normalized spectral transmittance is determined by normalization of a spectral transmittance for each incident angle so that the maximum of the spectral transmittance for each incident angle in the wavelength range of 400 to 650 nm is 100%.Type: ApplicationFiled: November 12, 2018Publication date: December 10, 2020Inventors: Tomitaka TAKAGI, Katsuhide SHIMMO
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Publication number: 20200379150Abstract: An optical (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 to 1200 nm is incident on the optical filter (1a) at an incident angle of 0°, the optical filter (1a) satisfies given spectral transmittance requirements. When an average of absolute values of differences each between a value of a normalized spectral transmittance for an incident angle x° and a value of a normalized spectral transmittance for an incident angle y° in the wavelength range of W nm to V nm (W<V) is expressed as ?TSSx/yW-V, the optical filter (1a) satisfies requirements ?TS0/40380-530?3%, ?TS0/40450-650?3%, and ?TS0/40530-750?3%.Type: ApplicationFiled: December 5, 2018Publication date: December 3, 2020Inventors: Tomitaka TAKAGI, Katsuhide SHIMMO
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Patent number: 10830931Abstract: The infrared cut filter of the present invention includes an organic dye-containing layer and a copper phosphonate-containing layer containing fine particles of copper phosphonate. The organic dye-containing layer contains an organic dye so as to have a spectral transmittance that decreases from 70% or more to 50% or less with increasing wavelength in a wavelength range between a wavelength 50 nm shorter than a cut-off wavelength of the infrared cut filter and a wavelength 50 nm longer than the cut-off wavelength of the infrared cut filter.Type: GrantFiled: July 8, 2016Date of Patent: November 10, 2020Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Yuichiro Kubo, Katsuhide Shimmo
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Publication number: 20200333516Abstract: An optical filter (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 nm to 1200 nm is incident on the optical filter (1a) at incident angles of 0°, 30°, and 40°, the optical filter (1a) satisfies given transmittance requirements. IE?1/?2CR, IE?1/?2CG, and IE?1/?2CB defined for two incident angles ?1° and ?2° (?1<?2) selected from 0°, 30°, and 40° satisfy given requirements. Ranges satisfy given requirements, each range being a difference obtained by subtracting the smallest value of IE?1/?2CR, IE?1/?2CG, and IE?1/?2CB defined for the same two incident angles ?1° and ?2° from the largest value of IE?1/?2CR, IE?1/?2CG, and IE?1/?2CB defined for the same two incident angles ?1° and ?2°.Type: ApplicationFiled: September 19, 2018Publication date: October 22, 2020Inventors: Tomitaka TAKAGI, Katsuhide SHIMMO
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Publication number: 20200332084Abstract: A composition for infrared-absorbing layers according to the present invention includes: a compound formed by copper ion and a phosphonic acid represented by the following formula (a); and at least one of a phosphoric acid diester represented by the following formula (b1) and a phosphoric acid monoester represented by the following formula (b2). In the composition, fine particles containing at least the compound are dispersed. A content of the phosphonic acid is less than 2.5 times a total content of the phosphoric acid diester and the phosphoric acid monoester on a molar basis. R1 is an alkyl group with 2 to 4 carbon atoms, R21, R22, and R3 are each a monovalent functional group represented by —(CH2CH2O)nR4 wherein n is an integer of 1 to 25 and R4 is an alkyl group with 6 to 25 carbon atoms.Type: ApplicationFiled: July 6, 2020Publication date: October 22, 2020Inventors: Yuichiro KUBO, Katsuhide SHIMMO
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Publication number: 20200333518Abstract: An optical filter (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 nm to 1200 nm is incident on the optical filter (1a) at incident angles of 0°, 30°, and 40°, the optical filter (1a) satisfies given transmittance requirements. IE?1/?2?1 to ?2, IAE?1/?2?1 to ?2, and ISE?1/?2?1 to ?2 defined by the following equations (1) to (3) for two incident angles ?1° and ?2° (?1<?2) selected from 0°, 30°, and 40° satisfy given requirements in a given domain of a wavelength ?.Type: ApplicationFiled: September 19, 2018Publication date: October 22, 2020Inventors: Tomitaka TAKAGI, Katsuhide SHIMMO