Patents by Inventor Kazuhiko Shiono

Kazuhiko Shiono 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).

  • Publication number: 20240192413
    Abstract: An optical filter, includes: a substrate, a dielectric multilayer film 1 laid on or above one major surface of the substrate, and a dielectric multilayer film 2 laid on or above the other major surface of the substrate, in which the substrate includes a near infrared ray absorbing glass and a resin film, the resin film includes a resin and a pigment (NIR1), and the optical filter satisfies all of spectral characteristics (i-1) to (i-7).
    Type: Application
    Filed: January 2, 2024
    Publication date: June 13, 2024
    Applicant: AGC Inc.
    Inventors: Kazuhiko SHIONO, Takuro SHIMADA, Yuichiro ORITA, Kiyokazu ENDO, Takashi NAGATA
  • Publication number: 20240176054
    Abstract: An optical filter, includes: a near infrared ray absorbing glass, dielectric multilayer films laid on or above both major surfaces of the near infrared ray absorbing glass, and an absorption layer laid on or above a surface of at least one of the dielectric multilayer films and having a maximum absorption wavelength in a near infrared light region, in which the optical filter satisfies all of spectral characteristics (i-1) to (i-5).
    Type: Application
    Filed: January 22, 2024
    Publication date: May 30, 2024
    Applicant: AGC Inc.
    Inventors: Motoshi NAKAYAMA, Takashi NAGATA, Kazuhiko SHIONO, Takeru WAKABAYASHI
  • Patent number: 11993718
    Abstract: The present invention relates to an optical filter containing: an absorption layer containing a near-infrared absorbing dye satisfying the following (i-1) to (i-5), and a transparent resin; and a reflection layer, and satisfying the following (ii-1); (i-1) ?max(A) TR is in a wavelength range of 760 to 900 nm; (i-2) T435-480ave (A) TR and T480-590ave (A) TR are both 90% or more. (i-3) ?max(A) DCM is in a wavelength range of 760 to 900 nm. (i-4) T435-480ave (A) DCM is 95% or more and T480-590ave (A) DCM is 97% or more. (i-5) a difference between T435-480ave (A) DCM and T435-480ave (A) TR, and a difference between T480-590ave (A) DCM and T480-590ave (A) TR are 10.5% or less. (ii-1) an average transmittance of light in the wavelength range of 800 to 900 nm is 5% or less at an incident angle of 60 degrees.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: May 28, 2024
    Assignee: AGC Inc.
    Inventors: Shoko Suzuki, Kazuhiko Shiono, Sayuri Yamada, Hiroki Hotaka
  • Publication number: 20240142680
    Abstract: An optical filter, includes: a substrate, a dielectric multilayer film 1 laid on or above one major surface of the substrate, and a dielectric multilayer film 2 laid on or above the other major surface of the substrate, in which the substrate includes a near infrared ray absorbing glass and a resin film, the resin film includes a resin and a pigment (NIR1), and the optical filter satisfies all of spectral characteristics (i-1) to (i-3), (i-6) to (i-8), and (i-10) to (i-13).
    Type: Application
    Filed: December 27, 2023
    Publication date: May 2, 2024
    Applicant: AGC Inc.
    Inventors: Kazuhiko SHIONO, Takashi NAGATA
  • Publication number: 20240142681
    Abstract: An optical filter, includes: a substrate, a dielectric multilayer film 1 laid on or above one major surface of the substrate, and a dielectric multilayer film 2 laid on or above the other major surface of the substrate, in which the substrate includes a near infrared ray absorbing glass and a resin film, the resin film includes a resin and a pigment (NIR1), and the optical filter satisfies all of spectral characteristics (i-1) to (i-5), (i-7) to (i-10), (i-12) and (i-14).
    Type: Application
    Filed: December 27, 2023
    Publication date: May 2, 2024
    Applicant: AGC Inc.
    Inventors: Kazuhiko SHIONO, Takeru WAKABAYASHI, Takashi NAGATA
  • Publication number: 20230296818
    Abstract: An optical filter includes: an absorption layer including a first near-infrared absorbing dye (D1), a second near-infrared absorbing dye (D2), and a transparent resin; and a reflection layer including a dielectric multilayer film. The dye (D1) and the dye (D2) are squarylium compounds satisfying following (1) to (3). (1) The dye (D1) has a maximum absorption wavelength ?max(D1) within a range of 680 to 730 nm, and the difference between a wavelength at which a transmittance is 80% on the shorter wavelength side than ?max(D1) when the concentration is adjusted such that a transmittance at ?max(D1) is 10%, and ?max(D1) is 100 nm or less. (2) The dye (D2) has a maximum absorption wavelength ?max(D2) within a range of 720 to 770 nm. (3) A value obtained by subtracting ?max(D1) from ?max(D2) is 30 nm or more and 85 nm or less.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 21, 2023
    Applicant: AGC Inc.
    Inventors: Kazuhiko SHIONO, Nanako NISHIMOTO, Sayuri YAMADA, Hiroki HOTAKA, Satoshi OKADA, Keigo MATSUURA
  • Publication number: 20230266513
    Abstract: An optical filter including: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate as an outermost layer, in which the substrate includes a resin film including a dye (I) having a maximum absorption wavelength in a wavelength of 690 to 900 nm in dichloromethane, and a resin, the optical filter transmits visible light and light in at least part of a wavelength of 900 to 1,000 nm, and the optical filter satisfies specific spectroscopic characteristics.
    Type: Application
    Filed: March 17, 2023
    Publication date: August 24, 2023
    Applicant: AGC Inc.
    Inventors: Yuichiro ORITA, Kazuhiko SHIONO, Takashi NAGATA
  • Publication number: 20230258853
    Abstract: An optical filter including: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate as an outermost layer, in which the substrate includes a resin film including a dye (IR) and a resin, the dye (IR) has a maximum absorption wavelength in a wavelength of 680 to 800 nm in the resin, and the optical filter satisfies specific spectroscopic characteristics.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 17, 2023
    Applicant: AGC Inc.
    Inventors: Kazuhiko SHIONO, Takuro SHIMADA, Yuichiro ORITA, Nanako NISHIMOTO, Takashi NAGATA
  • Patent number: 11709298
    Abstract: An optical filter includes: an absorption layer including a first near-infrared absorbing dye (D1), a second near-infrared absorbing dye (D2), and a transparent resin; and a reflection layer including a dielectric multilayer film. The dye (D1) and the dye (D2) are squarylium compounds satisfying following (1) to (3). (1) The dye (D1) has a maximum absorption wavelength ?max(D1) within a range of 680 to 730 nm, and the difference between a wavelength at which a transmittance is 80% on the shorter wavelength side than ?max(D1) when the concentration is adjusted such that a transmittance at ?max(D1) is 10%, and ?max(D1) is 100 nm or less. (2) The dye (D2) has a maximum absorption wavelength ?max(D2) within a range of 720 to 770 nm. (3) A value obtained by subtracting ?max(D1) from ?max(D2) is 30 nm or more and 85 nm or less.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: July 25, 2023
    Assignee: AGC Inc.
    Inventors: Kazuhiko Shiono, Nanako Nishimoto, Sayuri Yamada, Hiroki Hotaka, Satoshi Okada, Keigo Matsuura
  • Patent number: 11693163
    Abstract: An optical filter includes an absorption layer which increases a visible light transmittance while having a good near-infrared blocking characteristic, and which is excellent in not only adhesiveness with respect to a layer to be abutted, but also light resistance. The optical filter includes: an absorption layer containing a near-infrared absorbing dye containing a squarylium-based dye and a transparent resin; and an inorganic or organic material in contact with the absorption layer. The squarylium-based dye has a squarylium skeleton and condensed ring structures bonded thereto respectively on both sides thereof, the condensed ring structures each including a benzene ring and a nitrogen atom as an annular atom, each benzene ring having an urethane structure in the second position.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: July 4, 2023
    Assignee: AGC Inc.
    Inventors: Kazuhiko Shiono, Keigo Matsuura, Sayuri Higashitamori, Hiroki Hotaka
  • Publication number: 20230145740
    Abstract: The present invention relates to an optical filter including: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate, as an outermost layer, in which: the substrate includes a resin film containing a dye (U) having a maximum absorption wavelength in a range of 360 to 395 nm in dichloromethane, a dye (A) having a maximum absorption wavelength in a range of 600 to 800 nm in dichloromethane, and a resin; and the optical filter satisfies spectral characteristics (i-1) to (i-5).
    Type: Application
    Filed: January 17, 2023
    Publication date: May 11, 2023
    Applicant: AGC Inc.
    Inventors: Kazuhiko SHIONO, Takuro SHIMADA, Yuichiro ORITA
  • Publication number: 20220291433
    Abstract: The present invention relates to an optical filter including a resin base material including an infrared-absorbing pigment layer, and a pair of inorganic dielectric layers which are respectively disposed on or above both main surfaces of the resin base material as outermost layers, in which at least one of the pair of inorganic dielectric layers satisfies at least one of a condition in which a film thickness is 4 ?m or greater, and a condition in which the number of layers is 30 or greater, and a ratio of a total film thickness of the pair of inorganic dielectric layers to a film thickness of the resin base material is greater than 8%.
    Type: Application
    Filed: May 25, 2022
    Publication date: September 15, 2022
    Applicant: AGC Inc.
    Inventors: Motoshi NAKAYAMA, Kazuhiko SHIONO, Ryo HIRANO
  • Publication number: 20220276420
    Abstract: An optical filter includes: a transparent substrate; and an absorption layer on the transparent substrate, the absorption layer containing at least one dye (X) having a maximum absorption wavelength in 600 to 1000 nm. A laminate of the transparent substrate and the absorption layer satisfies all of the following characteristics (i-2) to (i-4): (i-2) a maximum internal transmittance in 700 to 850 nm is 35% or lower; (i-3) a difference between the maximum internal transmittance and a minimum internal transmittance in 700 to 850 nm is 20% or smaller; and (i-4) OD(A) and OD(B) satisfy the following relationship: OD(A)/OD(B)<0.07 where OD(A) is an average optical density of an internal transmittance in 500 to 600 nm and OD(B) is an average optical density of an internal transmittance in 700 to 850 nm.
    Type: Application
    Filed: May 13, 2022
    Publication date: September 1, 2022
    Applicant: AGC Inc.
    Inventors: Yuichiro ORITA, Kazuhiko SHIONO, Motoshi NAKAYAMA, Takuro SHIMADA
  • Publication number: 20220179141
    Abstract: The present invention relates to an optical filter including an absorption layer containing a near-infrared absorbing dye and a resin, in which the near-infrared absorbing dye contains a squarylium dye having a maximum absorption wavelength in 650 to 780 nm and a thermal decomposition temperature of 265° C. or higher and satisfying IR20?IR80<65 nm, and the resin has a glass transition temperature of 390° C. or higher.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Applicant: AGC Inc.
    Inventors: Kazuhiko SHIONO, Sayuri YAMADA, Yayoi YAMAMORI
  • Publication number: 20220112121
    Abstract: A near-infrared cut filter glass has: an average transmittance in a wavelength range of 400-550 nm of 50-92%; a transmittance at a wavelength of 700 nm of 40-92%; an average transmittance in a wavelength range of 850-950 nm of 0.0001-70%; and an average transmittance in a wavelength range of 1200-2500 nm of 0.0001-60%.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Applicant: AGC INC.
    Inventors: Takahiro SAKAGAMI, Kazuhiko SHIONO
  • Publication number: 20220011484
    Abstract: An optical filter includes: a resin substrate including a resin (P) which has a glass transition temperature of 200° C. or higher and which has specific transmittance properties; an external resin layer; and dielectric multilayer films. In a case where the external resin layer includes the polyimide resin, the optical filter includes an intermediate resin layer including a cycloolefin resin. At least one of the dielectric multilayer films is a near-infrared reflection layer. At least one of the external resin layer and the intermediate resin layer contains a near-infrared absorbing dye (A). The near-infrared absorbing dye (A) has a maximum absorption wavelength within a wavelength range of 800 nm to 1,200 nm. The proportion of a total thickness of members including a resin having a glass transition temperature of 200° C. or higher to a total thickness of the resin-including members is 85% or higher.
    Type: Application
    Filed: September 23, 2021
    Publication date: January 13, 2022
    Applicant: AGC Inc.
    Inventors: Kazuhiko SHIONO, Motoshi NAKAYAMA, Sayuri YAMADA, Takuro SHIMADA, Masumi MIYAZAKI, Aya ITO, Tatsuo YOKOTE
  • Publication number: 20210191012
    Abstract: An optical filter includes: a resin substrate having a thickness of 20 ?m or more and 110 ?m or less; an absorption layer having a thickness of 0.25 ?m or more and 12 ?m or less and being disposed on at least one principal surface of the resin substrate; and dielectric multilayer films disposed as an outermost layer on both principal surfaces of the resin substrate. At least one of the dielectric multilayer films is a near-infrared reflection layer. The resin substrate includes a first transparent resin having a glass transition temperature of 170° C. or more and having specific optical properties. The absorption layer includes a near-infrared absorbing dye (A) and a second transparent resin having a glass transition temperature of 170° C. or more, and the near-infrared absorbing dye (A) satisfies specific optical properties in relation to the second transparent resin.
    Type: Application
    Filed: March 5, 2021
    Publication date: June 24, 2021
    Applicant: AGC Inc.
    Inventors: Kazuhiko SHIONO, Motoshi NAKAYAMA, Tatsuo YOKOTE, Aya ITO
  • Patent number: 11029457
    Abstract: To provide an optical filter having shielding effects against near ultraviolet rays and near infrared rays. An optical filter comprising a transparent resin body having a single layer or multilayer structure, and containing a near ultraviolet absorbing dye (U) which is a compound represented by the following formula (U) and which has an absorption maximum at a wavelength of from 370 to 425 nm and has a molar absorptivity at the maximum absorption wavelength of at least 50,000 [L/(mol·cm)], and a near infrared absorbing dye (A) which has an absorption maximum at a wavelength of from 600 to 800 nm: In the formula (U), Y is an oxygen atom, a methylene group or a dimethylene group, R1 is a monovalent hydrocarbon group which may have a substituent, or the like, R2 to R5 are a hydrogen atom, an alkyl group, an alkoxy group or the like, and X is a bivalent group represented by any one of the formulae (X1) to (X5) or the like.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: June 8, 2021
    Assignee: AGC Inc.
    Inventors: Kazuhiko Shiono, Asana Yoshioka, Shoko Suzuki, Hiroki Hotaka
  • Publication number: 20200408974
    Abstract: An optical filter includes an absorption layer which increases a visible light transmittance while having a good near-infrared blocking characteristic, and which is excellent in not only adhesiveness with respect to a layer to be abutted, but also light resistance. The optical filter includes: an absorption layer containing a near-infrared absorbing dye containing a squarylium-based dye and a transparent resin; and an inorganic or organic material in contact with the absorption layer. The squarylium-based dye has a squarylium skeleton and condensed ring structures bonded thereto respectively on both sides thereof, the condensed ring structures each including a benzene ring and a nitrogen atom as an annular atom, each benzene ring having an urethane structure in the second position.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Applicant: AGC, Inc.
    Inventors: Kazuhiko SHIONO, Keigo MATSUURA, Sayuri HAGASHITAMORI, Hiroki HOTAKA
  • Publication number: 20200363576
    Abstract: The present invention relates to an optical filter containing: an absorption layer containing a near-infrared absorbing dye (A) having a maximum absorption wavelength in dichloromethane being in a wavelength range of 850 to 1,100 nm and a transparent resin; and a reflection layer formed of a dielectric multilayer film, in which the near-infrared absorbing dye (A) satisfies the following Formulae (1) to (4). ABS400(A)DCM/ABS?max(A)DCM<0.10??(1), ABS550(A)DCM/ABS?max(A)DCM<0.04??(2), ABS400(A)TR/ABS?max(A)TR<0.15??(3), and ABS550(A)TR/ABS?max(A)TR<0.10??(4).
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Applicant: AGC. Inc
    Inventors: Sayuri YAMADA, Kazuhiko SHIONO, Hiroki HOTAKA