Patents by Inventor Kouitsu SASAKI

Kouitsu SASAKI 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: 20190300782
    Abstract: An object of the present invention is to provide a wavelength conversion luminescent resin composition that exhibits a high quantum yield, a wavelength conversion member, and a light-emitting element; as well as a method for producing the wavelength conversion luminescent resin composition that exhibits a high quantum yield. The present invention provides a wavelength conversion luminescent resin composition that contains at least one compound represented by Formula (1) and a resin. The substituents in the formula are as defined in the present specification.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yoshinori KANAZAWA, Kousuke Watanabe, Kouitsu Sasaki, Kazuhei Kaneko
  • Publication number: 20190295779
    Abstract: A photoelectric conversion element includes a conductive support, a photoconductor layer including an electrolyte, a charge transfer layer including an electrolyte, and a counter electrode, in which the photoconductor layer has semiconductor fine particles carrying a metal complex dye represented by a specific formula.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Kazuhiro HAMADA, Kouitsu SASAKI, Kousuke WATANABE
  • Publication number: 20190221375
    Abstract: Provided are a photoelectric conversion element including an electrically conductive support, a photoconductor layer including an electrolyte, a charge transfer layer including an electrolyte, and a counter electrode. The photoconductor layer has semiconductor fine particles having a metal complex dye represented by specific Formula (1) supported thereon; a dye-sensitized solar cell; a metal complex dye; a dye solution; and an oxide semiconductor electrode.
    Type: Application
    Filed: March 27, 2019
    Publication date: July 18, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Kouitsu Sasaki, Kousuke Watanabe, Kazuhiro Hamada
  • Publication number: 20190185745
    Abstract: An object of the present invention is to provide a luminescent particle having an emission maximum wavelength in a long wavelength range of 680 nm or longer and exhibiting a high quantum yield; and a compound having an emission maximum wavelength in a long wavelength range of 680 nm or longer and exhibiting a high quantum yield in the particles. According to the present invention, provided is a luminescent particle containing at least one kind of compound represented by Formula (1) (definitions of substituents in the formula are as set forth in the description) and a particle.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Kousuke WATANABE, Naoyuki HANAKI, Kouitsu SASAKI, Tomoaki YOSHIOKA, Kazuhei KANEKO, Yoshinori KANAZAWA
  • Patent number: 10215898
    Abstract: Provided are a near infrared ray absorbent composition which can form a cured film having excellent near infrared ray shielding properties, a near infrared ray cut filter, a manufacturing method of a near infrared ray cut filter, a solid image pickup element, and a camera module. The near infrared ray absorbent composition includes a copper complex that is other than a copper phthalocyanine complex and has a maximum absorption wavelength in a wavelength range of 700 to 1,200 nm and in which a molar light absorption coefficient at the maximum absorption wavelength is greater than or equal to 100 (L/mol·cm).
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: February 26, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Kouitsu Sasaki, Takashi Kawashima, Seiichi Hitomi, Yasuharu Shiraishi
  • Patent number: 10184052
    Abstract: An object of the present invention is to provide a near infrared radiation-absorbing composition having favorable shielding properties in a near infrared range when used to produce cured films, a near infrared radiation cut-off filter and a production method therefor, and a camera module and a production method therefor. The near infrared radiation-absorbing composition including a copper complex formed by reacting a compound (A) having two or more coordinating atoms that form bonds using unshared electron pairs with a copper component.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: January 22, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Seiichi Hitomi, Takashi Kawashima, Kouitsu Sasaki
  • Publication number: 20180204683
    Abstract: Provided are a photoelectric conversion element including an electrically conductive support, a photoconductor layer, a charge transfer layer, and a counter electrode, in which the photoconductor layer has semiconductor fine particles carrying a metal complex dye represented by Formula (1), and at least one of metal complex dyes represented by Formulae (2) and (3), a dye-sensitized solar cell, a dye composition, and an oxide semiconductor electrode. In the formulae, M represents a metal ion. Ar11 to Ar14 each represent an aryl group or the like. L1 and L2 each represent an ethenylene group or the like. R11 to R14 each represent an alkyl group or the like. n11 and n12 each represent an integer of 0 to 3, and n13 and n14 each represent an integer of 0 to 4. X represents —NCS or —SCN. M1 and M2 each represent a proton, a metal cation, or a non-metal cation.
    Type: Application
    Filed: March 15, 2018
    Publication date: July 19, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Kousuke WATANABE, Yukio TANI, Kenji SHIROKANE, Tomoaki YOSHIOKA, Kouitsu SASAKI
  • Publication number: 20180175090
    Abstract: A near infrared absorbing composition includes: a copper compound; a radical trapping agent; and a resin which generates a radical at 180° C. or higher.
    Type: Application
    Filed: February 20, 2018
    Publication date: June 21, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takahiro OKAWARA, Takashi KAWASHIMA, Kazuto SHIMADA, Keisuke ARIMURA, Kouitsu SASAKI
  • Publication number: 20180094086
    Abstract: The near infrared absorbing composition includes: a copper-containing polymer having a copper complex site at a polymer side chain; and a solvent, in which the copper complex site includes a site multidentate-coordinated to a copper atom and at least one selected from the group consisting of a site monodentate-coordinated to a copper atom and a counter ion to a copper complex skeleton, and a polymer main chain and a copper atom at the copper complex site are bonded to each other through the site monodentate-coordinated to a copper atom or the counter ion.
    Type: Application
    Filed: November 22, 2017
    Publication date: April 5, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Kouitsu SASAKI, Takashi KAWASHIMA, Seiichi HITOMI
  • Patent number: 9826129
    Abstract: Provided are a near-infrared-ray-absorbing composition having strong near-infrared shielding properties when a cured film is produced, a near-infrared-ray cut filter, a manufacturing method therefor, a camera module, and a manufacturing method therefor. The near-infrared-ray-absorbing composition includes a copper complex obtained by reacting a compound (A) having at least two coordination sites with a copper component.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: November 21, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Takeshi Inasaki, Takashi Kawashima, Seiichi Hitomi, Kouitsu Sasaki
  • Publication number: 20170227690
    Abstract: Provided are a near infrared ray absorbent composition which can form a cured film having excellent near infrared ray shielding properties, a near infrared ray cut filter, a manufacturing method of a near infrared ray cut filter, a solid image pickup element, and a camera module. The near infrared ray absorbent composition includes a copper complex that is other than a copper phthalocyanine complex and has a maximum absorption wavelength in a wavelength range of 700 to 1,200 nm and in which a molar light absorption coefficient at the maximum absorption wavelength is greater than or equal to 100 (L/mol·cm).
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Kouitsu SASAKI, Takashi KAWASHIMA, Seiichi HITOMI, Yasuharu SHIRAISHI
  • Patent number: 9614165
    Abstract: A photoelectric conversion element including a photoconductor layer, wherein the photoconductor layer contains semiconductor fine particles carrying a metal complex dye of Formula (I); a metal complex dye, a dye solution, a dye-adsorbed electrode, a dye-sensitized solar cell, and a method for producing the solar cell: M(LD)(LA)·(CI) ??Formula (I) wherein M represents a metal ion; LD represents a tridentate ligand of formulas (DL-1) to (DL-4); LA represents a specific tridentate ligand; and CI represents a counter ion: Y1 and Y2 represent an oxygen, sulfur, nitrogen, or phosphorus atom; AD and BD represent a hydrocarbon or hetero ring; L represents a linking group of formulas (L-1) to (L-4); and Ra and Rb represent a substituent, X represents a nitrogen or carbon atom; CD represents hetero ring; T represents —O—, —S—, —NRL2— or —PRL3; RL1 to RL3 represent a hydrogen atom or a substituent; and Alk represents an alkylene group.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: April 4, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Kousuke Watanabe, Kouitsu Sasaki, Katsumi Kobayashi
  • Publication number: 20160304730
    Abstract: An object of the present invention is to provide a near infrared radiation-absorbing composition having favorable shielding properties in a near infrared range when used to produce cured films, a near infrared radiation cut-off filter and a production method therefor, and a camera module and a production method therefor. The near infrared radiation-absorbing composition including a copper complex formed by reacting a compound (A) having two or more coordinating atoms that form bonds using unshared electron pairs with a copper component.
    Type: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Seiichi HITOMI, Takashi KAWASHIMA, Kouitsu SASAKI
  • Publication number: 20160037034
    Abstract: Provided are a near-infrared-ray-absorbing composition having strong near-infrared shielding properties when a cured film is produced, a near-infrared-ray cut filter, a manufacturing method therefor, a camera module, and a manufacturing method therefor. The near-infrared-ray-absorbing composition includes a copper complex obtained by reacting a compound (A) having at least two coordination sites with a copper component.
    Type: Application
    Filed: October 6, 2015
    Publication date: February 4, 2016
    Applicant: FUJIFILM CORPORATION
    Inventors: Takeshi INASAKI, Takashi KAWASHIMA, Seiichi HITOMI, Kouitsu SASAKI
  • Publication number: 20150280145
    Abstract: A photoelectric conversion element including a photoconductor layer, wherein the photoconductor layer contains semiconductor fine particles carrying a metal complex dye of Formula (I); a metal complex dye, a dye solution, a dye-adsorbed electrode, a dye-sensitized solar cell, and a method for producing the solar cell: M(LD)(LA)·(CI) ??Formula (I) wherein M represents a metal ion; LD represents a tridentate ligand of formulas (DL-1) to (DL-4); LA represents a specific tridentate ligand; and CI represents a counter ion: Y1 and Y2 represent an oxygen, sulfur, nitrogen, or phosphorus atom; AD and BD represent a hydrocarbon or hetero ring; L represents a linking group of formulas (L-1) to (L-4); and Ra and Rb represent a substituent, X represents a nitrogen or carbon atom; CD represents hetero ring; T represents —O—, —S—, —NRL2— or —PRL3; RL1 to RL3 represent a hydrogen atom or a substituent; and Alk represents an alkylene group.
    Type: Application
    Filed: June 16, 2015
    Publication date: October 1, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Kousuke WATANABE, Kouitsu SASAKI, Katsumi KOBAYASHI
  • Publication number: 20150248969
    Abstract: A photoelectric conversion element, having a photoconductor layercontaining semiconductor fine particles carrying a metal complex dye of Formula (I); a metal complex dye, a dye solution, a dye-adsorbed electrode, a dye-sensitized solar cell, and a method for producing the solar cell: M(LA)(LD)(LX)mX·(CI)mY??Formula (I) M represents a metal ion, LA represents a ligand of Formula (AL), LD represents a bidentate or tridentate ligand, at least one of coordinating atoms being an anion; LX represents a monodentate ligand; CI represents a counter ion; mX is 0 or 1; mY is 0 to 3; Rings A to C represent a heterocycle; Z1 and Z2 represent a carbon or nitrogen atom; Anc1 to Anc3 represent an acidic group; X1 to X3 represent a single bond or linking group; R1 to R3 represent a substituent; l1, l3, l2, m1, m3, m2, n1, n2, and n3 each are an integer.
    Type: Application
    Filed: May 15, 2015
    Publication date: September 3, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Kousuke WATANABE, Yukio TANI, Kouitsu SASAKI, Hirotaka SATOU, Kazuhiro TSUNA, Katsumi KOBAYASHI