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: 20240192414
    Abstract: The present invention provides a laminate having excellent clearness of reflected light without impairing visibility of an image, a visual-line tracking system using the laminate, and a head-mounted display on which the visual-line tracking system is mounted. The laminate including a near infrared light reflecting layer and a near infrared light absorbing layer, in which a visible light transmittance of the laminate is 60% or more, the near infrared light absorbing layer contains a near infrared absorbing compound, and the following expressions (1) and (2) are satisfied. ??1?3°??(1) R2/R1?0.
    Type: Application
    Filed: January 3, 2024
    Publication date: June 13, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Kazuya HISANAGA, Yuki HIRAI, Kouitsu SASAKI, Shinichi MORISHIMA
  • Patent number: 11821896
    Abstract: An object of the present invention is to provide a kit and a method which are capable of measuring a measurement target substance in a biological sample with high precision in a measurement range from a low concentration range to a high concentration range. According to the present invention, there is provided a kit for measuring a measurement target substance in a biological sample, including a labeled particle having a first binding substance capable of binding to a measurement target substance in a biological sample, and a substrate having a second binding substance capable of binding to any one of the measurement target substance or the first binding substance, in which the labeled particle is a luminescent labeled particle containing at least one kind of compound represented by Formula (1) and a particle. Each symbol in Formula (1) has the meaning described in the present specification.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: November 21, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Chiku, Kousuke Watanabe, Kazuhei Kaneko, Kazuhiro Hamada, Kouitsu Sasaki, Tomoaki Yoshioka, Naoyuki Hanaki
  • Patent number: 11733244
    Abstract: An object of the present invention is to provide a kit, a method, and a reagent which prevent the problem of false positive due to nonspecific adsorption, suppress the increase in noise to be generated, and are capable of achieving high-precision measurement of a measurement target substance in a wide concentration range from a low concentration to a high concentration.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: August 22, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Chiku, Kousuke Watanabe, Kazuhei Kaneko, Kazuhiro Hamada, Kouitsu Sasaki, Tomoaki Yoshioka, Naoyuki Hanaki
  • Patent number: 11674966
    Abstract: An object of the present invention is to provide a kit and a method which are capable of measuring a measurement target substance in a biological sample with high precision in a measurement range from a low concentration range to a high concentration range. According to the present invention, there is provided a kit for measuring a measurement target substance in a biological sample, including a labeled particle having a first binding substance capable of binding to a measurement target substance in a biological sample, and a substrate having a second binding substance capable of binding to any one of the measurement target substance or the first binding substance, in which the labeled particle is a luminescent labeled particle containing at least one kind of compound represented by Formula (1) and a particle. Each symbol in Formula (1) has the meaning described in the present specification.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: June 13, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Chiku, Tomoaki Yoshioka, Kousuke Watanabe, Kazuhiro Hamada, Kouitsu Sasaki
  • Patent number: 11674954
    Abstract: An object of the present invention is to provide a kit and a method capable of achieving high-precision measurement of a measurement target substance in a biological sample in a wide concentration range from a low concentration to a high concentration. According to the present invention, there is provided a kit for measuring a measurement target substance in a biological sample, the kit including: a labeled particle having a first binding substance capable of binding to the measurement target substance in a biological sample and having a first blocking agent; and a substrate having a second binding substance capable of binding to any one of the measurement target substance or the first binding substance and having a second blocking agent, in which the labeled particle is a luminescent labeled particle containing at least one kind of compound represented by Formula (1) and a particle, and the first blocking agent and the second blocking agent are different from each other.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: June 13, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Chiku, Kousuke Watanabe, Kazuhei Kaneko, Kazuhiro Hamada, Kouitsu Sasaki, Tomoaki Yoshioka, Naoyuki Hanaki
  • Patent number: 11519860
    Abstract: An object of the present invention is to provide a kit, a method, and a reagent which prevent the problem of false positive due to nonspecific adsorption, suppress the increase in noise to be generated, and are capable of achieving high-precision measurement of a measurement target substance in a wide concentration range from a low concentration to a high concentration.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: December 6, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Chiku, Tomoaki Yoshioka, Kousuke Watanabe, Kazuhiro Hamada, Kouitsu Sasaki
  • Patent number: 11486879
    Abstract: An object of the present invention is to provide a kit and a method capable of achieving high-precision measurement of a measurement target substance in a biological sample in a wide concentration range from a low concentration to a high concentration by sufficiently avoiding the influence of antibodies such as anti-serum albumin antibody present in blood.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: November 1, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Chiku, Tomoaki Yoshioka, Kousuke Watanabe, Kazuhiro Hamada, Kouitsu Sasaki
  • Publication number: 20210380881
    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: August 19, 2021
    Publication date: December 9, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Kousuke WATANABE, Naoyuki HANAKI, Kouitsu SASAKI, Tomoaki YOSHIOKA, Kazuhei KANEKO, Yoshinori KANAZAWA
  • Patent number: 11186769
    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: Grant
    Filed: June 17, 2019
    Date of Patent: November 30, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Yoshinori Kanazawa, Kousuke Watanabe, Kouitsu Sasaki, Kazuhei Kaneko
  • Publication number: 20210364524
    Abstract: An object of the present invention is to provide a kit for measuring a measurement target substance and a method for measuring a measurement target substance, which can exhibit a high noise suppression effect. According to the present invention, there is provide a kit for measuring a measurement target substance in a biological sample, which includes a luminescently labeled particle that has a first binding substance having a binding property to a measurement target substance, a substrate that has a detection area on a metal film having a second binding substance having a binding property to any one of the measurement target substance or the first binding substance, and a non-luminescent high molecular particle containing a predetermined structural unit.
    Type: Application
    Filed: August 4, 2021
    Publication date: November 25, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yoshinori KANAZAWA, Kazuhei KANEKO, Kouitsu SASAKI
  • Patent number: 11136500
    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: Grant
    Filed: February 22, 2019
    Date of Patent: October 5, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Kousuke Watanabe, Naoyuki Hanaki, Kouitsu Sasaki, Tomoaki Yoshioka, Kazuhei Kaneko, Yoshinori Kanazawa
  • Patent number: 11094474
    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: Grant
    Filed: June 12, 2019
    Date of Patent: August 17, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Kazuhiro Hamada, Kouitsu Sasaki, Kousuke Watanabe
  • Publication number: 20200378962
    Abstract: An object of the present invention is to provide a kit, a method, and a reagent which prevent the problem of false positive due to nonspecific adsorption, suppress the increase in noise to be generated, and are capable of achieving high-precision measurement of progesterone in a wide concentration range from a low concentration to a high concentration, in the measurement of progesterone in a biological sample.
    Type: Application
    Filed: August 21, 2020
    Publication date: December 3, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki CHIKU, Takeru SHIGEMURA, Kousuke WATANABE, Yoshinori KANAZAWA, Kouitsu SASAKI, Kazuhei KANEKO
  • Publication number: 20200096445
    Abstract: An object of the present invention is to provide a kit, a method, and a reagent which prevent the problem of false positive due to nonspecific adsorption, suppress the increase in noise to be generated, and are capable of achieving high-precision measurement of a measurement target substance in a wide concentration range from a low concentration to a high concentration.
    Type: Application
    Filed: September 27, 2019
    Publication date: March 26, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki CHIKU, Tomoaki YOSHIOKA, Kousuke WATANABE, Kazuhiro HAMADA, Kouitsu SASAKI
  • Publication number: 20200033334
    Abstract: An object of the present invention is to provide a kit and a method capable of achieving high-precision measurement of a measurement target substance in a biological sample in a wide concentration range from a low concentration to a high concentration. According to the present invention, there is provided a kit for measuring a measurement target substance in a biological sample, the kit including: a labeled particle having a first binding substance capable of binding to the measurement target substance in a biological sample and having a first blocking agent; and a substrate having a second binding substance capable of binding to any one of the measurement target substance or the first binding substance and having a second blocking agent, in which the labeled particle is a luminescent labeled particle containing at least one kind of compound represented by Formula (1) and a particle, and the first blocking agent and the second blocking agent are different from each other.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 30, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki CHIKU, Kousuke WATANABE, Kazuhei KANEKO, Kazuhiro HAMADA, Kouitsu SASAKI, Tomoaki YOSHIOKA, Naoyuki HANAKI
  • Publication number: 20200025770
    Abstract: An object of the present invention is to provide a kit and a method capable of achieving high-precision measurement of a measurement target substance in a biological sample in a wide concentration range from a low concentration to a high concentration by sufficiently avoiding the influence of antibodies such as anti-serum albumin antibody present in blood.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 23, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki CHIKU, Tomoaki YOSHIOKA, Kousuke WATANABE, Kazuhiro HAMADA, Kouitsu SASAKI
  • Publication number: 20200025748
    Abstract: An object of the present invention is to provide a kit and a method which are capable of measuring a measurement target substance in a biological sample with high precision in a measurement range from a low concentration range to a high concentration range. According to the present invention, there is provided a kit for measuring a measurement target substance in a biological sample, including a labeled particle having a first binding substance capable of binding to a measurement target substance in a biological sample, and a substrate having a second binding substance capable of binding to any one of the measurement target substance or the first binding substance, in which the labeled particle is a luminescent labeled particle containing at least one kind of compound represented by Formula (1) and a particle. Each symbol in Formula (1) has the meaning described in the present specification.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki Chiku, Kousuke Watanabe, Kazuhei Kaneko, Kazuhiro Hamada, Kouitsu Sasaki, Tomoaki Yoshioka, Naoyuki Hanaki
  • Publication number: 20200025771
    Abstract: An object of the present invention is to provide a kit, a method, and a reagent which prevent the problem of false positive due to nonspecific adsorption, suppress the increase in noise to be generated, and are capable of achieving high-precision measurement of a measurement target substance in a wide concentration range from a low concentration to a high concentration.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki CHIKU, Kousuke WATANABE, Kazuhei KANEKO, Kazuhiro HAMADA, Kouitsu SASAKI, Tomoaki YOSHIOKA, Naoyuki HANAKI
  • Publication number: 20200018765
    Abstract: An object of the present invention is to provide a kit and a method which are capable of measuring a measurement target substance in a biological sample with high precision in a measurement range from a low concentration range to a high concentration range. According to the present invention, there is provided a kit for measuring a measurement target substance in a biological sample, including a labeled particle having a first binding substance capable of binding to a measurement target substance in a biological sample, and a substrate having a second binding substance capable of binding to any one of the measurement target substance or the first binding substance, in which the labeled particle is a luminescent labeled particle containing at least one kind of compound represented by Formula (1) and a particle. Each symbol in Formula (1) has the meaning described in the present specification.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 16, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki Chiku, Tomoaki Yoshioka, Kousuke Watanabe, Kazuhiro Hamada, Kouitsu Sasaki
  • Patent number: 10460879
    Abstract: A photoelectric conversion element, having a photoconductor layer containing 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: Grant
    Filed: May 15, 2015
    Date of Patent: October 29, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Kousuke Watanabe, Yukio Tani, Kouitsu Sasaki, Hirotaka Satou, Kazuhiro Tsuna, Katsumi Kobayashi