Patents by Inventor Hiroyuki Chiku
Hiroyuki Chiku 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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Patent number: 11821896Abstract: 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: GrantFiled: September 27, 2019Date of Patent: November 21, 2023Assignee: FUJIFILM CorporationInventors: Hiroyuki Chiku, Kousuke Watanabe, Kazuhei Kaneko, Kazuhiro Hamada, Kouitsu Sasaki, Tomoaki Yoshioka, Naoyuki Hanaki
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Patent number: 11733244Abstract: 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: GrantFiled: September 27, 2019Date of Patent: August 22, 2023Assignee: FUJIFILM CorporationInventors: Hiroyuki Chiku, Kousuke Watanabe, Kazuhei Kaneko, Kazuhiro Hamada, Kouitsu Sasaki, Tomoaki Yoshioka, Naoyuki Hanaki
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Patent number: 11674966Abstract: 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: GrantFiled: September 26, 2019Date of Patent: June 13, 2023Assignee: FUJIFILM CorporationInventors: Hiroyuki Chiku, Tomoaki Yoshioka, Kousuke Watanabe, Kazuhiro Hamada, Kouitsu Sasaki
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Patent number: 11674954Abstract: 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: GrantFiled: September 27, 2019Date of Patent: June 13, 2023Assignee: FUJIFILM CorporationInventors: Hiroyuki Chiku, Kousuke Watanabe, Kazuhei Kaneko, Kazuhiro Hamada, Kouitsu Sasaki, Tomoaki Yoshioka, Naoyuki Hanaki
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Patent number: 11519860Abstract: 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: GrantFiled: September 27, 2019Date of Patent: December 6, 2022Assignee: FUJIFILM CorporationInventors: Hiroyuki Chiku, Tomoaki Yoshioka, Kousuke Watanabe, Kazuhiro Hamada, Kouitsu Sasaki
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Patent number: 11486879Abstract: 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: GrantFiled: September 26, 2019Date of Patent: November 1, 2022Assignee: FUJIFILM CorporationInventors: Hiroyuki Chiku, Tomoaki Yoshioka, Kousuke Watanabe, Kazuhiro Hamada, Kouitsu Sasaki
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Patent number: 11255849Abstract: An object of the present invention is to provide a kit in which a quantitative determination of a substance to be measured in a biological sample can be carried out with high accuracy, even in a case where the substance to be measured includes a plurality of substances having different structures.Type: GrantFiled: August 29, 2018Date of Patent: February 22, 2022Assignee: FUJIFILM CorporationInventors: Hiroyuki Chiku, Noriyuki Kasagi
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Publication number: 20210208138Abstract: An object of the present invention is to provide a composite particle for an immunochromatography which has excellent spreadability, a method for manufacturing the same, and an immunochromatography using the composite particle for an immunochromatography. A composite particle for an immunochromatography of the present invention is a composite particle for an immunochromatography in which magnetic particles having an average particle size of 500 nm or less and gold particles having an average particle size of 500 nm or less are bound via an organic substance.Type: ApplicationFiled: March 18, 2021Publication date: July 8, 2021Applicant: FUJIFILM CorporationInventors: Yoshihiro ABURAYA, Naoyuki NISHIKAWA, Junichi KATADA, Hiroyuki CHIKU, Ayumi ERA
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Patent number: 10883986Abstract: An object of the present invention is to provide a kit for quantitatively determining a bile acid, in which it is possible to improve measurement accuracy by sufficiently dissociating the bile acid from a polymer component, and to rapidly carry out the quantitative determination of the bile acid with high accuracy under various environments, and a method for quantitatively determining the bile acid. According to the present invention, a kit for quantitatively determining a bile acid in a biological sample, including a compound represented by General Formula (I) defined in the present specification in a dry state; a fluorescent particle that has a first binding substance capable of binding to the bile acid; and a substrate that has a detection region having a second binding substance capable of binding to any one of the bile acid and the first binding substance, is provided.Type: GrantFiled: August 29, 2018Date of Patent: January 5, 2021Assignee: FUJIFILM CorporationInventors: Noriyuki Kasagi, Hiroyuki Chiku, Ayumi Era
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Publication number: 20200378962Abstract: 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: ApplicationFiled: August 21, 2020Publication date: December 3, 2020Applicant: FUJIFILM CorporationInventors: Hiroyuki CHIKU, Takeru SHIGEMURA, Kousuke WATANABE, Yoshinori KANAZAWA, Kouitsu SASAKI, Kazuhei KANEKO
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Patent number: 10816469Abstract: An object of the present invention is to provide a kit and a method by which a quantitative determination of a substance to be measured in a biological sample can be carried out with high accuracy while avoiding the influence of an antibody such as an anti-serum albumin antibody present in blood. According to the present invention, a kit for quantitatively determining a substance to be measured in a biological sample, the kit including: a labeled particle that has a first binding substance capable of binding to the substance to be measured, and a first blocking agent; and a substrate that has a detection region having a second binding substance capable of binding to any one of the substance to be measured and the first binding substance, and a second blocking agent, in which the first blocking agent and the second blocking agent are different from each other, is provided.Type: GrantFiled: August 29, 2018Date of Patent: October 27, 2020Assignee: FUJIFILM CorporationInventors: Noriyuki Kasagi, Hiroyuki Chiku
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Publication number: 20200096445Abstract: 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: ApplicationFiled: September 27, 2019Publication date: March 26, 2020Applicant: FUJIFILM CorporationInventors: Hiroyuki CHIKU, Tomoaki YOSHIOKA, Kousuke WATANABE, Kazuhiro HAMADA, Kouitsu SASAKI
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Publication number: 20200033334Abstract: 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: ApplicationFiled: September 27, 2019Publication date: January 30, 2020Applicant: FUJIFILM CorporationInventors: Hiroyuki CHIKU, Kousuke WATANABE, Kazuhei KANEKO, Kazuhiro HAMADA, Kouitsu SASAKI, Tomoaki YOSHIOKA, Naoyuki HANAKI
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Publication number: 20200025770Abstract: 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: ApplicationFiled: September 26, 2019Publication date: January 23, 2020Applicant: FUJIFILM CorporationInventors: Hiroyuki CHIKU, Tomoaki YOSHIOKA, Kousuke WATANABE, Kazuhiro HAMADA, Kouitsu SASAKI
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Publication number: 20200025748Abstract: 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: ApplicationFiled: September 27, 2019Publication date: January 23, 2020Applicant: FUJIFILM CorporationInventors: Hiroyuki Chiku, Kousuke Watanabe, Kazuhei Kaneko, Kazuhiro Hamada, Kouitsu Sasaki, Tomoaki Yoshioka, Naoyuki Hanaki
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Publication number: 20200025771Abstract: 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: ApplicationFiled: September 27, 2019Publication date: January 23, 2020Applicant: FUJIFILM CorporationInventors: Hiroyuki CHIKU, Kousuke WATANABE, Kazuhei KANEKO, Kazuhiro HAMADA, Kouitsu SASAKI, Tomoaki YOSHIOKA, Naoyuki HANAKI
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Publication number: 20200018765Abstract: 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: ApplicationFiled: September 26, 2019Publication date: January 16, 2020Applicant: FUJIFILM CorporationInventors: Hiroyuki Chiku, Tomoaki Yoshioka, Kousuke Watanabe, Kazuhiro Hamada, Kouitsu Sasaki
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Publication number: 20180372737Abstract: An object of the present invention is to provide a kit for quantitatively determining a bile acid, in which it is possible to improve measurement accuracy by sufficiently dissociating the bile acid from a polymer component, and to rapidly carry out the quantitative determination of the bile acid with high accuracy under various environments, and a method for quantitatively determining the bile acid. According to the present invention, a kit for quantitatively determining a bile acid in a biological sample, including a compound represented by General Formula (I) defined in the present specification in a dry state; a fluorescent particle that has a first binding substance capable of binding to the bile acid; and a substrate that has a detection region having a second binding substance capable of binding to any one of the bile acid and the first binding substance, is provided.Type: ApplicationFiled: August 29, 2018Publication date: December 27, 2018Applicant: FUJIFILM CorporationInventors: Noriyuki KASAGI, Hiroyuki CHIKU, Ayumi ERA
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Publication number: 20180372638Abstract: An object of the present invention is to provide a kit and a method by which a quantitative determination of a substance to be measured in a biological sample can be carried out with high accuracy while avoiding the influence of an antibody such as an anti-serum albumin antibody present in blood. According to the present invention, a kit for quantitatively determining a substance to be measured in a biological sample, the kit including: a labeled particle that has a first binding substance capable of binding to the substance to be measured, and a first blocking agent; and a substrate that has a detection region having a second binding substance capable of binding to any one of the substance to be measured and the first binding substance, and a second blocking agent, in which the first blocking agent and the second blocking agent are different from each other, is provided.Type: ApplicationFiled: August 29, 2018Publication date: December 27, 2018Applicant: FUJIFILM CorporationInventors: Noriyuki KASAGI, Hiroyuki CHIKU
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Publication number: 20180372731Abstract: An object of the present invention is to provide a kit in which a quantitative determination of a substance to be measured in a biological sample can be carried out with high accuracy, even in a case where the substance to be measured includes a plurality of substances having different structures.Type: ApplicationFiled: August 29, 2018Publication date: December 27, 2018Applicant: FUJIFILM CorporationInventors: Hiroyuki CHIKU, Noriyuki KASAGI