Patents by Inventor Kohta Igarashi
Kohta Igarashi 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: 20240150693Abstract: The invention of the present application provides a sterile container for cell culture that is sufficiently sterilized but sufficiently retains a low cell adsorption property and that easily forms cell aggregates by cell culture. The sterile container for cell culture having a low cell adsorption property of the invention of the present application includes a cell accommodation part which is made of a resin material and is capable of accommodating cells and a liquid culture medium to perform cell culture, in which a coating layer made of a water-soluble resin having a hydrophilic functional group at a side chain is formed on an inner surface of the cell accommodation part, cross-linking is formed in the water-soluble resin itself and between the water-soluble resin and the inner surface of the cell accommodation part, and the container is subjected to a radiation sterilization treatment with an absorbed radiation dose of 20 kGy or more and 45 kGy or less.Type: ApplicationFiled: March 8, 2022Publication date: May 9, 2024Inventor: Kohta Igarashi
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Publication number: 20190031993Abstract: A cell accommodating chip is adapted for use in a screening apparatus for searching for a predetermined cell based on optical information emitted from a substance on the cell accommodating chip and selectively collecting the cell searched for. The cell accommodating chip includes a substrate composed of a light-transmitting material, and a plurality of wells capable of accommodating cells, the plurality of wells being provided on at least one of main faces of the substrate. A surface of the cell accommodating chip having the plurality of wells is coated with a specific polymer having a crosslinked structure.Type: ApplicationFiled: September 28, 2018Publication date: January 31, 2019Applicant: Furukawa Electric Co., Ltd.Inventors: Mariko MATSUNAGA, Ken TSUKll, Kenichi KIMURA, Toru TAKAHASHI, Jie XU, Takayuki MATSUMOTO, Kohta IGARASHI
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Patent number: 9310358Abstract: A sugar chain array containing a sugar chain immobilized thereon for detecting binding between an analyte and a sugar chain, and a sugar chain array having the sugar chain immobilized thereon that is capable of inhibiting non-specific adsorption and binding of an analyte without having to coat the array with an adsorption inhibitor. A specific sugar chain is immobilized on the array, and is useful for detecting binding between the sugar chain and an analyte, such as a pathogen of an infectious disease or an excretion thereof. In addition, in the array, when a base material is coated with a polymeric compound having a unit having a primary amino group, a unit for maintaining hydrophilicity, and a unit having a hydrophobic group, the sugar chain is immobilized efficiently and non-specific adsorption and binding of the analyte can be effectively inhibited.Type: GrantFiled: July 29, 2011Date of Patent: April 12, 2016Assignees: SUMITOMO BAKELITE CO., LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Shin-Ichiro Nishimura, Takahiko Matsushita, Hideyuki Shimaoka, Wataru Takada, Kohta Igarashi, Midori Abe, Hiroki Abe, Masao Fukushima
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Patent number: 9267942Abstract: A sugar chain array containing a sugar chain immobilized thereon for detecting binding between an analyte and a sugar chain, and a sugar chain array having the sugar chain immobilized thereon that is capable of inhibiting non-specific adsorption and binding of an analyte without having to coat the array with an adsorption inhibitor. A specific sugar chain is immobilized on the array, and is useful for detecting binding between the sugar chain and an analyte, such as a pathogen of an infectious disease or an excretion thereof. In addition, in the array, when a base material is coated with a polymeric compound having a unit having a primary amino group, a unit for maintaining hydrophilicity, and a unit having a hydrophobic group, the sugar chain is immobilized efficiently and non-specific adsorption and binding of the analyte can be effectively inhibited.Type: GrantFiled: July 29, 2011Date of Patent: February 23, 2016Assignees: SUMITOMO BAKELITE CO., LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Shin-Ichiro Nishimura, Takahiko Matsushita, Hideyuki Shimaoka, Wataru Takada, Kohta Igarashi, Midori Abe, Hiroki Abe, Masao Fukushima
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Publication number: 20130316932Abstract: The present invention provides: a glycopeptide array which is useful for the detection of the binding between a substance to be detected and a glycopeptide; and an array which can inhibit the non-specific adsorption or binding of a substance to be detected without the need of coating any adsorption-inhibiting agent and which has the glycopeptide immobilized thereon. In the present invention, it was found that a glycopeptide that has a molecule having a carbonyl group bound to a peptide moiety thereof can be immobilized on a substrate that is coated with a polymer compound containing a unit having a primary amino group with high efficiency through the carbonyl group.Type: ApplicationFiled: November 22, 2011Publication date: November 28, 2013Applicants: SUMITOMO BAKELITE CO., LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Shin-Ichiro Nishimura, Takahiko Matsushita, Hideyuki Shimaoka, Wataru Takada, Kohta Igarashi, Midori Abe, Hiroki Abe, Masao Fukushima
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Publication number: 20130196881Abstract: A sugar chain array containing a sugar chain immobilized thereon for detecting binding between an analyte and a sugar chain, and a sugar chain array having the sugar chain immobilized thereon that is capable of inhibiting non-specific adsorption and binding of an analyte without having to coat the array with an adsorption inhibitor. A specific sugar chain is immobilized on the array, and is useful for detecting binding between the sugar chain and an analyte, such as a pathogen of an infectious disease or an excretion thereof. In addition, in the array, when a base material is coated with a polymeric compound having a unit having a primary amino group, a unit for maintaining hydrophilicity, and a unit having a hydrophobic group, the sugar chain is immobilized efficiently and non-specific adsorption and binding of the analyte can be effectively inhibited.Type: ApplicationFiled: July 29, 2011Publication date: August 1, 2013Applicants: National University Corporation Hokkaido University, Sumitomo Bakelite Co., Ltd.Inventors: Shin-Ichiro Nishimura, Takahiko Matsushita, Hideyuki Shimaoka, Wataru Takada, Kohta Igarashi, Midori Abe, Hiroki Abe, Masao Fukushima
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Publication number: 20130071938Abstract: It has been found out that it is possible to increase the ionization efficiency of a sample sugar chain by methylating hydroxyl groups of the sugar chain before MALDI-TOF MS measurement. This enables quantitative and structural analyses on the sample sugar chain with high accuracy.Type: ApplicationFiled: March 17, 2011Publication date: March 21, 2013Applicant: SUMITOMO BAKELITE CO., LTD.Inventors: Hideyuki Shimaoka, Midori Abe, Kohta Igarashi