Patents by Inventor Kenji Matsuyama
Kenji Matsuyama 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: 11959197Abstract: A first aspect of the present invention is carbon fiber wherein the surface of a monofilament has a center line average roughness Ra of 6.0 nm or more and 13 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. A second aspect of the present invention is carbon fiber precursor acrylic fiber wherein the surface of a monofilament has a center line average roughness Ra of 18 nm or more and 27 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. The carbon fiber according to the first aspect is obtained by stabilizing and carbonizing under specific conditions the carbon fiber precursor acrylic fiber according to the second aspect.Type: GrantFiled: August 15, 2019Date of Patent: April 16, 2024Assignee: Mitsubishi Chemical CorporationInventors: Naomasa Matsuyama, Yuutarou Nakamura, Norifumi Hirota, Hiroko Matsumura, Katsuhiko Ikeda, Kouki Wakabayashi, Tadashi Ootani, Akihiro Itou, Kenji Hirano, Akito Hatayama, Kenji Kaneta, Atsushi Nakajima
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Patent number: 11946143Abstract: A laminate comprising a substrate; and a plating-forming layer disposed on at least one surface of both surfaces of the substrate and containing a thermoplastic resin and a plating catalyst, wherein the plating-forming layer further satisfies conditions of the following (1) and/or (2), (1) the plating-forming layer contains a dispersing agent for dispersing the plating catalyst (2) an abundance of the plating catalyst on a surface side of the plating-forming layer is higher than an abundance of the plating catalyst on the substrate side of the plating-forming layer.Type: GrantFiled: September 4, 2019Date of Patent: April 2, 2024Assignee: Arisawa Mfg. Co., Ltd.Inventors: Kenji Nakamura, Yoshihiko Konno, Hiroyuki Matsuyama, Makoto Tai, Shuichi Fujita
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Patent number: 11567076Abstract: The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacteria of mastitis are coliform bacteria or not by using milk of a livestock animal. There is provided a method for lysing coliform bacteria, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of anionic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse coliform bacteria existing in the milk. The lytic enzyme is preferably lysozyme.Type: GrantFiled: June 3, 2019Date of Patent: January 31, 2023Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji Maehana, Kenji Matsuyama
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Patent number: 10908160Abstract: The object is to provide a lysis method and lysis treatment solution for efficiently lysing cells of various Streptococcus bacteria in milk of a livestock animal to release a specific antigen substance contained in the cells for detecting whether causative bacterium of mastitis is a Streptococcus bacterium or not by using the milk, as well as a detection method using an immunochromatographic device. There is provided a method for lysing a Streptococcus bacterium, which comprises the step of mixing a lysis agent containing a lytic enzyme with milk obtained form a livestock animal to lyse a Streptococcus bacterium existing in the milk. The lytic enzyme is preferably at least one selected from the group consisting of lysozyme, labiase, and ?-N-acetylglucosaminidase.Type: GrantFiled: December 3, 2019Date of Patent: February 2, 2021Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Takamitsu Utsumi, Koji Maehana, Kenji Matsuyama
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Patent number: 10732179Abstract: The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacterium of mastitis is a staphylococcus or not by using milk of a livestock animal. There is provided a method for lysing a staphylococcus, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of ampholytic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse a staphylococcus existing in the milk. The lytic enzyme is preferably lysostaphin.Type: GrantFiled: October 18, 2018Date of Patent: August 4, 2020Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji Maehana, Kenji Matsuyama
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Publication number: 20200103405Abstract: The object is to provide a lysis method and lysis treatment solution for efficiently lysing cells of various Streptococcus bacteria in milk of a livestock animal to release a specific antigen substance contained in the cells for detecting whether causative bacterium of mastitis is a Streptococcus bacterium or not by using the milk, as well as a detection method using an immunochromatographic device. There is provided a method for lysing a Streptococcus bacterium, which comprises the step of mixing a lysis agent containing a lytic enzyme with milk obtained form a livestock animal to lyse a Streptococcus bacterium existing in the milk. The lytic enzyme is preferably at least one selected from the group consisting of lysozyme, labiase, and ?-N-acetylglucosaminidase.Type: ApplicationFiled: December 3, 2019Publication date: April 2, 2020Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Takamitsu UTSUMI, Koji MAEHANA, Kenji MATSUYAMA
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Patent number: 10545146Abstract: An immunochromatographic method for detecting a specific substance contained in milk, which comprises (1) the step of contacting the milk with a test strip having a first part retaining a labeled first antibody directed to the specific substance or the specific substance that is labeled, a second part disposed downstream from the first part, on which a second antibody directed to the specific substance is immobilized, and a third part disposed upstream from the first part or the second part and having voids enabling removal of milk fat globules contained in the milk, at the third part or a further upstream part, and (2) the step of flowing the milk up to the second part or a further downstream part to obtain a detectable signal of the label at the second part or a further downstream part.Type: GrantFiled: July 6, 2018Date of Patent: January 28, 2020Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji Maehana, Kenji Matsuyama
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Patent number: 10527616Abstract: The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacterium of mastitis is a staphylococcus or not by using milk of a livestock animal. There is provided a method for lysing a staphylococcus, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of ampholytic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse a staphylococcus existing in the milk. The lytic enzyme is preferably lysostaphin.Type: GrantFiled: November 8, 2018Date of Patent: January 7, 2020Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji Maehana, Kenji Matsuyama
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Patent number: 10527617Abstract: The object is to provide a lysis method and lysis treatment solution for efficiently lysing cells of various Streptococcus bacteria in milk of a livestock animal to release a specific antigen substance contained in the cells for detecting whether causative bacterium of mastitis is a Streptococcus bacterium or not by using the milk, as well as a detection method using an immunochromatographic device. There is provided a method for lysing a Streptococcus bacterium, which comprises the step of mixing a lysis agent containing a lytic enzyme with milk obtained form a livestock animal to lyse a Streptococcus bacterium existing in the milk. The lytic enzyme is preferably at least one selected from the group consisting of lysozyme, labiase, and ?-N-acetylglucosaminidase.Type: GrantFiled: October 31, 2018Date of Patent: January 7, 2020Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Takamitsu Utsumi, Koji Maehana, Kenji Matsuyama
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Publication number: 20190317093Abstract: The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacteria of mastitis are coliform bacteria or not by using milk of a livestock animal. There is provided a method for lysing coliform bacteria, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of anionic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse coliform bacteria existing in the milk. The lytic enzyme is preferably lysozyme.Type: ApplicationFiled: June 3, 2019Publication date: October 17, 2019Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji MAEHANA, Kenji MATSUYAMA
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Patent number: 10345299Abstract: The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacteria of mastitis are coliform bacteria or not by using milk of a livestock animal. There is provided a method for lysing coliform bacteria, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of anionic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse coliform bacteria existing in the milk. The lytic enzyme is preferably lysozyme.Type: GrantFiled: December 17, 2014Date of Patent: July 9, 2019Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji Maehana, Kenji Matsuyama
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Publication number: 20190079089Abstract: The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacterium of mastitis is a staphylococcus or not by using milk of a livestock animal. There is provided a method for lysing a staphylococcus, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of ampholytic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse a staphylococcus existing in the milk. The lytic enzyme is preferably lysostaphin.Type: ApplicationFiled: November 8, 2018Publication date: March 14, 2019Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji MAEHANA, Kenji MATSUYAMA
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Publication number: 20190064163Abstract: The object is to provide a lysis method and lysis treatment solution for efficiently lysing cells of various Streptococcus bacteria in milk of a livestock animal to release a specific antigen substance contained in the cells for detecting whether causative bacterium of mastitis is a Streptococcus bacterium or not by using the milk, as well as a detection method using an immunochromatographic device. There is provided a method for lysing a Streptococcus bacterium, which comprises the step of mixing a lysis agent containing a lytic enzyme with milk obtained form a livestock animal to lyse a Streptococcus bacterium existing in the milk. The lytic enzyme is preferably at least one selected from the group consisting of lysozyme, labiase, and ?-N-acetylglucosaminidase.Type: ApplicationFiled: October 31, 2018Publication date: February 28, 2019Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Takamitsu UTSUMI, Koji MAEHANA, Kenji MATSUYAMA
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Publication number: 20190049446Abstract: The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacterium of mastitis is a staphylococcus or not by using milk of a livestock animal. There is provided a method for lysing a staphylococcus, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of ampholytic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse a staphylococcus existing in the milk. The lytic enzyme is preferably lysostaphin.Type: ApplicationFiled: October 18, 2018Publication date: February 14, 2019Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji MAEHANA, Kenji MATSUYAMA
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Patent number: 10151751Abstract: The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacterium of mastitis is a staphylococcus or not by using milk of a livestock animal. There is provided a method for lysing a staphylococcus, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of ampholytic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse a staphylococcus existing in the milk. The lytic enzyme is preferably lysostaphin.Type: GrantFiled: December 17, 2014Date of Patent: December 11, 2018Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji Maehana, Kenji Matsuyama
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Patent number: 10139409Abstract: The object is to provide a lysis method and lysis treatment solution for efficiently lysing cells of various Streptococcus bacteria in milk of a livestock animal to release a specific antigen substance contained in the cells for detecting whether causative bacterium of mastitis is a Streptococcus bacterium or not by using the milk, as well as a detection method using an immunochromatographic device. There is provided a method for lysing a Streptococcus bacterium, which comprises the step of mixing a lysis agent containing a lytic enzyme with milk obtained form a livestock animal to lyse a Streptococcus bacterium existing in the milk. The lytic enzyme is preferably at least one selected from the group consisting of lysozyme, labiase, and ?-N-acetylglucosaminidase.Type: GrantFiled: December 17, 2014Date of Patent: November 27, 2018Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Takamitsu Utsumi, Koji Maehana, Kenji Matsuyama
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Publication number: 20180321239Abstract: An immunochromatographic method for detecting a specific substance contained in milk, which comprises (1) the step of contacting the milk with a test strip having a first part retaining a labeled first antibody directed to the specific substance or the specific substance that is labeled, a second part disposed downstream from the first part, on which a second antibody directed to the specific substance is immobilized, and a third part disposed upstream from the first part or the second part and having voids enabling removal of milk fat globules contained in the milk, at the third part or a further upstream part, and (2) the step of flowing the milk up to the second part or a further downstream part to obtain a detectable signal of the label at the second part or a further downstream part.Type: ApplicationFiled: July 6, 2018Publication date: November 8, 2018Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji MAEHANA, Kenji MATSUYAMA
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Patent number: 10048262Abstract: An immunochromatographic method for detecting a specific substance contained in milk, which comprises (1) the step of contacting the milk with a test strip having a first part retaining a labeled first antibody directed to the specific substance or the specific substance that is labeled, a second part disposed downstream from the first part, on which a second antibody directed to the specific substance is immobilized, and a third part disposed upstream from the first part or the second part and having voids enabling removal of milk fat globules contained in the milk, at the third part or a further upstream part, and (2) the step of flowing the milk up to the second part or a further downstream part to obtain a detectable signal of the label at the second part or a further downstream part.Type: GrantFiled: June 13, 2012Date of Patent: August 14, 2018Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji Maehana, Kenji Matsuyama
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Publication number: 20160326165Abstract: The present invention provides a hemiacetal ester prodrug of the pyridone carboxylic acid antibacterial drug, wherein the prodrug is characterized in that, (i) it is hydrolyzed promptly after intestinal absorption and regenerates the pyridone carboxylic acid antibacterial drug as a drug substance, (ii) a one-dose package is possible by preventing chelate-formation in intestines in an oral administration, and (iii) the normal bacterial flora of the intestinal bacterial flora is not influenced at all until the ester is absorbed, because the hemiacetal-type esterification is executed on the carboxylic acid which is a center of the antibacterial action, resulting in prevention of the pseudomembranous colitis. The prodrug is an alkoxy carbonyl hemiacetal-type ester represented by the chemical formula (I), which is useful as a prodrug for inhibiting the enteric-bacterium-shift side effect, and can be used in combination with polyvalent metal-containing medicines.Type: ApplicationFiled: December 18, 2014Publication date: November 10, 2016Applicants: KINKI UNIVERSITY, EDUCATIONAL CORPORATION MUKOGAWA GAKUIN, NIPRO CORPORATIONInventors: Kenji MATSUYAMA, Toru OTORI, Tetsutaro KIMACHI
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Publication number: 20160320387Abstract: The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacteria of mastitis are coliform bacteria or not by using milk of a livestock animal. There is provided a method for lysing coliform bacteria, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of anionic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse coliform bacteria existing in the milk. The lytic enzyme is preferably lysozyme.Type: ApplicationFiled: December 17, 2014Publication date: November 3, 2016Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Koji MAEHANA, Kenji MATSUYAMA