Patents by Inventor Takamitsu Utsumi
Takamitsu Utsumi 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: 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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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: 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: 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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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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Patent number: 9485861Abstract: Provided is a prepreg suffering little resin particle fall-off and little resin peeling during prepreg production and during handling in order to have excellent dielectric properties for PPE and favorable adhesiveness. A PPE-containing prepreg constituted of a base material and a curable resin composition including PPE particles, wherein the prepreg is characterized in that (1) PPE extracted from the prepreg using a mixed solvent of toluene and methanol in a mass ratio of 95:5 includes PPE particles (A) insoluble in the mixed solvent, (2) the amount of PPE contained in the PPE particles (A) is 70 mass % or higher, and (3) the number-average molecular weight of the PPE contained in the PPE particles (A) is 8,000-40,000.Type: GrantFiled: August 28, 2014Date of Patent: November 1, 2016Assignee: ASAHI KASEI E-MATERIALS CORPORATIONInventors: Masaaki Endo, Takamitsu Utsumi, Shoji Otani
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Publication number: 20160313328Abstract: 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 17, 2014Publication date: October 27, 2016Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Takamitsu UTSUMI, Koji MAEHANA, Kenji MATSUYAMA
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Patent number: 9258891Abstract: Provided is a prepreg suffering little resin particle fall-off and little resin peeling during prepreg production and during handling in order to have excellent dielectric properties for PPE and favorable adhesiveness. A PPE-containing prepreg constituted of a base material and a curable resin composition including PPE particles, wherein the prepreg is characterized in that (1) PPE extracted from the prepreg using a mixed solvent of toluene and methanol in a mass ratio of 95:5 includes PPE particles (A) insoluble in the mixed solvent, (2) the amount of PPE contained in the PPE particles (A) is 70 mass % or higher, and (3) the number-average molecular weight of the PPE contained in the PPE particles (A) is 8,000-40,000.Type: GrantFiled: March 19, 2013Date of Patent: February 9, 2016Assignee: ASAHI KASEI E-MATERIALS CORPORATIONInventors: Masaaki Endo, Takamitsu Utsumi, Shoji Otani
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Publication number: 20150057413Abstract: Provided is a prepreg suffering little resin particle fall-off and little resin peeling during prepreg production and during handling in order to have excellent dielectric properties for PPE and favorable adhesiveness. A PPE-containing prepreg constituted of a base material and a curable resin composition including PPE particles, wherein the prepreg is characterized in that (1) PPE extracted from the prepreg using a mixed solvent of toluene and methanol in a mass ratio of 95:5 includes PPE particles (A) insoluble in the mixed solvent, (2) the amount of PPE contained in the PPE particles (A) is 70 mass % or higher, and (3) the number-average molecular weight of the PPE contained in the PPE particles (A) is 8,000-40,000.Type: ApplicationFiled: August 28, 2014Publication date: February 26, 2015Inventors: Masaaki ENDO, Takamitsu UTSUMI, Shoji OTANI
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Publication number: 20140127462Abstract: Provided is a prepreg suffering little resin particle fall-off and little resin peeling during prepreg production and during handling in order to have excellent dielectric properties for PPE and favorable adhesiveness. A PPE-containing prepreg constituted of a base material and a curable resin composition including PPE particles, wherein the prepreg is characterized in that (1) PPE extracted from the prepreg using a mixed solvent of toluene and methanol in a mass ratio of 95:5 includes PPE particles (A) insoluble in the mixed solvent, (2) the amount of PPE contained in the PPE particles (A) is 70 mass % or higher, and (3) the number-average molecular weight of the PPE contained in the PPE particles (A) is 8,000-40,000.Type: ApplicationFiled: March 19, 2013Publication date: May 8, 2014Applicant: Asahi Kasei E-Materials CorporationInventors: Masaaki Endo, Takamitsu Utsumi, Shoji Otani
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Patent number: 8703277Abstract: Provided is a curable resin composition which can provide a cured article having a low dielectric constant and a low dielectric tangent, and can also provide a cured article having excellent moldability at ordinary press-molding temperatures, excellent heat resistance and excellent adhesion properties. The present invention provides a curable resin composition containing a polyphenylene ether, wherein the average number of phenolic hydroxy groups is 0.3 or more per molecule of the polyphenylene ether, the resin flow amount of the curable resin composition upon curing is 0.3 to 15% inclusive, and a cured article having a dielectric tangent of 0.005 or less at 1 GHz and a glass transition temperature of 170° C. or higher can be produced.Type: GrantFiled: December 16, 2011Date of Patent: April 22, 2014Assignee: Asahi Kasei E-Materials CorporationInventors: Tetsuji Tokiwa, Takamitsu Utsumi, Masaaki Endo
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Publication number: 20130266779Abstract: Provided is a curable resin composition which can provide a cured article having a low dielectric constant and a low dielectric tangent, and can also provide a cured article having excellent moldability at ordinary press-molding temperatures, excellent heat resistance and excellent adhesion properties. The present invention provides a curable resin composition containing a polyphenylene ether, wherein the average number of phenolic hydroxy groups is 0.3 or more per molecule of the polyphenylene ether, the resin flow amount of the curable resin composition upon curing is 0.3 to 15% inclusive, and a cured article having a dielectric tangent of 0.005 or less at 1 GHz and a glass transition temperature of 170° C. or higher can be produced.Type: ApplicationFiled: December 16, 2011Publication date: October 10, 2013Applicant: ASAHI KASEI E-MATERIALS CORPORATIONInventors: Tetsuji Tokiwa, Takamitsu Utsumi, Masaaki Endo