Patents by Inventor Ryo Kuroki
Ryo Kuroki 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: 11945927Abstract: [Problem] An object of the present invention is to provide a foam including a thermoplastic resin and rubber as a main component, in which a micronized product of a cellulose fiber is uniformly dispersed, and uniformity and mechanical properties are excellent. [Solution] A foam includes a modified cellulose fiber (A) covalently bonded with a diene-based polymer, a thermoplastic resin and/or rubber (B), and a diene-based polymer (C) having a functional group capable of covalently bonding with a cellulose fiber, in which the fiber (A) is micronized, the fiber (A) has a content of 0.05 to 20% by mass, and the thermoplastic resin and/or rubber (B) has a glass transition point of ?130° C. to 120° C.Type: GrantFiled: February 26, 2020Date of Patent: April 2, 2024Assignee: SEIKO PMC CORPORATIONInventors: Ryo Miyamori, Daisuke Kuroki, Hideya Sekiguchi, Akihiro Sato
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Patent number: 11837750Abstract: A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.Type: GrantFiled: October 17, 2022Date of Patent: December 5, 2023Assignee: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi, Mitsuko Saito
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Publication number: 20230344078Abstract: A separator for an electricity storage device has a cross-sectional crystal orientation of 0.85 or greater, and/or a method for producing the separator for an electricity storage device comprises a step of using a continuous mixer under conditions with a temperature of 20° C. to 70° C., a shear rate of 100 to 400,000 seconds?1 and a residence time of 1.0 seconds to 60 seconds, for mixing of polyethylene-containing polyolefin powder with a plasticizer to produce a mixed slurry, a step of extruding the mixed slurry and cooling it to solidification to process it into a cast sheet, and a step of biaxially stretching the cast sheet to an area increase factor of 20 to 200.Type: ApplicationFiled: July 3, 2023Publication date: October 26, 2023Applicant: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuichiro Ido, Kensuke Niimura, Tomoki Ishikawa
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Patent number: 11670822Abstract: There is provided a method for producing a separator for an electricity storage device that includes a step of contacting a porous body formed from a silane-modified polyolefin-containing molded sheet with a base solution or acid solution, and a separator for an electricity storage device comprising a microporous film with a melted film rupture temperature of 180° C. to 220° C. as measured by thermomechanical analysis (TMA).Type: GrantFiled: October 11, 2019Date of Patent: June 6, 2023Assignee: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi
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Publication number: 20230117020Abstract: A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.Type: ApplicationFiled: October 17, 2022Publication date: April 20, 2023Applicant: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi, Mitsuko Saito
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Publication number: 20230120715Abstract: A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.Type: ApplicationFiled: October 17, 2022Publication date: April 20, 2023Applicant: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi, Mitsuko Saito
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Publication number: 20230111013Abstract: A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.Type: ApplicationFiled: October 17, 2022Publication date: April 13, 2023Applicant: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi, Mitsuko Saito
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Patent number: 11588208Abstract: A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.Type: GrantFiled: October 11, 2019Date of Patent: February 21, 2023Assignee: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi, Mitsuko Saito
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Publication number: 20230006305Abstract: There is provided a method for producing a separator for an electricity storage device that includes a step of contacting a porous body formed from a silane-modified polyolefin-containing molded sheet with a base solution or acid solution, and a separator for an electricity storage device comprising a microporous film with a melted film rupture temperature of 180° C. to 220° C. as measured by thermomechanical analysis (TMA).Type: ApplicationFiled: June 24, 2022Publication date: January 5, 2023Applicant: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi
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Publication number: 20230006306Abstract: There is provided a method for producing a separator for an electricity storage device that includes a step of contacting a porous body formed from a silane-modified polyolefin-containing molded sheet with a base solution or acid solution, and a separator for an electricity storage device comprising a microporous film with a melted film rupture temperature of 180° C. to 220° C. as measured by thermomechanical analysis (TMA).Type: ApplicationFiled: June 24, 2022Publication date: January 5, 2023Applicant: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi
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Publication number: 20210074983Abstract: A separator for an electricity storage device has a cross-sectional crystal orientation of 0.85 or greater, and/or a method for producing the separator for an electricity storage device comprises a step of using a continuous mixer under conditions with a temperature of 20° C. to 70° C., a shear rate of 100 to 400,000 seconds?1 and a residence time of 1.0 seconds to 60 seconds, for mixing of polyethylene-containing polyolefin powder with a plasticizer to produce a mixed slurry, a step of extruding the mixed slurry and cooling it to solidification to process it into a cast sheet, and a step of biaxially stretching the cast sheet to an area increase factor of 20 to 200.Type: ApplicationFiled: September 25, 2019Publication date: March 11, 2021Applicant: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuichiro Ido, Kensuke Niimura, Tomoki Ishikawa
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Publication number: 20210057701Abstract: There is provided a method for producing a separator for an electricity storage device that includes a step of contacting a porous body formed from a silane-modified polyolefin-containing molded sheet with a base solution or acid solution, and a separator for an electricity storage device comprising a microporous film with a melted film rupture temperature of 180° C. to 220° C. as measured by thermomechanical analysis (TMA).Type: ApplicationFiled: October 11, 2019Publication date: February 25, 2021Applicant: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi
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Publication number: 20200335755Abstract: A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.Type: ApplicationFiled: October 11, 2019Publication date: October 22, 2020Applicant: Asahi Kasei Kabushiki KaishaInventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi, Mitsuko Saito