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公开(公告)号：US12247103B2
公开(公告)日：2025-03-11
申请号：US17577358
申请日：2022-01-17
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Kosaku Yoshimura , Yasunobu Kashima , Takahiro Ishizuka
IPC: C08G73/10 , B29C67/20 , H01M50/403 , H01M50/414 , H01M50/491 , B29K79/00 , B29K105/00
Abstract: A polyimide precursor solution includes a polyimide precursor having a glass transition temperature Tg of equal to or higher than 300° C. after imidization, an aqueous solvent containing water, an organic amine compound, and resin particles having a volume average particle size of equal to or less than 100 nm.
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公开(公告)号：US12209210B2
公开(公告)日：2025-01-28
申请号：US18240989
申请日：2023-08-31
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Sumiaki Yamasaki , Takahiro Ishizuka , Kiyohiro Yamanaka , Yasunobu Kashima , Satoshi Inoue
IPC: C08F212/08 , C08F2/22 , C08F220/18 , C09J7/38 , G03G9/08 , G03G9/087
Abstract: A method for producing a composite resin particle dispersion includes: performing polymerization A by polymerizing a styrene compound and a vinyl monomer other than the styrene compound to form a styrene-based resin; performing polymerization B by polymerizing a (meth)acrylic acid ester compound in the presence of the styrene-based resin to form intermediate resin particles containing the styrene-based resin and a (meth)acrylic acid ester-based resin; and performing polymerization C by polymerizing a styrene compound and a vinyl monomer other than the styrene compound in the presence of the intermediate resin particles to form composite resin particles. The mass ratio of the styrene-based resin to the (meth)acrylic acid ester-based resin in the composite resin particles is from 80:20 to 20:80. A difference between the lowest glass transition temperature and the highest glass transition temperature in the composite resin particles is 30° C. or more.
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公开(公告)号：US11781044B2
公开(公告)日：2023-10-10
申请号：US17506101
申请日：2021-10-20
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Sumiaki Yamasaki , Takahiro Ishizuka , Kiyohiro Yamanaka , Yasunobu Kashima , Satoshi Inoue
IPC: C09J7/38 , C08F220/18 , C08F2/22 , C08F212/08 , G03G9/08 , G03G9/087
CPC classification number: C09J7/38 , C08F2/22 , C08F212/08 , C08F220/1804 , C08F220/1808 , G03G9/0823 , G03G9/08711 , C09J2301/302 , C09J2301/312 , C09J2425/00 , C09J2433/00
Abstract: A method for producing a composite resin particle dispersion includes: performing polymerization A by polymerizing a styrene compound and a vinyl monomer other than the styrene compound to form a styrene-based resin; performing polymerization B by polymerizing a (meth)acrylic acid ester compound in the presence of the styrene-based resin to form intermediate resin particles containing the styrene-based resin and a (meth)acrylic acid ester-based resin; and performing polymerization C by polymerizing a styrene compound and a vinyl monomer other than the styrene compound in the presence of the intermediate resin particles to form composite resin particles. The mass ratio of the styrene-based resin to the (meth)acrylic acid ester-based resin in the composite resin particles is from 80:20 to 20:80. A difference between the lowest glass transition temperature and the highest glass transition temperature in the composite resin particles is 30° C. or more.
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公开(公告)号：US11211670B2
公开(公告)日：2021-12-28
申请号：US16520844
申请日：2019-07-24
Applicant: FUJIFILM BUSINESS INNOVATION CORP.
Inventor： Hajime Sugahara , Hidekazu Hirose , Tomoya Sasaki , Kosaku Yoshimura , Yasunobu Kashima
IPC: H01M2/16 , H01M50/411 , H01M10/0525 , H01M4/04 , H01M4/133 , H01M10/0562 , H01M4/1391 , H01M4/02
Abstract: An all-solid-state battery includes a positive electrode active material layer containing a positive electrode active material; a negative electrode active material layer containing a negative electrode active material; and a solid electrolyte layer containing a solid electrolyte and a porous polyimide film which holds the solid electrolyte. The porous polyimide film has a void ratio of 60% or more and 80% or less and a pore diameter of 0.1 μm or more and 10 μm or less.
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公开(公告)号：US11680156B2
公开(公告)日：2023-06-20
申请号：US17149724
申请日：2021-01-15
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Yasunobu Kashima , Kosaku Yoshimura , Tomoya Sasaki , Kosuke Nakada , Hidekazu Hirose
CPC classification number: C08L1/10 , C08J5/18 , C08J9/26 , C08L71/02 , C08J2301/10 , C08J2371/02 , C08J2425/06 , C08J2433/12 , C08J2479/08 , C08L2205/03
Abstract: A polyimide precursor-containing aqueous composition contains at least one polymer material selected from the group consisting of a water-insoluble fibrous organic substance and a polyalkylene oxide having a viscosity-average molecular weight of 5 million or more, a polyimide precursor, particles, and water.
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Patent Agency Ranking
公开(公告)号：US11680140B2
公开(公告)日：2023-06-20
申请号：US17146436
申请日：2021-01-11
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Hajime Sugahara , Hidekazu Hirose , Kosaku Yoshimura , Tomoya Sasaki , Yasunobu Kashima , Kosuke Nakada , Tomoyo Okubo
CPC classification number: C08G73/1032 , C08J9/26 , C08J2379/08
Abstract: A particle-dispersed polyimide precursor solution contains: a polyimide precursor consisting of a polymer of a tetracarboxylic dianhydride and a diamine containing a fluorene-based diamine having a fluorene skeleton; particles; and an aqueous solvent containing water.
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公开(公告)号：US11495863B2
公开(公告)日：2022-11-08
申请号：US16853677
申请日：2020-04-20
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Kosuke Nakada , Hidekazu Hirose , Yasunobu Kashima , Kosaku Yoshimura , Tomoya Sasaki
IPC: H01M50/411 , H01M10/0525
Abstract: A porous polyimide film has plural pores, in which an average flattening of the plural pores is within a range of 0.1 to 0.7, a coefficient of variation of a distance between adjacent pores is within a range of 0.10 to 0.40, and a front surface and aback surface communicate with each other through the plural pores.
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公开(公告)号：US11036153B2
公开(公告)日：2021-06-15
申请号：US16742106
申请日：2020-01-14
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Takahiro Ishizuka , Yasunobu Kashima , Hajime Sugahara , Susumu Yoshino
Abstract: A toner set includes a color toner and a transparent toner that has a pressure phase transition property. The color toner and the transparent toner satisfy 1.0≤tan δ1≤4.0 and 1.2≤tan δ1/tan δ2≤3.0 where tan δ1 represents tan δ of the color toner at 100° C., and tan δ2 represents tan δ of the transparent toner at 100° C.
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公开(公告)号：US11584837B2
公开(公告)日：2023-02-21
申请号：US16540060
申请日：2019-08-14
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Yasunobu Kashima , Kosaku Yoshimura , Hajime Sugahara , Hidekazu Hirose
IPC: H01M10/00 , C08J9/00 , H01M10/0525 , H01M50/411
Abstract: There is provided a porous polyimide film in which the pore distribution width A represented by the following formula is 1.15 or less, the average pore diameter is within a range of 0.50 μm to 3.0 μm, and the air permeation speed is 30 seconds or less: A=(D84/D16)1/2 wherein D16 is the pore diameter at 16% cumulation from the small diameter side of pores, and D84 is the pore diameter at 84% cumulation from the small diameter side of pores.
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公开(公告)号：US20220306906A1
公开(公告)日：2022-09-29
申请号：US17506101
申请日：2021-10-20
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Sumiaki Yamasaki , Takahiro Ishizuka , Kiyohiro Yamanaka , Yasunobu Kashima , Satoshi Inoue
Abstract: A method for producing a composite resin particle dispersion includes: performing polymerization A by polymerizing a styrene compound and a vinyl monomer other than the styrene compound to form a styrene-based resin; performing polymerization B by polymerizing a (meth)acrylic acid ester compound in the presence of the styrene-based resin to form intermediate resin particles containing the styrene-based resin and a (meth)acrylic acid ester-based resin; and performing polymerization C by polymerizing a styrene compound and a vinyl monomer other than the styrene compound in the presence of the intermediate resin particles to form composite resin particles. The mass ratio of the styrene-based resin to the (meth)acrylic acid ester-based resin in the composite resin particles is from 80:20 to 20:80. A difference between the lowest glass transition temperature and the highest glass transition temperature in the composite resin particles is 30° C. or more.
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