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    PRODUCTION METHOD OF A CARBON SHEET
    12.
    发明公开
    PRODUCTION METHOD OF A CARBON SHEET 审中-公开

    公开(公告)号：US20230271835A1

    公开(公告)日：2023-08-31

    申请号：US18303567

    申请日：2023-04-20

    Applicant: ZEON CORPORATION

    Inventor： Tomoko YAMAGISHI ,  Mitsugu UEJIMA

    IPC: C01B32/159

    CPC classification number: C01B32/159 ,  C01P2006/12

    Abstract: Provided is a production method of a carbon sheet having a structure intertwining only carbon nanotubes and having a porosity of 5% to 90%. The method comprises: removing a solvent from a dispersion liquid containing carbon nanotubes, spacer particles, and the solvent to obtain a primary sheet containing the carbon nanotubes and the spacer particles; and removing the spacer particles from the primary sheet. Alternatively, the method comprises: impregnating a porous substrate made from carbon with a dispersion liquid containing carbon nanotubes and a solvent, to obtain a dispersion liquid-impregnated porous substrate; and removing the solvent from the dispersion liquid-impregnated porous substrate. Alternatively, the method comprises: dispersing carbon nanotubes in a solvent to obtain a dispersion liquid, wherein an average bundle diameter of the carbon nanotubes in the dispersion liquid is 0.5 μm or more and 1,000 μm or less; and removing the solvent from the dispersion liquid.

    ROTATION DRIVE MECHANISM
    13.
    发明公开
    ROTATION DRIVE MECHANISM 审中-公开

    公开(公告)号：US20230198427A1

    公开(公告)日：2023-06-22

    申请号：US17997738

    申请日：2021-03-24

    Applicant: Seiki CHIBA ,  Mikio WAKI ,  ZEON CORPORATION

    Inventor： Seiki CHIBA ,  Mikio WAKI ,  Mitsugu UEJIMA ,  Makoto TAKESHITA

    IPC: H02N2/04 ,  H02N2/00

    CPC classification number: H02N2/046 ,  H02N2/006

    Abstract: A rotary drive mechanism comprises: a camshaft having a plurality of cams; and a plurality of transducer units each including a plurality of transducers that each have a dielectric elastomer layer and a pair of electrode layers sandwiching the dielectric elastomer layer. The plurality of transducer units each provide a drive force to a corresponding one of the plurality of cams. The plurality of transducers in one of the transducer units are arranged radially around the corresponding cam. Such a configuration can exert a drive force more efficiently.

    CARBON SHEET
    14.
    发明申请
    CARBON SHEET 有权

    公开(公告)号：US20220185669A1

    公开(公告)日：2022-06-16

    申请号：US17653674

    申请日：2022-03-07

    Applicant: ZEON CORPORATION

    Inventor： Tomoko YAMAGISHI ,  Mitsugu UEJIMA

    IPC: C01B32/159

    Abstract: Provided is a material that has excellent handleability and processability, and that when used as a support for a different material, enables support of the different material up to an inner part thereof. A carbon sheet contains one or more carbon nanotubes and has a porosity of not less than 48% and not more than 90%. The carbon sheet preferably includes: a porous substrate made from carbon; and the carbon nanotubes, attached to the porous substrate. The carbon nanotubes contained in the carbon sheet are preferably single-walled carbon nanotubes. Moreover, the carbon nanotubes contained in the carbon sheet preferably have a nitrogen adsorption specific surface area of 600 m2/g or more.

    DIELECTRIC ELASTOMER POWER GENERATION SYSTEM
    16.
    发明申请
    DIELECTRIC ELASTOMER POWER GENERATION SYSTEM 有权

    公开(公告)号：US20210297013A1

    公开(公告)日：2021-09-23

    申请号：US17264845

    申请日：2019-07-10

    Applicant: Seiki CHIBA ,  Mikio WAKI ,  ZEON CORPORATION

    Inventor： Seiki CHIBA ,  Mikio WAKI ,  Makoto TAKESHITA ,  Mitsugu UEJIMA

    IPC: H02N2/18 ,  H01L41/113

    Abstract: A dielectric elastomer power generation system A1 includes a dielectric elastomer power generation element 3 having a dielectric elastomer layer 31 and a pair of electrode layers 32 sandwiching the dielectric elastomer layer 31. The dielectric elastomer power generation system A1 further includes a piezoelectric element 1 and a multi-stage voltage multiplier/rectifier circuit 2 that boosts and rectifies the voltage generated by the piezoelectric element 1 and applies the resulting voltage as an initial voltage to the dielectric elastomer power generation element 3. This configuration enables the system to be constructed at a lower cost and increase the amount of power generation.

    RUBBER COMPOSITION AND MOLDED PRODUCT
    17.
    发明申请
    RUBBER COMPOSITION AND MOLDED PRODUCT 有权
    橡胶组合物和成型产品

    公开(公告)号：US20150329693A1

    公开(公告)日：2015-11-19

    申请号：US14652908

    申请日：2013-12-18

    Applicant: ZEON CORPORATION

    Inventor： Masahiro SHIGETA ,  The Ban HOANG ,  Mitsugu UEJIMA

    IPC: C08K3/04

    CPC classification number: C08K3/04 ,  C08K3/041 ,  C08K7/24 ,  C08K2201/001 ,  C08K2201/011 ,  C08L9/02

    Abstract: A rubber composition having extremely high electrical conductivity is provided. The rubber composition contains nitrile rubber (A) having an α,β-ethylenic unsaturated nitrile monomer unit and an iodine value of 100 or lower, and carbon nanotubes (B) having the average diameter (Av) and diameter distribution (3σ) that satisfy the following relational expression: 0.60>3σ/Av>0.20.

    Abstract translation: 提供具有极高导电性的橡胶组合物。 橡胶组合物含有具有α，b-烯属不饱和腈单体单元和碘值为100以下的丁腈橡胶（A）和具有平均直径（Av）和直径分布（3＆amp; S）的碳纳米管（B） 满足以下关系式：0.60> 3＆sgr; / Av> 0.20。

    CARBON FILM
    18.
    发明公开
    CARBON FILM 审中-公开

    公开(公告)号：US20230416094A1

    公开(公告)日：2023-12-28

    申请号：US18253390

    申请日：2021-11-30

    Applicant: ZEON CORPORATION

    Inventor： Tomoko YAMAGISHI ,  Mitsugu UEJIMA

    IPC: C01B32/16 ,  G01N15/08

    CPC classification number: C01B32/16 ,  G01N15/0886 ,  C01P2006/17 ,  C01P2004/13 ,  C01P2002/82

    Abstract: A carbon film is formed from carbon nanotube assemblies. In the carbon film, a pore distribution curve indicating the relationship between the pore size and the Log differential pore capacity obtained based on mercury intrusion porosimetry has at least one peak with a log differential pore capacity of 1.0 cm3/g or more within a pore size range of 10 nm or more and 100 μm or less.

    CATALYST, ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY, AND AIR BATTERY
    20.
    发明申请
    CATALYST, ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY, AND AIR BATTERY 有权

    公开(公告)号：US20220181665A1

    公开(公告)日：2022-06-09

    申请号：US17594184

    申请日：2020-04-15

    Applicant: ZEON CORPORATION ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

    Inventor： Naotoshi NAKASHIMA ,  Ganesan PANDIAN ,  Hiroaki SHU ,  Mitsugu UEJIMA

    IPC: H01M8/1004 ,  H01M4/90

    Abstract: Provided is a catalyst that has excellent oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalytic activity and is useful as a catalyst for water electrolysis, an electrode catalyst for an air battery, or the like. The catalyst includes (A) either or both of Ni atoms and Fe atoms, (B) thiourea, and (C) fibrous carbon nanostructures. It is preferable that the catalyst includes (A) Ni atoms and Fe atoms, that the thiourea is coordinated with the Ni atoms and the Fe atoms, and that a mass ratio of the content of a Ni-thiourea coordination compound relative to the content of an Fe-thiourea coordination compound (Ni-thiourea coordination compound/Fe-thiourea coordination compound) is not less than 5/95 and not more than 70/30.

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