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公开(公告)号：US10680248B2
公开(公告)日：2020-06-09
申请号：US15563013
申请日：2016-04-01
Applicant: SHOWA DENKO K.K.
Inventor： Masatoshi Ichikawa , Keizo Iseki , Gaku Oriji , Kenzo Hanawa
Abstract: An electrode material including a conductive sheet containing carbon nanotubes having an average fiber diameter of 1 μm or less; a liquid inflow member that is formed on a first surface of the conductive sheet such that an electrolyte solution that is passed therethrough flows into the conductive sheet; and a liquid outflow member that is formed on a second surface of the conductive sheet and out of which flows the electrolyte solution that has passed through the conductive sheet; wherein, when using a sheet surface of the conductive sheet as a reference plane, the Darcy permeability, in an in-plane direction, inside the liquid inflow member, is at least 100 times the Darcy permeability, in a normal direction, through the conductive sheet.
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公开(公告)号：US10422021B2
公开(公告)日：2019-09-24
申请号：US15863193
申请日：2018-01-05
Applicant: SHOWA DENKO K.K.
Inventor： Gaku Oriji , Kenzo Hanawa
IPC: H01M8/04 , C22B59/00 , C22B34/22 , C01G31/00 , C22B3/44 , C22B7/02 , C01G31/02 , C22B7/00 , H01M8/18
Abstract: This method for producing a vanadium compound has an alkaline leaching step for immersing incineration ash in an alkaline solution to cause vanadium to leach from the incineration ash into the alkaline solution and obtain a leachate slurry, a solid-liquid separation step for separating the leachate slurry obtained in the alkaline leaching step into a solid and liquid followed by removing insoluble matter to obtain a leachate, a pH adjustment step for adding acid to the leachate following solid-liquid separation to make the leachate acidic, an aging step for aging the leachate following pH adjustment until a precipitate forms in the leachate, and a separation step for separating the precipitate from the leachate following the aging step.
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公开(公告)号：US10008232B2
公开(公告)日：2018-06-26
申请号：US15529614
申请日：2016-06-28
Applicant: SHOWA DENKO K.K.
Inventor： Sho Tonegawa , Masatoshi Ichikawa , Kenzo Hanawa
CPC classification number: G11B9/04 , C01B32/156 , G11B5/65 , G11B5/7315 , G11B5/851 , G11B9/14 , G11B9/149
Abstract: According to the present invention, there is provided a recording medium comprising a substrate, a platinum layer formed on the substrate and having a (111) plane preferentially oriented, and a fullerene single crystal thin film formed on the platinum layer, and configured to be a recording layer, wherein an average value of average surface roughness Ra's with respect to four or more visual fields measured by using an atomic force microscope in a surface of the fullerene thin film is 0.5 nm or less.
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公开(公告)号：US11525032B2
公开(公告)日：2022-12-13
申请号：US16625860
申请日：2018-06-27
Applicant: SHOWA DENKO K.K.
Inventor： Kentaro Watanabe , Yasuyuki Ueda , Kenzo Hanawa
IPC: C08G65/321 , G11B5/84 , C08F299/02 , G11B5/725 , C10M107/38 , C08G65/32 , C08G65/00 , C08G65/337 , C08G65/334 , C10M147/04
Abstract: According to one aspect of the present invention, an organic fluorine compound is represented by a general formula (R-π-E-CH2-A-CH2-E′)n-π′-G (1B) (where n is an integer of 2 to 5, A is a divalent perfluoropolyether group, π is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E and E′ are each independently an ether bond or an ester bond or a group that is represented by a chemical formula —O—CH2CH(OH)CH2O— π′ is a group in which n+1 hydrogen atoms are separated from benzene, G is an organic group containing a fullerene skeleton, the n number of groups each of which is represented by a general formula R-π-E-CH2-A-CH2-E′- may be the same or different, and at least one π among the n number of π is an arylene group).
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公开(公告)号：US10707514B2
公开(公告)日：2020-07-07
申请号：US15883325
申请日：2018-01-30
Applicant: SHOWA DENKO K.K.
Inventor： Kenzo Hanawa , Masatoshi Ichikawa , Gaku Oriji , Irwansyah , Keizo Iseki
IPC: H01M8/00 , H01M8/18 , H01M2/40 , H01M4/94 , H01M8/0234 , H01M8/04186 , H01M4/86
Abstract: A redox flow battery is provided, including an ion-exchange membrane, a current collector plate, and an electrode that is disposed between the ion-exchange membrane and the current collector plate. The electrode includes a main electrode layer in which an electrolytic solution flows from a surface on the current collector plate side to a surface on the ion-exchange membrane side, and the main electrode layer includes a plurality of main electrode pieces which are arranged in parallel in a plane direction.
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Patent Agency Ranking
公开(公告)号：US11043680B2
公开(公告)日：2021-06-22
申请号：US15034372
申请日：2014-11-11
Applicant: SHOWA DENKO K.K.
Inventor： Kenzo Hanawa , Ryuji Monden , Takenori Nishikata
Abstract: A redox flow battery includes: first carbon nanotubes having an average diameter of 100 nm or r core, and second carbon nanotubes having an average diameter of 30 nm or less, in which the second carbon nanotubes are adhered to surfaces of the first carbon nanotubes such that the second carbon nanotubes bridge between the plural first carbon nanotubes. Since the redox flow battery includes an electrode material and an electrode including the electrode material, the electromotive force and the charging capacity are high.
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公开(公告)号：US10790531B2
公开(公告)日：2020-09-29
申请号：US16466588
申请日：2017-12-06
Applicant: SHOWA DENKO K.K.
Inventor： Masatoshi Ichikawa , Keizo Iseki , Kenzo Hanawa
IPC: H01M8/18 , H01M8/026 , H01M8/0289 , H01M8/10
Abstract: This collector plate includes a peripheral edge wall that surrounds a predetermined region, and is provided on at least one surface of the collector plate, in which a surface roughness (Ra) of a first surface which is an exposed surface of the peripheral edge wall on the side of one surface, which is measured along a direction perpendicular to an extension direction of the peripheral edge wall is greater than a surface roughness (Ra) of the first surface which is measured along the extension direction of the peripheral edge wall.
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公开(公告)号：US10727498B2
公开(公告)日：2020-07-28
申请号：US15538308
申请日：2015-12-24
Applicant: SHOWA DENKO K.K.
Inventor： Keizo Iseki , Masatoshi Ichikawa , Gaku Oriji , Kenzo Hanawa
IPC: H01M4/96 , H01M4/86 , H01M8/0202 , H01M8/18
Abstract: A redox flow electrode according to one aspect of the present invention is a redox flow battery electrode disposed between an ion exchange membrane and a bipolar plate, wherein the electrode includes a conductive sheet containing carbon nanotubes having an average fiber diameter of 1 μm or less, and a porous sheet that is laminated to the conductive sheet and is formed from fibers having an average fiber diameter of greater than 1 μm.
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公开(公告)号：US11820862B2
公开(公告)日：2023-11-21
申请号：US16625870
申请日：2018-06-27
Applicant: SHOWA DENKO K.K.
Inventor： Kentaro Watanabe , Yasuyuki Ueda , Kenzo Hanawa
IPC: C08G65/321 , G11B5/84 , C08G65/32 , C08G65/00 , C08G65/337 , C08G65/334 , C10M147/04 , C08F299/02 , G11B5/725 , C10M107/38
CPC classification number: C08G65/321 , C08F299/02 , C08G65/007 , C08G65/32 , C08G65/337 , C08G65/3344 , C10M147/04 , G11B5/7257 , G11B5/84 , G11B5/8408 , C10M107/38
Abstract: According to one aspect of the present invention, an organic fluorine compound is represented by a general formula
(R-π-E-CH2)2-A (1A)
(where A is a divalent perfluoropolyether group, π is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E is an ether bond or an ester bond or a group that is represented by a chemical formula
—O—CH2CH(OH)CH2O—
two groups each of which is represented by a general formula
R-π-E-CH2—
may be the same or different, and at least one n among two π is an arylene group).-
公开(公告)号：US09672857B2
公开(公告)日：2017-06-06
申请号：US14558368
申请日：2014-12-02
Applicant: SHOWA DENKO K.K.
Inventor： Kenzo Hanawa , Tsubasa Okada
IPC: G11B5/66 , G11B5/725 , G11B5/84 , C10M103/02
CPC classification number: G11B5/725 , C10M103/02 , C10M2201/041 , C10N2220/04 , C10N2240/204 , C10N2250/121 , G11B5/8408
Abstract: A lubricant for a magnetic recording medium of the present invention includes an organic compound having a fullerene skeleton, and the organic compound having the fullerene skeleton is expressed by the following general formula (i).
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