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公开(公告)号：US20210348097A1
公开(公告)日：2021-11-11
申请号：US17231070
申请日：2021-04-15
Inventor： TAICHI NAKAMURA , NORIHITO TSUKAHARA , KOUJI IKEDA , KIYOTAKA TSUJI
Abstract: A cell culture chip has a stack structure formed by sequentially stacking: a first electrode provided on a main surface of a first board; a first partition wall layer including a first main flow path, and a first inlet flow path and a first outlet flow path connected to the first main flow path; a planar mesh structure sheet used as a scaffolding material for cells; a second partition wall layer including a second main flow path, and a second inlet flow path and a second outlet flow path connected to the second main flow path; and a second electrode provided on a main surface of a second board, in which the planar mesh structure sheet is sandwiched between the first partition wall layer and the second partition wall layer, and, among aperture ratios of a surface of the planar mesh structure sheet facing the first partition wall layer, an aperture ratio of a portion facing the first main flow path is greater than an aperture ratios of portions facing the first inlet flow path and the first outlet flow path, and, among aperture ratios of a surface of the planar mesh structure sheet facing the second partition wall layer, an aperture ratio of a portion facing the second main flow path is greater than an aperture ratios of portions facing the second inlet flow path and the second outlet flow path.
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公开(公告)号：US20190075691A1
公开(公告)日：2019-03-07
申请号：US16084325
申请日：2017-04-04
Inventor： KOUJI IKEDA
Abstract: According to the present disclosure, an electronic component mounting device includes: a mounting head which picks up an electronic component from a part feeder, and transfers and mounts the electronic component on a board; a dispenser which applies a paste to a lower surface of the electronic component picked up by the mounting head, the paste being flied out from an ejection hole of the dispenser against gravity, the ejection hole opening upwardly; and a shield member which is disposed between the electronic component and the dispenser and has an opening above the ejection hole.
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公开(公告)号：US20220372659A1
公开(公告)日：2022-11-24
申请号：US17660643
申请日：2022-04-26
Inventor： TAICHI NAKAMURA , NORIHITO TSUKAHARA , KOUJI IKEDA
Abstract: A device for manufacturing a fiber assembly includes: a rotating body that has a cylindrical shape, and winds and holds a plurality of support sheets around an outer peripheral surface around a rotation axis of the rotating body; a plurality of supply nozzles arranged along a direction parallel to the rotation axis, the supply nozzles supplying a polymer material to be a material of fibers to the plurality of support sheets; a supply nozzle moving unit that relatively moves the plurality of supply nozzles in the direction parallel to the rotation axis of the rotating body, in which the rotating body is rotatable about the rotation axis to wind, on main surfaces of the plurality of support sheets, fibers obtained by naturally cooling or naturally drying the polymer material supplied from the plurality of supply nozzles, and the rotating body includes a plurality of guide members in an annular shape circumscribing the outer peripheral surface of the rotating body concentrically to regulate positions of the plurality of support sheets.
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Patent Agency Ranking
公开(公告)号：US20220341071A1
公开(公告)日：2022-10-27
申请号：US17700961
申请日：2022-03-22
Inventor： TAICHI NAKAMURA , NORIHITO TSUKAHARA , KOUJI IKEDA
Abstract: A fiber assembly includes, on a main surface of a support sheet subjected to a release treatment, a warp yarn group in which a plurality of warp yarns including a polymer material are arranged, and a weft yarn group in which a plurality of weft yarns including a polymer material are arranged. The warp yarn group and the weft yarn group form a plurality of first contact portion regions and a plurality of non-contact portion regions. Each of the plurality of first contact portion regions is a region in which at least one of the plurality of warp yarns is integrated with at least one of the plurality of weft yarns. Each of the plurality of warp yarns has a line width of 1 μm to 10 μm, inclusive, and each of the plurality of weft yarns has a line width of 1 μm to 10 μm, inclusive. At least one of the plurality of first contact portion regions has a fiber density higher than that of at least one of the plurality of non-contact portion regions. Two of the plurality of warp yarns or two of the plurality of weft yarns have a spacing of 5 μm or more and 1000 μm or less in at least one of the plurality of first contact portion regions. Two of the plurality of warp yarns or two of the plurality of weft yarns have a spacing of 2000 μm or more in at least one of the plurality of non-contact portion regions.
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公开(公告)号：US20220073864A1
公开(公告)日：2022-03-10
申请号：US17392423
申请日：2021-08-03
Inventor： NORIHITO TSUKAHARA , TAICHI NAKAMURA , KOUJI IKEDA , KIYOTAKA TSUJI
Abstract: A fiber sheet of the present disclosure includes: a first fiber layer including a plurality of first fibers, the plurality of first fibers comprising a thermoplastic polymer and arranged side by side in a first direction; a second fiber layer including a plurality of second fibers, the plurality of second fibers comprising a thermoplastic polymer and arranged side by side in a second direction intersecting the first direction, and disposed to face the first fiber layer; and a nanofiber layer including nanofibers, the nanofibers comprising any one of a thermoplastic polymer, a thermosetting polymer, a biodegradable polymer, and a biological polymer, the nanofiber layer disposed to be in contact with the first fiber layer and the second fiber layer, in which the nanofiber layer is heat-welded to the first fiber layer and the second fiber layer.
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公开(公告)号：US20210285138A1
公开(公告)日：2021-09-16
申请号：US17198185
申请日：2021-03-10
Inventor： TAICHI NAKAMURA , NORIHITO TSUKAHARA , KOUJI IKEDA , KIYOTAKA TSUJI
Abstract: A fiber mesh sheet is provided, in which the fiber mesh sheet has a mesh structure in which two or more layers of planar fiber arrangement groups are laminated, where, in each of the planar fiber arrangement groups, longitudinal directions of a plurality of fibers made of a polymer material are arranged in a plane along one direction, longitudinal directions of the fibers in one of the fiber arrangement groups intersect those of the fibers in the other fiber arrangement group in two adjacent layers of the fiber arrangement groups at an intersecting angle of 30° or more and 150° or less in a plan view seen from a direction perpendicular to the plane, an upper part of a cross section of the fiber in the fiber arrangement group at a lowermost layer is a substantially circular shape, and a lower part of a cross section of the fiber in the fiber arrangement group at the lowermost layer is a substantially flat shape, where the upper part is a side on which the adjacent fiber arrangement group is present, and the lower part is a side on which the adjacent fiber arrangement group is not present, and a cross section of the fiber in the fiber arrangement group at a layer other than the lowermost layer is a substantially circular shape.
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公开(公告)号：US20190166734A1
公开(公告)日：2019-05-30
申请号：US16098900
申请日：2017-05-25
Inventor： KOUJI IKEDA
IPC: H05K13/04
Abstract: A component-mounting device includes a mounting head, a discharging portion, and a paste receiving portion. The mounting head holds a component. The discharging portion applies paste by spraying to the component held by the mounting head. The paste receiving portion is provided on the mounting head and captures paste that has been discharged from the discharging portion and has failed to reach the component.
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公开(公告)号：US20180015700A1
公开(公告)日：2018-01-18
申请号：US15623912
申请日：2017-06-15
Inventor： KOUJI IKEDA , TAICHI NAKAMURA
CPC classification number: B32B25/20 , B32B5/02 , B32B7/12 , B32B37/0053 , B32B37/025 , B32B37/06 , B32B37/12 , B32B37/153 , B32B2535/00
Abstract: A method for producing a medium includes forming a fiber assembly by discharging a raw material liquid of fibers from a nozzle to generate the fibers and depositing the fibers so as to surround a circumferential surface of a rotatable winder, and transferring the fiber assembly to a base member while rotating the rotatable winder. The circumferential surface of the rotatable winder has a plurality of belt-shaped projection portions extending in a direction along a rotation axis of the rotatable winder.
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