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公开(公告)号：US11773513B2
公开(公告)日：2023-10-03
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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公开(公告)号：US11745145B2
公开(公告)日：2023-09-05
申请号：US17241838
申请日：2021-04-27
Inventor： Kei Toyota , Norihito Tsukahara
CPC classification number: B01D69/10 , B01D71/30 , B01D71/46 , C07F7/1804 , B01D2311/2649
Abstract: An ion-sensitive substance containing a crown ether structure composed of a repeating unit represented by formula (a): —CR1R2—CR3X—O— . . . (a) (in the formula, X is an organic group having an alkoxysilyl group at a terminal, and R1, R2 and R3 are each a hydrogen atom or a hydrocarbon group), and a part or all of the alkoxysilyl groups in the crown ether structure may be hydrolyzed to form a silanol group.
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3.发明授权公开(公告)号：US09927400B2
公开(公告)日：2018-03-27
申请号：US15350155
申请日：2016-11-14
Inventor： Masahiko Tsukuda , Tomohiro Ota , Takeshi Yamamoto , Norihito Tsukahara
CPC classification number: G01N27/622 , G01N27/624 , H01J49/0031 , H01J49/0422 , H01J49/06
Abstract: The present invention provides a field asymmetric ion mobility spectrometer for selectively separating at least one kind of material from a mixture containing two or more kinds of materials. A filter included in the spectrometry comprises first—four plate-like electrodes each having a principal plane parallel to a direction from an ionizer toward a filter. The second plate-like electrode is located between the first plate-like electrode and the third plate-like electrode. The third plate-like electrode is located between the second plate-like electrode and the fourth plate-like electrode. The third and fourth plate-like electrodes are electrically connected to the first and second plate-like electrodes, respectively. An interspace is formed between two adjacent plate-like electrodes. The present invention provides a field asymmetric ion mobility spectrometer having high separation ability.
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公开(公告)号：US12215448B2
公开(公告)日：2025-02-04
申请号：US17700961
申请日：2022-03-22
Inventor： Taichi Nakamura , Norihito Tsukahara , Kouji Ikeda
Abstract: A fiber assembly includes a support sheet, a warp yarn group in which warp yarns including a polymer material are arranged, and a weft yarn group in which weft yarns including a polymer material are arranged. A surface of the support sheet has been subjected to a release treatment. The warp yarn group and the weft yarn group are on the surface of the support sheet. The warp yarn group and the weft yarn group define contact portion regions and non-contact portion regions. In each of the contact portion regions, one of the warp yarns is integrated with one of the weft yarns. Each of the warp yarns and the weft yarns has a line width of 1 μm to 10 μm, inclusive. One of the contact portion regions has a fiber density which is higher than a fiber density of one of the non-contact portion regions.
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