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公开(公告)号：US09903996B2
公开(公告)日：2018-02-27
申请号：US15328009
申请日：2015-06-02
Inventor： Atsushi Fukui , Keizou Matsumura , Takayuki Yamaguchi
CPC classification number: G02B6/0036 , G02B6/00 , G02B6/003 , G02B6/0031 , G02B6/006 , G02B6/0068 , G02B6/0083 , G02B6/0088 , G09F13/14 , G09F13/16 , G09F13/18
Abstract: A light guide plate display device includes a light guide plate, a plurality of light source devices, and a plurality of prisms. The light guide plate includes a display face and a plurality of end faces, and is formed of a light transmitting material. The light source devices are provided along respective end faces of the light guide plate, and radiate light from the end face toward an inside of the light guide plate. The prisms are formed inside the light guide plate. The prisms respectively have a plurality of side faces which face the respective light source devices. The respective side faces are inclined at least in two stages of a transmitting inclined face which transmits light radiated from the light source device, and a reflecting inclined face which reflects the light radiated from the light source device, and outputs the light to the display face, in a thickness direction of the light guide plate.
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公开(公告)号：US12119490B2
公开(公告)日：2024-10-15
申请号：US17263670
申请日：2019-02-21
Inventor： Kosuke Kuroda , Hiroshi Kawada , Atsushi Fukui
CPC classification number: H01M4/525 , C01G53/42 , H01M4/364 , H01M4/366 , H01M4/505 , H01M4/582 , H01M10/0525 , C01P2002/54 , C01P2004/80 , C01P2006/40 , H01M2004/028
Abstract: Provided is a positive electrode active material including a first lithium oxide represented by Li2+xNi1−yA1yO2−zA2z, where −0.5≤x≤0.3, 0≤y≤0.1, and 0≤z≤0.3. Here, at least one of y and z is not 0. A1 includes at least one selected from the group consisting of Ga, Bi, Ba, Y, Sn, Ca, W, and Ta. A2 includes at least one selected from the group consisting of halogen elements and S.
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公开(公告)号：US11567241B2
公开(公告)日：2023-01-31
申请号：US16748199
申请日：2020-01-21
Inventor： Yoshihiko Kanayama , Atsushi Fukui
Abstract: A light projection lens includes: an inner surface which light emitted from a light source enters, and includes a first concave portion; and an outer surface from which the light exits. In a cross section parallel to an optical axis of the light emitted from the light source, the outer surface and the first concave portion have a difference in radius of curvature in at least a portion of the outer surface and the first concave portion. In a cross section perpendicular to the optical axis of the light emitted from the light source, the first concave portion has an elliptical shape. The light which exits from the outer surface is lesser in amount in an optical axis direction of the light emitted from the light source than in a direction different from the optical axis direction.
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公开(公告)号：US20220359871A1
公开(公告)日：2022-11-10
申请号：US17619707
申请日：2020-06-16
Inventor： Kenji Matsubara , Hiroshi Kawada , Atsushi Fukui , Masanobu Takeuchi
IPC: H01M4/583 , H01M10/0525 , H01M10/0562
Abstract: A secondary battery including a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a carbon material electrochemically capable of absorbing and releasing lithium ions, and a solid electrolyte covering at least part of a surface of the carbon material and having lithium ion conductivity. The solid electrolyte includes a first compound represented by a general formula: LixM1Oy, where 0.5
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公开(公告)号：US20220173399A1
公开(公告)日：2022-06-02
申请号：US17439996
申请日：2020-01-15
Inventor： Kenji Matsubara , Nobuhiko Hojo , Masanobu Takeuchi , Atsushi Fukui
IPC: H01M4/62 , H01M10/0568 , H01M4/587 , H01M4/133 , H01M10/0525
Abstract: A secondary battery according to the present invention is provided with a positive electrode, a negative electrode and an electrolyte solution; the electrolyte solution contains water and a lithium salt; the negative electrode contains a negative electrode active material; a silane coupling agent, which is reductively decomposed at a potential that is higher than the reductive decomposition potential of water, is adhered to the surface of the negative electrode active material; and the silane coupling agent contains fluorine as a constituent element.
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Patent Agency Ranking
公开(公告)号：US20220149375A1
公开(公告)日：2022-05-12
申请号：US17438555
申请日：2019-12-04
Inventor： Yasufumi Takahashi , Takayuki Nakatsutsumi , Atsushi Fukui
Abstract: An alkaline dry battery including: a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and an alkaline electrolyte retained in the positive electrode, the negative electrode, and the separator. The negative electrode includes a negative electrode active material containing zinc, and an additive. The additive includes a sulfur-containing cyclic compound.
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公开(公告)号：US11329268B2
公开(公告)日：2022-05-10
申请号：US16497580
申请日：2018-02-14
Inventor： Miyuki Nakai , Yasuyuki Kusumoto , Yusuke Kawahara , Futoshi Tanigawa , Atsushi Fukui
Abstract: A positive electrode, a negative electrode containing lithium, and a nonaqueous electrolyte having lithium ion conductivity are installed. The nonaqueous electrolyte contains a nonaqueous solvent and a solute. The positive electrode contains a positive electrode active material containing at least manganese dioxide, a conductive agent, and a binding agent and further contains an oxide and sulfate of a rare-earth element.
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公开(公告)号：US11063254B2
公开(公告)日：2021-07-13
申请号：US16448562
申请日：2019-06-21
Inventor： Hiroshi Kawada , Atsushi Fukui
IPC: H01M4/36 , H01M4/133 , H01M10/0525 , H01M10/0569 , H01M10/052 , H01M10/0568 , H01M4/66 , H01M4/13 , H01M4/02
Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte having a lithium ion conductivity, and the negative electrode includes a negative electrode collector, a negative electrode active material layer provided on a surface of the negative electrode collector, and a coating film which at least partially covers a surface of the negative electrode active material layer and which has a lithium ion permeability. The coating film contains a lithium compound which contains an element M, an element A, an element F, and lithium; the element M is at least one selected from the group consisting of P, Si, B, V, Nb, W, Ti, Zr, Al, Ba, La, and Ta; and the element A is at least one selected from the group consisting of S, O, N, and Br.
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公开(公告)号：US20210013525A1
公开(公告)日：2021-01-14
申请号：US16982279
申请日：2018-10-29
Inventor： Yasufumi Takahashi , Yasuyuki Kusumoto , Atsushi Fukui
Abstract: An alkaline dry battery includes a battery case, a hollow cylindrical positive electrode accommodated in the battery case, a negative electrode disposed in the hollow portion of the positive electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolytic solution contained in the positive electrode, the negative electrode and the separator. The alkaline dry battery further includes a layer principally including a compound containing a polyoxyethylene group between the positive electrode and the inner surface of the battery case.
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20.发明申请公开(公告)号：US20200251716A1
公开(公告)日：2020-08-06
申请号：US16640239
申请日：2018-07-02
Inventor： Hiroshi Kawada , Atsushi Fukui
Abstract: A positive electrode current collector, a positive electrode active material layer disposed on a surface of the positive electrode current collector, and a first film having lithium-ion permeability are included. The first film contains a lithium-ion permeable oxide X represented by LixM1Oy (0.5≤x
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