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公开(公告)号：US20230200013A1
公开(公告)日：2023-06-22
申请号：US17935088
申请日：2022-09-24
Applicant: LENOVO (SINGAPORE) PTE. LTD.
Inventor： Kengo Sano , Masahiro Kitamura , Junki Hashiba , Shusaku Tomizawa
CPC classification number: H05K7/20336 , G06F1/203 , H05K7/20172 , H05K7/20154 , H05K7/20409
Abstract: An electronic apparatus includes: a chassis; a first and a second heat generating elements which are placed with a step between surfaces thereof; and a cooling module that absorbs heat generated by the first and the second heat generating elements. The cooling module has: a first heat pipe having a first surface thereof connected to a surface of the first heat generating element; a plate-shaped vapor chamber having a first surface thereof connected to a surface of the second heat generating element and a second surface of the first heat pipe; a second heat pipe which is connected to a second surface of the vapor chamber and overlaps the second heat generating element; a first fin connected to the first heat pipe; and a second fin connected to the second heat pipe.
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公开(公告)号：US11507176B2
公开(公告)日：2022-11-22
申请号：US17383002
申请日：2021-07-22
Applicant: Lenovo (Singapore) Pte. Ltd.
Inventor： Atsunobu Nakamura , Tsutomu Chonan , Takuroh Kamimura , Masahiro Kitamura
IPC: G06F1/26 , G06F1/32 , G06F1/3287 , G06F1/3206 , G06F1/20
Abstract: An information processing apparatus includes a first processor that takes plural stages of first power control modes different in first rated power from one another, a second processor that takes plural stages of second power control modes different in second rated power from one another, and a power control unit controls the power consumption of the first processor and the power consumption of the second processor. The power control unit determines a second power control mode based on a first event in which a predetermined state of the first processor continues for a first duration or more, and a second event in which a predetermined state of the second processor continues for a second duration or more.
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公开(公告)号：US20220174841A1
公开(公告)日：2022-06-02
申请号：US17447467
申请日：2021-09-13
Applicant: LENOVO (SINGAPORE) PTE. LTD.
Inventor： Masahiro Kitamura , Shogo Akiyama , Takuroh Kamimura , Atsunobu Nakamura
Abstract: An information processing apparatus includes: a first chassis having a first surface provided with at least an air intake port; a second chassis which is connected to the first chassis in a relatively rotatable manner and has a second surface that overlaps the first surface of the first chassis by the rotation; a heat dissipation unit having a fan for replacing air in the first chassis with outside air through at least the air intake port; a state detection unit that detects whether a state is a first state in which the first surface and the second surface overlap; and a control unit which changes control of the fan according to whether the state is the first state.
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公开(公告)号：US10748721B2
公开(公告)日：2020-08-18
申请号：US16027319
申请日：2018-07-04
Applicant: LENOVO (SINGAPORE) PTE. LTD.
Inventor： Masahiro Kitamura , Mitsuo Horiuchi
IPC: H01H13/14 , H01H13/7065 , G06F1/16
Abstract: A push button device can stabilize an operation of a guide mechanism and can enhance product quality. A keyboard device includes the push button device and electronic apparatus includes the keyboard device. A key switch that is a push button device includes a key cap as a push button, a base plate, and a guide mechanism. The guide mechanism includes an outer frame member and an inner member. An outer frame member has a pair of inner surfaces opposed to each other with interposition of an opening in which the inner member is disposed, and each of the pair of inner surfaces is provided with a bearing hole to serve as a first engagement part. The inner member has a pair of outer surfaces opposed to the pair of inner surfaces of the outer frame member, and each of the pair of outer surfaces is provided with a rotation shaft to be a second engagement part. An outer peripheral surface of the rotation shaft has a tapered portion whose outer diameter gradually decreases in an insertion direction of the bearing hole.
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公开(公告)号：US10409334B1
公开(公告)日：2019-09-10
申请号：US16022668
申请日：2018-06-28
Applicant: LENOVO (SINGAPORE) PTE. LTD.
Inventor： Masahiro Kitamura , Mitsuo Horiuchi
Abstract: Embodiments provide a keyboard device having high versatility and high waterproof performance and an electronic device having the keyboard device. A keyboard device has a base plate having a plurality of attachment holes through which a plurality of hook members provided in a body chassis of an electronic device can be passed or with which the plurality of hook members can be engaged in the lower surface, a reflection sheet, which is a sheet-like member covering the lower surface of the base plate, and a plurality of keytops provided on the upper surface of the base plate, in which the reflection sheet is provided with cut lines cut in the thickness direction at positions overlapping with the attachment holes in the vertical direction.
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公开(公告)号：US20180364765A1
公开(公告)日：2018-12-20
申请号：US16013416
申请日：2018-06-20
Applicant: LENOVO (SINGAPORE) PTE. LTD.
Inventor： Masahiro Kitamura , Mitsuo Horiuchi , Satoshi Douzono
IPC: G06F1/16
Abstract: A keyboard device is provided. The keyboard device includes a baseplate, a set of keytops, a frame, and a set of plate members. The set of keytops is supported in a vertically movable manner on an upper surface side of the baseplate. The frame mounted on the upper surface side of the baseplate, and the frame includes a set of openings in which the keytops are inserted in a vertically movable manner. The set of plate members arranged along a longer direction within the baseplate, and bridges that connect adjacent plate members. The adjacent plate members are arranged with a gap provided between end surfaces thereof that, oppose each other and are relatively movable through at least the bridges in a direction in which the plate members are arranged.
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公开(公告)号：US09958907B2
公开(公告)日：2018-05-01
申请号：US15212030
申请日：2016-07-15
Applicant: LENOVO (SINGAPORE) PTE. LTD.
Inventor： Masahiro Kitamura , Mitsuo Horiuchi
IPC: G06F1/16 , G06F3/0354
CPC classification number: G06F1/169 , G06F1/1616 , G06F3/03547 , G06F2203/04105 , H01H2215/03 , H01H2217/02 , H01H2221/062
Abstract: An electronic apparatus having an input device is disclosed. The input device is capable of reducing the sound generated when an operation-input part returns to its original position after being pressed. The input device includes a base plate having a hook standing towards the operation-input part. The operation-input part has an arm member that can come into contact with the hook. A contact of the arm member with the hook specifies an ascending limit of the operation-input part, and at least one of the arm member and the hook has elasticity in their contacting direction to reduce rebound sound.
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公开(公告)号：US20250008696A1
公开(公告)日：2025-01-02
申请号：US18615207
申请日：2024-03-25
Applicant: LENOVO (SINGAPORE) PTE. LTD.
Inventor： Masahiro Kitamura , Junki Hashiba , Takuroh Kamimura , Ryota Watanabe
Abstract: A heat radiation structure includes a metal mesh brought into contact with the surface of a die, and a heat receiving plate configured to sandwich the mesh between the surface of the die and the heat receiving plate. The mesh is impregnated with a liquid metal at least at a portion brought into contact with the surface of the die and has a shape in which intersection points of vertical and horizontal element wires are crushed in a thickness direction of the mesh. The mesh has a flat portion formed on the surface side of the element wire at each intersection point.
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公开(公告)号：US12108561B2
公开(公告)日：2024-10-01
申请号：US17932720
申请日：2022-09-16
Applicant: LENOVO (SINGAPORE) PTE. LTD.
Inventor： Junki Hashiba , Masahiro Kitamura , Shunsuke Mashimo
CPC classification number: H05K7/20145 , G06F1/203 , H05K7/20154 , H05K7/20172 , H05K7/20409
Abstract: An electronic apparatus includes a chassis, a heating element in the chassis, and a cooling module in the chassis to cool the heating element. The cooling module includes: a blower fan; a heat sink having a plurality of fins spaced to have a gap therebetween, a first face with a first gap from the first cover member, and a second face with a second gap from the second cover member; a seal member attached to the first face of the heat sink so as to surround the first face; and a cover sheet attached to a surface of the seal member so as to cover the first face of the heat sink, thus defining a duct between the cover sheet and the first face to let air from the blower fan pass through the duct.
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公开(公告)号：US20240014098A1
公开(公告)日：2024-01-11
申请号：US18332816
申请日：2023-06-12
Applicant: LENOVO (SINGAPORE) PTE. LTD.
Inventor： Ryota Watanabe , Junki Hashiba , Masahiro Kitamura , Takuroh Kamimura
IPC: H01L23/373 , G06F1/20
CPC classification number: H01L23/3733 , G06F1/20
Abstract: A heat radiating structure includes a mesh which abuts on a surface of a die of a GPU and a copper plate which is equipped with a recessed part into which the mesh fits and which sandwiches and holds the mesh together with the surface of the die. The mesh includes a heat generating element abutment range part into which a liquid metal is impregnated and which abuts on the surface of the die and receives heat from the die and a heat generating element non-abutment region part which is contiguous to the heat generating element abutment range part and does not abut on the surface of the die. The heat generating element non-abutment range part is fixed to the copper plate with the use of a sponge tape. The heat generating element abutment range part is shaped to protrude from the heat generating element abutment range part.
