Patents by Inventor Chunjun Ma

Chunjun Ma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12638890
    Abstract: This application provides a rotating mechanism and an electronic device. The rotating mechanism includes a first housing connecting rod, a second housing connecting rod, a primary shaft, a first rotating door plate, a second rotating door plate, and a door plate swing arm. The first rotating door plate and the second rotating door plate are separately fixedly connected to the door plate swing arm. The door plate swing arm is rotatably connected to the primary shaft. The door plate swing arm is movably connected to the first housing, and the door plate swing arm is movably connected to the second housing. The first rotating door plate and the second rotating door plate are configured to support a bending portion of the flexible display screen in a flattened state. In a folded state, the first rotating door plate and the second rotating door plate form a screen accommodating space for accommodating the bending portion of the flexible display screen.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: May 26, 2026
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhengyi Xu, Wenjie Jiang, Yunyong Li, Chunjun Ma, Gangchao Wang, Haoyang Xia
  • Patent number: 12602092
    Abstract: The present disclosure relates to foldable-screen devices and hinge components. An example hinge component includes an elastic component disposed on a support member. A first end of the elastic component presses against a primary shaft mechanism when a rotation mechanism rotates to a flattened state. A second end of the elastic component is connected to the support member when the rotation mechanism rotates to the flattened state. A compression rate of the elastic component when the rotation mechanism rotates to the flattened state is greater than a compression rate of the elastic component when the rotation mechanism rotates to a folded state.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: April 14, 2026
    Assignee: Huawei Technologies Co., LTD.
    Inventors: Hao Wu, WenJie Jiang, Gangchao Wang, Zhengyi Xu, Chunjun Ma, Yunyong Li
  • Publication number: 20260056585
    Abstract: The electronic device includes a folding apparatus and a flexible display. The folding apparatus is configured to bear the flexible display. An elastic component of the folding apparatus may transfer an elastic force to the flexible display by using a housing of the folding apparatus. A force that is away from a main shaft and that is applied to the flexible display when the electronic device is in a flattened state is greater than a force that is away from the main shaft and that is applied to the flexible display when the electronic device is in a closed state.
    Type: Application
    Filed: October 31, 2025
    Publication date: February 26, 2026
    Inventors: Zhengyi Xu, Chunjun Ma, Linhui Niu, Ting Liu, Yunyong Li, Gangchao Wang, Chenghao Guan
  • Publication number: 20260010207
    Abstract: A foldable display terminal and a middle frame used in the foldable display terminal. The foldable display terminal includes a hinge structure, and a first middle frame and a second middle frame that are located on two sides of the hinge structure. An edge of the first middle frame includes a first top surface, an edge of the second middle frame includes a second top surface, the first top surface includes a first protrusion part, and the second top surface includes a second protrusion part. When the foldable display terminal is in a folded state, the first top surface faces the second top surface, a gap exists between the first top surface and the second top surface, the first protrusion part faces the second protrusion part, and a gap exists between the first protrusion part and the second protrusion part.
    Type: Application
    Filed: September 9, 2025
    Publication date: January 8, 2026
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Min Zhang, Leilei Hua, Weifeng Wu, Zheng Li, Wei Shan, Chunjun Ma, Yulin You
  • Patent number: 12500969
    Abstract: A rotating mechanism includes a main shaft assembly, a first fixed bracket, a first transmission arm, a first rotating arm, a second fixed bracket, a second transmission arm, and a second rotating arm. A sliding end of the first transmission arm is slidably connected to the first fixed bracket, a rotating end of the first transmission arm is rotatably connected to the main shaft assembly, one end of the first rotating arm is rotatably connected to the first fixed bracket, and an other end of the first rotating arm is rotatably connected to the main shaft assembly.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: December 16, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhengyi Xu, Chunjun Ma, Linhui Niu, Yunyong Li, Gangchao Wang, Ting Liu
  • Patent number: 12487643
    Abstract: The electronic device includes a folding apparatus and a flexible display. The folding apparatus is configured to bear the flexible display. An elastic component of the folding apparatus may transfer an elastic force to the flexible display by using a housing of the folding apparatus. A force that is away from a main shaft and that is applied to the flexible display when the electronic device is in a flattened state is greater than a force that is away from the main shaft and that is applied to the flexible display when the electronic device is in a closed state.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: December 2, 2025
    Assignees: HUAWEI TECHNOLOGIES CO., LTD., SHANGHAI HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhengyi Xu, Chunjun Ma, Linhui Niu, Ting Liu, Yunyong Li, Gangchao Wang, Chenghao Guan
  • Patent number: 12483642
    Abstract: This application discloses a folding mechanism and an electronic device. The folding mechanism is applied to a housing apparatus of an electronic device, and is configured to connect two housings of the housing apparatus. The folding mechanism can form display accommodating space through automatic avoidance in a folding process, and a flexible display is accommodated in the display accommodating space, so that a folding action performed by the housing apparatus on the flexible display is stable, and a squeezing force is small. This helps reduce a risk that the flexible display is damaged due to excessive squeezing of the folding mechanism, and makes the flexible display more reliable.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: November 25, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ting Liu, Chunjun Ma, Linhui Niu, Zhengyi Xu, Yunyong Li
  • Patent number: 12425500
    Abstract: A rotating mechanism includes a main shaft assembly, a first fixed bracket, a second fixed bracket, a first transmission arm, a first rotating arm, a second transmission arm, and a second rotating arm. One end of the first transmission arm is slidably connected to the second fixed bracket, and the other end of the first transmission arm is a rotating end and is rotatably connected to the main shaft assembly. Two ends of the first rotating arm are rotatably connected to the first transmission arm and the first fixed bracket respectively. One end of the second transmission arm is slidably connected to the first fixed bracket, and the other end of the second transmission arm is rotatably connected to the main shaft assembly. Two ends of the second rotating arm are rotatably connected to the second transmission arm and the second fixed bracket respectively.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: September 23, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhengyi Xu, Chunjun Ma, Linhui Niu, Ting Liu, Gangchao Wang
  • Patent number: 12387629
    Abstract: A display assembly includes a screen assembly, a rigid cover plate, and a supporting member. The screen assembly includes a flexible display and a flexible cover plate which covers the flexible display. An edge of the flexible display has a first extending part and an arc-shaped outer surface of the first extending part. An edge of the flexible cover plate has a second extending part, an inner surface of the second extending part is an arc-shaped surface, the arc-shaped surface of the outer surface of the first extending part matches the arc-shaped surface of the inner surface of the second extending part, and the second extending part covers the first extending part. An edge of the supporting member has a first side surface that is an arc-shaped surface, the arc-shaped surface of the first side surface matches an arc-shaped surface of an inner surface of the first extending part.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: August 12, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chunjun Ma, Jian Xie, Zhangmin Bao, Yin Li, Bo Liu
  • Patent number: 12292763
    Abstract: A rotating mechanism includes: a rotating shaft; a first mechanical part, where the first mechanical part is provided with a first slide groove; a second mechanical part, where the second mechanical part is provided with a second slide groove; a third mechanical part, where the third mechanical part is disposed in the first slide groove, and one end of the third mechanical part is rotatably connected to the rotating shaft; and a fourth mechanical part, where the fourth mechanical part is disposed in the second slide groove, and one end of the fourth mechanical part is rotatably connected to the rotating shaft. When the first mechanical part and the second mechanical part rotate around the rotating shaft, the third mechanical part slides with respect to the first slide groove.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: May 6, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yong Liu, Hideo Kato, Yu Liu, Chunjun Ma, Lexiong Peng, Zhong Li
  • Patent number: 12277005
    Abstract: A rotation mechanism, includes a middle housing (1), a first support (2) and a second support (3), a first end of the first support is rotatably connected to the middle housing, and a second end of the first support is fixedly connected to a first housing; a first end of the second support is rotatably connected to the middle housing, and a second end of the second support is fixedly connected to a second housing.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: April 15, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yunyong Li, Chunjun Ma, Zhengyi Xu, Linhui Niu, Ting Liu, Gangchao Wang
  • Publication number: 20250119635
    Abstract: A camera apparatus includes a bearing member, a first drive assembly, a camera module, a rotating member, and a lifting member. The first drive assembly is mounted on the bearing member, and the rotating member is rotatably disposed on the bearing member. The first drive assembly fits the rotating member, the rotating member fits the lifting member, and the rotating member is configured to drive the lifting member to ascend or descend during rotation. The camera module includes a camera and a second drive assembly, the second drive assembly is connected to the camera, and the second drive assembly is configured to drive the camera to ascend or descend.
    Type: Application
    Filed: December 18, 2024
    Publication date: April 10, 2025
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wen Wu, Chunjun Ma, Yangping Zuo, Bo Wang, Lei Jian, Xiaochen Si, Zhe Liu, Mengruo Zou
  • Patent number: 12250779
    Abstract: A supporting structure that supports a flexible screen includes planar supporting portions and a bending supporting portion. The bending supporting portion includes a bending skeleton and a flexible supporting bar coupled to the bending skeleton, and the flexible supporting bar is in direct contact with the flexible screen. The flexible supporting bar includes a supporting portion and a plurality of connecting portions that are distributed at intervals and fastened to the supporting portion. The supporting portion is coupled to the flexible screen. The connecting portions are located on a side of the supporting portion away from the flexible screen, and an end of each of the plurality of connecting portions away from the supporting portion is coupled to the bending skeleton.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: March 11, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yin Li, Chunjun Ma
  • Publication number: 20240385659
    Abstract: The present disclosure relates to foldable-screen devices and hinge components. An example hinge component includes an elastic component disposed on a support member. A first end of the elastic component presses against a primary shaft mechanism when a rotation mechanism rotates to a flattened state. A second end of the elastic component is connected to the support member when the rotation mechanism rotates to the flattened state. A compression rate of the elastic component when the rotation mechanism rotates to the flattened state is greater than a compression rate of the elastic component when the rotation mechanism rotates to a folded state.
    Type: Application
    Filed: August 10, 2022
    Publication date: November 21, 2024
    Inventors: Hao WU, WenJie JIANG, Gangchao WANG, Zhengyi XU, Chunjun MA, Yunyong LI
  • Patent number: 12150262
    Abstract: A composite structure includes a first layer and a second layer that are stacked, the first layer is configured to connect the second layer and a flexible display, and the second layer is configured to dissipate heat. Each of the first layer and the second layer includes a first surface and a second surface opposite to each other, where the first surface of the first layer is proximate to the flexible display, and the first surface of the second layer is proximate to the second surface of the first layer. An elastic modulus of the first layer is greater than or equal to an elastic modulus of the second layer, and a coefficient of thermal conductivity of the first layer is less than or equal to a coefficient of thermal conductivity of the second layer.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: November 19, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu Zhu, Wei Li, Chunjun Ma
  • Publication number: 20240338058
    Abstract: This application provides a rotating mechanism and an electronic device. The rotating mechanism includes a first housing connecting rod, a second housing connecting rod, a primary shaft, a first rotating door plate, a second rotating door plate, and a door plate swing arm. The first rotating door plate and the second rotating door plate are separately fixedly connected to the door plate swing arm. The door plate swing arm is rotatably connected to the primary shaft. The door plate swing arm is movably connected to the first housing, and the door plate swing arm is movably connected to the second housing. The first rotating door plate and the second rotating door plate are configured to support a bending portion of the flexible display screen in a flattened state. In a folded state, the first rotating door plate and the second rotating door plate form a screen accommodating space for accommodating the bending portion of the flexible display screen.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 10, 2024
    Inventors: Zhengyi Xu, WenJie Jiang, Yunyong Li, Chunjun Ma, Gangchao Wang, Haoyang Xia
  • Patent number: 12066863
    Abstract: A foldable electronic device, including: a foldable screen, where the foldable screen is made of a plurality of layers of materials; and a first housing and a second housing, where the first housing and the second housing are connected by using a folding shaft, traction mechanisms are disposed on the first housing and the second housing, an outermost layer of the foldable screen is fixedly connected to the first housing and the second housing, an innermost layer of the foldable screen is fixedly connected to the traction mechanisms, the traction mechanisms slide on the first housing and the second housing along a first direction, the traction mechanisms are configured to drag the layers of the foldable screen to be dislocated mutually, and the first direction is a direction perpendicular to the folding shaft.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: August 20, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jianbo Ran, Wen Fan, Chunjun Ma, Tao Huang
  • Publication number: 20240069604
    Abstract: The electronic device includes a folding apparatus and a flexible display. The folding apparatus is configured to bear the flexible display. An elastic component of the folding apparatus may transfer an elastic force to the flexible display by using a housing of the folding apparatus. A force that is away from a main shaft and that is applied to the flexible display when the electronic device is in a flattened state is greater than a force that is away from the main shaft and that is applied to the flexible display when the electronic device is in a closed state.
    Type: Application
    Filed: August 10, 2021
    Publication date: February 29, 2024
    Inventors: Zhengyi Xu, Chunjun Ma, Linhui Niu, Ting Liu, Yunyong Li, Gangchao Wang, Chenghao Guan
  • Publication number: 20230403347
    Abstract: This application discloses a folding mechanism and an electronic device. The folding mechanism is applied to a housing apparatus of an electronic device, and is configured to connect two housings of the housing apparatus. The folding mechanism can form display accommodating space through automatic avoidance in a folding process, and a flexible display is accommodated in the display accommodating space, so that a folding action performed by the housing apparatus on the flexible display is stable, and a squeezing force is small. This helps reduce a risk that the flexible display is damaged due to excessive squeezing of the folding mechanism, and makes the flexible display more reliable.
    Type: Application
    Filed: October 27, 2021
    Publication date: December 14, 2023
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ting Liu, Chunjun Ma, Linhui Niu, Zhengyi Xu, Yunyong Li
  • Publication number: 20230229189
    Abstract: A rotation mechanism, includes a middle housing (1), a first support (2) and a second support (3), a first end of the first support is rotatably connected to the middle housing, and a second end of the first support is fixedly connected to a first housing; a first end of the second support is rotatably connected to the middle housing, and a second end of the second support is fixedly connected to a second housing.
    Type: Application
    Filed: June 15, 2021
    Publication date: July 20, 2023
    Inventors: Yunyong Li, Chunjun Ma, Zhengyi Xu, Linhui Niu, Ting Liu, Gangchao Wang