Patents by Inventor Chieh-An CHANG

Chieh-An CHANG 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: 12323687
    Abstract: A driving mechanism is provided, including a base, a movable module, and a driving assembly. The movable module has a movable member and a connecting member connected to the movable member. The driving assembly is connected to the base and the connecting member. The driving assembly has a driving element that generates a driving force to the connecting member and the movable member, so that the movable module moves relative to the base.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: June 3, 2025
    Assignee: TDK Corporation
    Inventors: Hsiao-Hsin Hu, Shu-Shan Chen, Chao-Chang Hu, Pai-Jui Cheng, Chieh-An Chang
  • Patent number: 12225276
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a first holder, a fixed portion, a first driving assembly, and a first stopping assembly. The first holder is used for connecting to an optical element. The first holder is movable relative to the fixed portion. The first driving assembly is used for driving the first holder to move relative to the fixed portion. The first stopping assembly is used for restricting the movable range of the first holder relative to the fixed portion.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: February 11, 2025
    Assignee: TDK TAIWAN CORP.
    Inventors: Hsiao-Hsin Hu, Shu-Shan Chen, Chao-Chang Hu, Pai-Jui Cheng, Chieh-An Chang
  • Publication number: 20240377606
    Abstract: An optical module is provided. The optical module includes a fourth immovable part, a fourth movable part, a fourth driving assembly, a first connection element, and a fourth connection element. The fourth movable part is movable relative to the fourth immovable part. The fourth driving assembly drives the fourth movable part to move relative to the fourth immovable part. The fourth driving assembly includes a first dimension piezoelectric element for generating a first dimension driving force and a first dimension transmission element for transmitting the first dimension driving force. The first dimension piezoelectric element is connected to the first dimension transmission element via the first connection element. The first dimension transmission element is connected to the fourth immovable part via the fourth connection element. The Young's modulus of the first connection element is different from the Young's modulus of the fourth connection element.
    Type: Application
    Filed: July 23, 2024
    Publication date: November 14, 2024
    Inventors: Jungsuck RYOO, Chao-Chang HU, Shu-Shan CHEN, Min-Hsiu TSAI, Chieh-An CHANG
  • Publication number: 20240361567
    Abstract: An optical element drive mechanism is provided. The optical element drive mechanism includes an immovable part, a movable part, and a drive assembly. The movable part is connected to an optical element that includes an optical axis. The movable part is movable relative to the immovable part. The drive assembly drives the movable part to move relative to the immovable part.
    Type: Application
    Filed: July 12, 2024
    Publication date: October 31, 2024
    Inventors: Shu-Shan CHEM, Chieh-An CHANG, Pai-Jui CHENG, Chao-Chang HU
  • Patent number: 12078861
    Abstract: An optical system is provided. The optical system includes a second optical module for driving a second optical element. The second optical module includes a second immovable part, a second movable part, a second driving assembly, and a second guiding assembly. The second movable part is used for connected to the second optical element. The second movable part is movable relative to the second immovable part. The second driving assembly is used for driving the second movable part to move relative to the second immovable part. The second guiding assembly is used for guiding the second movable part to move relative to the second immovable part in a first dimension.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: September 3, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Jungsuck Ryoo, Chao-Chang Hu, Shu-Shan Chen, Min-Hsiu Tsai, Chieh-An Chang
  • Patent number: 12066688
    Abstract: An optical element drive mechanism is provided. The optical element drive mechanism includes an immovable part, a movable part, and a drive assembly. The movable part is connected to an optical element that includes an optical axis. The movable part is movable relative to the immovable part. The drive assembly drives the movable part to move relative to the immovable part.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: August 20, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Shu-Shan Chen, Chieh-An Chang, Pai-Jui Cheng, Chao-Chang Hu
  • Patent number: 11994740
    Abstract: An optical element drive mechanism is provided. The optical element drive mechanism includes an immovable part, a movable part, and a drive assembly. The movable part is connected to an optical element that includes an optical axis. The movable part is movable relative to the immovable part. The drive assembly drives the movable part to move relative to the immovable part.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: May 28, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Pai-Jui Cheng, Shu-Shan Chen, Chieh-An Chang, Chao-Chang Hu
  • Patent number: 11867969
    Abstract: An optical element driving mechanism has an optical axis and includes a fixed portion, a movable portion, and a driving assembly. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The driving assembly moves in a first direction to move the movable portion in a second direction, wherein the first direction is different from the second direction.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: January 9, 2024
    Assignee: TDK TAIWAN CORP.
    Inventors: Jungsuck Ryoo, Chieh-An Chang, Min-Hsiu Tsai, Chao-Chang Hu, Shu-Shan Chen, Pai-Jui Cheng, Chao-Hsi Wang
  • Patent number: 11809013
    Abstract: An optical system is provided. The optical system includes a first optical module. The first optical module includes a fixed portion, a movable portion, a driving assembly, and a circuit assembly. The movable portion is movably connected to the fixed portion, and the movable portion is used to connect to an optical element. The driving assembly is used to drive the movable portion to move relative to the fixed portion. The circuit assembly is electrically connected to the driving assembly.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: November 7, 2023
    Assignee: TDK TAIWAN CORP.
    Inventors: Jungsuck Ryoo, Pai-Jui Cheng, Chao-Chang Hu, Min-Hsiu Tsai, Shu-Shan Chen, Chieh-An Chang
  • Publication number: 20230266557
    Abstract: An optical system is provided. The optical system includes a second optical module for driving a second optical element. The second optical module includes a second immovable part, a second movable part, a second driving assembly, and a second guiding assembly. The second movable part is used for connected to the second optical element. The second movable part is movable relative to the second immovable part. The second driving assembly is used for driving the second movable part to move relative to the second immovable part. The second guiding assembly is used for guiding the second movable part to move relative to the second immovable part in a first dimension.
    Type: Application
    Filed: December 7, 2022
    Publication date: August 24, 2023
    Inventors: Jungsuck RYOO, Chao-Chang HU, Shu-Shan CHEN, Min-Hsiu TSAI, Chieh-An CHANG
  • Publication number: 20230236386
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed assembly, a movable part, a driving assembly, and a coupling assembly. The movable part is configured to be connected to an optical element. The movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the movable part to move relative to the fixed assembly. The movable part is movable relative to the fixed assembly by the coupling assembly.
    Type: Application
    Filed: January 18, 2023
    Publication date: July 27, 2023
    Inventors: Pai-Jui CHENG, Shu-Shan CHEN, Hsiao-Hsin HU, Chieh-An CHANG
  • Publication number: 20230225211
    Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, and a driving assembly. The movable assembly is configured to be connected to an optical element and is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move along a first axis relative to the fixed assembly.
    Type: Application
    Filed: January 9, 2023
    Publication date: July 13, 2023
    Inventors: Shu-Shan CHEN, Chao-Chang HU, Pai-Jui CHENG, Hsiao-Hsin HU, Chieh-An CHANG
  • Publication number: 20230221520
    Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, and a driving assembly. The movable assembly is configured to be connected to an optical element and is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move along a first axis relative to the fixed assembly.
    Type: Application
    Filed: January 9, 2023
    Publication date: July 13, 2023
    Inventors: Shu-Shan CHEN, Chao-Chang HU, Pai-Jui CHENG, Hsiao-Hsin HU, Chieh-An CHANG
  • Publication number: 20230204829
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed assembly, a movable part, and a driving assembly. The movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the movable part to move relative to the fixed assembly. The optical element driving mechanism further includes a holding assembly, and the driving assembly drives the movable part to move relative to the fixed assembly by the holding assembly.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 29, 2023
    Inventors: Hsiao-Hsin HU, Shu-Shan CHEN, Chao-Chang HU, Pai-Jui CHENG, Chieh-An CHANG
  • Patent number: 11561360
    Abstract: An optical system is provided. The optical system includes a first optical module. The first optical module includes a first fixed portion, a first movable portion, a first driving assembly, and a circuit assembly. The first movable portion is used for connecting to a first optical element, and the first movable portion is movably connected to the fixed portion. The first driving assembly is used for driving the first movable portion to move relative to the first fixed portion. The circuit assembly is electrically connected to the first driving assembly.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: January 24, 2023
    Assignee: TDK TAIWAN CORP.
    Inventors: Jungsuck Ryoo, Pai-Jui Cheng, Chao-Chang Hu, Min-Hsiu Tsai, Shu-Shan Chen, Chieh-An Chang
  • Patent number: 11550112
    Abstract: An optical system is provided. The optical system includes a first optical module and a second optical module. The first optical module is used for connected to a first optical element. The second optical module is used for connected to a second optical element. A light enters the first optical module along an incident direction, and the light is adjusted by the first optical module to enter the second optical module along a first direction. The incident direction is not parallel with the first direction.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 10, 2023
    Assignee: TDK TAIWAN CORP.
    Inventors: Jungsuck Ryoo, Chao-Chang Hu, Shu-Shan Chen, Min-Hsiu Tsai, Chieh-An Chang
  • Publication number: 20220397737
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a first holder, a fixed portion, a first driving assembly, and a first stopping assembly. The first holder is used for connecting to an optical element. The first holder is movable relative to the fixed portion. The first driving assembly is used for driving the first holder to move relative to the fixed portion. The first stopping assembly is used for restricting the movable range of the first holder relative to the fixed portion.
    Type: Application
    Filed: January 25, 2022
    Publication date: December 15, 2022
    Inventors: Hsiao-Hsin HU, Shu-Shan CHEN, Chao-Chang HU, Pai-Jui CHENG, Chieh-An CHANG
  • Publication number: 20220399486
    Abstract: A driving mechanism is provided, including a base, a movable module, and a driving assembly. The movable module has a movable member and a connecting member connected to the movable member. The driving assembly is connected to the base and the connecting member. The driving assembly has a driving element that generates a driving force to the connecting member and the movable member, so that the movable module moves relative to the base.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 15, 2022
    Inventors: Hsiao-Hsin HU, Shu-Shan CHEN, Chao-Chang HU, Pai-Jui CHENG, Chieh-An CHANG
  • Publication number: 20220357555
    Abstract: An optical system is provided in the present disclosure, including a fixed portion, a first movable portion, a first driving assembly, a second movable portion, and a second driving assembly. The first movable portion is connected to a first optical element. The first movable portion is movable relative to the fixed portion. The first driving assembly drives the first movable portion to move relative to the fixed portion. The second movable portion is connected to a second optical element. The second movable portion is movable relative to the fixed portion and the first movable portion. The second driving assembly drives the second movable portion to move relative to the fixed portion. The first driving assembly provides a first driving force via a first piezoelectric unit. The first movable portion is driven by the first driving force to move relative to the fixed portion.
    Type: Application
    Filed: May 9, 2022
    Publication date: November 10, 2022
    Inventors: Pai-Jui CHENG, Chao-Chang HU, Shu-Shan CHEN, Hsiao-Hsin HU, Chieh-An CHANG
  • Publication number: 20220308357
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a movable portion, a driving assembly, and a first weighting element. The movable portion is arranged with the fixed portion in a main axis, and the movable portion is movable relative to the fixed portion. The driving assembly is used for driving the movable portion to move relative to the fixed portion. The first weighting element is disposed on the driving assembly for stabilizing the driving assembly.
    Type: Application
    Filed: March 28, 2022
    Publication date: September 29, 2022
    Inventors: Shu-Shan CHEN, Pai-Jui CHENG, Chieh-An CHANG, Hsiao-Hsin HU, Chao-Chang HU