Patents by Inventor Jiean WEI

Jiean WEI 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: 12005633
    Abstract: The present disclosure provides a method for photo-curing 4D printing of a multi-layer structure with an adjustable shape recovery speed, and a multi-layer structure printed thereby. The multi-layer structure printed by the method for photo-curing 4D printing of the multi-layer structure with the adjustable shape recovery speed includes a plurality of deformation units sequentially connected in series, and each of the plurality of the deformation units includes two slow layers, a fast layer, and a transition layer; and the fast layer is arranged between the two slow layers, and the transition layer is arranged between at least one of the two slow layers and the fast layer. In the present disclosure, a low cross-linking layer is doped with a nanocarbon light-absorbing material to solve the problem that the low cross-linking layer is prone to over-curing when a high cross-linking layer is printed on the low cross-linking layer.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: June 11, 2024
    Assignee: Jiangsu University
    Inventors: Shu Huang, Hang Zhang, Jianzhong Zhou, Jie Sheng, Jiean Wei, Hongwei Yang, Cheng Wang, Mingyuan Shan
  • Publication number: 20240140023
    Abstract: The present disclosure provides a method for photo-curing 4D printing of a multi-layer structure with an adjustable shape recovery speed, and a multi-layer structure printed thereby. The multi-layer structure printed by the method for photo-curing 4D printing of the multi-layer structure with the adjustable shape recovery speed includes a plurality of deformation units sequentially connected in series, and each of the plurality of the deformation units includes two slow layers, a fast layer, and a transition layer; and the fast layer is arranged between the two slow layers, and the transition layer is arranged between at least one of the two slow layers and the fast layer. In the present disclosure, a low cross-linking layer is doped with a nanocarbon light-absorbing material to solve the problem that the low cross-linking layer is prone to over-curing when a high cross-linking layer is printed on the low cross-linking layer.
    Type: Application
    Filed: December 16, 2022
    Publication date: May 2, 2024
    Applicant: Jiangsu University
    Inventors: Shu HUANG, Hang ZHANG, Jianzhong ZHOU, Jie SHENG, Jiean WEI, Hongwei YANG, Cheng WANG, Mingyuan SHAN
  • Patent number: 11608817
    Abstract: The present invention relates to the field of 4D printing, and particularly to an electro-responsive folding and unfolding composite material for 4D printing, a method for manufacturing the same, and a method for regulating shape memory behavior thereof. In the process of layer-by-layer printing, conductive layers are embedded into a pre-designed shape memory polymer matrix through spray-coating and laser-irradiation nano-fusion welding, to manufacture a folding and unfolding structure with electro-responsive shape memory behavior. The distribution and range of heat affected zones in the electro-responsive shape memory folding and unfolding structure are controlled by adjusting the number of electric heating layers energized and the value of an energizing voltage. The speed of shape recovery and the degree of shape recovery of the structure are regulated according to a magnitude relationship between a shape recovery force Frecovery and a resistance Fresistance to shape recovery of the structure.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: March 21, 2023
    Assignee: Jiangsu University
    Inventors: Shu Huang, Hang Zhang, Mingyuan Shan, Jie Sheng, Jinzhong Lu, Jianzhong Zhou, Jiean Wei, Shuangliu Zhou, Wei Xu
  • Publication number: 20220325702
    Abstract: The present invention relates to the field of 4D printing, and particularly to an electro-responsive folding and unfolding composite material for 4D printing, a method for manufacturing the same, and a method for regulating shape memory behavior thereof. In the process of layer-by-layer printing, conductive layers are embedded into a pre-designed shape memory polymer matrix through spray-coating and laser-irradiation nano-fusion welding, to manufacture a folding and unfolding structure with electro-responsive shape memory behavior. The distribution and range of heat affected zones in the electro-responsive shape memory folding and unfolding structure are controlled by adjusting the number of electric heating layers energized and the value of an energizing voltage. The speed of shape recovery and the degree of shape recovery of the structure are regulated according to a magnitude relationship between a shape recovery force Frecovery and a resistance Fresistance to shape recovery of the structure.
    Type: Application
    Filed: November 5, 2020
    Publication date: October 13, 2022
    Applicant: Jiangsu University
    Inventors: Shu HUANG, Hang ZHANG, Mingyuan SHAN, Jie SHENG, Jinzhong LU, Jianzhong ZHOU, Jiean WEI, Shuangliu ZHOU, Wei XU