Patents by Inventor Shih-Chi Chen
Shih-Chi Chen 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).
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Publication number: 20250144873Abstract: The present disclosure relates to a method for performing an additive manufacturing operation to form a structure by processing a photopolymer resist material. A laser beam is directed at a tunable mask. At least one emergent beam is collected from a plurality of emergent beams emerging from the tunable mask. The at least one emergent beam is collimated to create a collimated beam. Each emergent beam from the tunable mask has a plurality of beamlets of varying or identical intensity, and each beamlet emerges from a unique subsection or region of the tunable mask. The collimated beam is focused into a laser beam which is projected as an image plane onto or within the photopolymer resist material, such that the same optical path length is created between the tunable mask and the focused image plane for all optical frequencies of the focused laser beam.Type: ApplicationFiled: January 9, 2025Publication date: May 8, 2025Applicant: Lawrence Livermore National Security, LLCInventors: Sourabh Kumar SAHA, Robert Matthew Panas, Shih-Chi Chen
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Publication number: 20250091156Abstract: The present invention teaches an apparatus and method for line-illumination temporal focusing three-dimensional (3D) nano-fabrication, the apparatus and method comprising: a laser source (110) configured to emit a laser beam (111); a line-illumination pattern unit (150) forming a pre-determined line pattern from a line-shaped beam; a data acquisition unit (120) receiving input and transmitting output signals for movement synchronization of multiple devices; an optical imaging device (130) configured to monitor fabrication process in real time; a controller unit (140); and a substrate plane (170).Type: ApplicationFiled: September 14, 2023Publication date: March 20, 2025Inventors: Shih-Chi CHEN, Songyun GU, Qiuyuan ZHONG
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Publication number: 20250044740Abstract: Disclosed is a closed-loop wavefront shaping system, including: a parallel computing module; a task planning module; and a memory management module; wherein the system is implemented on: at least one computing device for generating digital holograms; at least one displaying device for displaying the digital holograms to control an incoming coherent light beam; and at least one sensor for detecting feedback signals.Type: ApplicationFiled: August 2, 2023Publication date: February 6, 2025Inventors: Shih-Chi CHEN, Yintao WANG, Bingxu CHEN
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Patent number: 12208569Abstract: The present disclosure relates to a method for performing an additive manufacturing operation to form a structure by processing a photopolymer resist material. A laser beam is directed at a tunable mask. At least one emergent beam is collected from a plurality of emergent beams emerging from the tunable mask. The at least one emergent beam is collimated to create a collimated beam. Each emergent beam from the tunable mask has a plurality of beam lets of varying or identical intensity, and each beam let emerges from a unique subsection or region of the tunable mask. The collimated beam is focused into a laser beam which is projected as an image plane onto or within the photopolymer resist material, such that the same optical path length is created between the tunable mask and the focused image plane for all optical frequencies of the focused laser beam.Type: GrantFiled: September 18, 2020Date of Patent: January 28, 2025Assignee: Lawrence Livermore National Security, LLCInventors: Sourabh Kumar Saha, Robert Matthew Panas, Shih-Chi Chen
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Publication number: 20240249771Abstract: In this application, a 2D or 3D optical storage and a physical encryption method with ultrahigh storage density are presented. Designed information patterns can be written in an expanded hydrogel via laser patterning, followed by volume shrinkage and dehydration of the hydrogel to achieve physical encryption, ultrahigh storage density, and long-term storage. For decryption, the dehydrated gel is re-expanded, and then immersed in a solution of fluorescent materials to retrieve the stored information via an imaging system.Type: ApplicationFiled: January 19, 2023Publication date: July 25, 2024Inventors: Shih-Chi CHEN, Fei HAN, Songyun GU
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Patent number: 11884009Abstract: The disclosure relates to a method or a platform for hydrogel-based 3D fabrication, wherein the hydrogel is patterned with a programmable femtosecond light sheet with a power density of 0.1 to 100 TW/cm2.Type: GrantFiled: May 10, 2021Date of Patent: January 30, 2024Assignees: The Chinese University of Hong Kong, Carnegie Mellon UniversityInventors: Shih-Chi Chen, Songyun Gu, Fei Han, Yongxin Zhao, Aleksandra Klimas
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Patent number: 11768130Abstract: A microtome comprises a support assembly; an actuator, mounted to the support assembly; a pair of oscillating flexure assemblies, held by the support assembly and each of which being located on one side of the actuator and oscillated by the actuator; and a blade assembly, mounted to each of the oscillating flexure assemblies so as to move in a direction same as the oscillating flexure assemblies.Type: GrantFiled: October 16, 2020Date of Patent: September 26, 2023Assignee: The Chinese University of Hong KongInventors: Shih-Chi Chen, Xinlei Fu, Dapeng Zhang, Jialong Chen
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Patent number: 11718462Abstract: The present invention provides a loading box, which includes a box body, a first groove set, and a first positioning member. The box body includes a base and a side wall protruding from the base along a plurality of sides of the base. The first groove set has a plurality of first grooves, and is disposed on the base along a first side. The first positioning member is arranged corresponding to the first groove set, and includes: a first baffle, detachably inserted into one of the first grooves in the first groove set; and a first supporting arm and a second supporting arm, respectively connected to the first baffle and protruding from the first baffle toward the side wall. One ends of the first supporting arm and the second supporting arm of the first positioning member away from the first baffle are detachably connected to the box body.Type: GrantFiled: March 24, 2022Date of Patent: August 8, 2023Assignee: AU OPTRONICS CORPORATIONInventors: Chih-Chueh Ho, Shih-Chi Chen
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Patent number: 11650550Abstract: In some embodiments, a control system, a control method and a storage medium are provided. In the method, first motion information of a machine acquired by a first sensor is received; the first motion information is inputted into a deep learning model to obtain a model output, the deep learning model comprising a convolutional neural network (CNN) and a long short-term memory (LSTM); the deep learning model is trained using the first motion information and second motion information acquired by a second sensor; the first sensor and the second sensor having different ways of detecting information and processing the detected information. The model output is used to control the machine.Type: GrantFiled: May 22, 2019Date of Patent: May 16, 2023Assignee: The Chinese University of Hong KongInventors: Shih-Chi Chen, XiangBo Liu, Chenglin Li, Xiaogang Wang, Hongsheng Li
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Publication number: 20220324632Abstract: The present invention provides a loading box, which includes a box body, a first groove set, and a first positioning member. The box body includes a base and a side wall protruding from the base along a plurality of sides of the base. The first groove set has a plurality of first grooves, and is disposed on the base along a first side. The first positioning member is arranged corresponding to the first groove set, and includes: a first baffle, detachably inserted into one of the first grooves in the first groove set; and a first supporting arm and a second supporting arm, respectively connected to the first baffle and protruding from the first baffle toward the side wall. One ends of the first supporting arm and the second supporting arm of the first positioning member away from the first baffle are detachably connected to the box body.Type: ApplicationFiled: March 24, 2022Publication date: October 13, 2022Inventors: CHIH-CHUEH HO, SHIH-CHI CHEN
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Publication number: 20220152924Abstract: The disclosure relates to a method or a platform for hydrogel-based 3D fabrication, wherein the hydrogel is patterned with a programmable femtosecond light sheet with a power density of 0.1 to 100 TW/cm2.Type: ApplicationFiled: May 10, 2021Publication date: May 19, 2022Inventors: Shih-Chi Chen, Songyun Gu, Fei Han, Yongxin Zhao, Aleksandra Klimas
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Patent number: 11312067Abstract: An apparatus is disclosed for performing an additive manufacturing operation to form a structure by processing a photopolymer resist material. The apparatus may incorporate a laser for generating a laser beam, and a tunable mask for receiving the laser beam which has an optically dispersive element. The mask splits the laser beam into a plurality of emergent beams each having a subplurality of beamlets of varying or identical intensity, with each beamlet emerging from a unique subsection of illuminated regions of the mask. A collimator collimates at least one of the emergent beams to form a collimated beam. One or more focusing elements focuses the collimated beam into a focused beam which is projected as a focused image plane on or within the resist material. The focused beam simultaneously illuminates a layer of the resist material to process an entire layer in a parallel fashion.Type: GrantFiled: December 29, 2017Date of Patent: April 26, 2022Assignee: Lawrence Livermore National Security, LLCInventors: Sourabh Kumar Saha, Robert Matthew Panas, Shih-Chi Chen
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Publication number: 20220120641Abstract: A microtome comprises a support assembly; an actuator, mounted to the support assembly; a pair of oscillating flexure assemblies, held by the support assembly and each of which being located on one side of the actuator and oscillated by the actuator; and a blade assembly, mounted to each of the oscillating flexure assemblies so as to move in a direction same as the oscillating flexure assemblies.Type: ApplicationFiled: October 16, 2020Publication date: April 21, 2022Inventors: Shih-Chi Chen, Xinlei Fu, Dapeng Zhang, Jialong Chen
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Patent number: 11209329Abstract: A liquid encapsulation device for embedding sensor is provided. The liquid encapsulation device comprises a substrate having an upper surface with a central concave portion; at least one protection layer sealed on the upper surface of the substrate; and at least one sensor fixed on the protection layer. Wherein, the central concave portion is filled with liquid and the sensor is arranged above the central concave portion.Type: GrantFiled: January 25, 2018Date of Patent: December 28, 2021Assignee: The Chinese University of Hong KongInventors: Shih-Chi Chen, Xiangyu Fan, Ni Zhao, Yan Huang, Ningqi Luo
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Patent number: 11150484Abstract: A laser-based manufacturing system is disclosed for fabricating non-planar three-dimensional layers. The system may have a laser for producing a laser beam with a plurality of optical wavelengths. An optically dispersive element may be used for receiving the laser beam and splitting the beam into a plurality of distinct beam components, wherein each beam component has spatially separated optical spectral components. A phase mask may be used which is configured to receive at least one of the beam components emerging from the dispersive element and to create a modified beam. One or more focusing elements may then be used to receive the modified beam emerging from the phase mask and to focus the modified beam into a non-planar light sheet for use in fabricating a part.Type: GrantFiled: May 18, 2018Date of Patent: October 19, 2021Assignee: Lawrence Livermore National Security, LLCInventors: Sourabh Saha, Shih-Chi Chen, Yina Chang
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Patent number: 11094665Abstract: A chip package structure, comprises a first chip having a plurality of first chip joints at a lower side thereof; a circuit board below the first chip; an upper side of the circuit board being arranged with a plurality of circuit board joints; in packaging, the first chip joints being combined with the circuit board joints of the circuit board so that the first chip is combined to the circuit board by a way of ACF combination or convex joint combination; and wherein in the ACF combination, ACFs are used as welding points to be combined to the pads at another end so that the chip is combined to the circuit board; and wherein in the convex pad combination, a convex pad is combined with a flat pad by chemically methods or physical methods; and these pads are arranged on the circuit board and the first chip.Type: GrantFiled: June 15, 2020Date of Patent: August 17, 2021Inventor: Shih-Chi Chen
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Patent number: 10909701Abstract: The present disclosure discloses a method, a data acquisition and image processing system and a non-transitory machine-readable medium for obtaining a super-resolved image of an object. The method comprises: obtaining a plurality of structured images of the object by structured light; determining, from the structured images, modulation information of each structured light that comprises spatial frequency, phase shift and modulation factor; initializing a sample image of the object according the structured images and initializing structured pattern of each structured light by the corresponding modulation information; and restoring the image with improved resolution by adjusting the sample image and the structured pattern iteratively.Type: GrantFiled: June 27, 2019Date of Patent: February 2, 2021Assignee: The Chinese University of Hong KongInventors: Shih-Chi Chen, Yunlong Meng, Jialong Chen
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Patent number: 10910336Abstract: A chip package structure, comprises a first chip having a plurality of first chip joints at a lower side thereof; a circuit board below the first chip; an upper side of the circuit board being arranged with a plurality of circuit board joints; in packaging, the first chip joints being combined with the circuit board joints of the circuit board so that the first chip is combined to the circuit board by a way of ACF combination or convex joint combination; and wherein in the ACF combination, ACFs are used as welding points to be combined to the pads at another end so that the chip is combined to the circuit board; and wherein in the convex pad combination, a convex pad is combined with a flat pad by chemically methods or physical methods; and these pads are arranged on the circuit board and the first chip.Type: GrantFiled: January 29, 2019Date of Patent: February 2, 2021Inventor: Shih-Chi Chen
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Publication number: 20210001540Abstract: The present disclosure relates to a method for performing an additive manufacturing operation to form a structure by processing a photopolymer resist material. A laser beam is directed at a tunable mask. At least one emergent beam is collected from a plurality of emergent beams emerging from the tunable mask. The at least one emergent beam is collimated to create a collimated beam. Each emergent beam from the tunable mask has a plurality of beam lets of varying or identical intensity, and each beam let emerges from a unique subsection or region of the tunable mask. The collimated beam is focused into a laser beam which is projected as an image plane onto or within the photopolymer resist material, such that the same optical path length is created between the tunable mask and the focused image plane for all optical frequencies of the focused laser beam.Type: ApplicationFiled: September 18, 2020Publication date: January 7, 2021Inventors: Sourabh Kumar SAHA, Robert Matthew PANAS, Shih-Chi CHEN
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Patent number: 10884250Abstract: An apparatus and a method for laser beam shaping and scanning. The apparatus includes a digital micromirror device (DMD) including a plurality of micromirrors, configured to receive a first laser beam, adjust an axial position of a focal point of the first laser beam along a moving direction of the first laser beam by controlling a focal length of wavefront of a binary hologram applied to the DMD, and adjust a lateral position of the focal point on a plane perpendicular to the moving direction by controlling a tilted angle of a fringe pattern and a period of fringes of the binary hologram applied to the DMD, wherein the DMD simultaneously functions as programmable binary mask and a blazed grating.Type: GrantFiled: July 29, 2019Date of Patent: January 5, 2021Assignee: The Chinese University of Hong KongInventors: Shih-Chi Chen, Qiang Geng, Dien Wang, Pengfei Chen, Dapeng Zhang