Patents by Inventor Steven Zhichao SHI
Steven Zhichao SHI 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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Patent number: 12275187Abstract: A three-dimensional (3D) printer and method are provided, including a substrate, a liquid deposition device configured to deposit a liquid dispersion including a suspension of a particulate material in a liquid vehicle, the liquid vehicle including a solvent but devoid of a binder material, onto the substrate to form a non-patterned layer on the substrate, a solvent removal device configured to remove at least a portion of the solvent from the liquid vehicle from the non-patterned layer to form a dried non-patterned layer, and a liquid binder print head configured to deposit a liquid binder onto the dried non-patterned layer to form a printed pattern on the dried non-patterned layer.Type: GrantFiled: April 12, 2022Date of Patent: April 15, 2025Assignee: Sakuu CorporationInventors: Steven Zhichao Shi, Morteza Vatani
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Patent number: 12246485Abstract: A three-dimensional (“3D”) printing system for printing on a substrate, the printing system including a powder distribution device dispensing powder on the substrate and including a blade-shaped end, the blade-shaped end disposed at a height above the substrate; a powder uniformization device located at a distance from the powder distribution device along a direction substantially parallel to a longitudinal axis of the substrate; one or more sensors disposed upstream from the powder uniformization device and configured to determine one or more parameters of a thickness of the dispensed powder at one or more locations; and a control apparatus configured to determine whether the one or more parameters of the thickness is above a predetermined threshold value, and if the one or more parameters is determined to be above the predetermined threshold value, to adjust the powder distribution device.Type: GrantFiled: June 16, 2022Date of Patent: March 11, 2025Assignee: Sakuu CorporationInventors: Morteza Vatani, Siamak Azizi, Seyed Mohammad Sajadi, Steven Zhichao Shi
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Patent number: 12246486Abstract: A three-dimensional (“3D”) printing system for printing on a substrate, the printing system including a plurality of powder feeders, the plurality of powder feeders dispensing a powder on the substrate in a first direction and in a second direction; and a powder uniformization device located adjacent to the plurality of powder feeders, the powder uniformization device rotatable along the substrate in directions opposing the first direction and the second direction.Type: GrantFiled: June 16, 2022Date of Patent: March 11, 2025Assignee: Sakuu CorporationInventors: Steven Zhichao Shi, Morteza Vatani
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Patent number: 12240177Abstract: A method and system for 3D printing for creating at least two discrete sections of powder on a substrate, segmenting the substrate to isolate the at least two discrete sections of powder, compacting the powder on a segment of the substrate, removing loose/non-compacted powder from the segment of the substrate, create a printed/processed layer by performing one or more of a printing process or a processing operation on the segment of substrate, and transferring the printed/processed layers from the segment of substrate to a build platform.Type: GrantFiled: January 13, 2023Date of Patent: March 4, 2025Assignee: Sakuu CorporationInventors: Morteza Vatani, Seyed Mohammad Sajadi, Steven Zhichao Shi, David Paul Wanamaker, Siamak Azizi, Karl Littau
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Publication number: 20240332633Abstract: An electrochemical cell is provided, which includes a cathode comprising a three dimensional (3D) porous cathode structure, an anode, an electrolyte separator, comprised of a ceramic material, located between the cathode and the anode, and a cathode current collector, wherein the cathode is located between the cathode current collector and the electrolyte separator. The 3D porous cathode structure includes ionically conducting electrolyte strands extending through the cathode from the cathode current collector to the electrolyte separator, pores extending through the cathode from the cathode current collector to the electrolyte separator, and an electronically conducting network extending on sidewall surfaces of the pores from the cathode current collector to the electrolyte separator.Type: ApplicationFiled: June 7, 2024Publication date: October 3, 2024Applicant: Sakuu CorporationInventors: Steven Zhichao SHI, Philip Eugene ROGREN
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Patent number: 12034126Abstract: An electrochemical cell is provided, which includes a cathode comprising a three dimensional (3D) porous cathode structure, an anode, an electrolyte separator, comprised of a ceramic material, located between the cathode and the anode, and a cathode current collector, wherein the cathode is located between the cathode current collector and the electrolyte separator. The 3D porous cathode structure includes ionically conducting electrolyte strands extending through the cathode from the cathode current collector to the electrolyte separator, pores extending through the cathode from the cathode current collector to the electrolyte separator, and an electronically conducting network extending on sidewall surfaces of the pores from the cathode current collector to the electrolyte separator.Type: GrantFiled: June 22, 2023Date of Patent: July 9, 2024Assignee: Sakuu CorporationInventors: Steven Zhichao Shi, Philip Eugene Rogren
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Publication number: 20240208138Abstract: A solvent-free powder bed printing process includes depositing a binder-coated powder on a substrate. The binder-coated powder includes a binder that is either thermally curable or a photocurable composition. Optionally, the deposited layer may be densified by a compaction mechanism. A printed pattern is then formed by defined binder curing. This includes selectively curing the binder-coated powder to form a predetermined printed pattern using at least one of heat or light to cure the thermally curable or photocurable composition, respectively. Accordingly, the printed pattern is transferred to a build station or platform. Thus, binder deposition and subsequent drying and solvent recovery in the conventional binder jetting 3D printing have been eliminated. In some embodiments, further processing may occur on the printed pattern layer prior to transferring.Type: ApplicationFiled: December 21, 2023Publication date: June 27, 2024Applicant: Sakuu CorporationInventors: Steven Zhichao SHI, Morteza VATANI
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Publication number: 20240183811Abstract: A wetness sensor, and a method and system using such a sensor, for detecting amounts of a wetting agent in a wetting agent absorbing material, including a sensor device located in contact with the wetting agent absorbing material and configured to monitor a parameter of the wetting agent absorbing material which varies in dependence on an amount of the wetting agent in the wetting agent absorbing material.Type: ApplicationFiled: December 2, 2022Publication date: June 6, 2024Applicant: Sakuu CorporationInventors: Steven Zhichao SHI, Morteza VATANI, Seyed Mohammad SAJADI
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Publication number: 20240113393Abstract: A lithium cell for a lithium metal battery includes: an electrolyte material; a cathode structure arranged on one side of the electrolyte material, the cathode structure including a cathode electrode and a cathode current collector; and an anode structure arranged on an opposite side of the electrolyte material from the cathode structure. The anode structure includes: an anode current collector; a lithium metal anode arranged on a side of the anode current collector arranged facing the electrolyte material; and a protective coating deposited on a surface of the lithium metal anode and arranged facing the electrolyte material, wherein the protective coating extends beyond the lithium metal anode and onto the anode current collector so as to seal both a surface and edge regions of the lithium metal anode from contact with a liquid electrolyte of the electrolyte material.Type: ApplicationFiled: September 20, 2023Publication date: April 4, 2024Applicant: Sakuu CorporationInventors: Tara FOROOZAN, Ali MODJTAHEDI, Joykumar THOKCHOM, Aditya UPRETI, Bobak BAGHERI, Micheal GUO, Steven Zhichao SHI, Arwed NIESTROJ
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Publication number: 20230390995Abstract: A jetted material printing system includes a carrier substrate configured to travel along a longitudinal direction thereof, one or more printheads, each of the one or more printheads being configured to deposit an amount of material onto the carrier substrate to form a printed layer, a liquid removal device located at a first position from the one or more printheads in the longitudinal direction, and a binder conditioning device located downstream from the liquid removal device in the longitudinal direction and over the carrier substrate. A method of jetted material printing includes depositing material from one or more printheads onto a carrier substrate, the material including at least a powder, a binder and a solvent, removing the solvent from the jetted material, and conditioning the jetted material.Type: ApplicationFiled: April 10, 2023Publication date: December 7, 2023Applicant: Sakuu CorporationInventors: Morteza VATANI, Steven Zhichao SHI
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Publication number: 20230390999Abstract: A 3D printing apparatus and method including a powder distributor, located and configured to deposit powder on an upper surface of a build platform, an inkjet printhead to deliver a binder on the deposited powder, a curing to irradiate the delivered binder with radiation, and a mounting apparatus to mount the printhead and the curing unit, wherein one of the mounting apparatus and the build platform is configured to move in first and second directions, wherein the second direction is opposite the first direction, while the other of the mounting apparatus and the build platform remains stationary, and wherein the powder distributor, the printhead and the curing unit operate in synchronization with one another in response to actuation of the powder distributor to begin distributing powder.Type: ApplicationFiled: June 3, 2022Publication date: December 7, 2023Applicant: Sakuu CorporationInventors: Steven Zhichao SHI, Morteza VATANI
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Publication number: 20230352741Abstract: A solid-state electrochemical cell is provided including a first electrode connected to a first current collector, a second electrode connected to a second current collector, a separator interconnecting the first electrode and the second electrode, the separator including a solid-state electrolyte, first oriented pores including a first electrode material formed in the first electrode, and second oriented pores including a second electrode material formed in the second electrode, wherein at least one of the first oriented pores and the second oriented pores includes an electronically conducting network extending on sidewall surfaces thereof from a corresponding one of the first and second current collectors to the electrolyte separator. The second electrode includes a filling aperture including a seal configured to isolate the first electrode from cathode material in the second electrode.Type: ApplicationFiled: July 25, 2022Publication date: November 2, 2023Applicant: Sakuu CorporationInventors: Ali MODJTAHEDI, Steven Zhichao SHI
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Publication number: 20230335802Abstract: An electrochemical cell is provided, which includes a cathode comprising a three dimensional (3D) porous cathode structure, an anode, an electrolyte separator, comprised of a ceramic material, located between the cathode and the anode, and a cathode current collector, wherein the cathode is located between the cathode current collector and the electrolyte separator. The 3D porous cathode structure includes ionically conducting electrolyte strands extending through the cathode from the cathode current collector to the electrolyte separator, pores extending through the cathode from the cathode current collector to the electrolyte separator, and an electronically conducting network extending on sidewall surfaces of the pores from the cathode current collector to the electrolyte separator.Type: ApplicationFiled: June 22, 2023Publication date: October 19, 2023Applicant: Sakuu CorporationInventors: Steven Zhichao SHI, Philip Eugene ROGREN
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Patent number: 11728517Abstract: An electrochemical cell is provided, which includes a cathode comprising a three dimensional (3D) porous cathode structure, an anode, an electrolyte separator, comprised of a ceramic material, located between the cathode and the anode, and a cathode current collector, wherein the cathode is located between the cathode current collector and the electrolyte separator. The 3D porous cathode structure includes ionically conducting electrolyte strands extending through the cathode from the cathode current collector to the electrolyte separator, pores extending through the cathode from the cathode current collector to the electrolyte separator, and an electronically conducting network extending on sidewall surfaces of the pores from the cathode current collector to the electrolyte separator.Type: GrantFiled: November 8, 2022Date of Patent: August 15, 2023Assignee: Sakuu CorporationInventors: Steven Zhichao Shi, Philip Eugene Rogren
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Publication number: 20230226756Abstract: A method and system for 3D printing for creating at least two discrete sections of powder on a substrate, segmenting the substrate to isolate the at least two discrete sections of powder, compacting the powder on a segment of the substrate, removing loose/non-compacted powder from the segment of the substrate, create a printed/processed layer by performing one or more of a printing process or a processing operation on the segment of substrate, and transferring the printed/processed layers from the segment of substrate to a build platform.Type: ApplicationFiled: January 13, 2023Publication date: July 20, 2023Applicant: Sakuu CorporationInventors: Morteza VATANI, Seyed Mohammad SAJADI, Steven Zhichao SHI, David Paul WANAMAKER, Siamak AZIZI, Karl LITTAU
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Publication number: 20230226767Abstract: An in-situ material regeneration method and system are provided that enable recovery, reconditioning and reuse of used build materials, including removed powder and removed liquids, thus increasing material utilization efficiency and reducing manufacturing costs.Type: ApplicationFiled: January 13, 2023Publication date: July 20, 2023Applicant: Sakuu CorporationInventors: Steven Zhichao SHI, Morteza VATANI
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Patent number: 11699814Abstract: An electrochemical cell is provided which includes a cathode, an anode, an electrolyte separator, and an anode current collector located on the anode. The anode is a three-dimensional (3D) porous anode including ionically conducting electrolyte strands and pores which extend through the anode from the anode current collector to the electrolyte separator. The anode also includes electronically conducting networks extending on sidewall surfaces of the pores from the anode current collector to the electrolyte separator.Type: GrantFiled: September 29, 2022Date of Patent: July 11, 2023Assignee: Sakuu CorporationInventors: Steven Zhichao Shi, Philip Eugene Rogren
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Publication number: 20230055465Abstract: An electrochemical cell is provided, which includes a cathode comprising a three dimensional (3D) porous cathode structure, an anode, an electrolyte separator, comprised of a ceramic material, located between the cathode and the anode, and a cathode current collector, wherein the cathode is located between the cathode current collector and the electrolyte separator. The 3D porous cathode structure includes ionically conducting electrolyte strands extending through the cathode from the cathode current collector to the electrolyte separator, pores extending through the cathode from the cathode current collector to the electrolyte separator, and an electronically conducting network extending on sidewall surfaces of the pores from the cathode current collector to the electrolyte separator.Type: ApplicationFiled: November 8, 2022Publication date: February 23, 2023Applicant: Sakuu CorporationInventors: Steven Zhichao SHI, Philip Eugene ROGREN
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Publication number: 20230029367Abstract: An electrochemical cell is provided which includes a cathode, an anode, an electrolyte separator, and an anode current collector located on the anode. The anode is a three-dimensional (3D) porous anode including ionically conducting electrolyte strands and pores which extend through the anode from the anode current collector to the electrolyte separator. The anode also includes electronically conducting networks extending on sidewall surfaces of the pores from the anode current collector to the electrolyte separator.Type: ApplicationFiled: September 29, 2022Publication date: January 26, 2023Applicant: Sakuu CorporationInventors: Steven Zhichao SHI, Philip Eugene ROGREN
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Publication number: 20230013520Abstract: A three-dimensional (“3D”) printing system for printing on a substrate, the printing system including a plurality of powder feeders, the plurality of powder feeders dispensing a powder on the substrate in a first direction and in a second direction; and a powder uniformization device located adjacent to the plurality of powder feeders, the powder uniformization device rotatable along the substrate in directions opposing the first direction and the second direction.Type: ApplicationFiled: June 16, 2022Publication date: January 19, 2023Applicant: Sakuu CorporationInventors: Steven Zhichao SHI, Morteza VATANI