Patents by Inventor Chang-Jun Bae
Chang-Jun Bae 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: 20240177975Abstract: A cooling plate and a plasma processing chamber are proposed. The cooling plate is configured to allow air to flow throughout the entire region of a window while reducing a region of covering the window. The cooling plate is configured to cool a window configured to seal a plasma processing space at an upper portion, and the cooling plate includes a body having a circular plate shape covering a part of a center region of the window, an inlet through which a gas is introduced into the body, and an outlet through which the gas is discharged from the body to the window. A flow path through which the gas flows and a slope formed from the flow path toward the window are formed between the inlet and the outlet.Type: ApplicationFiled: September 26, 2023Publication date: May 30, 2024Applicant: SEMES CO., LTD.Inventors: Yong Jun BAE, Seung Pyo LEE, Dong Jun PARK, Chang Eon PARK, Su Won KIM, Dho Young KIM
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Publication number: 20240113852Abstract: A wireless communication system, according to one embodiment of the present invention, comprises: a first communication module; and at least one second communication module wirelessly connected to the first communication module, wherein the first communication module is wirelessly connected to the second communication module to which driving power is applied from the same power source as that of the first communication module.Type: ApplicationFiled: February 10, 2022Publication date: April 4, 2024Inventors: Chang Hoon YOO, Sung Jun BAE, Jeong Hyeon SON, Seung Taek WOO, So Yeon HAM
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Patent number: 10777855Abstract: A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.Type: GrantFiled: September 3, 2019Date of Patent: September 15, 2020Assignee: Palo Alto Research Center IncorporatedInventors: Ajay Raghavan, Peter Kiesel, Lars Wilko Sommer, Bhaskar Saha, Saroj Sahu, Alexander Lochbaum, Tobias Staudt, Chang-Jun Bae, Mohamed Alamgir, Hoe Jin Hah, Bokkyu Choi, Gyu-Ok Hwang, Geun-Chang Chung
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Publication number: 20200006818Abstract: A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.Type: ApplicationFiled: September 3, 2019Publication date: January 2, 2020Inventors: Ajay Raghavan, Peter Kiesel, Lars Wilko Sommer, Bhaskar Saha, Saroj Sahu, Alexander Lochbaum, Tobias Staudt, Chang-Jun Bae, Mohamed Alamgir, Hoe Jin Hah, Bokkyu Choi, Gyu-Ok Hwang, Geun-Chang Chung
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Patent number: 10446886Abstract: A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.Type: GrantFiled: July 23, 2014Date of Patent: October 15, 2019Assignee: Palo Alto Research Center IncorporatedInventors: Ajay Raghavan, Peter Kiesel, Lars Wilko Sommer, Bhaskar Saha, Saroj Sahu, Alexander Lochbaum, Tobias Staudt, Chang-Jun Bae, Mohamed Alamgir, Hoe Jin Hah, Bokkyu Choi, Gyu-Ok Hwang, Geun-Chang Chung
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Patent number: 10403922Abstract: A method of fabricating an electrochemical energy storage cell such as a battery or supercapacitor involves positioning a portion of a fiber optic cable that includes at least one optical fiber sensor over a current collector layer. The electrode material of the energy storage cell is deposited over the current collector layer and the fiber optic cable.Type: GrantFiled: July 23, 2014Date of Patent: September 3, 2019Assignee: Palo Alto Research Center IncorporatedInventors: Chang-Jun Bae, Eric J. Shrader, Ajay Raghavan, Peter Kiesel, Saroj Sahu
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Patent number: 10256503Abstract: A battery has a lithium anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of a first and second material, wherein the first material contains sulfur and the second material comprises a solid electrolyte.Type: GrantFiled: July 11, 2014Date of Patent: April 9, 2019Assignee: Palo Alto Research Center IncorporatedInventors: Chang-Jun Bae, Ranjeet Rao, Eric J. Shrader
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Patent number: 10164242Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.Type: GrantFiled: May 19, 2015Date of Patent: December 25, 2018Assignees: Massachusetts Institute of Technology, The Regents of the University of Michigan, The Regents of the University of CaliforniaInventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
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Patent number: 10115964Abstract: An electrode has a first set of stripes of a graphite-containing material, and a second set of stripes of silicon-containing material interdigitated with the first set of stripes. A method of manufacturing an electrode includes extruding first and second materials simultaneously onto a substrate in interdigitated stripes, wherein the first material comprises a graphite-containing material and the second material comprises a silicon-containing material.Type: GrantFiled: December 8, 2014Date of Patent: October 30, 2018Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Chang-Jun Bae, Eric J. Shrader, Jessy Rivest
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Patent number: 10103381Abstract: An electrode having a first set of stripes of sulfur-containing materials forming electroactive regions and a second set of stripes of a material forming non-electroactive regions interdigitated with the first set of stripes.Type: GrantFiled: October 10, 2014Date of Patent: October 16, 2018Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Chang-Jun Bae, Eric J. Shrader, Ranjeet Rao
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Patent number: 9882200Abstract: A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of two different types, one of the types forming pore channels or porous structure and one of the types being more compressible than others type.Type: GrantFiled: July 31, 2014Date of Patent: January 30, 2018Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Chang-Jun Bae, Eric J. Shrader, Ashish Manandhar
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Patent number: 9793537Abstract: A three dimensional electrode structure having a first layer of interdigitated stripes of material oriented in a first direction, and a second layer of interdigitated stripes of material oriented in a second direction residing on the first layer of interdigitated stripes of material. A method of manufacturing a three dimensional electrode structure includes depositing a first layer of interdigitated stripes of an active material and an intermediate material on a substrate in a first direction, and depositing a second layer of interdigitated stripes of the active material and the intermediate material on the first layer in a second direction orthogonal to the first direction.Type: GrantFiled: February 17, 2017Date of Patent: October 17, 2017Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Corie Lynn Cobb, Chang-Jun Bae
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Publication number: 20170162858Abstract: A three dimensional electrode structure having a first layer of interdigitated stripes of material oriented in a first direction, and a second layer of interdigitated stripes of material oriented in a second direction residing on the first layer of interdigitated stripes of material. A method of manufacturing a three dimensional electrode structure includes depositing a first layer of interdigitated stripes of an active material and an intermediate material on a substrate in a first direction, and depositing a second layer of interdigitated stripes of the active material and the intermediate material on the first layer in a second direction orthogonal to the first direction.Type: ApplicationFiled: February 17, 2017Publication date: June 8, 2017Inventors: CORIE LYNN COBB, CHANG-JUN BAE
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Patent number: 9590232Abstract: A three dimensional electrode structure having a first layer of interdigitated stripes of material oriented in a first direction, and a second layer of interdigitated stripes of material oriented in a second direction residing on the first layer of interdigitated stripes of material. A method of manufacturing a three dimensional electrode structure includes depositing a first layer of interdigitated stripes of an active material and an intermediate material on a substrate in a first direction, and depositing a second layer of interdigitated stripes of the active material and the intermediate material on the first layer in a second direction orthogonal to the first direction.Type: GrantFiled: December 27, 2012Date of Patent: March 7, 2017Assignee: Palo Alto Research Center IncorporatedInventors: Corie Lynn Cobb, Chang-Jun Bae
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Publication number: 20160365557Abstract: An electrochemical separator film includes a polymer, and particles of a first inorganic material having a first particle size suspended in the polymer. An electrochemical cell structure, includes at least one electrode on a substrate, and a separator film residing on top of the electrode, wherein the separator film comprises a polymer, and particles of a first inorganic material having a first particle size suspended in the polymer. A method of manufacturing a separator film, includes combining a polymer with a solvent for the polymer to form a polymer solution, mixing particles of a first inorganic material with the polymer, the particles having a first particle size to produce a separator mixture, depositing the separator mixture onto a substrate, and drying the separator mixture until the solvent and non-solvent are no longer present forming the separator film.Type: ApplicationFiled: June 9, 2015Publication date: December 15, 2016Inventors: RANJEET RAO, CHANG-JUN BAE, SCOTT E. SOLBERG
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Publication number: 20160164079Abstract: An electrode has a first set of stripes of a graphite-containing material, and a second set of stripes of silicon-containing material interdigitated with the first set of stripes. A method of manufacturing an electrode includes extruding first and second materials simultaneously onto a substrate in interdigitated stripes, wherein the first material comprises a graphite-containing material and the second material comprises a silicon-containing material.Type: ApplicationFiled: December 8, 2014Publication date: June 9, 2016Inventors: CHANG-JUN BAE, ERIC J. SHRADER, JESSY RIVEST
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Publication number: 20160104881Abstract: An electrode having a first set of stripes of sulfur-containing materials forming electroactive regions and a second set of stripes of a material forming non-electroactive regions interdigitated with the first set of stripes.Type: ApplicationFiled: October 10, 2014Publication date: April 14, 2016Inventors: CHANG-JUN BAE, ERIC J. SHRADER, RANJEET RAO
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Publication number: 20160036047Abstract: A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of two different types, one of the types forming pore channels or porous structure and one of the types being more compressible than others type.Type: ApplicationFiled: July 31, 2014Publication date: February 4, 2016Inventors: CHANG-JUN BAE, ERIC J. SHRADER, ASHISH MANANDHAR
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Publication number: 20160028129Abstract: A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.Type: ApplicationFiled: July 23, 2014Publication date: January 28, 2016Inventors: Ajay Raghavan, Peter Kiesel, Lars Wilko Sommer, Bhaskar Saha, Saroj Sahu, Alexander Lochbaum, Tobias Staudt, Chang-Jun Bae, Mohamed Alamgir, Hoe Jin Hah, Bokkyu Choi, Gyu-Ok Hwang, Geun-Chang Chung
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Publication number: 20160028102Abstract: A method of fabricating an electrochemical energy storage cell such as a battery or supercapacitor involves positioning a portion of a fiber optic cable that includes at least one optical fiber sensor over a current collector layer. The electrode material of the energy storage cell is deposited over the current collector layer and the fiber optic cable.Type: ApplicationFiled: July 23, 2014Publication date: January 28, 2016Inventors: Chang-Jun Bae, Eric J. Shrader, Ajay Raghavan, Peter Kiesel, Saroj Sahu