Patents by Inventor Zheng Gao
Zheng Gao 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: 11694713Abstract: A spin-orbit torque (SOT) magnetic tunnel junction (MTJ) device includes a substrate, a buffer layer formed over the substrate, and a bismuth antimony (BiSb) layer formed over the buffer layer, the BiSb layer having a (012) orientation. In certain embodiments, the SOT MTJ device is part of a microwave assisted magnetic recording (MAMR) write head. In certain embodiments, the SOT MTJ device is part of a magnetoresistive random access memory (MRAM) device.Type: GrantFiled: November 20, 2020Date of Patent: July 4, 2023Assignee: Western Digital Technologies, Inc.Inventors: Quang Le, Cherngye Hwang, Brian R. York, Thao A. Nguyen, Zheng Gao, Kuok San Ho, Pham Nam Hai
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Patent number: 11682420Abstract: Certain embodiments are directed to a spin torque oscillator (STO) device in a microwave assisted magnetic recording (MAMR) device. The magnetic recording head includes a seed layer, a spin polarization layer over the seed layer, a spacer layer over the spin polarization layer, and a field generation layer is over the spacer layer. In one embodiment, the seed layer comprises a tantalum alloy layer. In another embodiment, the seed layer comprises a template layer and a damping reduction layer over the template layer. In yet another embodiment, the seed layer comprises a texture reset layer, a template layer on the texture reset layer, and a damping reduction layer on the template layer.Type: GrantFiled: August 31, 2021Date of Patent: June 20, 2023Assignee: Western Digital Technologies, Inc.Inventors: James Mac Freitag, Zheng Gao, Susumu Okamura, Brian R. York
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Patent number: 11657836Abstract: Aspects of the present disclosure generally relate to a magnetic recording head of a spintronic device, such as a write head of a data storage device, for example a magnetic media drive. In one example, a magnetic recording head includes a main pole, a trailing shield, and a spin torque layer (STL) between the main pole and the trailing shield. The magnetic recording head includes a first layer structure on the main pole, and the first layer structure includes a negative polarization layer. The magnetic recording head also includes a second layer structure disposed on the negative polarization layer and between the negative polarization layer and the STL. The negative polarization layer is an FeCr layer. The second layer structure includes a Cr layer disposed on the FeCr layer, and a Cu layer disposed on the Cr layer and between the Cr layer and the STL.Type: GrantFiled: January 28, 2022Date of Patent: May 23, 2023Assignee: Western Digital Technologies, Inc.Inventors: James Mac Freitag, Susumu Okamura, Alexander Goncharov, Zheng Gao
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Patent number: 11646052Abstract: A magnetic recording write head and system has a spin-torque oscillator (STO) located between the write head's write pole and trailing shield. The STO's ferromagnetic free layer is located near the write pole with a multilayer seed layer between the write pole and the free layer. The STO's nonmagnetic spacer layer is between the free layer and the STO's ferromagnetic polarizer. The polarizer may be the trailing shield of the write head, one or more separate polarizer layers, or combinations thereof. The STO electrical circuitry causes electron flow from the write pole to the trailing shield. The multilayer seed layer removes the spin polarization of electrons from the write pole, which enables electrons reflected from the polarizer layer to become spin polarized, which creates the spin transfer torque on the magnetization of the free layer. The multilayer seed layer includes a Mn or a Mn-alloy layer.Type: GrantFiled: April 12, 2021Date of Patent: May 9, 2023Assignee: Western Digital Technologies, Inc.Inventors: James Mac Freitag, Zheng Gao, Masahiko Hashimoto, Sangmun Oh
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Patent number: 11619976Abstract: A device may include a display portion that includes a display housing and a display at least partially within the display housing. The device may also include a base portion pivotally coupled to the display portion and including a bottom case, a top case coupled to the bottom case and defining an array of raised key regions, and a sensing system below the top case and configured to detect an input applied to a raised key region of the array of raised key regions.Type: GrantFiled: July 28, 2022Date of Patent: April 4, 2023Assignee: APPLE INC.Inventors: Paul X. Wang, Alex J. Lehmann, Zheng Gao
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Publication number: 20230027086Abstract: A spin-orbit torque (SOT) magnetic tunnel junction (MTJ) device includes a substrate, a seed layer over the substrate, and a bismuth antimony (BiSb) layer having (0120) orientation on the seed layer. The seed layer includes a silicide layer and a surface control layer. The silicide layer includes a material of NiSi, NiFeSi, NiFeTaSi, NiCuSi, CoSi, CoFeSi, CoFeTaSi, CoCuSi, or combinations thereof. The surface control layer includes a material of NiFe, NiFeTa, NiTa, NiW, NiFeW, NiCu, NiCuM, NiFeCu, CoTa, CoFeTa, NiCoTa, Co, CoM, CoNiM, CoNi, NiSi, CoSi, NiCoSi, Cu, CuAgM, CuM, or combinations thereof, in which M is Fe, Cu, Co, Ta, Ag, Ni, Mn, Cr, V, Ti, or Si.Type: ApplicationFiled: September 28, 2022Publication date: January 26, 2023Applicant: Western Digital Technologies, Inc.Inventors: Quang LE, Cherngye HWANG, Brian R. YORK, Andrew CHEN, Thao A. NGUYEN, Yongchul AHN, Xiaoyong LIU, Hongquan JIANG, Zheng GAO, Kuok San HO
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Publication number: 20230015526Abstract: An input device for an electronic device includes an enclosure and a top member defining an input surface having multiple differentiated input regions. The input device further includes a first force sensing system associated with a first area of the top member and including a first group of the differentiated input regions, and a second force sensing system associated with a second area of the top member and including a second group of the differentiated input regions. The input device further includes a touch sensing system configured to determine which input region from the first group of the differentiated input regions corresponds to the first force input and to determine which input region from the second group of the differentiated input regions corresponds to the second force input.Type: ApplicationFiled: September 22, 2022Publication date: January 19, 2023Inventors: Alex J. Lehmann, Chang Zhang, Dayu Qu, Kenneth M. Silz, Paul X. Wang, Qiliang Xu, Zheng Gao, Scott J. McEuen, Reza Nasiri Mahalati
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Publication number: 20220365566Abstract: A device may include a display portion that includes a display housing and a display at least partially within the display housing. The device may also include a base portion pivotally coupled to the display portion and including a bottom case, a top case coupled to the bottom case and defining an array of raised key regions, and a sensing system below the top case and configured to detect an input applied to a raised key region of the array of raised key regions.Type: ApplicationFiled: July 28, 2022Publication date: November 17, 2022Inventors: Paul X. Wang, Alex J. Lehmann, Zheng Gao
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Patent number: 11500538Abstract: An input device for an electronic device includes an enclosure and a top member defining an input surface having multiple differentiated input regions. The input device further includes a first force sensing system associated with a first area of the top member and including a first group of the differentiated input regions, and a second force sensing system associated with a second area of the top member and including a second group of the differentiated input regions. The input device further includes a touch sensing system configured to determine which input region from the first group of the differentiated input regions corresponds to the first force input and to determine which input region from the second group of the differentiated input regions corresponds to the second force input.Type: GrantFiled: August 31, 2017Date of Patent: November 15, 2022Assignee: Apple Inc.Inventors: Alex J. Lehmann, Chang Zhang, Dayu Qu, Kenneth M. Silz, Paul X. Wang, Qiliang Xu, Zheng Gao, Scott J. McEuen, Reza Nasiri Mahalati
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Patent number: 11489108Abstract: A spin-orbit torque (SOT) magnetic tunnel junction (MTJ) device includes a substrate, a seed layer over the substrate, and a bismuth antimony (BiSb) layer having (0120) orientation on the seed layer. The seed layer includes a silicide layer and a surface control layer. The silicide layer includes a material of NiSi, NiFeSi, NiFeTaSi, NiCuSi, CoSi, CoFeSi, CoFeTaSi, CoCuSi, or combinations thereof. The surface control layer includes a material of NiFe, NiFeTa, NiTa, NiW, NiFeW, NiCu, NiCuM, NiFeCu, CoTa, CoFeTa, NiCoTa, Co, CoM, CoNiM, CoNi, NiSi, CoSi, NiCoSi, Cu, CuAgM, CuM, or combinations thereof, in which M is Fe, Cu, Co, Ta, Ag, Ni, Mn, Cr, V, Ti, or Si.Type: GrantFiled: April 28, 2020Date of Patent: November 1, 2022Assignee: Western Digital Technologies, Inc.Inventors: Quang Le, Cherngye Hwang, Brian R. York, Andrew Chen, Thao A. Nguyen, Yongchul Ahn, Xiaoyong Liu, Hongquan Jiang, Zheng Gao, Kuok San Ho
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Publication number: 20220326777Abstract: A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.Type: ApplicationFiled: June 17, 2022Publication date: October 13, 2022Inventors: Christiaan A. Ligtenberg, Brett W. Degner, Ron A. Hopkinson, Asif Hussain, Dinesh C. Mathew, Mikael M. Silvanto, Chang Zhang, Zheng Gao, Robert Y. Cao, Keith J. Hendren, Bryan W. Posner, Simon R. Lancaster-Larocque, Alex J. Lehmann
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Publication number: 20220321121Abstract: Disclosed herein is an input device having adjustable input mechanisms. The input mechanisms of the input device may be dynamically adjusted based on one or more input characteristics associated with a user. Accordingly, the input device may be customized to fit a user's input preferences.Type: ApplicationFiled: June 14, 2022Publication date: October 6, 2022Inventors: Paul X. Wang, John C. DiFonzo, Dayu Qu, Zheng Gao, Chang Zhang
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Publication number: 20220300088Abstract: Embodiments are directed to a low profile key for a keyboard having an overmolded support structure. In one aspect, an embodiment includes a key cap having an illuminable symbol. A support structure having a pair of overmolded wings may pivotally couple to the key cap. A switch housing may surround the support structure and connect each of the first and second wings. A tactile dome may be at least partially positioned within the switch housing and configured to bias the key cap upward. A sensing membrane may be positioned along an underside surface of the tactile dome and configured to trigger a switch event in response to a collapsing of the tactile dome caused by a depression of the key cap. A feature plate may be positioned below the sensing membrane. A light guide panel may define at least one light extraction feature that may be configured to propagate light toward the key cap and cause illumination of the illuminable symbol.Type: ApplicationFiled: June 9, 2022Publication date: September 22, 2022Inventors: Michelle R. Goldberg, Kathleen A. Bergeron, Paul X. Wang, Alex J. Lehmann, William P. Yarak, III, Kevin C. Armendariz, Zheng Gao
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Patent number: 11409332Abstract: A device may include a display portion that includes a display housing and a display at least partially within the display housing. The device may also include a base portion pivotally coupled to the display portion and including a bottom case, a top case coupled to the bottom case and defining an array of raised key regions, and a sensing system below the top case and configured to detect an input applied to a raised key region of the array of raised key regions.Type: GrantFiled: August 18, 2020Date of Patent: August 9, 2022Assignee: Apple Inc.Inventors: Paul X. Wang, Alex J. Lehmann, Zheng Gao
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Publication number: 20220247571Abstract: A labeling method is provided. In the method, target image data of a target image is acquired from an offline storage device. The target image data is encrypted based on a first target account. A permission to load the target image data is verified based on a second target account logged in to a labeling client. The target image is loaded in the labeling client in response to the permission to load the target image being verified when the second target account logged in to the labeling client matches the first target account. A label for the target image is received. Further, the label for the target image is transmitted to a server. The server is configured to store the label in association with the target image. Apparatus and non-transitory computer-readable storage medium counterpart embodiments are also contemplated.Type: ApplicationFiled: April 20, 2022Publication date: August 4, 2022Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Zheng GAO, Yanchun ZHU, Hang RUAN, Jianrong WU, Jia CHANG, Xuan ZHOU, Yan LIU, Xiaohui HAN
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Patent number: 11394385Abstract: Disclosed herein is an input device having adjustable input mechanisms. The input mechanisms of the input device may be dynamically adjusted based on one or more input characteristics associated with a user. Accordingly, the input device may be customized to fit a user's input preferences.Type: GrantFiled: February 1, 2017Date of Patent: July 19, 2022Assignee: APPLE INC.Inventors: Paul X. Wang, John C. DiFonzo, Dayu Qu, Zheng Gao, Chang Zhang
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Patent number: 11379049Abstract: Embodiments are directed to a low profile key for a keyboard having an overmolded support structure. In one aspect, an embodiment includes a key cap having an illuminable symbol. A support structure having a pair of overmolded wings may pivotally couple to the key cap. A switch housing may surround the support structure and connect each of the first and second wings. A tactile dome may be at least partially positioned within the switch housing and configured to bias the key cap upward. A sensing membrane may be positioned along an underside surface of the tactile dome and configured to trigger a switch event in response to a collapsing of the tactile dome caused by a depression of the key cap. A feature plate may be positioned below the sensing membrane. A light guide panel may define at least one light extraction feature that may be configured to propagate light toward the key cap and cause illumination of the illuminable symbol.Type: GrantFiled: March 14, 2019Date of Patent: July 5, 2022Assignee: APPLE INC.Inventors: Michelle R. Goldberg, Kathleen A. Bergeron, Paul X. Wang, Alex J. Lehmann, William P. Yarak, III, Kevin C. Armendariz, Zheng Gao
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Publication number: 20220196573Abstract: A system and a method for measuring the volume change of rock under the action of microwaves are disclosed. The test cavity is of a sealed cavity structure, and a rock specimen is placed in the test cavity. The microwave control device is arranged inside the test cavity. The strain measuring device includes circumferential strain gauge and axial strain gauge and is attached to the surface of the rock specimen. The measurement circuit is connected with a number of strain measuring devices through lead wires, and the resistance strain gauge is connected with the measurement circuit. After the microwaves emitted by the microwave control device act on the rock specimen, data acquisition is carried out on the rock specimen through the number of circumferential strain gauges and the number of axial strain gauges which are attached to the surface of the rock specimen.Type: ApplicationFiled: March 6, 2022Publication date: June 23, 2022Inventors: Mingzhong GAO, Bengao YANG, Ruifeng TANG, Junjun LIU, Siqi YE, Xuemin ZHOU, Jun WANG, Haichun HAO, Zheng GAO, Yan WU, Zhaoying YANG, Xiangyue WEN, Xuan WANG
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Patent number: 11366523Abstract: A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.Type: GrantFiled: May 13, 2020Date of Patent: June 21, 2022Assignee: APPLE INC.Inventors: Christiaan A. Ligtenberg, Brett W. Degner, Ron A. Hopkinson, Asif Hussain, Dinesh C. Mathew, Mikael M. Silvanto, Chang Zhang, Zheng Gao, Robert Y. Cao, Keith J. Hendren, Bryan W. Posner, Simon R. Lancaster-Larocque, Alex J. Lehmann
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Patent number: 11360560Abstract: An input device, such as a stylus, can include a piezoelectric device for providing haptic feedback and/or detecting user input. The piezoelectric device can be coupled to an inner surface of a housing of the stylus. The piezoelectric device can provide haptic feedback with a force to the housing when an electric voltage is applied to the piezoelectric device. The haptic feedback can provide information to the user relating operation of the stylus with an external device. The piezoelectric device can also produce an electric voltage when an input force is applied to an outer surface of the housing and transmitted to the piezoelectric device. The electric voltage can be used to detect tactile input from a user.Type: GrantFiled: February 10, 2020Date of Patent: June 14, 2022Assignee: APPLE INC.Inventors: Kathleen A. Bergeron, Alex J. Lehmann, Qiliang Xu, Zheng Gao, Paul X. Wang