Patents by Inventor Derek Yu

Derek Yu 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).

  • Publication number: 20240282936
    Abstract: Methods and systems are provided for salt-rinse surface doping of electrode materials for lithium-ion batteries. In one example, a method may include dissolving a dopant salt in a solvent to form a dopant salt rinse solution, rinsing an electrode active material with the dopant salt rinse solution to form a coated electrode active material, and heating the coated electrode active material to form a doped electrode active material. In some examples, a surface region of the doped electrode active material may include a uniform distribution of dopants from the dopant salt rinse solution. In this way, the electrode active material may be rinsed and doped via the dopant salt rinse solution in a single-stage process.
    Type: Application
    Filed: April 24, 2024
    Publication date: August 22, 2024
    Inventors: Lei Liu, Kitae Kim, Lixin Wang, Anil Parmar, Bryan Kim, Chloe Harrison, Andrew Millonig, Derek Johnson, Eunsung Lee, Taehwan Yu
  • Patent number: 11504791
    Abstract: Various welding systems including a welding torch assembly are provided. The welding torch assemblies may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. The welding torch assemblies may also include a temperature sensing system integral with the welding torch and adapted to sense a temperature of the workpiece.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 22, 2022
    Assignee: Illinois Tool Works Inc.
    Inventors: Derek Yu-Fung Hung, John Alan Luck, Mark Steven Kadlec
  • Patent number: 10855756
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: December 1, 2020
    Assignee: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Patent number: 10786861
    Abstract: Embodiments of a tungsten inert gas (TIG) welding torch with an improved air cooled handle are provided. The welding torch may include a body, a cable assembly, and a torch head, with a handle placed over the body and the cable assembly. The handle may feature a curved end designed to fit near the torch head without contacting the torch head, providing a closer gripping point to allow greater control of the torch. In addition, the handle may be spaced from the body and the cable assembly to form an air space within the handle through which air may flow to cool the handle.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: September 29, 2020
    Assignee: Illinois Tool Works Inc.
    Inventor: Derek Yu-Fung Hung
  • Publication number: 20200114451
    Abstract: Various welding systems including a welding torch assembly are provided. The welding torch assemblies may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. The welding torch assemblies may also include a temperature sensing system integral with the welding torch and adapted to sense a temperature of the workpiece.
    Type: Application
    Filed: December 16, 2019
    Publication date: April 16, 2020
    Inventors: Derek Yu-Fung Hung, John Alan Luck, Mark Steven Kadlec
  • Publication number: 20200092365
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Patent number: 10537956
    Abstract: Various welding systems including a welding torch assembly are provided. The welding torch assemblies may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. The welding torch assemblies may also include a temperature sensing system integral with the welding torch and adapted to sense a temperature of the workpiece.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 21, 2020
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Derek Yu-Fung Hung, John Alan Luck, Mark Steven Kadlec
  • Patent number: 10523750
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 31, 2019
    Assignee: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Publication number: 20180255133
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Patent number: 9986027
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: May 29, 2018
    Assignee: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Patent number: 9838944
    Abstract: A wireless communication access path exists between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations directly or through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add information bearing on an identified QoS associated with the PDU to the PDUs before they are delivered to the downstream egress station(s) or intermediate relay station(s). The information may be used by the downstream stations to schedule the PDUs for further delivery. The information may also be used by the egress station to schedule the PDUs for delivery.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: December 5, 2017
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu, David G. Steer
  • Patent number: 9802267
    Abstract: A connector for connecting together a welding torch power cable including a threaded connector, a coolant line and a shielding gas line to a welding power and/or coolant source including a connector receptacle includes an electrically conductive tubular body having a front end and a back end. The tubular body front end is adapted to receive and connect to the power cable threaded connector. The tubular body back end is adapted to connect to the connector receptacle. The tubular body also includes a passageway therein to communicate shielding gas or coolant between the source and the torch. A hose connector is attached at an end of the passageway. A casing including a longitudinally extending tubular side wall terminates in front and back ends. A twist cap is releasably connectable to the back end of the casing. A cable cover adapter is releasably connectable to the front end of the casing.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: October 31, 2017
    Assignee: Illinois Tool Works Inc.
    Inventor: Derek Yu-Fung Hung
  • Publication number: 20170208530
    Abstract: A wireless communication access path exists between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations directly or through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add information bearing on an identified QoS associated with the PDU to the PDUs before they are delivered to the downstream egress station(s) or intermediate relay station(s). The information may be used by the downstream stations to schedule the PDUs for further delivery. The information may also be used by the egress station to schedule the PDUs for delivery.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 20, 2017
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu, David G. Steer
  • Patent number: 9686681
    Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: June 20, 2017
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu
  • Patent number: 9629061
    Abstract: A wireless communication access path exists between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations directly or through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add information bearing on an identified QoS associated with the PDU to the PDUs before they are delivered to the downstream egress station(s) or intermediate relay station(s). The information may be used by the downstream stations to schedule the PDUs for further delivery. The information may also be used by the egress station to schedule the PDUs for delivery.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: April 18, 2017
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu, David G. Steer
  • Publication number: 20170034696
    Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.
    Type: Application
    Filed: October 12, 2016
    Publication date: February 2, 2017
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu
  • Patent number: 9510190
    Abstract: Security in wireless communication networks that employ relay stations to facilitate communications between base stations and mobile stations is enhanced. In one embodiment, resource information provided to one or more relay stations from a base station or another relay station is encrypted prior to being delivered to the one or more relay stations. Only authorized relay stations are allocated an appropriate key necessary to decrypt the resource information. As such, only appropriate relay stations are able to access and use the resource information to effect communications directly or indirectly between the base stations and the mobile stations. In certain embodiments, the resource information is delivered between the various base and relay stations using either unicast or multicast delivery techniques.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: November 29, 2016
    Assignee: APPLE INC.
    Inventors: Hang Zhang, Peiying Zhu, Mo-Han Fong, Wen Tong, Gamini Senarath, Derek Yu, David Steer
  • Patent number: 9485792
    Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 1, 2016
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu
  • Patent number: 9438445
    Abstract: A method and system for wireless communication in which a plurality of media access control (“MAC”) packet data units (“PDUs”) corresponding to a plurality of wireless communication connections are received. The plurality of MAC PDUs is grouped into a relay packet and the relay packet is transmitted. Such grouping and transmission of the relay packet is performed by one or more relay nodes. The traffic control for the transmission can also be based on centralized or decentralized routing control and/or centralized or decentralized QoS control.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 6, 2016
    Assignee: BlackBerry Limited
    Inventors: Hang Zhang, Peiying Zhu, Mo-Han Fong, Wen Tong, Nimal Senarath, Derek Yu, David Steer, Curtis S. Dodd
  • Publication number: 20160255568
    Abstract: A wireless communication access path exists between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations directly or through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add information bearing on an identified QoS associated with the PDU to the PDUs before they are delivered to the downstream egress station(s) or intermediate relay station(s). The information may be used by the downstream stations to schedule the PDUs for further delivery. The information may also be used by the egress station to schedule the PDUs for delivery.
    Type: Application
    Filed: May 9, 2016
    Publication date: September 1, 2016
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu, David G. Steer