Patents by Inventor QIGEN JI

QIGEN JI 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: 20190138073
    Abstract: Embodiments describe a receiving element that includes a ferromagnetic structure axially symmetrical around a central axis disposed along a length of the ferromagnetic structure. The ferromagnetic structure includes a groove region defining two end regions on opposing sides of the groove region, where the groove region has a smaller length than the two end regions. The receiving element also includes an inductor coil wound about the groove region of the ferromagnetic structure and in between the two end regions.
    Type: Application
    Filed: September 10, 2018
    Publication date: May 9, 2019
    Applicant: Apple Inc.
    Inventors: Blake R. Marshall, Florence W. Ow, Joel N. Ruscher, Liquan Tan, Aidan N. Zimmerman, Reza Nasiri Mahalati, Hao Zhu, Qigen Ji, Madhusudanan Keezhveedi Sampath, Nan Liu, Robert Scritzky, Gianpaolo Lisi
  • Publication number: 20190103764
    Abstract: Embodiments describe a receiving element that includes a ferromagnetic structure axially symmetrical around a central axis disposed along a length of the ferromagnetic structure. The ferromagnetic structure includes a groove region defining two end regions on opposing sides of the groove region, where the groove region has a smaller length than the two end regions. The receiving element also includes an inductor coil wound about the groove region of the ferromagnetic structure and in between the two end regions.
    Type: Application
    Filed: September 10, 2018
    Publication date: April 4, 2019
    Applicant: Apple Inc.
    Inventors: Blake R. Marshall, Florence W. Ow, Joel N. Ruscher, Liquan Tan, Aidan N. Zimmerman, Reza Nasiri Mahalati, Hao Zhu, Qigen Ji, Madhusudanan Keezhveedi Sampath, Nan Liu, Robert Scritzky, Gianpaolo Lisi
  • Patent number: 10225384
    Abstract: An electronic device and accessory device are disclosed. The devices may be designed to magnetically couple together. Accordingly, each device may include one or more magnets that magnetically couple. In order to maintain the magnetic coupling and resist some at least some force or forces acting on, for example, the accessory device, the magnets may include a shape designed to increase the amount of force required to move the magnets in the accessory device relative to the magnets in the electronic device. The shape of the magnets may include polygonal shapes such as a trapezoid or a triangle. Magnets, having a trapezoidal or a triangular shape, magnetically couple with one another, may provide a stronger counterforce to lateral forces acting on the magnets.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: March 5, 2019
    Assignee: Apple Inc.
    Inventor: Qigen Ji
  • Patent number: 10210975
    Abstract: This application relates to a case for a portable electronic device. The case includes a magnetic boosting device, carried in a cover of the case. The magnetic boosting device includes a layer of magnetic elements including: (i) a primary magnetic element, and (ii) a secondary magnetic element. The primary magnetic element, characterized by having magnetic poles that are aligned perpendicular to the plane of the cover, provides a first magnetic field. The secondary magnetic element, characterized by having magnetic poles that are aligned parallel to the plane of the cover, provides a second magnetic field. The first magnetic field and the second magnetic field contribute to a resultant magnetic field that is asymmetrically disposed about the plane of the cover. The electronic device can include a sensor and a controller for placing the electronic device in a power saving mode when the cover is in a closed position.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 19, 2019
    Assignee: Apple Inc.
    Inventors: Qigen Ji, Hao Zhu
  • Publication number: 20170344115
    Abstract: A haptic actuator is disclosed. The haptic actuator comprises a magnet, a conductor set apart from the magnet by a gap, and an actuator coupled to the magnet. The actuator is configured to move the magnet between a first position in which the conductor is subjected to, from the magnet, a first net magnetic flux having a first direction, and a second position in which the conductor is subjected to, from the magnet, a second net magnetic flux having a second direction different than the first direction.
    Type: Application
    Filed: May 26, 2016
    Publication date: November 30, 2017
    Inventor: Qigen Ji
  • Patent number: 9829981
    Abstract: A haptic actuator is disclosed. The haptic actuator comprises a magnet, a conductor set apart from the magnet by a gap, and an actuator coupled to the magnet. The actuator is configured to move the magnet between a first position in which the conductor is subjected to, from the magnet, a first net magnetic flux having a first direction, and a second position in which the conductor is subjected to, from the magnet, a second net magnetic flux having a second direction different than the first direction.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: November 28, 2017
    Assignee: APPLE INC.
    Inventor: Qigen Ji
  • Publication number: 20170269634
    Abstract: An electronic device and accessory device are disclosed. The devices may be designed to magnetically couple together. Accordingly, each device may include one or more magnets that magnetically couple. In order to maintain the magnetic coupling and resist some at least some force or forces acting on, for example, the accessory device, the magnets may include a shape designed to increase the amount of force required to move the magnets in the accessory device relative to the magnets in the electronic device. The shape of the magnets may include polygonal shapes such as a trapezoid or a triangle. Magnets, having a trapezoidal or a triangular shape, magnetically couple with one another, may provide a stronger counterforce to lateral forces acting on the magnets.
    Type: Application
    Filed: July 29, 2016
    Publication date: September 21, 2017
    Inventor: Qigen JI
  • Publication number: 20100126374
    Abstract: The present invention relates to a novel magnetic suspension and propulsion technologies, which are named as Magnetostatic Suspension (MSS) and Magnetostatic Propulsion (MSP) respectively because of their magnetostatic nature of forces generated. A spring-like magnetic force is produced through interactions between magnets and ferrous materials such as steel.
    Type: Application
    Filed: December 3, 2009
    Publication date: May 27, 2010
    Inventor: QIGEN JI