Patents by Inventor Chung Fai Lam

Chung Fai Lam 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).

  • Patent number: 11925425
    Abstract: Example embodiments relate to surgical systems and methods. The system includes an arm assembly and end-effector assembly. The arm assembly includes a first drive portion and wrist drive portion. The end-effector assembly is securable to and removable from the arm assembly. The end-effector assembly includes an instrument assembly and wrist assembly. The instrument assembly includes a first instrument, first instrument driven portion, and first instrument insulative portion. The first instrument driven portion is configured to move the first instrument relative to a first axis when the first instrument driven portion is driven by the first drive portion. The wrist assembly includes a wrist driven portion. The wrist driven portion is configured to move the first instrument relative to a second axis when the wrist driven portion is driven by the wrist drive portion. The end-effector assembly is secured to and removable from the arm assembly via a wrist connector portion.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: March 12, 2024
    Assignee: IEMIS (HK) LIMITED
    Inventors: Chung Kwong Yeung, Wing Fai Lam, Wai Lik Alik Chan
  • Patent number: 11918311
    Abstract: Example embodiments relate to surgical systems. The system includes an end-effector assembly having an instrument. The system includes a first arm assembly. A distal end of first arm assembly is securable to the end-effector assembly. The system includes an elbow joint assembly. A distal end of elbow joint assembly is secured to a proximal end of first arm assembly. A proximal end of elbow joint assembly is secured to a distal end of second arm assembly. The second arm assembly includes a first elbow drive assembly. The first elbow drive assembly includes an integrated motor for driving the elbow joint assembly to pivotally move the first arm assembly relative to an axis. The second arm assembly also includes a second elbow drive assembly. The second elbow drive assembly includes an integrated motor for driving the elbow joint assembly to pivotally move the first arm assembly relative to another axis.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: March 5, 2024
    Assignee: IEMIS (HK) Limited
    Inventors: Chung Kwong Yeung, Wing Fai Lam, Wai Leung William Cheng
  • Patent number: 8758031
    Abstract: The present invention is directed to an electrical wiring device that includes an AC power supply control circuit, an isolation interface circuit and a low voltage printed circuit board (PCB) assembly. The low voltage PCB assembly includes a universal serial bus (USB) charging interface circuit configured to convert the modulated power signal into a low voltage direct current (DC) charging signal. The at least one low voltage PCB assembly includes at least one USB socket coupled to the USB charging interface circuit and accessible via the at least one USB aperture formed in the front cover member. The USB charging interface circuit is configured to provide the low voltage DC charging signal to at least one device-under-charge at a maximum predetermined charging current.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: June 24, 2014
    Assignee: Pass & Seymour, Inc.
    Inventors: Wai Chun Cheng, Chung Fai Lam, Lorenzo Trolese
  • Publication number: 20130280956
    Abstract: The present invention is directed to an electrical wiring device that includes an AC power supply control circuit, an isolation interface circuit and a low voltage printed circuit board (PCB) assembly. The low voltage PCB assembly includes a universal serial bus (USB) charging interface circuit configured to convert the modulated power signal into a low voltage direct current (DC) charging signal. The at least one low voltage PCB assembly includes at least one USB socket coupled to the USB charging interface circuit and accessible via the at least one USB aperture formed in the front cover member. The USB charging interface circuit is configured to provide the low voltage DC charging signal to at least one device-under-charge at a maximum predetermined charging current.
    Type: Application
    Filed: July 23, 2012
    Publication date: October 24, 2013
    Applicant: PASS & SEYMOUR, INC.
    Inventors: Wai Chun Cheng, Chung Fai Lam, Lorenzo Trolese
  • Patent number: 6704173
    Abstract: A method and system for providing a suspension assembly for protecting a magnetoresistive (MR) head from electrostatic discharge damage is disclosed. The MR head includes an MR sensor having a first end and a second end. The method and system include providing a first lead and a second lead and providing an insulating film substantially supporting a first portion of the first lead and a second portion of the second lead. The MR head is coupled with the suspension assembly. The first and second ends of the MR sensor are coupled with the first and second leads, respectively. The method and system include providing a conductive strip coupled with the insulating film. In one aspect, the method and system include providing at least one diode electrically coupling the first lead and the second lead. In another aspect, the method and system also include electrically coupling first lead with the conductive strip.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: March 9, 2004
    Assignee: Western Digital (Fremont), Inc.
    Inventors: Chung Fai Lam, Gary Lloyd Crown, Seila Chao Chim
  • Patent number: 6373660
    Abstract: A method and system for protecting a magnetoresistive (MR) head from electrostatic discharge damage is disclosed. The MR head includes an MR sensor having a first end and a second end. The MR head is coupled with a suspension assembly including a first lead coupled with the first end of the MR sensor, a second lead coupled with the second end of the MR sensor, and an insulating film supporting first and second portions of the first and second leads. In one aspect, the method and system include providing first and second test pads coupled with the first and second leads, respectively. The first and second test pads are for testing the MR head. The method and system also include providing a permanent resistor coupled to the first and second test pads. The permanent resistor has a resistance of less than approximately ten thousand ohms. In another aspect, the suspension assembly includes first and second head gimbal assembly pads coupled to the first and second leads, respectively.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: April 16, 2002
    Assignee: Read-Rite Corporation
    Inventors: Chung Fai Lam, Caleb Kai-lo Chang, Dino Tommy Anthony Martinez, Dallas W. Meyer, Seila Chao Chim
  • Patent number: 5525091
    Abstract: A transfer tool is provided with a block which has an elongated slot. With the elongated slot a beam is formed in a lower portion of the block. The beam can be adjusted for row bow of a slider row which includes magnetic heads. Three holes extend through the block to the slot, opening three exposed portions of the beam, one exposed portion being centrally located and the other two exposed portions being located laterally on each side of the central portion near the ends of the beam. The ends of the slot have transverse slots which allow the beam to flex more readily when pressures are applied to the exposed portions near the ends of the beam. Pins extend through the holes with their downward ends engaging the exposed beam portions. Actuators are employed to apply appropriate forces to the pins so that the beam can be selectively adjusted to compensate for row bow of the slider row.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: June 11, 1996
    Assignee: International Business Machines Corporation
    Inventors: Chung-Fai Lam, Yew-Nam Yong