Patents by Inventor Kai Leung

Kai Leung 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: 20170128143
    Abstract: Example embodiments relate to a device comprising a port assembly, instrument arm assembly, and camera arm assembly. The port assembly includes an outer and inner body. The outer body includes a first access port, first end, second end, and anchoring portions. The inner body is positionable in the first access port to form a second access port. The instrument arm assembly is configurable in a serial arrangement of arm segments, joint portions, and end instrument. The instrument arm assembly is configurable to attach to an anchoring portion. The camera arm assembly includes a camera, and configurable to attach to an anchoring portion. The port assembly is configurable to provide at least one degree of freedom, and configurable to allow insertion of the instrument arm assembly and camera arm assembly into an abdominal cavity. The port assembly is configurable to allow insertion of instruments into the abdominal cavity.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Inventors: Chung-Kwong YEUNG, Kai-Leung YUNG, Jimmy Tsun-Ping TO
  • Patent number: 9532438
    Abstract: A system for wirelessly controlling LED lighting includes: a plurality of LED lamps, each lamp being equipped with a wireless communication module; and a smart device being in communication with the wireless communication module and configured to be controlled by a user. The smart device is configured to generate a unique lamp ID for each LED lamp, and embed the unique lamp ID into a signal for controlling each LED lamp through the wireless communication module so that the unique lamp ID is detectable in a form of visible light. The signal for controlling each LED lamp is a PWM signal, while data rate of the lamp ID is higher than that of the PWM signal. A method for wirelessly controlling LED lighting is also provided.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: December 27, 2016
    Assignee: ESPOT LIGHTING LIMITED
    Inventors: Chun Kai Leung, Wai Keung Lo, Yin Ching Chau
  • Publication number: 20150312994
    Abstract: A system for wirelessly controlling LED lighting includes: a plurality of LED lamps, each lamp being equipped with a wireless communication module; and a smart device being in communication with the wireless communication module and configured to be controlled by a user. The smart device is configured to generate a unique lamp ID for each LED lamp, and embed the unique lamp ID into a signal for controlling each LED lamp through the wireless communication module so that the unique lamp ID is detectable in a form of visible light. The signal for controlling each LED lamp is a PWM signal, while data rate of the lamp ID is higher than that of the PWM signal. A method for wirelessly controlling LED lighting is also provided.
    Type: Application
    Filed: April 28, 2015
    Publication date: October 29, 2015
    Inventors: Chun Kai Leung, Wai Keung Lo, Yin Ching Chau
  • Publication number: 20150297299
    Abstract: Example embodiments relate to devices, systems, and methods for performing a surgical action. The device may comprise a port assembly, a camera arm assembly, and an instrument arm assembly. The port assembly comprises an access port and a plurality of anchoring portions. The camera arm assembly comprises at least one camera at a distal end and is configurable to insert into the access port and attach to one of the anchoring portions. The instrument arm assembly comprises a serial arrangement including a plurality of arm segments, a plurality of joint portions, and at least one end instrument attached to one of the arm segments by an instrument joint portion at a distal end. Each joint portion is configurable to provide an attached arm segment with at least one degree of freedom. Furthermore, the instrument joint portion is configurable to provide the end instrument with at least one degree of freedom.
    Type: Application
    Filed: April 22, 2015
    Publication date: October 22, 2015
    Inventors: Chung-Kwong YEUNG, Kai-Leung YUNG, Jimmy Tsun-Ping TO
  • Patent number: 9088073
    Abstract: An antenna system includes an antenna element having two antenna feeds and a shared connection to a ground plane. A first antenna portion has a first resonant frequency length of at least one first wavelength formed from a first feed together with the shared ground connection. A second antenna portion has a second resonant frequency length formed from a second feed together with the shared ground connection. First and second slots are respectively positioned between the shared ground connection and the respective first and second feeds such that the slots create inductances. At least a portion of the ground plane is located directly beneath at least a portion of the first and second slots. The first and second slot inductances together with the ground plane capacitances form one or more filter components to isolate the first and second resonant frequencies in the antenna element.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: July 21, 2015
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Chun Kai Leung, Corbett Ray Rowell, Tik Shun Leung, Kuang Boon Beh
  • Patent number: 9020640
    Abstract: A surgical system includes a manipulator, an implantable actuator and a controller. The manipulator includes a plurality of integrated sensor/actuators. The sensors of the sensor/actuators are adapted to detect movement about a plurality of axes of movement. The implantable actuator includes a plurality of joints providing a plurality of axes of movement. The controller is configured to receive information from the plurality of sensor/actuators that indicates movement of the manipulator about the plurality of axes and to cause the joints of the actuator to move along corresponding axes of movement. Each sensor/actuator of the manipulator detects movement about an axis of movement corresponding to a similar one of the joints of the actuator.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: April 28, 2015
    Assignee: Bio-Medical Engineering (HK) Limited
    Inventors: Chung Kwong Yeung, Kai Leung Yung
  • Patent number: 8891924
    Abstract: A surgical system includes an external anchor, an internal anchor and an instrument. The external anchor is adapted to be positioned outside a body. The internal anchor is adapted to be inserted into the body via a single entrance port, positioned inside the body and magnetically coupled with the external anchor. The instrument is adapted to be inserted into the body via the single entrance port and secured to the internal anchor. The instrument includes an end-effector that has multiple degrees of movement via multiple axes.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 18, 2014
    Assignee: Bio-Medical Engineering (HK) Limited
    Inventors: Chung Kwong Yeung, Kai Leung Yung
  • Publication number: 20130289579
    Abstract: A surgical system includes an external anchor, an internal anchor and an instrument. The external anchor is adapted to be positioned outside a body. The internal anchor is adapted to be inserted into the body via a single entrance port, positioned inside the body and magnetically coupled with the external anchor. The instrument is adapted to be inserted into the body via the single entrance port and secured to the internal anchor. The instrument includes an end-effector that has multiple degrees of movement via multiple axes.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 31, 2013
    Applicant: BIO-MEDICAL ENGINEERING (HK) LIMITED
    Inventors: Chung Kwong YEUNG, Kai Leung YUNG
  • Publication number: 20130289580
    Abstract: A surgical system includes an external anchor, an internal anchor and an instrument. The external anchor is adapted to be positioned outside a body. The internal anchor is adapted to be inserted into the body via a single entrance port, positioned inside the body and magnetically coupled with the external anchor. The instrument is adapted to be inserted into the body via the single entrance port and secured to the internal anchor. The instrument includes an end-effector that has multiple degrees of movement via multiple axes.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 31, 2013
    Applicant: BIO-MEDICAL ENGINEERING (HK) LIMITED
    Inventors: Chung Kwong YEUNG, Kai Leung YUNG
  • Publication number: 20130289768
    Abstract: A surgical system includes a manipulator, an implantable actuator and a controller. The manipulator includes a plurality of integrated sensor/actuators. The sensors of the sensor/actuators are adapted to detect movement about a plurality of axes of movement. The implantable actuator includes a plurality of joints providing a plurality of axes of movement. The controller is configured to receive information from the plurality of sensor/actuators that indicates movement of the manipulator about the plurality of axes and to cause the joints of the actuator to move along corresponding axes of movement. Each sensor/actuator of the manipulator detects movement about an axis of movement corresponding to a similar one of the joints of the actuator.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 31, 2013
    Applicant: Bio-Medical Engineering (HK) Limited
    Inventors: Chung Kwong YEUNG, Kai Leung YUNG
  • Publication number: 20130289581
    Abstract: A robotic actuator includes an internal anchor and an instrument. The internal anchor is adapted to be inserted into a body via an entrance port, positioned inside the body, and magnetically coupled with an external anchor positioned outside the body. The instrument is adapted to be inserted into the body via the entrance port and secured to the internal anchor. The instrument includes an end-effector having multiple degrees of movement via multiple axes, and a plurality of actuators that provide the multiple degrees of movement.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 31, 2013
    Applicant: Bio-Medical Engineering (HK) Limited
    Inventors: Chung Kwong YEUNG, Kai Leung YUNG
  • Publication number: 20130222186
    Abstract: An antenna system includes an antenna element having two antenna feeds and a shared connection to a ground plane. A first antenna portion has a first resonant frequency length of at least one first wavelength formed from a first feed together with the shared ground connection. A second antenna portion has a second resonant frequency length formed from a second feed together with the shared ground connection. First and second slots are respectively positioned between the shared ground connection and the respective first and second feeds such that the slots create inductances. At least a portion of the ground plane is located directly beneath at least a portion of the first and second slots. The first and second slot inductances together with the ground plane capacitances form one or more filter components to isolate the first and second resonant frequencies in the antenna element.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 29, 2013
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Chun Kai LEUNG, Corbett Ray ROWELL, Tik Shun LEUNG, Kuang Boon BEH
  • Patent number: 8409262
    Abstract: The present invention provides a composition used for increasing calmodulin and a method thereof. A far-infrared ray is released by a far-infrared releasing substance in the composition so as to induce intracellular calmodulin concentration increased in organisms. The far-infrared releasing substance consists of ceramic minerals and mainly comprises 80-99.9 wt % of oxide minerals including 60-95 wt % of the mineral alumina. The far-infrared releasing substance according to the present invention has the advantages of easy to carry and continuously working, so as to significantly improve the shortcoming of drugs with short-term acting.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: April 2, 2013
    Assignee: National Applied Research Laboratories
    Inventors: Yung-Sheng Lin, Ting-Kai Leung, Jiann-Shiun Kao
  • Patent number: 8373360
    Abstract: A lighting control system and an LED lamp for use with the lighting control system are provided. In one embodiment, the LED lamp includes a color LED including a red LED, a green LED, and a blue LED, and a lamp contact having a first contact section, a second contact section, and a third contact section, each of the first contact section, the second contact section, and the third contact section including a positive contact and a negative contact, wherein the first contact section is electrically connected to the red LED, the second contact section is electrically connected to the green LED, and the third contact section is electrically connected to the blue LED. The lighting control system may include an LED driver unit configured to provide independent electrical connection with each of the contact sections of the LED lamp.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: February 12, 2013
    Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventors: Chun Kai Leung, Kai Chiu Wu, Tik Shun Leung, Kin Cheong Li, Ming Lu
  • Publication number: 20130005280
    Abstract: A system for sensing motion and performing wireless communication, includes one or more antennas for transmitting and receiving wireless data communication signals and motion detection electromagnetic waves. One or more electrical switches switch among electrical paths activating frequency channel scanning, motion sensing, interference detection, and data communication. A motion sensor receiver receives motion detection electromagnetic waves. A transceiver generates both modulated RF signals for the wireless data communication and un-modulated RF signals for the motion detection. One or more processors process motion detection electromagnetic wave data and detected interference signal data as well as processing wireless communication data to and from the transceiver, controlling the one or more electrical switches, and providing commands to the transceiver.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 3, 2013
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Chun Kai Leung, Ka King Wong, Tik Shun Leung
  • Patent number: 8333018
    Abstract: The present invention discloses a composition for enhancing evaporation of a solution and a method thereof. A far-infrared ray is released by a far-infrared releasing substance in the composition so as to induce evaporation of the solution. The far-infrared releasing substance may be ceramic minerals and mainly comprises 80˜99.9 wt % of oxide minerals including 60˜95 wt % of the aluminum oxide. The present invention can enhance evaporation of the solution by a simple physical method. Hence, the present invention not only promotes the application of the products but also reduces the pollutants generated by a chemical reaction, thereby achieving the object of protecting the environment from the pollution.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: December 18, 2012
    Assignee: National Applied Research Laboratories
    Inventors: Yung-Sheng Lin, Ting-Kai Leung, Chien-Chung Chen, Jiann-Shiun Kao
  • Patent number: 8274368
    Abstract: A chipless microwave identification tag (200) comprising: a dielectric substrate (210); and a plurality of antenna elements (220) made from a conductive material and disposed on at least one surface (205, 255) of the dielectric substrate (210); wherein when the tag (200) is excited by an incident microwave signal (131), a reflected wave (141) to identify the tag (200) is generated with a number of specific frequencies altered by microwave resonation of the antenna elements (220).
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: September 25, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Kai Leung Yung, Ching Yuen Chan, David Ki Wai Cheng
  • Patent number: 8127820
    Abstract: Techniques for producing optical medium that can be read at substantially high speeds with greater stability and accuracy are disclosed. According to one aspect of the techniques, a molding station includes an optimized stampler which does not have an exact inverse image of a replica. To account for an inherent distortion in a substrate after being stamped, a stampler is pre-distorted so that the pit geometry in the stamped substrate becomes nearly perfect after the inherent distortion. In one embodiment, the injection of a molten material, the mold position and compression are respectively controlled to account for possible non-uniform density distribution of the material. To provide an effective bonding process, a bonding station is employed with what is referred to as index bonding technique and/or pulse bonding technique. The index bonding is provided to ensure that non-flatness of substrates is compensated when two substrates are bonded together so as to minimize possible dynamic imbalance of a disc.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: March 6, 2012
    Assignee: Anwell Technologies Limited
    Inventors: Kai Leung Fan, Ming Sang Yeung
  • Patent number: D730181
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 26, 2015
    Assignee: Global Dispensing Ltd
    Inventors: Valentin Chee Kai Leung, John Violett
  • Patent number: D730182
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 26, 2015
    Assignee: Global Dispensing Ltd
    Inventors: Valentin Chee Kai Leung, John Violett