Patents by Inventor Kin Chan

Kin Chan 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: 10159925
    Abstract: An air filter and a method of air filtration using the said air filter are described. The air filter may comprise a filter media layer adapted to capture and filter one or more impurities from air. The air filter may further comprise one or more acoustic wave generating means attached at one or more sides of the filter media layer. The one or more acoustic wave generating means may generate acoustic waves to be propagated into the filter media layer. The propagation of the acoustic waves into the filter media layer may facilitate the filter media layer to enhance the filtration efficiency of the air filter. The air filter may further comprise a pre-programmed chip to control the frequency of the acoustic waves generated. Further, air filter may comprise a battery adapted to supply power to the one or more acoustic wave generating means and the pre-programmed chip.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: December 25, 2018
    Assignee: Aurabeat Holdings Limited
    Inventors: Gin Nam Sze To, Steven Nai-Kin Chan
  • Patent number: 10134489
    Abstract: A medical pad includes a piece of substrate with a major surface and an electric circuit on the major surface, a sensor connected with the electric circuit for measuring the electrical resistance of the electric circuit, and a wireless data transceiver or a radio frequency identification (RFID) tag electrically connected with the sensor for receiving results of the measuring from the sensor for subsequent transmission. The system carries out real time self-calibration to adaptively monitor the condition of a medical pad even in the face of changing environment and changing material properties.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: November 20, 2018
    Assignee: Convergence Systems Limited
    Inventors: Kin Yue Albert Lai, Cheuk Kuen Kenny Chan, Man Wai Law, Kwok Wah Sit, Ngai Yin Chan, Siu Chong Tin, Wai Kin Chan, Tak Leung Siu, Yick Ming Yeung, Jerry Garrett
  • Patent number: 9946236
    Abstract: The present invention discloses an electronic device and control method thereof. The electronic device according to the present invention comprises a main engine and a USB man-machine interface unit connected thereto; an illuminating source and a drive circuit thereof are arranged on the USB man-machine interface unit; the USB man-machine interface unit receives illuminating information sent by the main engine, generates a control command according to the illuminating information and sends the control command to the drive circuit so as to drive the illuminating source. Because the present invention sends the illuminating information to the USB man-machine interface unit through the main engine and then obtains the control command to switch on or off the illuminating source after processing the illuminating information through the USB man-machine interface unit, a user can participate in controlling the illuminating source so as to realize an illuminating effect expected by the user.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: April 17, 2018
    Assignee: Heng Yu Technology (Hong Kong) Limited
    Inventors: Chun Kin Chan, Chun Kit Chan, Hoi Kai Chan
  • Patent number: 9801554
    Abstract: A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. There are a plurality of light emitters and light detectors located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and receiving reflected light signals from the different areas of tissue surrounding the body part.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 31, 2017
    Assignee: Well Being Digital Limited
    Inventors: Chor Tin Ma, Kai Kin Chan, Ming Yip Wong, Kai Wai Yeung, Fo Chau
  • Publication number: 20170197171
    Abstract: An air filter and a method of air filtration using the said air filter are described. The air filter may comprise a filter media layer adapted to capture and filter one or more impurities from air. The air filter may further comprise one or more acoustic wave generating means attached at one or more sides of the filter media layer. The one or more acoustic wave generating means may generate acoustic waves to be propagated into the filter media layer. The propagation of the acoustic waves into the filter media layer may facilitate the filter media layer to enhance the filtration efficiency of the air filter. The air filter may further comprise a pre-programmed chip to control the frequency of the acoustic waves generated. Further, air filter may comprise a battery adapted to supply power to the one or more acoustic wave generating means and the pre-programmed chip.
    Type: Application
    Filed: January 6, 2017
    Publication date: July 13, 2017
    Inventors: Gin Nam Sze To, Steven Nai-Kin Chan
  • Publication number: 20170105639
    Abstract: A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. There are a plurality of light emitters and light detectors located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and receiving reflected light signals from the different areas of tissue surrounding the body part.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Inventors: Chor Tin MA, Kai Kin CHAN, Ming Yip WONG, Kai Wai YEUNG, Fo CHAU
  • Patent number: 9621020
    Abstract: A control circuit for controlling a switching device having a first terminal, a second terminal, and a control terminal is disclosed. The control circuit includes a first diode for coupling to the first terminal of the switching device, a second diode for coupling to the second terminal of the switching device, a first transistor for coupling to the control terminal of the switching device, and a second transistor coupled to the second diode. The first transistor is coupled to the first diode. The control circuit is configured to allow current flow in only one direction between the first and second terminals of the switching device.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: April 11, 2017
    Assignee: ASTEC INTERNATIONAL LIMITED
    Inventors: Zong Bo Hu, Ying Qu, Kevin Donald Wildash, Wai Kin Chan, Wing Ling Cheng
  • Publication number: 20170098044
    Abstract: A medical pad includes a piece of substrate with a major surface and an electric circuit on the major surface, a sensor connected with the electric circuit for measuring the electrical resistance of the electric circuit, and a wireless data transceiver or a radio frequency identification (RFID) tag electrically connected with the sensor for receiving results of the measuring from the sensor for subsequent transmission. The system carries out real time self-calibration to adaptively monitor the condition of a medical pad even in the face of changing environment and changing material properties.
    Type: Application
    Filed: October 6, 2015
    Publication date: April 6, 2017
    Inventors: Kin Yue Albert LAI, Cheuk Kuen Kenny Chan, Man Wai Law, Kwok Wah Sit, Ngai Yin Chan, Siu Chong Tin, Wai Kin Chan, Tak Leung Siu, Yick Ming Yeung, Jerry Garrett
  • Publication number: 20160213759
    Abstract: Provided herein are mutant asparaginase enzymes that lack glutaminase activity. Also provided are methods of treating ASNS-negative cancer cells with a glutaminase-free asparaginase.
    Type: Application
    Filed: September 10, 2014
    Publication date: July 28, 2016
    Inventors: Susan REMPE, David M. ROGERS, Andriy ANISHKIN, Sergei SUKHAREV, Philip L. LORENZI, Wai Kin CHAN, John N. WEINSTEIN
  • Publication number: 20150182135
    Abstract: A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. There are a plurality of light emitters and light detectors located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and receiving reflected light signals from the different areas of tissue surrounding the body part.
    Type: Application
    Filed: January 28, 2015
    Publication date: July 2, 2015
    Inventors: Chor Tin MA, Kai Kin CHAN, Ming Yip WONG, Kai Wai YEUNG, Fo CHAU
  • Publication number: 20150112457
    Abstract: The present invention discloses an electronic device and control method thereof. The electronic device according to the present invention comprises a main engine and a USB man-machine interface unit connected thereto; an illuminating source and a drive circuit thereof are arranged on the USB man-machine interface unit; the USB man-machine interface unit receives illuminating information sent by the main engine, generates a control command according to the illuminating information and sends the control command to the drive circuit so as to drive the illuminating source. Because the present invention sends the illuminating information to the USB man-machine interface unit through the main engine and then obtains the control command to switch on or off the illuminating source after processing the illuminating information through the USB man-machine interface unit, a user can participate in controlling the illuminating source so as to realize an illuminating effect expected by the user.
    Type: Application
    Filed: September 4, 2014
    Publication date: April 23, 2015
    Inventors: Chun Kin Chan, Chun Kit Chan, Hoi Kai Chan
  • Patent number: 8979762
    Abstract: A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. Light emitters and light detectors are located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and detecting reflected light signals from the different areas of tissue surrounding the body part.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: March 17, 2015
    Assignee: Well Being Digital Limited
    Inventors: Chor Tin Ma, Kai Kin Chan, Ming Yip Wong, Kai Wai Yeung, Fo Chau
  • Publication number: 20140220878
    Abstract: A gas release device for a coating process includes an upper plate, a first intermediate plate, a second intermediate plate, and a lower plate, four of which are superposed on each other from top to bottom. The upper plate is linked and communicates with the first intermediate plate through a first passage. The first intermediate plate is linked and communicates with the second intermediate plate through at least two second passages. The second intermediate plate is linked with the lower plate through at least four third passages. The lower plate includes at least four ventholes. In light of this, after a gas of a vapor deposition source enters the inlet, the gas of the same amount can be released out of each venthole to make the thickness of a thin film uniform for relatively higher quality of the coating process.
    Type: Application
    Filed: January 28, 2014
    Publication date: August 7, 2014
    Applicant: ADPV TECHNOLOGY LIMITED
    Inventors: Shiezen Steven HUANG, Ke-Feng LIAO, Wen-Bo LAI, Kwan-Kin CHAN, Sheng LI, Liang MENG, Jhao-Lung ZENG, Guan-Bi CHEN
  • Publication number: 20140216577
    Abstract: A gas release device is formed of two plates combined together. Each of the plates includes an intake groove. Each of the intake grooves is linked with a first distribution groove. Each of the first distribution grooves is linked with two second distribution grooves. Each of the second distribution grooves is linked with two third distribution grooves. Each of the third distribution grooves is linked with two fourth distribution grooves. Each of the fourth distribution grooves is linked with two fifth distribution grooves. Each of the fifth distribution grooves has a venthole. After a gas of a vapor deposition source enters the intake groove, the gas passes through the first, second, third, fourth, and fifth distribution grooves in order and then substantially equal amount of the gas is finally released out of each of the ventholes.
    Type: Application
    Filed: January 28, 2014
    Publication date: August 7, 2014
    Applicant: ADPV TECHNOLOGY LIMITED
    Inventors: Shiezen Steven HUANG, Ke-Feng LIAO, Wen-Bo LAI, Kwan-Kin CHAN, Sheng LI, Liang MENG, Jhao-Lung ZENG, Guan-Bi CHEN
  • Publication number: 20120326103
    Abstract: Organo-metallic complexes for opto-electronic and sensory devices and their use in such devices are provided. The organo-metallic complex (triplet emitter) consists of a metal center and chelate ligands. At least one of chelate ligands comprises an aromatic or fused aromatic ring(s). Each ligand is covalently substituted with at least one, preferably two charge transport groups (ctg). The metal center can be coordinated by a spectator ligand. Presence of two ctgs at each ligand is advantageous for applications in organic light emitting diodes (OLEDs). Charge transport units facilitate hole and/or electron transport to the molecular center and allow for efficient exciton formation directly on the complex. Presence of ctgs on each ligand provides good shielding with respect to interactions with the environment. Emission quenching is strongly reduced and materials with high emission quantum yields are obtained.
    Type: Application
    Filed: November 26, 2010
    Publication date: December 27, 2012
    Inventors: Shuk Kwan Mak, Wai Kin Chan, Tobias Fischer, Hartmut Yersin
  • Publication number: 20120249395
    Abstract: An ultra thin antenna (100, 200) is disclosed as having a rectangular path (102, 202) and at least one extender piece (104, 108, 110, 212) for extension of radio frequency (RF) energy out of the rectangular path (102, 202).
    Type: Application
    Filed: March 26, 2012
    Publication date: October 4, 2012
    Applicant: CONVERGENCE SYSTEMS LIMITED
    Inventors: Kin Yue Albert LAI, Yi Wan CHAN, Pik Chung YIU, Cheuk Kuen Kenny CHAN, Wai Kin CHAN, Siu Hong YEUNG, Ka Shun LAM, Jerry GARRETT
  • Publication number: 20120226214
    Abstract: The methods, procedures, kits, and devices described herein assist with the healing process of tissue that was previously or simultaneously treated for a therapeutic or cosmetic effect. The methods, procedures, kits, and devices described herein can also provide temporary simulated results of a cosmetic procedure to allow for visual assessment to select the type of procedure or for treatment planning in advance of the surgical procedure.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 6, 2012
    Applicant: Neodyne Biosciences, Inc.
    Inventors: Geoffrey C. Gurtner, Michael T. Longaker, Reinhold H. Dauskardt, Paul Yock, John A. Zepeda, Kenneth N. Horne, Bankim H. Mehta, Michael H. Rosenthal, Joseph Rimsa, Sergio Salinas, Melanie Harris, Greg Spooner, Kin Chan
  • Patent number: 8207779
    Abstract: A control circuit for controlling a switching device having a first terminal, a second terminal, and a control terminal is disclosed. The control circuit includes a first diode for coupling to the first terminal of the switching device, a second diode for coupling to the second terminal of the switching device, a first transistor for coupling to the control terminal of the switching device, and a second transistor coupled to the second diode. The first transistor is coupled to the first diode. The control circuit is configured to allow current flow in only one direction between the first and second terminals of the switching device.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: June 26, 2012
    Assignee: Astec International Limited
    Inventors: Zong Bo Hu, Ying Qu, Kevin Donald Wildash, Wai Kin Chan, Wing Ling Cheng
  • Patent number: 8185455
    Abstract: A system for auditing telecommunication billing data comprises a rule-construction user interface and an audit component. The rule-construction user interface comprises a plurality of rule condition parameter menus to construct an audit rule for at least one telecommunication billing attribute. In a particular embodiment, before baselining the audit rule, a user can test rule conditions against actual data, and the user can compare multiple versions of a single audit rule to determine which version successfully identifies exceptions. The audit component is to perform an audit of a telecommunication billing data set for exceptions to the audit rule constructed using the rule-construction user interface. Once identified, the exceptions can be assigned to additional tool users to assist in exception investigation and maintenance using an exception maintenance component.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: May 22, 2012
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Euly Legro, Gideon Juve, Kin Chan, Jorge Pastoral, Jr., Robert Rich, Kelly Stephenson, Jack Fine, Michael L. Peterson
  • Patent number: 8117888
    Abstract: A method and apparatus for calibrating or adjusting an accelerometer, wherein the accelerometer is held stationary to obtain the signal outputs from the accelerometer, representing component vectors making up the composite vector of 1 g. Thus, gain or sensitivity, and the zero-g signal offset along for each axis of the accelerometer is determined and adjustable.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: February 21, 2012
    Assignee: Perception Digital Limited
    Inventors: Kai Kin Chan, Chor Tin Ma