Patents by Inventor Man Wai Chan

Man Wai 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).

  • Publication number: 20230400297
    Abstract: A camera module is manufactured by attaching a lens module to an image sensor. The lens module includes at least one lens element which has a plurality of centers of curvature. A tilt angle of an imaging axis of the image sensor is determined, and a tilt angle of an optical axis of the lens module is also determined by using an optical device to identify locations of multiple centers of curvature of the at least one lens element included in the lens module. At least one of the lens module and the image sensor are then adjusted accordingly so that the imaging axis and the optical axis are aligned, and thereafter, the lens module is fixedly attached with respect to the image sensor to form the camera module.
    Type: Application
    Filed: May 20, 2022
    Publication date: December 14, 2023
    Inventors: Ying San CHUI, Kwok Yuen CHEUNG, Hei Lam CHANG, Man Wai CHAN, Po Lam AU
  • Patent number: 9504296
    Abstract: A male touch fastener strip includes an elongated base having a thickness and defining a longitudinal direction and a lateral direction perpendicular to the longitudinal direction across the base between longitudinal edges of the base, and a field of male fastener elements each having a stem extending from a broad face of the base and a head at an upper end of the stem and overhanging the base for engaging fibers. The fastener element stems and broad face of the base together form a unitary mass of resin. The male touch fastener strip also includes a pair of longitudinal barrier walls rising from the broad face of the base on either side of the field of male fastener elements, and a plurality of lateral barrier walls. Each of the lateral barrier walls extends between facing surfaces of the longitudinal barrier walls to define a longitudinal column of bounded fastening cells that each contain one or more male fastener elements.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: November 29, 2016
    Assignee: Velcro BVBA
    Inventors: Michael Cina, Paul Joseph Voigt, Man Wai Chan
  • Publication number: 20150164186
    Abstract: A male touch fastener strip includes an elongated base having a thickness and defining a longitudinal direction and a lateral direction perpendicular to the longitudinal direction across the base between longitudinal edges of the base, and a field of male fastener elements each having a stem extending from a broad face of the base and a head at an upper end of the stem and overhanging the base for engaging fibers. The fastener element stems and broad face of the base together form a unitary mass of resin. The male touch fastener strip also includes a pair of longitudinal barrier walls rising from the broad face of the base on either side of the field of male fastener elements, and a plurality of lateral barrier walls. Each of the lateral barrier walls extends between facing surfaces of the longitudinal barrier walls to define a longitudinal column of bounded fastening cells that each contain one or more male fastener elements.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 18, 2015
    Inventors: Michael Cina, Paul Joseph Voigt, Man Wai Chan
  • Patent number: 9034452
    Abstract: A male touch fastener strip includes an elongated base and a field of male fastener elements. The male touch fastener strip also includes longitudinal barrier walls rising from the broad face of the base on either side of the field of male fastener elements, and a pair of segmented walls. Each segmented wall and its nearest longitudinal barrier wall define therebetween a foam relief space. Each segmented wall defines a flow gap for allowing the foam material to enter the foam relief space.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: May 19, 2015
    Assignee: Velcro Industries B.V.
    Inventors: Michael Cina, Paul Joseph Voigt, Man Wai Chan
  • Patent number: 8973359
    Abstract: A wave powered generating device includes a floating vessel with onboard pendulum mechanism, an anchor with a mooring chain connected with the vessel, a lever arm, an upstanding post having a tip connected with the lever arm and a foot coupled with a universal coupler, a pendulum moveably mounted on the lever arm being erected above a platform deck of the vessel by the upstanding post, a gear mechanism incorporating with a centrifugal flywheel coupled with the universal coupler via a transmission mechanism for delivery of momentum of the pendulum, and a power generating mechanism driven by the gear mechanism. Under undulating waves, the pendulum, being mounted on the lever arm, sways laterally around an axis of the upstanding post, causing the upstanding post to rotate hence delivering the momentum of the pendulum to drive the power generating mechanism via a transmission shaft and the gear mechanism.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: March 10, 2015
    Inventor: Man Wai Chan
  • Publication number: 20140375058
    Abstract: A wave powered generating device includes a floating vessel with onboard pendulum mechanism, an anchor with a mooring chain connected with the vessel, a lever arm, an upstanding post having a tip connected with the lever arm and a foot coupled with a universal coupler, a pendulum moveably mounted on the lever arm being erected above a platform deck of the vessel by the upstanding post, a gear mechanism incorporating with a centrifugal flywheel coupled with the universal coupler via a transmission mechanism for delivery of momentum of the pendulum, and a power generating mechanism driven by the gear mechanism. Under undulating waves, the pendulum, being mounted on the lever arm, sways laterally around an axis of the upstanding post, causing the upstanding post to rotate hence delivering the momentum of the pendulum to drive the power generating mechanism via a transmission shaft and the gear mechanism.
    Type: Application
    Filed: October 11, 2013
    Publication date: December 25, 2014
    Inventor: Man Wai CHAN
  • Patent number: 8787223
    Abstract: A system and method for distributing signals from a first communications network and a second communications network to a location, including a base transceiver station configured to receive a signal from the first communications network and convert the signal into an RF signal for transmission to a mobile terminal, the RF signal having an RF frequency above a threshold frequency, and a coupling module configured to: receive the RF signal from the base transceiver station and receive a data signal from the second communications network, the data signal having an RF frequency below the threshold frequency; combine the RF signal and the data signal into a combined signal with the RF signal and data signal each retaining their respective frequencies; and provide the combined signal over a coaxial cable link to the location.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: July 22, 2014
    Assignee: Rogers Communications Inc.
    Inventors: Lawrence Edward Watson, John Michael Chapeskie, Lawrence Tae Young Lee, Phillip Man Wai Chan, Phing Chu Chang
  • Publication number: 20140132477
    Abstract: A vertically interleaved in-building distributed antenna system is described. The in-building distributed antenna system includes a multiple-input and multiple-output (MIMO) radio. The MIMO radio includes a first branch connector and a second branch connector. The in-building distributed antenna system further includes a first branch transport medium coupled to the first branch connector and a second branch transport medium coupled to the second branch connector. The in-building distributed antenna system further includes a plurality of antennas. The plurality of antennas includes one or more first branch antennas coupled to the first branch transport medium and one or more second branch antennas coupled to the second branch transport medium. The first branch antennas are vertically interleaved with the second branch antennas in the structure.
    Type: Application
    Filed: January 22, 2014
    Publication date: May 15, 2014
    Applicant: Rogers Communications Inc.
    Inventors: Phillip Man Wai CHAN, Marc-Eric Thomas DRAPER, Peng CHEN, Phing Chu CHANG
  • Patent number: 8669916
    Abstract: A vertically interleaved in-building distributed antenna system is described. The in-building distributed antenna system includes a multiple-input and multiple-output (MIMO) radio. The MIMO radio includes a first branch connector and a second branch connector. The in-building distributed antenna system further includes a first branch transport medium coupled to the first branch connector and a second branch transport medium coupled to the second branch connector. The in-building distributed antenna system further includes a plurality of antennas. The plurality of antennas includes one or more first branch antennas coupled to the first branch transport medium and one or more second branch antennas coupled to the second branch transport medium. The first branch antennas are vertically interleaved with the second branch antennas in the structure.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: March 11, 2014
    Assignee: Rogers Communications Inc.
    Inventors: Phillip Man Wai Chan, Marc-Eric Thomas Draper, Peng Chen, Phing Chu Chang
  • Patent number: 8470130
    Abstract: A die detachment apparatus for partially delaminating a die from an adhesive tape on which it is mounted comprises a cover having a support surface that is operative to support the adhesive tape, the support surface including a set of cover holes. A movable pin chuck is positioned below the support surface and includes a set of pin holes that are arranged coaxially with the cover holes. The movable pin chuck is configured for detachably inserting a set of pins in a first desired configuration on some of the pin holes, and the pins are also operable to be relocated on the pin chuck to form another desired configuration. The pins are operative to protrude from the cover by passing through the cover holes to contact and lift the die.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: June 25, 2013
    Assignee: ASM Assembly Automation Ltd
    Inventors: Chi Ming Chong, Jin Hui Meng, Man Wai Chan, Yuk Cheung Au
  • Publication number: 20130070772
    Abstract: A system and method for distributing signals from a first communications network and a second communications network to a location, including a base transceiver station configured to receive a signal from the first communications network and convert the signal into an RF signal for transmission to a mobile terminal, the RF signal having an RF frequency above a threshold frequency, and a coupling module configured to: receive the RF signal from the base transceiver station and receive a data signal from the second communications network, the data signal having an RF frequency below the threshold frequency; combine the RF signal and the data signal into a combined signal with the RF signal and data signal each retaining their respective frequencies; and provide the combined signal over a coaxial cable link to the location.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 21, 2013
    Applicant: ROGERS COMMUNICATIONS INC.
    Inventors: Lawrence Edward Watson, John Michael Chapeskie, Tae Young Lawrence Lee, Phillip Man Wai Chan, Phing Chu Chang
  • Publication number: 20130050054
    Abstract: A vertically interleaved in-building distributed antenna system is described. The in-building distributed antenna system includes a multiple-input and multiple-output (MIMO) radio. The MIMO radio includes a first branch connector and a second branch connector. The in-building distributed antenna system further includes a first branch transport medium coupled to the first branch connector and a second branch transport medium coupled to the second branch connector. The in-building distributed antenna system further includes a plurality of antennas. The plurality of antennas includes one or more first branch antennas coupled to the first branch transport medium and one or more second branch antennas coupled to the second branch transport medium. The first branch antennas are vertically interleaved with the second branch antennas in the structure.
    Type: Application
    Filed: August 26, 2011
    Publication date: February 28, 2013
    Applicant: ROGERS COMMUNICATIONS INC.
    Inventors: Phillip Man Wai CHAN, Marc-Eric Thomas DRAPER, Peng CHEN, Phing Chu CHANG
  • Publication number: 20130011941
    Abstract: A semiconductor die is attached onto a substrate on a process platform during manufacturing of a semiconductor package. A dispenser dispenses an adhesive onto the substrate, and the semiconductor die is bonded onto the adhesive which has been dispensed onto the substrate with a bonding tool. Thereafter, a bond line thickness between a bottom surface of the semiconductor die and a top surface of the substrate on the process platform is measured using a measuring device.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 10, 2013
    Inventors: Man Wai CHAN, Shiu Kei LAM, Wan Yin YAU, Kwok Yuen CHEUNG
  • Patent number: 8141612
    Abstract: A die detachment device for delaminating a die which is mounted at a position on an adhesive film comprises a plurality of movable plates having quadrilateral-shaped contact surfaces which are arranged adjacent to one another. The plurality of movable plates comprises an intermediate movable plate and outer movable plates on opposite sides of the intermediate movable plate. The contact surfaces of the movable plates together form a combined contact surface for supporting the adhesive film at the position of the die, each movable plate being movable relative to the other movable plates towards and away from the die.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: March 27, 2012
    Assignee: ASM Assembly Automation Ltd
    Inventors: Man Wai Chan, Yuk Cheung Au, Kwok Wai Wong, Chi Ming Chong
  • Patent number: 8092645
    Abstract: During detachment of a die from an adhesive tape, the inner and outer portions of a first side of the die which is in contact with the adhesive tape is supported with a support surface. A collet contacts the inner and outer portions of a second side of the die opposite to the first side. Support is withdrawn from the outer portion of the die such that the outer portion of the second side of the die bends away from the collet while the support surface only supports the inner portion of the die. Vacuum suction from the collet is applied to attract the outer portion of the die towards the collet and the vacuum suction pressure is monitored until a threshold pressure is reached indicating that the outer portion of the die is contacting the collet. Thereafter, the collet is lifted while holding the die with vacuum suction to completely separate the die from the adhesive tape.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: January 10, 2012
    Assignee: ASM Assembly Automation Ltd
    Inventors: Siu Ping Yip, Chi Ming Chong, Man Wai Chan, Kwok Wai Wong
  • Publication number: 20110192547
    Abstract: During detachment of a die from an adhesive tape, the inner and outer portions of a first side of the die which is in contact with the adhesive tape is supported with a support surface. A collet contacts the inner and outer portions of a second side of the die opposite to the first side. Support is withdrawn from the outer portion of the die such that the outer portion of the second side of the die bends away from the collet while the support surface only supports the inner portion of the die. Vacuum suction from the collet is applied to attract the outer portion of the die towards the collet and the vacuum suction pressure is monitored until a threshold pressure is reached indicating that the outer portion of the die is contacting the collet. Thereafter, the collet is lifted while holding the die with vacuum suction to completely separate the die from the adhesive tape.
    Type: Application
    Filed: February 5, 2010
    Publication date: August 11, 2011
    Inventors: Siu Ping YIP, Chi Ming CHONG, Man Wai CHAN, Kwok Wai WONG
  • Publication number: 20110088845
    Abstract: A die detachment apparatus for partially delaminating a die from an adhesive tape on which it is mounted comprises a cover having a support surface that is operative to support the adhesive tape, the support surface including a set of cover holes. A movable pin chuck is positioned below the support surface and includes a set of pin holes that are arranged coaxially with the cover holes. The movable pin chuck is configured for detachably inserting a set of pins in a first desired configuration on some of the pin holes, and the pins are also operable to be relocated on the pin chuck to form another desired configuration. The pins are operative to protrude from the cover by passing through the cover holes to contact and lift the die.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 21, 2011
    Inventors: Chi Ming CHONG, Jin Hui MENG, Man Wai CHAN, Yuk Cheung AU
  • Publication number: 20100252205
    Abstract: A die detachment device for delaminating a die which is mounted at a position on an adhesive film comprises a plurality of movable plates having quadrilateral-shaped contact surfaces which are arranged adjacent to one another. The plurality of movable plates comprises an intermediate movable plate and outer movable plates on opposite sides of the intermediate movable plate. The contact surfaces of the movable plates together form a combined contact surface for supporting the adhesive film at the position of the die, each movable plate being movable relative to the other movable plates towards and away from the die.
    Type: Application
    Filed: April 2, 2009
    Publication date: October 7, 2010
    Inventors: Man Wai CHAN, Yuk Cheung AU, Kwok Wai WONG, Chi Ming CHONG
  • Patent number: 7402778
    Abstract: An oven is provided for curing or reflowing compounds on objects, such as lead frames or other substrates. The oven comprises a heating chamber, a heating assembly mounted in thermal communication with the heating chamber to provide heat thereto, and a support assembly for supporting the object in the heating chamber for heating. The heating assembly and support assembly are configured to be movable relative to one another for controllably positioning the object at variable distances with respect to the heating assembly. Heating of the object according to a heating profile can thus be achieved by controlled heating of the object at different temperatures by positioning the object at different distances with respect to the heating assembly during the heating process although there is a single heating zone.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: July 22, 2008
    Assignee: ASM Assembly Automation Ltd.
    Inventors: Kin Yik Hung, Srikanth Narasimalu, Wei Ling Chan, Man Wai Chan, Cheuk Wah Tang, Kai Chiu Wu
  • Patent number: 6367669
    Abstract: Fluid dispensing apparatus for dispensing small precise metered quantities of fluid, for example in a semiconductor manufacturing process, comprises two metering chambers disposed in series. Each metering chamber has an associated piston rod and fluid is dispensed therefrom alternately. Twice the volume of fluid is displaced from the upstream metering chamber so that when it dispenses fluid at the same time it can refill the second downstream metering chamber.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: April 9, 2002
    Assignee: ASM Assembly Automation Ltd.
    Inventors: Yuk Cheung Au, Man Wai Chan