Choi, Hong Kong
Chi Chuen Choi, Hong Kong CN
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20100089554 | Drum-based vapor chamber with an insertable wick system - A vapor chamber with an insertable wick system comprises two Coverskins and a Frame, where the insertable wick system provides at least a portion of a condensate flow path from the condensing surface to an evaporation region. The Coverskins are joined to the frame to form a “drum” enclosure whereby, similar to membranes on a drum, the two Coverskins resist deformation mainly through tensile forces along the plane of the skins, and thus much thinner materials could be used. The frame operates similar to the cylindrical body of a drum in providing the necessary bending resistance so as to keep the Coverskins in a state of relative tension when it is subject to external loading. The net result of this arrangement is that each component would largely be responsible for only one type of force (i.e., tension or bending), and thus a state of maximum efficiency could be achieved. Consequently, the strength of the Coverskins (to resist collapse) is less dependent on its thickness, and a state of minimum thickness is achieved. | 04-15-2010 |
Chung Fai Choi, Hong Kong CN
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20120007467 | COMMUTATOR - A commutator has a plurality of commutator segments fixed to an insulating support member. The commutator segments are formed by cold or hot forming a copper billet cut from a length of copper wire. Each billet has a volume approximately equal to the volume of one commutator segment. Each commutator segment has a main body and an anchor integrally formed with the main body. The commutator segments are spaced about a circle and then an insulating support member is molded to the commutator segments to fix the commutator segments to the support member. | 01-12-2012 |
Chung Lit Choi, Hong Kong CN
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20140271480 | USES OF INDOLE-KETONES OR INDOLIDONES AS NEURO-PROTECTIVE DRUGS - The present invention provides a method of using indole-ketone or indolidone to treat or prevent a neurodegenerative disease or disorder. In one embodiment, the neurodegenerative disease is Parkinson's disease. In another embodiment, the neurodegenerative disease or disorder is associated with excessive neuronal Nitric Oxide Synthase (nNOS) activity. Examples of indole-ketone include, but are not limited to, SU4312, SU5416, SU11248 (Sunitinib), and indirubin-3-oxime. | 09-18-2014 |
Hei Wai Choi, Hong Kong CN
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20120073849 | VARIABLE AMPLITUDE VIBRATORY APPLIANCE - A vibratory appliance includes a tool driven to oscillate by a rotary electric motor. A shaft supported, at an intermediate portion by a pivot, is driven by an orbital drive mechanism. The orbital drive mechanism includes a rotor rotated about a rotor axis by the motor, an elongate part, and a coupler. The elongate part and the coupler are each fixed to a respective one of the inner end and the rotor. The elongate part and the coupler are mutually connected for sliding movement relative to one another, between first and second relative positions in which the inner end orbits about the rotor axis at first and second orbital radii, respectively, to vary the amplitude of oscillation of the tool. | 03-29-2012 |
20120086290 | VARIABLE AMPLITUDE VIBRATORY APPLIANCE - A vibratory appliance includes a tool driven to oscillate by a rotary electric motor. A mechanism for converting rotary movement to oscillatory movement includes magnetic couplers moveable relative to one another. A displacement mechanism moves one of the magnetic couplers relative to the other magnetic coupler and varies the amplitude of oscillation of the tool. | 04-12-2012 |
Hoi Wai Choi, Hong Kong CN
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20120292788 | Chip stacking - Methods and systems are provided to utilize and manufacture a stacked chip assembly. Microelectronic or optoelectronic chips of any dimensions are directly stacked onto each other. The chips can be of substantially identical sizes. To enable forming the stacked chip assembly, trenches are laser micro-machined onto the bottom surface of a chip to accommodate the bond wedge/ball and wire path of the chip beneath it. Consequently, chips can be tightly integrated without a gap and without having to reserve space for the bond wedges/balls. | 11-22-2012 |
20130313517 | WHITE NANOLED WITHOUT REQUIRING COLOR CONVERSION - A nano-LED containing an array of nano-pillars of different diameters that are distributed over an emission area of an LED chip is capable of emitting broadband and white or nearly white light. Since each pillar emits light at a different wavelength according to its diameter and strain state, the overall emission spectral characteristics of the device is a combination of individual spectrum, giving rise to broadband emission. The spectral shape can be tailored for different shades of white emission, by controlling the distribution of the different diameter nano-pillars. The nano-pillars are patterned by nanosphere lithography. | 11-28-2013 |
Hon Man Choi, Hong Kong HK
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20110095014 | DOOR HINGE FOR A HOUSEHOLD APPLIANCE - A compact, low-cost hinge assembly for mounting a door to a household appliance. A stay bar has first and second elongate edge surfaces extending between opposing first and second ends. The first end is pivotally connected to a door-mounting bracket on which an abutment is located. A torsion spring is mounted to a body-mounting bracket, and an arm of the spring resiliently engages the first edge surface to urge the second surface into engagement with the abutment, urging the door, in a closed position, toward the closed position. A detent recess in the second surface receives the abutment to hold the door partially open. A stop face projects from the first edge surface, and the spring arm contacts the stop face to hold the door horizontal, in a fully open position. | 04-28-2011 |
Ho Wing Choi, Hong Kong CN
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20110199799 | SELF-DRIVEN AC-DC SYNCHRONOUS RECTIFIER FOR POWER APPLICATIONS - Systems, methods, and devices that employ self-driven gate-drive circuitry to facilitate controlling power switches to emulate a diode bridge to synchronously rectify a power signal are presented. A single-phase or multi-phase synchronous rectifier can comprise at least a first pair of switches of a first conducting path and a second pair of switches of a second conducting path that can form or emulate a diode bridge. To facilitate emulating turn-on and turn-off conditions of a diode, a switch can be turned on when voltage across the switch is forward-biased and turned off when switch current is reversed; also, there can be at least one current-controlled switch in each conducting path. Self-driven gate-drive circuitry employs low power components that can facilitate controlling respective switching of the at least first pair and second pair of switches, wherein switching of the switches is also controlled at start-up to emulate a diode bridge. | 08-18-2011 |
20150085547 | SELF-DRIVEN AC-DC SYNCHRONOUS RECTIFIER FOR POWER APPLICATIONS - Systems, methods, and devices that employ self-driven gate-drive circuitry to facilitate controlling power switches to emulate a diode bridge to synchronously rectify a power signal are presented. A single-phase or multi-phase synchronous rectifier can comprise at least a first pair of switches of a first conducting path and a second pair of switches of a second conducting path that can form or emulate a diode bridge. To facilitate emulating turn-on and turn-off conditions of a diode, a switch can be turned on when voltage across the switch is forward-biased and turned off when switch current is reversed; also, there can be at least one current-controlled switch in each conducting path. Self-driven gate-drive circuitry employs low power components that can facilitate controlling respective switching of the at least first pair and second pair of switches, wherein switching of the switches is also controlled at start-up to emulate a diode bridge. | 03-26-2015 |
King Yeung Choi, Hong Kong HK
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20080289981 | OPTICAL DISC PACKAGE - An optical disc package ( | 11-27-2008 |
20090205984 | OPTICAL MEDIA DISC CASE - A one-piece, injection-molded case ( | 08-20-2009 |
20100200441 | MULTIPLE DISC STORAGE CONTAINER - A disc storage container for holding multiple discs comprising, a front container cover, a back container cover, and a spine, and attachment means on the spine, the front container cover and back container cover being moveable between a container open position enabling access to the contents of the container and a container closed position for storage purposes. A multi-tray assembly for retaining a plurality of discs within the container, the multi-tray assembly comprising two connectors and two trays for retaining and holding discs, each connector comprising a container-engaging member for engaging to the attachment means on the spine of the container and two holding means for rotatably holding a respective tray, so that each tray can be rotated about the holding means of the connectors to allow access to the discs retained by the trays when the container is in a container open position. | 08-12-2010 |
Kwok-Wai Matthew Choi, Hong Kong CN
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20110009617 | Ruthenium Catalysts and Uses Thereof - Ruthenium nanoparticles supported on non-cross-linked soluble polystyrene were prepared by reacting [RuCl | 01-13-2011 |
Lung Wai Choi, Hong Kong HK
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20100257760 | ELECTRIC STEAM IRON WITH A LOW TEMPERATURE STEAM CONTROL SYSTEM - A low temperature steam control system of an electric steam iron includes a low temperature water discharge valve and a high temperature water discharge valve, which may be controlled by a low temperature bi-metal plate and a high temperature bi-metal plate respectively. Each bi-metal plate may include two overlaying metal plates with different thermal expansion coefficients. When the soleplate is heated by a heating element to a first temperature, the low temperature bi-metal plate can flex and open the low temperature water discharge valve allowing water to flow from a water tank into a vaporization chamber. When the soleplate is further heated by the heating element to a second temperature, the high temperature bi-metal plate can flex and open the high temperature water discharge valve allowing additional water to flow from the water tank into the vaporization chamber. | 10-14-2010 |
20100257761 | ELECTRIC IRON WITH A SYNCHRONIZING TEMPERATURE DISPLAY - An electric iron includes a control panel, a circuit board, and a temperature sensor provided on a soleplate. The temperature sensor is connected to the circuit board which is in turn connected to the control panel. The control panel includes a synchronizing temperature display, a temperature setting button, and a plurality of temperature setting indicators. The temperature setting button is employed to set a desired temperature, and the synchronizing temperature display is employed to indicate the actual temperature at the soleplate during ironing. | 10-14-2010 |
Lung Yau Choi, Hong Kong HK
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20110189922 | TOY FIGURES - Toy figures may include a torso, an elongate member extending from the torso, an articulation element, and a limb having a socket. The elongate member may include an end region. The articulation element may be molded substantially around the end region and may be received within the socket. The socket may be configured for pivotable movement about the articulation element. Some examples of toy figures may include a hip joint assembly. | 08-04-2011 |
Shing Yan Choi, Hong Kong HK
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20150162617 | Si@C core/shell Nanomaterials for High Performance Anode of Lithium Ion Batteries - The present invention is to tackle the volume expansion problem of the Si anode materials in the application of lithium ion batteries. In the present invention, a simple and green hydrothermal method is use to form loosely packed Si@C core/shell structure. A carbon coating layer is formed on controllably aggregated silicon nanoparticles in a one-step procedure by the hydrothermal carbonization of a carbon-rich precursor. | 06-11-2015 |
Sik-Sheung Choi, Hong Kong HK
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20110294383 | Inflatable device with electronic devices - An inflatable device that floats on water has an inflatable body that has a hollow interior, a speaker unit removably secured to the body, a battery box removably secured to the body, and wiring that electrically connects the speaker unit with the battery box. The wiring is housed inside a tube that extends inside the hollow interior of the body and exits the body at at least one exit location, the wiring including a first electrical connector that is removably coupled to the speaker unit, and a second electrical connector that is removably coupled to the battery box. | 12-01-2011 |
Siu Lui Shirley Choi, Hong Kong HK
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20100294682 | Computer Bag - The present utility model relates to a computer bag, comprising an upper part and a lower part, the combination of the two parts forms the space housing of the computer, wherein a damping device is set on the inner surfaces of both parts, the damping device consists of primer, plural strip bulging chests and heat dissipation areas, the strip bulging chests are configured on the primer with fillers inside, dissipation areas are set between every two bulging chests. Inside the computer bag, shock-absorbing damping bulging chests are provided with fillers inside, the bulging chests are made from Nylon or Polyester, and the fillers are made from EVA, HDPE and Memory Foam, featuring excellent damping effect, light weight and convenient carryover; EVA and HDPE are easy to be self-decomposed, without contaminating the environment; heat dissipation areas are set between every two bulging chests so that the heat of the computer can be rapidly dissipated. Meanwhile, strip bulging chests are configured on the inner surfaces of the straps of the bag with soft fillers inside so as to intensify the comfortable sensation when taking the computer bag. | 11-25-2010 |
Thomas Kyo Choi, Hong Kong HK
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20130295841 | PROCESS OF SPECTRUM DIVERSITY OF SATELLITE LINK FOR DATA AND INTERNET APPLICATIONS USING SINGLE ANTENNA AND ROUTER - A satellite communication system between a source and a destination over multiple satellite communications paths including first identifying the link performance established in multiple spectrums, performing a link comparison among the multiple spectrums (for example C-, Ku-, or Ka-Band) in order to determine a spectrum link that provides the highest throughput within an acceptable reliability criteria, and switching among the multiple spectrum links to provide that determined spectrum link between the source and the destination. | 11-07-2013 |
Tsang Ming Michael Choi, Hong Kong HK
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20160126505 | Solution Process Electron Transporting Layer for Polymer Light Emitting Diode - The present invention relates to a method for fabricating a solution-processed PLED including an electron transport layer. The electron transport layer, deposited on an emission layer by a solution process, provides the performance comparable to those processed by vacuum deposition. In addition, the method of the present invention is able to lower manufacturing cost and reduce time for fabrication. | 05-05-2016 |
Wai Pak Choi, Hong Kong HK
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20100074553 | METHOD AND APPARATUS OF LOCAL CONTRAST ENHANCEMENT - Methods and apparatuses of contrast enhancement on an image are disclosed. The method performs local shading of fine contrast variations in an image, with particular advantage in tone mapping applications. The amounts of shading are determined by the preferred degree of increased image contrast | 03-25-2010 |
20150029131 | METHODS AND APPARATUSES FOR RECOGNIZING MULTIPLE FINGERS ON CAPACITIVE TOUCH PANELS AND DETECTING TOUCH POSITIONS - A method is provided for recognizing touches by at least a finger on a touch panel and determining positions of the touches by analyzing a change in capacitance of electrodes of the touch panel. The change in capacitance is represented as at least an array. A digital signal processing unit and a touch panel that implement the method are also provided. | 01-29-2015 |
Wai Tat Choi, Hong Kong HK
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20130319896 | CLAMSHELL PACKAGING - A clamshell package includes a first clamshell portion having a first surface with a first edge, and a first chamber portion. A second clamshell portion is coupled to the first clamshell portion about a fold axis. The second clamshell portion has a second surface with a second edge, and a second chamber portion. A paper card includes a first card portion, a second card portion, and a connecting portion connecting the first card portion and the second card portion. The first card portion is coupled to the first surface. The second portion is coupled to the second surface. The first edge and second edge extend beyond a perimeter of the paper card. A hanging hole extends through the first clamshell portion, the second clamshell portion, and the paper card. | 12-05-2013 |
Wing Ho Choi, Hong Kong HK
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20150344365 | SELF-HEALING MATERIAL AND PREPARATION PROCESS THEREOF - The present application provides a self-healing material which comprises silica sol as self-healing agent encapsulated by a polymeric shell. The self-healing material may be further embedded in a concrete mixture to heal micro-cracks in concrete. A method for preparing the self-healing material is also provided. | 12-03-2015 |