Kha
Catherine N. Kha, Raleigh, NC US
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20120082641 | FORMULATIONS FOR BOVINE GRANULOCYTE COLONY STIMULATING FACTOR AND VARIANTS THEREOF - This invention provides stable aqueous formulations comprising a bG-CSF polypeptide or a variant thereof, a buffer substance, and an excipient, wherein said formulation is substantially free of polyoxyethylene (20) sorbitan monolaurate. The invention also provides methods of using, a lyophilized or powdered form of, and processes for, preparing the formulation. | 04-05-2012 |
Henry Hy Kha, Norwood, MA US
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20090041810 | Immunostimulating polyphosphazene compounds for intradermal immunization - Disclosed are intradermally administered products and methods for producing an immune response in a human or in an animal comprising an antigen and a polyphosphazene polyelectrolyte adjuvant in an amount effective to elicit an immune response in the human or in the animal against said antigen. | 02-12-2009 |
Hung Nien Kha, Canberra AU
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20100276955 | TREATMENT OF RAILWAY WHEELS - A method of treating a steel railway wheels to form a required distribution of compressive residual stress in the rim. In general terms the wheel heated and then quenched from the plate towards the rim. The wheel is first heated to form austenite throughout the plate and rim portions. The wheel is then cooled to form bainite/martensite in the plate portion. The wheel is cooled to form bainite/martensite in an inner portion of the rim. The wheel is cooled to form bainite/martensite in an outer portion of the rim. | 11-04-2010 |
Kim Ly Kha, Tai Po HK
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20150200596 | Control Circuits And Methods For Regulating Output Voltages Using Multiple And/Or Adjustable Reference Voltages - Methods of regulating an output voltage of a switched mode power supply having a variable input voltage and a power switch include adjusting a reference voltage to adjust a duty cycle of a control signal for the power switch. The reference voltage may be adjusted as a function of the duty cycle, in response to the duty cycle of the control signal being outside a defined range and/or in the response to a temperature within the switched mode power supply being above a threshold temperature. Other methods include selecting a reference voltage from a plurality of reference voltages based on a determined input voltage and generating a control signal for the power switch as a function of the selected reference voltage to adjust the duty cycle of the control signal. Switched mode power supplies and control circuits for implementing the methods are also disclosed. | 07-16-2015 |
20150200597 | Control Circuits And Methods For Regulating Output Voltages Using Multiple And/Or Adjustable Reference Voltages - Methods of regulating an output voltage of a switched mode power supply having a variable input voltage and a power switch include adjusting a reference voltage to adjust a duty cycle of a control signal for the power switch. The reference voltage may be adjusted as a function of the duty cycle, in response to the duty cycle of the control signal being outside a defined range and/or in the response to a temperature within the switched mode power supply being above a threshold temperature. Other methods include selecting a reference voltage from a plurality of reference voltages based on a determined input voltage and generating a control signal for the power switch as a function of the selected reference voltage to adjust the duty cycle of the control signal. Switched mode power supplies and control circuits for implementing the methods are also disclosed. | 07-16-2015 |
20150200598 | Control Circuits And Methods For Regulating Output Voltages Using Multiple And/Or Adjustable Reference Voltages - Methods of regulating an output voltage of a switched mode power supply having a variable input voltage and a power switch include adjusting a reference voltage to adjust a duty cycle of a control signal for the power switch. The reference voltage may be adjusted as a function of the duty cycle, in response to the duty cycle of the control signal being outside a defined range and/or in the response to a temperature within the switched mode power supply being above a threshold temperature. Other methods include selecting a reference voltage from a plurality of reference voltages based on a determined input voltage and generating a control signal for the power switch as a function of the selected reference voltage to adjust the duty cycle of the control signal. Switched mode power supplies and control circuits for implementing the methods are also disclosed. | 07-16-2015 |
Nghia Kha, Diamond Bar, CA US
Patent application number | Description | Published |
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20100021183 | RF Signal Power Regulation in Optical Transmitters - A circuit controlling the gain of an amplifier in an optical transmitter used for optical communication, including a detection circuit for measuring the power of the RF input to said laser; a gain controller for controlling a gain of said amplifier, and a switch connected to said gain controller, wherein said gain controller is adapted, in response to an activation of said switch, to: (i) automatically vary said gain of said amplifier, and (ii) set said gain of said amplifier at a level corresponding to a reduction in the noise and/or distortion associated with the transmitter. | 01-28-2010 |
20100158062 | Adapted Semiconductor Laser Package - An adapted semiconductor laser package that may convert a first type of package pin-out arrangement to a desired pin-out arrangement. The laser package may include a laser package including a laser, an isolator, a lens, a fiber sleeve, and a pin-out arrangement. The isolator and the fiber sleeve may be jointly arranged away from the laser. The laser package may also include an adapter with a first section with a plurality of holes geometrically arranged and mated with the package pin-out arrangement, a second section with an adapter pin-out arrangement with two rows of pins extending along opposite sides of the package, and electrical connections between the plurality of holes and the pins. | 06-24-2010 |