Patents by Inventor Jieh-Hwa Shyu
Jieh-Hwa Shyu 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).
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Patent number: 8789708Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.Type: GrantFiled: October 30, 2013Date of Patent: July 29, 2014Assignee: Entegris, Inc.Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
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Patent number: 8668093Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.Type: GrantFiled: May 11, 2011Date of Patent: March 11, 2014Assignee: Entegris, Inc.Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
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Publication number: 20140048476Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.Type: ApplicationFiled: October 30, 2013Publication date: February 20, 2014Applicant: Entegris, Inc.Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
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Patent number: 8155896Abstract: Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a fluid flow device can be calibrated using a single standard calibration fluid. The fluid flow of a first fluid through a flow meter is measured by calculating a first pressure difference between pressures sensed by two pressure sensors of the flow meter. The fluid flow of a second fluid through the flow meter is measured by calculating a second pressure difference between pressures sensed by the same two pressure sensors. A calibration coefficient is determined based upon the relationship between the flow rate, the fluid density and the calculated pressure difference for the first and second fluids. A relationship between the calibration coefficient and the kinematic viscosity of each fluid is then determined and stored.Type: GrantFiled: January 28, 2011Date of Patent: April 10, 2012Assignee: Entegris, Inc.Inventors: Christopher Wargo, J. Karl Niermeyer, Jieh-Hwa Shyu, Craig L. Brodeur, William Basser
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Publication number: 20110248043Abstract: Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a fluid flow device can be calibrated using a single standard calibration fluid. The fluid flow of a first fluid through a flow meter is measured by calculating a first pressure difference between pressures sensed by two pressure sensors of the flow meter. The fluid flow of a second fluid through the flow meter is measured by calculating a second pressure difference between pressures sensed by the same two pressure sensors. A calibration coefficient is determined based upon the relationship between the flow rate, the fluid density and the calculated pressure difference for the first and second fluids. A relationship between the calibration coefficient and the kinematic viscosity of each fluid is then determined and stored.Type: ApplicationFiled: January 28, 2011Publication date: October 13, 2011Inventors: Christopher Wargo, J. Karl Niermeyer, Jieh-Hwa Shyu, Craig L. Brodeur, William Basser
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Patent number: 8015995Abstract: One embodiment of the present invention can include a flow control device that comprises an inlet, an outlet in fluid communication with the inlet, a pressure sensor, which may or may not be the only pressure sensor of the fluid control device, and a controller coupled to the pressure sensor. The controller can be configured to generate a valve control signal based on a measured pressure at a single pressure sensor.Type: GrantFiled: May 10, 2010Date of Patent: September 13, 2011Assignee: Entegris, Inc.Inventors: Craig L. Brodeur, Marc Laverdiere, Robert F. McLoughlin, J. Karl Niermeyer, Jieh-Hwa Shyu
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Publication number: 20110210063Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.Type: ApplicationFiled: May 11, 2011Publication date: September 1, 2011Inventors: Jijun GE, Alketa Gjoka, Jieh-Hwa Shyu
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Patent number: 7963401Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.Type: GrantFiled: March 28, 2007Date of Patent: June 21, 2011Assignee: Entegris, Inc.Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
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Patent number: 7885773Abstract: Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a fluid flow device can be calibrated using a single standard calibration fluid. The fluid flow of a first fluid through a flow meter is measured by calculating a first pressure difference between pressures sensed by two pressure sensors of the flow meter. The fluid flow of a second fluid through the flow meter is measured by calculating a second pressure difference between pressures sensed by the same two pressure sensors. A calibration coefficient is determined based upon the relationship between the flow rate, the fluid density and the calculated pressure difference for the first and second fluids. A relationship between the calibration coefficient and the kinematic viscosity of each fluid is then determined and stored.Type: GrantFiled: October 17, 2008Date of Patent: February 8, 2011Assignee: Entegris, Inc.Inventors: Christopher Wargo, J. Karl Niermeyer, Jieh-Hwa Shyu, Craig L. Brodeur, William Basser
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Publication number: 20100320142Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.Type: ApplicationFiled: March 28, 2007Publication date: December 23, 2010Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
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Publication number: 20100236643Abstract: One embodiment of the present invention can include a flow control device that comprises an inlet, an outlet in fluid communication with the inlet, a pressure sensor, which may or may not be the only pressure sensor of the fluid control device, and a controller coupled to the pressure sensor. The controller can be configured to generate a valve control signal based on a measured pressure at a single pressure sensor.Type: ApplicationFiled: May 10, 2010Publication date: September 23, 2010Inventors: Craig L. Brodeur, Marc Laverdiere, Robert F. McLoughlin, J. Karl Niermeyer, Jieh-Hwa Shyu
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Patent number: 7740024Abstract: One embodiment of the present invention can include a flow control device a flow control device that comprises an inlet, an outlet in fluid communication with the inlet, a pressure sensor, which may or may not be the only pressure sensor of the fluid control device, and a controller coupled to the pressure sensor. The controller can be configured to generate a valve control signal based on a measured pressure at a single pressure sensor.Type: GrantFiled: February 9, 2005Date of Patent: June 22, 2010Assignee: Entegris, Inc.Inventors: Craig L. Brodeur, Marc Laverdiere, Robert F. McLoughlin, J. Karl Niermeyer, Jieh-Hwa Shyu
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Patent number: 7610117Abstract: One embodiment of the present invention can include a flow control device comprising an inlet, an outlet, a pressure loss element between the inlet and outlet, a pressure sensor located upstream from the constriction configured to measure a first pressure of a fluid flowing through the flow control device, a pressure sensor located downstream from the constriction, configured to measure a second pressure of the fluid flowing through the flow control device; and a controller coupled to the first pressure sensor and the second pressure sensor to generate a valve drive signal. The controller can generate a valve control signal based on a differential between the first pressure and the second pressure during a first mode of operation. The controller can also generate a valve control signal based on a measured pressure at a particular pressure sensor during a second mode of operation. The mode of operation can automatically switch.Type: GrantFiled: September 19, 2005Date of Patent: October 27, 2009Assignee: Entegris, Inc.Inventors: Craig L. Brodeur, Marc Laverdiere, Robert F. McLoughlin, J. Karl Niermeyer, Jieh-Hwa Shyu
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Publication number: 20090113985Abstract: Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a fluid flow device can be calibrated using a single standard calibration fluid. The fluid flow of a first fluid through a flow meter is measured by calculating a first pressure difference between pressures sensed by two pressure sensors of the flow meter. The fluid flow of a second fluid through the flow meter is measured by calculating a second pressure difference between pressures sensed by the same two pressure sensors. A calibration coefficient is determined based upon the relationship between the flow rate, the fluid density and the calculated pressure difference for the first and second fluids. A relationship between the calibration coefficient and the kinematic viscosity of each fluid is then determined and stored.Type: ApplicationFiled: October 17, 2008Publication date: May 7, 2009Applicant: ENTEGRIS, INC.Inventors: Christopher Wargo, J. Karl Niermeyer, Jieh-Hwa Shyu, Craig L. Brodeur, William Basser
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Patent number: 7447600Abstract: Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a valve can be adjusted by application of fuzzy logic which involves quantizing input variables into the degree to which a small set of logical values is true. In one embodiment, variables related to flow rate and change in flow rate over time can be compared to membership functions to generate fuzzy inputs, based upon which fuzzy outputs can be generated.Type: GrantFiled: August 31, 2007Date of Patent: November 4, 2008Assignee: Entegris, Inc.Inventors: Christopher Wargo, J. Karl Niermeyer, Jieh-Hwa Shyu, Craig L. Brodeur, William Basser
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Patent number: 7387661Abstract: A contactor for effecting passage through a membrane from a first fluid a second fluid is provided. A cylindrical pleated membrane cartridge is positioned within a housing having a first inlet and a first outlet from a first fluid and at lest a second outlet for a second fluid. At least one baffle is positioned within a first flow path for the first fluid.Type: GrantFiled: April 22, 2004Date of Patent: June 17, 2008Assignee: Entegris, Inc.Inventors: Qunwei Wu, Craig L. Brodeur, Jieh-Hwa Shyu, Eric McNamara
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Publication number: 20080033901Abstract: Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a valve can be adjusted by application of fuzzy logic which involves quantizing input variables into the degree to which a small set of logical values is true. In one embodiment, variables related to flow rate and change in flow rate over time can be compared to membership functions to generate fuzzy inputs, based upon which fuzzy outputs can be generated.Type: ApplicationFiled: August 31, 2007Publication date: February 7, 2008Inventors: Christopher Wargo, J. Niermeyer, Jieh-Hwa Shyu, Craig Brodeur, William Basser
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Patent number: 7316728Abstract: The present invention is directed to an apparatus for combining a component from a fluid composition with a reactive fluid. The apparatus includes a hollow fiber contactor (142) having a plurality of hollow fibers contained within a housing. A reactive fluid (224), which may be on the shell or lumen side of the hollow fiber membrane, is included in the apparatus and is used for combining with a component from a fluid composition which is on the opposite side of the membrane from the reactive liquid. The reactive liquid combines with one or more components from the fluid composition and can be used for purification of the fluid composition or for the preparation of chemical reagents.Type: GrantFiled: May 27, 2003Date of Patent: January 8, 2008Assignee: Entegris, Inc.Inventors: Bipin Parekh, Saksatha Ly, Jieh-Hwa Shyu, John E. Pillion
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Patent number: 7311808Abstract: A device and method for increasing the mass transport rate of a chemical or electrochemical process at the solid and fluid interface in a fluid cell. The device includes a membrane in close contact with surface of the work piece, to separate the process cell into two chambers, so that fluid velocity at the work piece is controlled separately from the main cell flow. Thus the diffusion boundary layer is controlled and minimized by the rate that fluid is withdrawn from the work piece chamber.Type: GrantFiled: May 2, 2003Date of Patent: December 25, 2007Assignee: Entegris, Inc.Inventors: Qunwei Wu, Craig L. Brodeur, John E. Pillion, Jieh Hwa Shyu
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Publication number: 20070289732Abstract: This invention relates to an apparatus for conditioning the temperature of a fluid by utilizing a thermoplastic heat exchange apparatus comprised of a plurality of hollow tubes. The apparatus controls the temperature of a process fluid inside the heat exchanger by adjustment of a control valve that regulates the flow of an exchange fluid. The apparatus can be used to maintain the temperature of chemical baths and also to prepare discreet dispensed volumes of temperature controlled liquid.Type: ApplicationFiled: June 18, 2007Publication date: December 20, 2007Inventors: John Pillion, Jieh-Hwa Shyu, Alicia LaForge, Robert McLoughlin