Patents by Inventor Jan Ma
Jan Ma 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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Publication number: 20240160109Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.Type: ApplicationFiled: November 14, 2023Publication date: May 16, 2024Inventors: Yue Ma, Antonius Theodorus Wilhelmus Kempen, Klaus Martin Hummler, Johannes Hubertus Josephina Moors, Jeroen Hubert Rommers, Hubertus Johannes Van De Wiel, Andrew David Laforge, Fernando Brizuela, Rob Carlo Wieggers, Umesh Prasad Gomes, Elena Nedanovska, Celal Korkmaz, Alexander Downn Kim, Rui Miguel Duarte Rodrigues Nunes, Hendrikus Alphonsus Ludovicus Van Dijck, William Peter Van Drent, Peter Gerardus Jonkers, Qiushi Zhu, Parham Yaghoobi, Jan Steven Christiaan Westerlaken, Martinus Hendrikus Antonius Leenders, Alexander Igorevich Ershov, Igor Vladimirovich Fomenkov, Fei Liu, Johannes Henricus Wilhelmus Jacobs, Alexey Sergeevich Kuznetsov
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Patent number: 11983944Abstract: Computer-implemented methods for detecting objects within digital image data based on color transitions include: receiving or capturing a digital image depicting an object; sampling color information from a first plurality of pixels of the digital image, wherein each of the first plurality of pixels is located in a background region of the digital image; assigning each pixel a label of either foreground or background using an adaptive label learning process; binarizing the digital image based on the labels assigned to each pixel; detecting contour(s) within the binarized digital image; and defining edge(s) of the object based on the detected contour(s). Corresponding systems and computer program products configured to perform the inventive methods are also described.Type: GrantFiled: February 27, 2023Date of Patent: May 14, 2024Assignee: KOFAX, INC.Inventors: Jiyong Ma, Stephen M. Thompson, Jan W. Amtrup
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Patent number: 11967164Abstract: Systems, methods and computer program products for detecting objects using a multi-detector are disclosed, according to various embodiments. In one aspect, a computer-implemented method includes defining analysis profiles, where each analysis profile: corresponds to one of a plurality of detectors, and comprises: a unique set of analysis parameters and/or a unique detection algorithm. The method further includes analyzing image data in accordance with the analysis profiles; selecting an optimum analysis result based on confidence scores associated with different analysis results; and detecting objects within the optimum analysis result. According to additional aspects, the analysis parameters may define different subregions of a digital image to be analyzed; a composite analysis result may be generated based on analysis of the different subregions by different detectors; and the optimum analysis result may be based on the composite analysis result.Type: GrantFiled: April 13, 2023Date of Patent: April 23, 2024Assignee: KOFAX, INC.Inventors: Jiyong Ma, Stephen M. Thompson, Jan W. Amtrup
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Patent number: 10058716Abstract: Disclosed is a micro-emulsifier comprising a stack of piezoelectric materials, a horn at a proximal end of the stack of piezoelectric materials, and a transmission wire receivable in the horn for transmission of ultrasound waves able to be produced by the stack of piezoelectric materials. The ultrasound waves are able to be produced in a direction parallel to a longitudinal axis of the stack of piezoelectric materials and the horn. The transmission wire comprises a first end receivable in the horn and a second end remote from the first end, the second end having a bulb thereon.Type: GrantFiled: September 3, 2008Date of Patent: August 28, 2018Assignee: Nanyang Technological UniversityInventors: Jan Ma, Adrian Fatt Hoe Low, Yin Chiang Boey
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Patent number: 9709583Abstract: The present disclosure relates to the identification of components in a sample based on the chemical nature of the component. In particular, although not exclusively, the present disclosure relates to the identification of hydrophobic and hydrophilic components using a mass spectrometric technique. The present invention also relates to kits and products used in the identification of the components, as well as other subject matter.Type: GrantFiled: August 20, 2009Date of Patent: July 18, 2017Assignees: NANYANG TECHNOLOGICAL UNIVERSITYInventors: Frederick Rowell, Jan Ma, Angelina Yi Mei Lim
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Patent number: 9410542Abstract: An ultrasonic fluid pressure generator for generating high pressure head in a fluid. The ultrasonic fluid pressure generator comprises a transducer comprising a piezoelectric actuator and a displacement amplifier, the displacement amplifier having a fluid channel therethrough, the displacement amplifier being connected to the piezoelectric actuator at one end and having a free vibrating tip at another end; a reflecting condenser disposed at the vibrating tip of the displacement amplifier to form a gap between the vibrating tip and a reflecting surface of the reflecting condenser; and a casing configured for establishing a standing wave in the fluid contained within the casing, the transducer and the reflecting condenser being at least in part within the casing.Type: GrantFiled: December 22, 2009Date of Patent: August 9, 2016Assignee: NANYANG TECHNOLOGICAL UNIVERSITYInventors: Freddy Yin Chiang Boey, Jan Ma, Tao Li
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Patent number: 8668474Abstract: An electro-active, valveless pump having a pumping chamber with at least one chamber wall. There is at least one opening in the at least one chamber wall. An electro-active actuator is located over each of the openings for inducing fluid flow.Type: GrantFiled: July 7, 2011Date of Patent: March 11, 2014Assignee: Nanyang Technological UniversityInventors: Yin Chiang Boey, Jan Ma
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Publication number: 20130314844Abstract: A method of preparing a reduced graphene oxide foam, the method comprising the steps of: preparing a colloidal suspension of graphene oxide; forming a graphene oxide compact layered film from the colloidal suspension of graphene oxide using flow-directed assembly; and chemically reducing the graphene oxide compact layered film using a chemical reducing agent to form a porous and continuous cross-linked structure that is the reduced graphene oxide foam.Type: ApplicationFiled: May 23, 2013Publication date: November 28, 2013Applicant: NANYANG TECHNOLOGICAL UNIVERSITYInventors: Xiaodong CHEN, Zhiqiang NIU, Jan MA
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Publication number: 20120275941Abstract: An ultrasonic fluid pressure generator for generating high pressure head in a fluid. The ultrasonic fluid pressure generator comprises a transducer comprising a piezoelectric actuator and a displacement amplifier, the displacement amplifier having a fluid channel therethrough, the displacement amplifier being connected to the piezoelectric actuator at one end and having a free vibrating tip at another end; a reflecting condenser disposed at the vibrating tip of the displacement amplifier to form a gap between the vibrating tip and a reflecting surface of the reflecting condenser; and a casing configured for establishing a standing wave in the fluid contained within the casing, the transducer and the reflecting condenser being at least in part within the casing.Type: ApplicationFiled: December 22, 2009Publication date: November 1, 2012Applicant: NANYANG TECHNOLOGICAL UNIVERSITYInventors: Freddy Yin Chiang Boey, Jan Ma, Tao Li
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Patent number: 8262567Abstract: A tissue retractor for retracting tissue opened by an incision, the tissue retractor including a base support unit having a topside and an underside. The topside has at least one securing mechanism and the underside is conformable and removably attachable to a surface proximate to the incision. The tissue retractor has a tissue hook having a tissue engagement portion and a mounting portion, the tissue engagement portion capable of engaging at least the periphery of the incision. The tissue retractor has a retractable member substantially inelastic in its central longitudinal axis and bendable in any axes deviating from the central longitudinal axis. The retractable member receives the mounting portion of the tissue hook, the retractable member being removably attachable to said securing mechanism on the topside of the base support unit, and being retractable away from the incision, such that the tissue engagement portion retracts tissue engaged thereto.Type: GrantFiled: February 22, 2007Date of Patent: September 11, 2012Assignees: Insightra Medical, Inc., Nanyang Technological UniversityInventors: Brad Sharp, Stephen Graham Bell, Wayne Arthur Noda, Laxmikant Khanolkar, Meng Pheng Tan, Yin Chiang Boey, Jan Ma, Erwin Merijn Woterson
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Patent number: 8137315Abstract: A self-contained pump is disclosed that is an integrated pump. It has a reservoir, a pumping mechanism, and at least one outlet. The pumping mechanism is for controlled compression of the reservoir to force a required volume of fluid in the reservoir through the at least one outlet.Type: GrantFiled: June 28, 2007Date of Patent: March 20, 2012Assignee: Nanyang Technological UniversityInventors: Yin Chiang Freddy Boey, Jan Ma, Erwin Merijin Wouterson
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Publication number: 20110268594Abstract: An electro-active, valveless pump having a pumping chamber with at least one chamber wall. There is at least one opening in the at least one chamber wall. An electro-active actuator is located over each of the openings for inducing fluid flow.Type: ApplicationFiled: July 7, 2011Publication date: November 3, 2011Inventors: Yin Chiang Freddy Boey, Jan Ma
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Publication number: 20110151569Abstract: The present disclosure relates to the identification of components in a sample based on the chemical nature of the component. In particular, although not exclusively, the present disclosure relates to the identification of hydrophobic and hydrophilic components using a mass spectrometric technique. The present invention also relates to kits and products used in the identification of the components, as well as other subject matter.Type: ApplicationFiled: August 20, 2009Publication date: June 23, 2011Applicants: ROAR PARTICLES UK LIMITED, NANOFRONTIER PTE LTDInventors: Frederick Rowell, Jan Ma, Angelina Yi Mei Lim
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Publication number: 20110027376Abstract: The present invention refers to a method of synthesizing a multi-walled microsphere comprising at least one hydrophilic active compound as well as to a multi-walled microsphere obtained by the method of the present invention. The present invention further refers pharmaceutical compositions including multi-walled microspheres of the present invention.Type: ApplicationFiled: December 2, 2008Publication date: February 3, 2011Inventors: Yin Chiang Freddy Boey, Jan Ma, Zheng Wang
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Patent number: 7876025Abstract: A tubular piezoelectric transducer comprising a tube of piezoelectric material and having a plurality of external electrodes for inducing in a first end of the tube at least one movement of a plurality of possible movements; at least two spokes attached to and extending radially inwardly of the tube for movement with the first end; a hub at an inner end of the at least two spokes and being located on the longitudinal axis of the tube, the hub being attached to the at least two spokes for movement therewith; the hub being for receiving therein a probe for movement of the probe with the hub. A phaco-probe incorporating the transducer is also disclosed.Type: GrantFiled: September 7, 2006Date of Patent: January 25, 2011Assignees: Nanyang Technological University, Tan Tock Seng HospitalInventors: Jan Ma, Freddy Y. C. Boey, Tock Han Lim
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Publication number: 20100057097Abstract: Disclosed is a micro-emulsifier comprising a stack of piezoelectric materials, a horn at a proximal end of the stack of piezoelectric materials, and a transmission wire receivable in the horn for transmission of ultrasound waves able to be produced by the stack of piezoelectric materials. The ultrasound waves are able to be produced in a direction parallel to a longitudinal axis of the stack of piezoelectric materials and the horn. The transmission wire comprises a first end receivable in the horn and a second end remote from the first end, the second end having a bulb thereon.Type: ApplicationFiled: September 3, 2008Publication date: March 4, 2010Inventors: Jan Ma, Adrian Fatt Hoe Low, Yin Chiang Boey
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Publication number: 20090312709Abstract: A self-contained pump is disclosed that is an integrated pump. It has a reservoir, a pumping mechanism, and at least one outlet. The pumping mechanism is for controlled compression of the reservoir to force a required volume of fluid in the reservoir through the at least one outlet.Type: ApplicationFiled: June 28, 2007Publication date: December 17, 2009Inventors: Yin Chiang Freddy Boey, Jan Ma, Erwin Merijin Wouterson
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Publication number: 20080315720Abstract: A tubular piezoelectric transducer comprising a tube of piezoelectric material and having a plurality of external electrodes for inducing in a first end of the tube at least one movement of a plurality of possible movements; at least two spokes attached to and extending radially inwardly of the tube for movement with the first end; a hub at an inner end of the at least two spokes and being located on the longitudinal axis of the tube, the hub being attached to the at least two spokes for movement therewith; the hub being for receiving therein a probe for movement of the probe with the hub. A phaco-probe incorporating the transducer is also disclosed.Type: ApplicationFiled: September 7, 2006Publication date: December 25, 2008Inventors: Jan Ma, Freddy Y.C. Boey, Tock Han Lim
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Publication number: 20070232864Abstract: A tissue retractor for retracting tissue opened by an incision, said tissue retractor including a base support unit having a topside and an underside. The topside comprises at least one securing mechanism and the underside is adapted to be conformable and to be removably attachable to a surface proximate to the incision. The tissue retractor also includes at least one tissue hook having a tissue engagement portion and a mounting portion, wherein the tissue engagement portion is capable of engaging at least the periphery of the incision. The tissue retractor also includes at least one retractable member substantially inelastic in its central longitudinal axis and bendable in any axes deviating from said central longitudinal axis.Type: ApplicationFiled: February 22, 2007Publication date: October 4, 2007Inventors: Brad Sharp, Stephen Graham Bell, Wayne Arthur Noda, Laxmikant Khanolkar, Meng Pheng Tan, Yin Chiang Boey, Jan Ma, Erwin Merijn Wouterson
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Publication number: 20070085449Abstract: An electro-active, valveless pump having a pumping chamber with at least one chamber wall. There is at least one opening in the at least one chamber wall. An electro-active actuator is located over each of the openings for inducing fluid flow.Type: ApplicationFiled: October 13, 2005Publication date: April 19, 2007Applicant: NANYANG TECHNOLOGICAL UNIVERSITYInventors: Yin Chiang Boey, Jan Ma