Patents by Inventor Kai-Nan An
Kai-Nan An 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: 20240365448Abstract: A driving device includes a pulse intensity modulation module, a pulse width modulation module, a pulse density modulation module, and a driving module. The pulse intensity modulation module receives an image processing signal related to a pixel and generates a pulse intensity according to the image processing signal. The pulse width modulation module receives the image processing signal and generates a pulse width according to the image processing signal. The pulse density modulation module receives the image processing signal and generates a pulse density according to the image processing signal. The driving module receives the pulse intensity, the pulse width, and the pulse density and generates a driving signal to the pixel according to the pulse intensity, the pulse width, and the pulse density.Type: ApplicationFiled: April 11, 2024Publication date: October 31, 2024Inventors: Kai-Hsiang SHIH, Zheng-Shou TUNG, Chien-Nan YEH, Jin-Shing TSENG
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Publication number: 20240304705Abstract: A semiconductor device includes a gate structure on a substrate, a first spacer on a sidewall of the gate structure, a second spacer on a sidewall of the first spacer, a third spacer on a sidewall of the second spacer, and first and second stacks of an epitaxial layer and a cap layer respectively disposed at first and second sides of the gate structure. Preferably, a part of the second spacer comprises an I-shape, the cap layer includes a planar top surface and an inclined sidewall, the cap layer contacts the second spacer and the third spacer directly, and the cap layer includes a vertical sidewall connected to the inclined sidewall.Type: ApplicationFiled: May 16, 2024Publication date: September 12, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Wei-Chih Chuang, Chia-Jong Liu, Kuang-Hsiu Chen, Chung-Ting Huang, Chi-Hsuan Tang, Kai-Hsiang Wang, Bing-Yang Jiang, Yu-Lin Cheng, Chun-Jen Chen, Yu-Shu Lin, Jhong-Yi Huang, Chao-Nan Chen, Guan-Ying Wu
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Publication number: 20240258160Abstract: A method includes depositing an etch stop layer over a first conductive feature, performing a first treatment to amorphize the etch stop layer, depositing a dielectric layer over the etch stop layer, etching the dielectric layer to form an opening, etching-through the etch stop layer to extend the opening into the etch stop layer, and filling the opening with a conductive material to form a second conductive feature.Type: ApplicationFiled: March 19, 2024Publication date: August 1, 2024Inventors: Jyh-Nan Lin, Chia-Yu Wu, Kai-Shiung Hsu, Ding-I Liu
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Patent number: 10842915Abstract: Provided herein are hip implant devices and related surgical methods. The hip implants and methods can optionally be used in patients of Asian descent.Type: GrantFiled: May 24, 2017Date of Patent: November 24, 2020Assignees: Excera Orthopedics, Inc., Mayo Foundation for Medical Education and ResearchInventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen, Xinyuan David Wang, James Zhiming Jiang
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Patent number: 10736621Abstract: Systems and methods for monitoring a mechanical force applied to a wound site repairing structure are disclosed. In an embodiment, the systems include a wound site repairing structure, a magnetoelastic sensor coupled to the wound site repairing structure, and a detection system. The detection system includes an excitation coil configured to transmit a signal to the magnetoelastic sensor and a detection coil configured to detect a signal indicative of a mechanical force applied to the wound site repairing structure. The detection system also includes a detection unit configured to detect the signal indicative of the mechanical force applied to the wound repairing structure.Type: GrantFiled: February 25, 2016Date of Patent: August 11, 2020Assignees: Mayo Foundation for Medical Education and Research, Michigan Technology UniversityInventors: Chunfeng Zhao, Kai-Nan An, Keat Ghee Ong, Andrew DeRouin
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Publication number: 20180049733Abstract: Systems and methods for monitoring a mechanical force applied to a wound site repairing structure are disclosed. In an embodiment, the systems include a wound site repairing structure, a magnetoelastic sensor coupled to the wound site repairing structure, and a detection system. The detection system includes an excitation coil configured to transmit a signal to the magnetoelastic sensor and a detection coil configured to detect a signal indicative of a mechanical force applied to the wound site repairing structure. The detection system also includes a detection unit configured to detect the signal indicative of the mechanical force applied to the wound repairing structure.Type: ApplicationFiled: February 25, 2016Publication date: February 22, 2018Inventors: Chunfeng Zhao, Kai-Nan An, Keat Chee Ong, Andrew DeRouin
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Publication number: 20170252482Abstract: Provided herein are hip implant devices and related surgical methods. The hip implants and methods can optionally be used in patients of Asian descent.Type: ApplicationFiled: May 24, 2017Publication date: September 7, 2017Inventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen, Xinyuan David Wang, James Zhiming Jiang
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Patent number: 9687586Abstract: Provided herein is a femoral component of a hip implant device, comprising a neck having a central axis; and a body distal to the neck and having a tapered portion, wherein the body has a largest cross section perpendicular to the neck central axis, the largest cross section perpendicular to the neck central axis having a maximum height dimension and a maximum width dimension, wherein the maximum width dimension is 18.5 mm or less. The hip implant can optionally be used in patients of Asian descent.Type: GrantFiled: March 24, 2011Date of Patent: June 27, 2017Assignee: Excera Orthopedics, Inc.Inventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen, Xinyuan David Wang, James Zhiming Jiang
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Publication number: 20160213478Abstract: Provided are acetabular cup implant assemblies that can be used in hip replacement surgery. Example assemblies comprise a shell and a liner. The liner can be positioned within a shell. Optionally, the liner can be rotated relative to the shell until the liner is seated in the shell in a position where the liner and shell can be secured to one another. Waveform-shaped features of the shell and liner can guide the relative rotation of the liner and shell. Also provided are methods of seating a liner in shell of an acetabular cup implant assembly.Type: ApplicationFiled: April 4, 2016Publication date: July 28, 2016Inventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen
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Publication number: 20160206358Abstract: An orthopedic fixation system includes a pedicle screw washer. The pedicle screw washer includes a body, an aperture for receiving a pedicle screw, a first securing member extending from the body spaced from the aperture and dimensioned to engage a first side of a transverse process of a vertebra, and a second securing member extending from the body spaced from the aperture and dimensioned apart from the first securing member to engage a second opposed side of the transverse process of the vertebra.Type: ApplicationFiled: January 21, 2016Publication date: July 21, 2016Inventors: Chunfeng Zhao, Kai-Nan An, Andrew R. Thoreson
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Patent number: 9301844Abstract: Provided are acetabular cup implant assemblies that can be used in hip replacement surgery. Example assemblies comprise a shell and a liner. The liner can be positioned within a shell. Optionally, the liner can be rotated relative to the shell until the liner is seated in the shell in a position where the liner and shell can be secured to one another. Waveform-shaped features of the shell and liner can guide the relative rotation of the liner and shell. Also provided are methods of seating a liner in shell of an acetabular cup implant assembly.Type: GrantFiled: December 1, 2014Date of Patent: April 5, 2016Assignee: Mayo Foundation For Medical Education and ResearchInventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen
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Patent number: 9125615Abstract: Method and system for non-invasive determination of a pressure characteristic associated with carpal tunnel (CT) region of a subject. Speed of a shear wave induced in the tissue of the subject and propagating through the CT region is measured at least once. The pressure characteristic is substantially proportional to determined speed.Type: GrantFiled: September 9, 2013Date of Patent: September 8, 2015Assignee: Mayo Foundation for Medical Education and ResearchInventors: Chunfeng Zhao, Yuexiang Wang, Kai-Nan An, Peter C. Amadio, Xiaoming Zhang, James F. Greenleaf, Bo Qiang
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Publication number: 20150245913Abstract: Provided are acetabular cup implant assemblies that can be used in hip replacement surgery. Example assemblies comprise a shell and a liner. The liner can be positioned within a shell. Optionally, the liner can be rotated relative to the shell until the liner is seated in the shell in a position where the liner and shell can be secured to one another. Waveform-shaped features of the shell and liner can guide the relative rotation of the liner and shell. Also provided are methods of seating a liner in shell of an acetabular cup implant assembly.Type: ApplicationFiled: December 1, 2014Publication date: September 3, 2015Inventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen
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Patent number: 8900319Abstract: Provided are acetabular cup implant assemblies that can be used in hip replacement surgery. Example assemblies comprise a shell and a liner. The liner can be positioned within a shell. Optionally, the liner can be rotated relative to the shell until the liner is seated in the shell in a position where the liner and shell can be secured to one another. Waveform-shaped features of the shell and liner can guide the relative rotation of the liner and shell. Also provided are methods of seating a liner in shell of an acetabular cup implant assembly.Type: GrantFiled: July 27, 2011Date of Patent: December 2, 2014Assignee: Mayo Foundation for Medical Education and ResearchInventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen
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Patent number: 8894707Abstract: This document relates to methods and materials involved in tendon or ligament tissue engineering. For example, methods and materials for generating a composite of acellular tendon or ligament allograft slices seeded with cells and bundled into a graft for tissue repair are provided.Type: GrantFiled: March 2, 2010Date of Patent: November 25, 2014Assignee: Mayo Foundation for Medical Education and ResearchInventors: Chunfeng Zhao, Yu-long Sun, Steven L. Moran, Kai-Nan An, Peter C. Amadio
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Patent number: 8795181Abstract: A system and method is provided for using dynamic ultrasonic imaging to analyze a subject's carpal tunnel and generate risk factors indicative of the health of the subject's subsynovial connective tissue and the subject's risk of developing carpal tunnel syndrome. The system and method uses speckle imaging techniques to track dynamic structures within the carpal tunnel and statistical analysis techniques to compare the properties of these dynamic structures of the subject to those of normal subjects and subjects having carpal tunnel syndrome.Type: GrantFiled: November 24, 2009Date of Patent: August 5, 2014Assignee: MAYO Foundation for Medical Education and ResearchInventors: Chunfeng Zhao, Kai-Nan An, Peter C. Amadio, Hector R. Villarraga, Yuichi Yoshii
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Publication number: 20140081136Abstract: Method and system for non-invasive determination of a pressure characteristic associated with carpal tunnel (CT) region of a subject. Speed of a shear wave induced in the tissue of the subject and propagating through the CT region is measured at least once. The pressure characteristic is substantially proportional to determined speed.Type: ApplicationFiled: September 9, 2013Publication date: March 20, 2014Inventors: Chunfeng Zhao, Yuexiang Wang, Kai-Nan An, Peter C. Amadio, Xiaoming Zhang, James F. Greenleaf, Bo Qiang
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Publication number: 20130131823Abstract: Provided are acetabular cup implant assemblies that can be used in hip replacement surgery. Example assemblies comprise a shell and a liner. The liner can be positioned within a shell. Optionally, the liner can be rotated relative to the shell until the liner is seated in the shell in a position where the liner and shell can be secured to one another. Waveform-shaped features of the shell and liner can guide the relative rotation of the liner and shell.Type: ApplicationFiled: July 27, 2011Publication date: May 23, 2013Applicant: Mayo Foundation for Medical Education and ResearchInventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen
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Publication number: 20130030543Abstract: Provided herein are hip implant devices and related surgical methods. The hip implants and methods can optionally be used in patients of Asian descent.Type: ApplicationFiled: March 24, 2011Publication date: January 31, 2013Applicants: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH, EXCERA ORTHOPEDICS, INC.Inventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen, Xinyuan David Wang, James Zhiming Jiang
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Patent number: 8216148Abstract: This disclosure describes methods for detecting early stages of disease, in particular carpal tunnel syndrome, by using cooperative ultrasound techniques. In a particular embodiment, a grayscale ultrasonogram may be used to detect local anatomical features within the carpal tunnel by physically moving a tendon and identifying the corresponding feature on the ultrasonogram display device. A high-resolution color Doppler ultrasound device may then be used to interrogate features of anatomy surrounding the tendon for disease. In a particular embodiment, the color Doppler ultrasound device may be used to measure the velocities of the tendon and surrounding anatomy, in particular the sub-synovial connective tissue; the resultant data may be used to quantify certain anatomical anomalies, indicative or non-indicative of carpal tunnel syndrome.Type: GrantFiled: July 2, 2007Date of Patent: July 10, 2012Assignee: Mayo Foundation for Medical Education and ResearchInventors: Peter C. Amadio, Chunfeng Zhao, Kai-Nan An, Marek Belohlavek, Mark E. Zobitz