Patents by Inventor Ing-Shouh Hwang
Ing-Shouh Hwang 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: 11309159Abstract: The present invention discloses a structure of an emitter electrode for enhancing ion currents, including a tip end part and a shank part. The tip end part has a pinpoint, a first diameter, and a radius of curvature. A length of the tip end part with the shank part is from the pinpoint to a first position of the shank part and a distance between the first position and the pinpoint is 300 times the first diameter. The radius of curvature of the tip end part ranges from 50 nanometers to 5 micrometers. The first diameter is 2 times the radius of curvature.Type: GrantFiled: August 23, 2021Date of Patent: April 19, 2022Assignee: ALES TECH INC.Inventors: Wei-Chaio Lai, Chun-Yueh Lin, Ing-Shouh Hwang, Wei-Tse Chang, Ching-Yu Hsiao, Yu-Fong Yu, Zong-Yu Yang
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Publication number: 20220068583Abstract: The present invention discloses a structure of an emitter electrode for enhancing ion currents, including a tip end part and a shank part. The tip end part has a pinpoint, a first diameter, and a radius of curvature. A length of the tip end part with the shank part is from the pinpoint to a first position of the shank part and a distance between the first position and the pinpoint is 300 times the first diameter. The radius of curvature of the tip end part ranges from 50 nanometers to 5 micrometers. The first diameter is 2 times the radius of curvature.Type: ApplicationFiled: August 23, 2021Publication date: March 3, 2022Inventors: Wei-Chaio Lai, Chun-Yueh Lin, Ing-Shouh Hwang, Wei-Tse Chang, Ching-Yu Hsiao, Yu-Fong Yu, Zong-Yu Yang
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Patent number: 9190938Abstract: A piezoelectric actuating device includes a carrier, at least a piezoelectric unit, at least a linked component and a moving component. The piezoelectric unit is disposed on the carrier and includes at least a piezoelectric buzzer. The linked component is disposed corresponding to the piezoelectric unit. One end of the linked component is attached to the piezoelectric buzzer. The moving component is connected with the linked component. When the piezoelectric buzzer is actuated, it can carry the linked component to move correspondingly so as to move the moving component. The piezoelectric actuating device has the advantage of low cost and can achieve the sub-nanometer scale actuating resolution.Type: GrantFiled: March 4, 2013Date of Patent: November 17, 2015Assignee: Academia SinicaInventors: En-Te Hwu, Ing-Shouh Hwang, Wei-Min Wang
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Patent number: 8966661Abstract: Disclosed is a method for fabricating a nanoscale probe. A first conductor and a second conductor are immersed into an electrolyte contained in an electrolytic tank. The first conductor and the second conductor are connected to a power source respectively. An electrolytic reaction is established when an electrical circuit is established between the first conductor and the second conductor. The second conductor is configured to output electrons. The first conductor is configured to receive electrons. Therefore, the first conductor is etched when the electrical circuit is established between the first conductor and the second conductor. A necking portion is created at the first conductor approximately near the surface of the electrolyte. A nanoscale probe is fabricated when first conductor breaks at the necking portion.Type: GrantFiled: July 23, 2013Date of Patent: February 24, 2015Assignee: Academia SinicaInventors: Wei-Tse Chang, Ing-Shouh Hwang
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Patent number: 8912707Abstract: An apparatus for actuating a positioning device includes a housing; a piezoelectric element connected to the housing; a driven element configured to move relative to the housing; and a flexible element connected to the piezoelectric element and configured to transfer a motion of the piezoelectric element to the driven element.Type: GrantFiled: July 13, 2011Date of Patent: December 16, 2014Assignee: Academia SinicaInventors: En-Te Hwu, Hsien-Shun Liao, Ing-Shouh Hwang
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Patent number: 8893627Abstract: A linear actuator includes a housing, a rotary unit disposed in the housing, and a screw member driven by the rotary unit. The rotary unit is translatable relative to the housing when the screw member is driven by the rotary unit.Type: GrantFiled: April 2, 2013Date of Patent: November 25, 2014Assignee: Academia SinicaInventors: En-Te Hwu, Ing-Shouh Hwang, Wei-Min Wang
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Publication number: 20140033374Abstract: Disclosed is a method for fabricating a nanoscale probe. A first conductor and a second conductor are immersed into an electrolyte contained in an electrolytic tank. The first conductor and the second conductor are connected to a power source respectively. An electrolytic reaction is established when an electrical circuit is established between the first conductor and the second conductor. The second conductor is configured to output electrons. The first conductor is configured to receive electrons. Therefore, the first conductor is etched when the electrical circuit is established between the first conductor and the second conductor. A necking portion is created at the first conductor approximately near the surface of the electrolyte. A nanoscale probe is fabricated when first conductor breaks at the necking portion.Type: ApplicationFiled: July 23, 2013Publication date: January 30, 2014Applicant: ACADEMIA SINICAInventors: WEI-TSE CHANG, ING-SHOUH HWANG
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Patent number: 8606426Abstract: A system includes a displacement sensor, an actuator connected to the displacement sensor, and a feedback unit. The displacement sensor is configured to measure at least one of a relative position and a relative orientation between the displacement sensor and the target object. The feedback unit receives a signal from the displacement sensor related to the measured relative position or relative orientation and controls the actuator to move the displacement sensor on the basis of variations in the received signal arising due to a change in environmental conditions.Type: GrantFiled: October 23, 2009Date of Patent: December 10, 2013Assignee: Academia SinicaInventors: Ing-Shouh Hwang, En-Te Hwu, Hans Ulrich Danzebrink, Hartmut Illers
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Publication number: 20130291669Abstract: A linear actuator includes a housing, a rotary unit disposed in the housing, and a screw member driven by the rotary unit. The rotary unit is translatable relative to the housing when the screw member is driven by the rotary unit.Type: ApplicationFiled: April 2, 2013Publication date: November 7, 2013Applicant: Academia SinicaInventors: En-Te HWU, Ing-Shouh HWANG, Wei-Min WANG
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Patent number: 8569932Abstract: A multi-axis actuating apparatus for a nano-positioning apparatus includes a movable element attached to a sample platform, a plurality of driving elements, and a plurality of actuators. The driving elements frictionally engage the movable element and are configured to selectively move the movable element along a first direction. The plurality of actuators move the plurality of driving elements when driving signals are applied to the plurality of actuators. Different driving signals may be applied to the plurality of actuators to cause different movement of the driving elements such that the movable element has different displacements in different directions along the plurality of driving elements. The movable element is titled due to the different displacements.Type: GrantFiled: October 4, 2011Date of Patent: October 29, 2013Assignee: Academia SinicaInventors: En-Te Hwu, Ing-Shouh Hwang
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Publication number: 20130015745Abstract: An apparatus for actuating a positioning device includes a housing; a piezoelectric element connected to the housing; a driven element configured to move relative to the housing; and a flexible element connected to the piezoelectric element and configured to transfer a motion of the piezoelectric element to the driven element.Type: ApplicationFiled: July 13, 2011Publication date: January 17, 2013Applicant: Academia SinicaInventors: En-Te Hwu, Hsien-Shun Liao, Ing-Shouh Hwang
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Publication number: 20120306317Abstract: A multi-axis actuating apparatus for a nano-positioning apparatus includes a movable element attached to a sample platform, a plurality of driving elements, and a plurality of actuators. The driving elements frictionally engage the movable element and are configured to selectively move the movable element along a first direction. The plurality of actuators move the plurality of driving elements when driving signals are applied to the plurality of actuators. Different driving signals may be applied to the plurality of actuators to cause different movement of the driving elements such that the movable element has different displacements in different directions along the plurality of driving elements. The movable element is titled due to the different displacements.Type: ApplicationFiled: October 4, 2011Publication date: December 6, 2012Applicant: Academia SinicaInventors: En-Te Hwu, Ing-Shouh Hwang
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Patent number: 8269157Abstract: A system includes an objective lens, an imaging module, and a measurement module. The objective lens is configured to receive light emitted by a light source, focus the emitted light onto a target object, and receive light reflected by the target object. The imaging module is configured to receive a first portion of the reflected light. The measurement module is configured to receive a second portion of the reflected light and includes a photo detector and an astigmatic lens configured to direct the second beam onto the photo detector.Type: GrantFiled: October 23, 2009Date of Patent: September 18, 2012Assignee: Academia SinicaInventors: Ing-Shouh Hwang, En-Te Hwu, Shao-Kang Hung
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Publication number: 20110095210Abstract: A system includes an objective lens, an imaging module, and a measurement module. The objective lens is configured to receive light emitted by a light source, focus the emitted light onto a target object, and receive light reflected by the target object. The imaging module is configured to receive a first portion of the reflected light. The measurement module is configured to receive a second portion of the reflected light and includes a photo detector and an astigmatic lens configured to direct the second beam onto the photo detector.Type: ApplicationFiled: October 23, 2009Publication date: April 28, 2011Applicant: Academia SinicaInventors: Ing-Shouh Hwang, En-Te Hwu, Shao-Kang Hung
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Publication number: 20110098926Abstract: A system includes a displacement sensor, an actuator connected to the displacement sensor, and a feedback unit. The displacement sensor is configured to measure at least one of a relative position and a relative orientation between the displacement sensor and the target object. The feedback unit receives a signal from the displacement sensor related to the measured relative position or relative orientation and controls the actuator to move the displacement sensor on the basis of variations in the received signal arising due to a change in environmental conditions.Type: ApplicationFiled: October 23, 2009Publication date: April 28, 2011Applicant: Academia SinicaInventors: Ing-Shouh Hwang, En-Te Hwu, Hans Ulrich Danzebrink, Hartmut Illers
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Patent number: 7804605Abstract: The present invention provides an optical multi-axis linear displacement measurement system and a method thereof, and the system can detect the reflected light from the top surface of the object so as to obtain multi-axis linear displacements of the object. The optical multi-axis linear displacement measurement system utilizes a non-contact optical method for obtaining multi-axis linear displacements of the object and it can perform simultaneous multi-axis linear displacement measurements. The advantages of the system and method include: high response speed (bandwidth) for dynamic measurement, simple structure, cost effective, and high sensitivity for displacement measurements.Type: GrantFiled: March 6, 2008Date of Patent: September 28, 2010Assignee: Academia SinicaInventors: Ing-Shouh Hwang, En-Te Hwu, Kuang-Yuh Huang
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Patent number: 7737414Abstract: A method for preparing an iridium tip with atomic sharpness. The method includes tapering an iridium wire to a needle shape and heating the iridium needle in an oxygen atmosphere. Also disclosed is an iridium needle having a pyramidal structure which terminates with a small number of atoms prepared by the methods.Type: GrantFiled: October 26, 2007Date of Patent: June 15, 2010Assignee: Academia SinicaInventors: Hong-Shi Kuo, Ing-Shouh Hwang, Tien T. Tsong, Tsu-Yi Fu
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Publication number: 20090225305Abstract: The present invention provides an optical multi-axis linear displacement measurement system and a method thereof, and the system can detect the reflected light from the top surface of the object so as to obtain multi-axis linear displacements of the object. The optical multi-axis linear displacement measurement system utilizes a non-contact optical method for obtaining multi-axis linear displacements of the object and it can perform simultaneous multi-axis linear displacement measurements. The advantages of the system and method include: high response speed (bandwidth) for dynamic measurement, simple structure, cost effective, and high sensitivity for displacement measurements.Type: ApplicationFiled: March 6, 2008Publication date: September 10, 2009Applicant: Academia SinicaInventors: Ing-Shouh Hwang, En-Te Hwu, Kuang-Yuh Huang
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Publication number: 20090110951Abstract: A method for preparing an iridium tip with atomic sharpness. The method includes tapering an iridium wire to a needle shape and heating the iridium needle in an oxygen atmosphere. Also disclosed is an iridium needle having a pyramidal structure which terminates with a small number of atoms prepared by the methods.Type: ApplicationFiled: October 26, 2007Publication date: April 30, 2009Applicant: Academia SinicaInventors: Hong-Shi Kuo, Ing-shouh Hwang, Tien T. Tsong, Tsu-Yi Fu
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Patent number: 7507320Abstract: This invention discloses an electrochemical method for the preparation of single atom tips to replace the traditional vacuum evaporation method. The invented method for preparation of single atom tips includes the following steps: A substrate single crystal metal wire etched electrochemically to form a tip. The surface of the metal tip is cleaned. A small quantity of noble metal is plated on the apex of the tip in low concentration noble metal electrolyte. Annealing in vacuum or in inert gas ambient to diffuse the additional electroplated noble metal atoms and thus a single atom tip is formed on the surface of the substrate. The present invention also discloses the single atom tip so prepared. The single atom tip of this invention has only a very small number of atoms, usually only one atom, at its apex.Type: GrantFiled: October 9, 2004Date of Patent: March 24, 2009Assignee: Academia SinicaInventors: Ing-Shouh Hwang, Hong-Shi Kuo, Tien T. Tsong, Tsu-Yi Fu