Patents by Inventor Yu-Min Chen
Yu-Min Chen 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: 12543608Abstract: A display device including a light source module and a wavelength conversion module is provided. The light source module includes a substrate, a plurality of first LED elements and a second LED element. The first LED elements are configured for providing a plurality of first color lights, and the second LED element is configured for providing a second color light. The wavelength conversion module is overlapped and arranged on the light source module, and the wavelength conversion module includes a wavelength conversion element and at least one dichroic filter layer. The wavelength conversion element is configured to absorb the first color lights emitted by a part of the first LED elements and excite a converted light beam, wherein a color of the converted light beam is different from that of the first color lights and the second color light.Type: GrantFiled: May 2, 2023Date of Patent: February 3, 2026Assignee: Coretronic CorporationInventors: Chien-Chih Chen, Ming-Wei Tsai, Chung-Jen Ou, Yu-Min Chen
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Patent number: 12495647Abstract: A light source device and a manufacturing method of the light source device is provided. The light source device includes a micro light-emitting element layer, a transparent substrate and a wavelength conversion module. The wavelength conversion module includes a first wavelength conversion layer, a second wavelength conversion layer, a light transmission layer, multiple barrier structures, multiple reflection layers and a light cut-off layer. The first wavelength conversion layer, the second wavelength conversion layer, and the light transmission layer are arranged in an arrangement direction. Any two of the first wavelength conversion layer, the second wavelength conversion layer, and the light transmission layer are separated from each other by one of the barrier structures. The reflection layers are located between the barrier structures and any one of a sidewall of the first wavelength conversion layer, a sidewall of the second wavelength conversion layer, and a sidewall of the light transmission layer.Type: GrantFiled: May 11, 2023Date of Patent: December 9, 2025Assignee: Coretronic CorporationInventors: Chien-Chih Chen, Ming-Wei Tsai, Chung-Jen Ou, Yu-Min Chen
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Publication number: 20240100352Abstract: A phototherapy device includes a base, at least one light conversion device and a light source module. The base has an installation slot. The light conversion device is detachably arranged in the installation slot. Each light conversion device includes a plurality of light conversion patterns. The light source module is arranged on a side of the base and configured to provide an excitation beam to the light conversion patterns, so that each of the light conversion patterns emits a converted beam. In this way, the light conversion device of the phototherapy device can be replaced according to the user's needs.Type: ApplicationFiled: September 19, 2023Publication date: March 28, 2024Inventors: CHUNG-JEN OU, YU-MIN CHEN, MING-WEI TSAI, CHIEN-CHIH CHEN
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Publication number: 20240068498Abstract: A fastener includes a bolt including a head and a threaded shank including a bare section proximate the head, an end section having a wider end and having a plurality of alternate grooves and ridges, an intermediate section proximate the end section and having a spiral trough, and a threaded section between the intermediate section and the bare section; and a hollow member including a head member and a malleable shank having a plurality of holes. The end section is tapered toward the intermediate section at an angle of 3-degree to 8-degree.Type: ApplicationFiled: October 30, 2023Publication date: February 29, 2024Inventor: Yu-Min Chen
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Publication number: 20230369546Abstract: A light source device and a manufacturing method of the light source device is provided. The light source device includes a micro light-emitting element layer, a transparent substrate and a wavelength conversion module. The wavelength conversion module includes a first wavelength conversion layer, a second wavelength conversion layer, a light transmission layer, multiple barrier structures, multiple reflection layers and a light cut-off layer. The first wavelength conversion layer, the second wavelength conversion layer, and the light transmission layer are arranged in an arrangement direction. Any two of the first wavelength conversion layer, the second wavelength conversion layer, and the light transmission layer are separated from each other by one of the barrier structures. The reflection layers are located between the barrier structures and any one of a sidewall of the first wavelength conversion layer, a sidewall of the second wavelength conversion layer, and a sidewall of the light transmission layer.Type: ApplicationFiled: May 11, 2023Publication date: November 16, 2023Applicant: Coretronic CorporationInventors: Chien-Chih Chen, Ming-Wei Tsai, Chung-Jen Ou, Yu-Min Chen
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Publication number: 20230369299Abstract: A display device including a light source module and a wavelength conversion module is provided. The light source module includes a substrate, a plurality of first LED elements and a second LED element. The first LED elements are configured for providing a plurality of first color lights, and the second LED element is configured for providing a second color light. The wavelength conversion module is overlapped and arranged on the light source module, and the wavelength conversion module includes a wavelength conversion element and at least one dichroic filter layer. The wavelength conversion element is configured to absorb the first color lights emitted by a part of the first LED elements and excite a converted light beam, wherein a color of the converted light beam is different from that of the first color lights and the second color light.Type: ApplicationFiled: May 2, 2023Publication date: November 16, 2023Applicant: Coretronic CorporationInventors: Chien-Chih Chen, Ming-Wei Tsai, Chung-Jen Ou, Yu-Min Chen
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Patent number: 11133231Abstract: A method for estimating film thickness in CMP includes the following operations. A substrate with a film formed thereon is disposed over a polishing pad with a slurry dispensed between the film and the polishing pad. A CMP operation is performed to reduce a thickness of the film. An in-situ electrochemical impedance spectroscopy (EIS) measurement is performed during the CMP operation by an EIS device to estimate the thickness of the film real-time. The CMP operation is ended when the estimated thickness of the film obtained from the fit parameters of the first equivalent electrical circuit model reaches a target thickness.Type: GrantFiled: March 27, 2018Date of Patent: September 28, 2021Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Yu-Min Chen, Chin-Wei Liang, Sheng-Chau Chen, Hsun-Chung Kuang
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Publication number: 20210221327Abstract: A lock apparatus includes a bracket, an engagement module, and an actuation module. The engagement module is supported in the bracket and has an engagement member configured to move to a first position or a second position in a first axial direction along the first axial direction. The actuation module is connected to the bracket and includes a pushing member. The actuation module drives the pushing member to move to a first position or a second position in the second axial direction along the second axial direction. When the pushing member is at the first position in the second axial direction, the engagement member is at the first position in the first axial direction. When the pushing member is at the second position in the second axial direction, the engagement member is at the second position in the first axial direction.Type: ApplicationFiled: August 31, 2020Publication date: July 22, 2021Inventors: Jung-Chi Huang, Chia-Hao Chang, Yu-Min Chen
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Publication number: 20210112639Abstract: AN LED driving apparatus includes a power stage circuit and a dimming control circuit. The power stage circuit drives an LED circuit. The dimming control circuit includes a duty ratio conversion circuit, a digital-to analog conversion (DAC) circuit, an error amplifier (EA) circuit and a modulation control circuit. The duty ratio conversion circuit converts a PWM dimming signal to a digital duty ratio signal. The DAC circuit converts the digital duty ratio signal to an analog reference signal. The EA circuit generates an error amplified signal according to a difference between the analog reference signal and an output current related signal. The modulation control circuit generates a PWM control signal according to the error amplified signal, to control the power switch, such that the output current relates to a dimming duty ratio, whereby the dimming control circuit dims the LED circuit according to the PWM dimming signal.Type: ApplicationFiled: April 16, 2020Publication date: April 15, 2021Inventors: Yu-Min Chen, Isaac Y. Chen, Leng-Nien Hsiu
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Patent number: 10980090Abstract: AN LED driving apparatus includes a power stage circuit and a dimming control circuit. The power stage circuit drives an LED circuit. The dimming control circuit includes a duty ratio conversion circuit, a digital-to analog conversion (DAC) circuit, an error amplifier (EA) circuit and a modulation control circuit. The duty ratio conversion circuit converts a PWM dimming signal to a digital duty ratio signal. The DAC circuit converts the digital duty ratio signal to an analog reference signal. The EA circuit generates an error amplified signal according to a difference between the analog reference signal and an output current related signal. The modulation control circuit generates a PWM control signal according to the error amplified signal, to control the power switch, such that the output current relates to a dimming duty ratio, whereby the dimming control circuit dims the LED circuit according to the PWM dimming signal.Type: GrantFiled: April 16, 2020Date of Patent: April 13, 2021Assignee: RICHTEK TECHNOLOGY CORPORATIONInventors: Yu-Min Chen, Isaac Y. Chen, Leng-Nien Hsiu
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Patent number: 10759382Abstract: A lock apparatus includes a bracket, an engagement module, and an actuation module. The engagement module is supported in the bracket and has an engagement member configured to move to a first position or a second position in a first axial direction along the first axial direction. The actuation module is connected to the bracket and includes a pushing member. The actuation module drives the pushing member to move to a first position or a second position in the second axial direction along the second axial direction. When the pushing member is at the first position in the second axial direction, the engagement member is at the first position in the first axial direction. When the pushing member is at the second position in the second axial direction, the engagement member is at the second position in the first axial direction.Type: GrantFiled: May 23, 2018Date of Patent: September 1, 2020Assignee: Gogoro Inc.Inventors: Jung-Chi Huang, Chia-Hao Chang, Yu-Min Chen
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Publication number: 20190157170Abstract: A method for estimating film thickness in CMP includes the following operations. A substrate with a film formed thereon is disposed over a polishing pad with a slurry dispensed between the film and the polishing pad. A CMP operation is performed to reduce a thickness of the film. An in-situ electrochemical impedance spectroscopy (EIS) measurement is performed during the CMP operation by an EIS device to estimate the thickness of the film real-time. The CMP operation is ended when the estimated thickness of the film obtained from the fit parameters of the first equivalent electrical circuit model reaches a target thickness.Type: ApplicationFiled: March 27, 2018Publication date: May 23, 2019Inventors: YU-MIN CHEN, CHIN-WEI LIANG, SHENG-CHAU CHEN, HSUN-CHUNG KUANG
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Publication number: 20180345906Abstract: A lock apparatus includes a bracket, an engagement module, and an actuation module. The engagement module is supported in the bracket and has an engagement member configured to move to a first position or a second position in a first axial direction along the first axial direction. The actuation module is connected to the bracket and includes a pushing member. The actuation module drives the pushing member to move to a first position or a second position in the second axial direction along the second axial direction. When the pushing member is at the first position in the second axial direction, the engagement member is at the first position in the first axial direction. When the pushing member is at the second position in the second axial direction, the engagement member is at the second position in the first axial direction.Type: ApplicationFiled: May 23, 2018Publication date: December 6, 2018Inventors: Jung-Chi Huang, Chia-Hao Chang, Yu-Min Chen
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Patent number: 9829452Abstract: Various examples are provided for corrosion detection in structural tendons. In one example, among others, a method includes injecting current through a portion of a tendon assembly including a tendon at least partially encased in grout, where the current is injected through the portion of the tendon assembly via contact points on a surface of the grout. A potential across the portion of the grout surface is measured and a condition of the tendon can be based at least in part upon the current and the potential. In another example, a system includes supply electrodes to inject current into grout surrounding a tendon via contact with a surface of the grout, sensor electrodes to measure a potential difference between the supply electrodes, and an impedance detection device to determine an impedance of the tendon based at least in part upon the injected current and the potential difference.Type: GrantFiled: October 8, 2014Date of Patent: November 28, 2017Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Mark E. Orazem, Yu-Min Chen, Christopher Alexander
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Patent number: 9407024Abstract: Multidirectional electrical connectors, electrical connector plugs and electrical connection systems for electrically connecting a portable energy storage device to an electrically powered device, such as an electric powered vehicle or a device for electrically charging the portable electrical energy storage device are described. The multidirectional feature of the electrical connectors, electrical connector plugs and electrical connections systems permits electrical connection between the electrical connectors and electrical connector plugs in a plurality of rotational orientations between a portable electrical energy storage device to which a connector or plug is electrically connected and an electrically powered device to which a corresponding plug or connector is electrically connected.Type: GrantFiled: August 10, 2015Date of Patent: August 2, 2016Assignee: GOGORO INC.Inventors: Yi-Tsung Wu, Sung-Ching Lin, Chen-Shin Hsu, Yu-Min Chen
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Publication number: 20160043505Abstract: Multidirectional electrical connectors, electrical connector plugs and electrical connection systems for electrically connecting a portable energy storage device to an electrically powered device, such as an electric powered vehicle or a device for electrically charging the portable electrical energy storage device are described. The multidirectional feature of the electrical connectors, electrical connector plugs and electrical connections systems permit electrical connection between the electrical connectors and electrical connector plugs in a plurality of rotational orientations between a portable electrical energy storage device to which a connector or plug is electrically connected and an electrically powered device to which a corresponding plug or connecter is electrically connected.Type: ApplicationFiled: August 10, 2015Publication date: February 11, 2016Inventors: Yi-Tsung WU, Sung-Ching LIN, Chen-Shin HSU, Yu-Min CHEN
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Patent number: 9055649Abstract: The present invention discloses a control circuit and a control method of a light emitting device circuit. When the light emitting device circuit is normally connected in normal operation, an output current is regulated to a predetermined current. When the light emitting device circuit is removed, an output voltage is regulated to a predetermined voltage. When the light emitting device circuit is reconnected, the output current is regulated to the predetermined current. The output voltage is at or above a level when the light emitting device circuit is normally connected in normal operation, and the predetermined voltage is lower than this level.Type: GrantFiled: August 23, 2013Date of Patent: June 9, 2015Assignee: Richtek Technology CorporationInventors: Pei-Yuan Chen, Yu-Min Chen, Leng-Nien Hsiu
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Publication number: 20150097589Abstract: Various examples are provided for corrosion detection in structural tendons. In one example, among others, a method includes injecting current through a portion of a tendon assembly including a tendon at least partially encased in grout, where the current is injected through the portion of the tendon assembly via contact points on a surface of the grout. A potential across the portion of the grout surface is measured and a condition of the tendon can be based at least in part upon the current and the potential. In another example, a system includes supply electrodes to inject current into grout surrounding a tendon via contact with a surface of the grout, sensor electrodes to measure a potential difference between the supply electrodes, and an impedance detection device to determine an impedance of the tendon based at least in part upon the injected current and the potential difference.Type: ApplicationFiled: October 8, 2014Publication date: April 9, 2015Inventors: Mark E. Orazem, Yu-Min Chen, Christopher Alexander
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Publication number: 20140352763Abstract: A frame of a photovoltaic panel includes at least one L-shaped corner joint at least one first frame body and at least one second frame body. The L-shaped corner joint includes a support, a first joint arm and a second joint arm respectively disposed on different surfaces of the support, wherein the first joint arm and the second joint arm respectively have at least one first riveting hole and at least one second riveting hole. The first frame body has a first engaging groove therebetween. The first joint arm is inserted in the first engaging groove. Part of the first inner frame plate is caved in the first riveting hole. The second frame body has a second engaging groove. The second joint arm is inserted in the second engaging groove. Part of the second inner frame plate is caved in the second riveting hole.Type: ApplicationFiled: July 31, 2013Publication date: December 4, 2014Applicant: Gintech Energy CorporationInventors: Yu-Min CHEN, Jiunn-Chenn LU, Hsu-Ting CHANG, Chih-Ching CHEN
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Patent number: 8737044Abstract: A moving module and an electronic device are provided. The electronic device includes a first body, a second body, and the moving module disposed between the first and second bodies. The moving module includes a rail, a moving element, and an elastic element. The moving element is in contact with the rail. The elastic element is connected between the moving element and the first body. When the moving element moves from a first end of the rail to a curved portion of the rail, a force exerted on the elastic element by the moving element is gradually increased. When the moving element passes the curved portion, an elastic restoration force of the elastic element drives the moving element to move toward a second end of the rail. When the moving element reaches the first end or the second end, the first body and the second body interfere with each other.Type: GrantFiled: May 5, 2010Date of Patent: May 27, 2014Assignee: HTC CorporationInventors: Chen-Kuang Liu, Yu-Min Chen, Cheng-Te Chen