Patents Assigned to Cheng
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Patent number: 11695310Abstract: A motor, a cooling device, and a cooling method are disclosed. The cooling device is mounted on a stator of the motor. The cooling device includes a sleeve and a spiral duct. A wall of the sleeve has a spiral groove extending along the sleeve. The sleeve is sleeved onto the stator. The spiral duct is mounted in the spiral groove. The spiral duct has a first spiral form corresponding to the spiral groove, so that the spiral duct is correspondingly installed in the spiral groove. The spiral duct has a second spiral form extending along the spiral duct. A twisted spiral cooling channel is formed along the spiral pathway. A cooling fluid flowing through the twisted spiral cooling channel is subjected to the continuously changing cross-section of the twisted spiral cooling channel to enhance the swirl intensity, thereby improving the convection heat transfer effectiveness.Type: GrantFiled: November 30, 2020Date of Patent: July 4, 2023Assignee: National Cheng Kung UniversityInventors: Mi-Ching Tsai, Shyy-Woei Chang, Min-Fu Hsieh, Kai-Jung Shih, Wei-Ling Cai, Jen-Hsiang Liu
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Publication number: 20230201129Abstract: Disclosed herein are electrospun fibrous matrix and its production method. The method mainly includes the steps of, mixing a first polymer and a drug to form a first mixture, and sonicating the first mixture until a plurality of microparticles are formed with the drug encapsulated therein; and mixing the plurality of microparticles with a second polymer to form a second mixture, subjecting the second mixture to a wet electrospinning process to form the electrospun fibrous matrix. The thus-produced electrospun fibrous matrix is characterized by having a plurality of first and second fibrils woven together, in which each second fibril has a plurality of drug-encapsulated microparticles independently integrated and disposed along the longitudinal direction of the second fibril. Also encompassed in the present disclosure is a method for treating a wound of a subject. The method includes applying the present electrospun fibrous matrix to the wound of the subject to accelerate wound healing.Type: ApplicationFiled: December 28, 2021Publication date: June 29, 2023Applicant: NATIONAL CHENG KUNG UNIVERSITYInventors: Ping-Ching WU, Cheng-Hsin CHUANG, Po-Heng CHEN, Yu-Yi CHIANG
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Publication number: 20230192551Abstract: A method of manufacturing inorganic binder by reduction furnace slag includes a raw material preparation step, a stirring step, a maintaining step and a drying step. The raw material preparation step is to provide a powder mixture containing 30 wt % to 55 wt % of reduction furnace slag, and 45 wt % to 70 wt % of glass powder. The stirring step is to place the powder mixture in a mixing tank, and add an alkali activator to the mixing tank to stir and react to form mixed slurry. The alkali equivalent (AE) of the mixed slurry is 2% to 7%, and the water-binder ratio is 0.25 to 0.4. The maintaining step is to place the mixed slurry in a high-temperature and high pressure maintaining environment for a maintaining time to get a binder. The drying step is to dry the binder.Type: ApplicationFiled: November 25, 2022Publication date: June 22, 2023Applicants: National Cheng Kung University, SanFan Internal investment CO., LTD.Inventors: Jong-Shin HUANG, Wen-Pi KO, Ting-Chun LIN
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Patent number: 11679565Abstract: An additive manufacturing (AM) method includes using an AM tool to fabricate a plurality of workpiece products; measuring qualities of the first workpiece products respectively; performing a temperature measurement on each of the melt pools on the powder bed during a fabrication of each of the workpiece products; performing photography on each of the melt pools on the powder bed during the fabrication of each of the workpiece products; extracting a length and a width of each of the melt pools; performing a melt-pool feature processing operation; building a conjecture model by using a plurality of sets of first process data and the actual metrology values of the first workpiece products in accordance with a prediction algorithm; and predicting a virtual metrology value of the second workpiece product by using the conjecture model based on a set of second process data.Type: GrantFiled: June 6, 2022Date of Patent: June 20, 2023Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Haw-Ching Yang, Yu-Lung Lo, Hung-Chang Hsiao, Shyh-Hau Wang, Min-Chun Hu, Chih-Hung Huang, Fan-Tien Cheng
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Publication number: 20230185072Abstract: An autofocus system includes a focus light source, an objective lens, a defocus lens, a first image sensor, and a controller. The defocus lens is disposed on the transmission path of the focus light beam, so that a minimum light point of the focus light beam passing through the objective lens deviates from a focus of the objective lens. The first image sensor is configured to receive a focus reflected light beam generated after the focus light beam is reflected by the sample. The controller is electrically connected to the first image sensor. According to a center change of gravity, a position change, or an energy change of a light spot formed by the focus reflected light beam on an image plane of the first image sensor, the controller drives the objective lens or the sample to move, so that the focus of the objective lens falls on the sample.Type: ApplicationFiled: December 27, 2021Publication date: June 15, 2023Applicant: National Cheng-Kung UniversityInventors: Chien-Sheng Liu, Ho-Da Tu
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Patent number: 11677303Abstract: A motor and a coreless stator coil winding unit thereof are disclosed. The coreless stator coil winding unit includes an overlapping coil winding assembly and a non-overlapping coil winding assembly. The overlapping coil winding assembly includes a plurality of first coils arranged annularly and a plurality of second coils arranged annularly. The first coils and the second coils overlap with a phase difference. The non-overlapping coil winding assembly includes a plurality of third coils arranged annularly. The third coils are each located between an adjacent one of the first coils and an adjacent one of the second coils. Thus, the back electromotive force constant and torque constant of the motor have a better performance.Type: GrantFiled: October 21, 2021Date of Patent: June 13, 2023Assignee: National Cheng Kung UniversityInventors: Mi-Ching Tsai, Min-Fu Hsieh, Kai-Jung Shih, Po-Wei Huang, Lucio Jose Fernando Caceres Vera, Shang-Hui Shen, Jung-Kun Chiu, Hsin-Yu Chiu
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Patent number: 11673339Abstract: An additive manufacturing (AM) method includes using an AM tool to fabricate a plurality of workpiece products; measuring qualities of the first workpiece products respectively; performing a temperature measurement on each of the melt pools on the powder bed; performing photography on each of the melt pools on the powder bed; extracting a length and a width of each of the melt pools; performing a melt-pool feature processing operation; first converting each of the workspace images to a gray level co-occurrence matrix (GLCM); building a conjecture model by using a plurality of sets of first process data and the actual metrology values of the first workpiece products in accordance with a prediction algorithm; and predicting a virtual metrology value of the second workpiece product by using the conjecture model based on a set of second process data.Type: GrantFiled: June 17, 2022Date of Patent: June 13, 2023Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Haw-Ching Yang, Yu-Lung Lo, Hung-Chang Hsiao, Shyh-Hau Wang, Min-Chun Hu, Chih-Hung Huang, Fan-Tien Cheng
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Patent number: 11677149Abstract: A multi-band antenna includes a grounding portion, a feed-in portion, a feeding point, a first radiation portion, a second radiation portion, a third radiation portion and a fourth radiation portion. The feed-in portion has a first end edge, a second end edge, a first side edge and a second side edge. The feeding point is disposed at the feed-in portion. The first radiation portion is extended from the grounding portion. The second radiation portion is extended from the second end edge. The third radiation portion is extended from the first end edge. The fourth radiation portion is extended from an upper portion of the first end edge and an upper portion of the second end edge.Type: GrantFiled: January 19, 2022Date of Patent: June 13, 2023Assignee: CHENG UEI PRECISION INDUSTRY CO., LTD.Inventors: Ming-Ju Lin, Lan-Yung Hsiao, Chih-Chung Wang, Shao-Kai Sun
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Publication number: 20230170696Abstract: A control device for controlling a power generation system comprises a reception module, for receiving environmental data from the power generation system; an environment generation module, coupled to the reception module, for generating an environment state of the power generation system according to the environment data and an environment model; a strategy generation module, coupled to the environment generation module, for generating a power of the power generation system according to the environmental state, and for generating a control strategy of the power generation system according to the power; a transmission module, coupled to the strategy generation module, for transmitting the control strategy to the power generation system.Type: ApplicationFiled: January 10, 2022Publication date: June 1, 2023Applicant: National Cheng Kung UniversityInventors: Yueh-Heng Li, Yu-Ting Wu, Chao-Wei Huang, Wei-Cheng Lo, Hsun-Chen Hsieh, Po-Hung Lin, Yi-Heng Chen, Ping-Han Huang
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Publication number: 20230168275Abstract: The method for detecting mechanical and magnetic features comprises the steps of: aiming a probe of the sensor at a sample; defining several detected points for detection on the sample; detecting one of points and comprising the steps of: approaching the probe to the detected point from a predetermined height; contacting the probe with the detected point and applying a predetermined force on the detected point; making the probe far away from the detected point until to the predetermined height; shifting the probe to the next point for detection and repeating the detection; collecting the data of each of the detected points while the probe rapidly approaches to the points from the predetermined height; using a signal decomposition algorithm to transform the collected data to a plurality of data groups; and choosing a part of the data groups to be as data of feature distributions of the sample.Type: ApplicationFiled: February 25, 2022Publication date: June 1, 2023Applicant: National Cheng Kung UniversityInventors: Yi-Chun Chen, Yi-De Liou, Yi-Hsin Weng
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Patent number: 11658271Abstract: A deep ultraviolet (DUV) light-emitting diode (LED) module structure contains: a holder configured to accommodate a substrate. The holder including a receiving cup mounted therein and a transparent layer mounted on a top of the receiving cup. The holder includes a DUV LED chip adhered on the substrate, and the holder, the substrate, and the DUV LED chip are connected and packaged. The substrate is electrically connected with a drive circuit, and the drive circuit is configured to turn on/off the DUV LED chip. Thereby, the DUV LED module structure enhances DUV radiation intensity, reduces a loss of optical path, and slows down deterioration because of DUV irradiation.Type: GrantFiled: April 2, 2021Date of Patent: May 23, 2023Assignee: Cheng Mei Optronics Inc.Inventors: Bin-Chun Hsieh, Siang-Jyun Chen, Sin-yu Chen
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Patent number: 11638934Abstract: Disclosed is an optical window cleaning device, including: a cleaning brush; and a wiper arm. The wiper arm includes a first link, a torsion mechanism, a second link and a wiper arm drive system. A second end of the first link is hinged to a first end of the second link. The cleaning brush is hinged to a first end of the first link, a rotation trajectory of the cleaning brush and a rotation trajectory of a hinge joint between the second end of the first link and the first end of the second link are both located in a first plane. A rotation trajectory of the second link and the rotation trajectory of the hinge joint are located in the first plane. The torsion mechanism provides the first link and the second link with a force that rotates the first link relative to the second link.Type: GrantFiled: August 12, 2022Date of Patent: May 2, 2023Assignee: PENG CHENG LABORATORYInventors: Caiming Sun, Aidong Zhang, Jing Lin, Xinke Tang
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Patent number: 11639145Abstract: A vehicle structure material strengthening system and a vehicle containing the same are described. The vehicle structure material strengthening system has at least one collision sensor, a processor, and a power supply. The collision sensor is suitable for being mounted on the vehicle. The processor is electrically connected to the collision sensor for receiving a collision signal from the collision sensor, and determines whether to transmit a power activation signal according to the collision signal. The power supply is electrically connected to the processor and the vehicle. When the collision signal is greater than or equal to a collision threshold, the processor transmits the power activation signal to the power supply, wherein the power supply transmits a circuit to the vehicle according to the power activation signal; or when the collision signal is less than the collision threshold, the processor does not transmit the power activation signal.Type: GrantFiled: January 5, 2021Date of Patent: May 2, 2023Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Shih-Kang Lin, Yu-Chen Liu, Yu-Ching Chen, Kuan-Hsueh Lin
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Patent number: 11635388Abstract: A method for manufacturing modified metal nanoparticles includes steps as follows. Metal nanoparticles are provided, wherein each of the metal nanoparticles is a gold nanoparticle or a silver nanoparticle. An ascorbic acid solution is provided, wherein the ascorbic acid solution includes ascorbic acid molecules and/or ascorbic acid ions. A surface modification step is conducted, wherein the metal nanoparticles and the ascorbic acid solution are mixed, such that surfaces of the metal nanoparticles are modified by the ascorbic acid molecules and/or ascorbic acid ions to obtain the modified metal nanoparticles.Type: GrantFiled: December 17, 2020Date of Patent: April 25, 2023Assignee: National Cheng Kung UniversityInventors: Chia-Yun Chen, Ta-Cheng Wei, Tzu-Yu Ou, Meng-Chen Lo
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Publication number: 20230122332Abstract: A method for manufacturing epitaxial films with multiple stress states, comprising steps of: providing a first single crystal substrate, and forming a sacrificial layer and a first epitaxial film on the first single crystal substrate, wherein the first epitaxial film is made of a first material; removing the sacrificial layer to separate the first epitaxial film from the first single crystal substrate; transferring the first epitaxial film to a second single crystal substrate, wherein the second single crystal substrate is made of a second material, a partial surface of the second single crystal substrate being overlapped by the first epitaxial film; applying epitaxies onto the first epitaxial film and the second single crystal substrate to form a second epitaxial film on the first epitaxial film and the second single crystal substrate.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Applicant: National Cheng Kung UniversityInventors: Jan-Chi Yang, Chia-Chun Wei
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Patent number: 11630114Abstract: The present invention relates to a method for quantitative measurement of catechol estrogen bound protein in blood sample. By detecting adduction levels of binding sites of the catechol estrogen on the protein in blood sample, the catechol estrogen bound protein in the blood sample can be detected quantitatively and a limit of quantitation can be decreased.Type: GrantFiled: May 28, 2021Date of Patent: April 18, 2023Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Shu-Hui Chen, Yu-Shan Huang, Hung-Hsiang Jen, Yu-Min Lin
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Patent number: D986729Type: GrantFiled: June 30, 2020Date of Patent: May 23, 2023Assignee: CHENG YU ENTERPRISES CO., LTD.Inventor: Min-Chien Chen
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Patent number: D990206Type: GrantFiled: March 24, 2023Date of Patent: June 27, 2023Assignee: Zhejiang Cheng's Plastic Products Co., Ltd.Inventor: Bo Cheng
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Patent number: D990920Type: GrantFiled: March 24, 2023Date of Patent: July 4, 2023Assignee: Zhejiang Cheng's Plastic Products Co., Ltd.Inventor: Bo Cheng
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Patent number: D991149Type: GrantFiled: May 14, 2021Date of Patent: July 4, 2023Assignee: Cheng Shin Rubber Ind. Co., Ltd.Inventor: Kuang-Hua Wu