Patents by Inventor Chu-An Chang

Chu-An Chang 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).

  • Publication number: 20200376520
    Abstract: An ultrasonic transducer includes a carrier with a first surface and a second surface which are opposite to each other, a piezoceramic element attached on the first surface of the carrier, a first acoustic matching layer with a third surface and a fourth surface which are opposite to each other, the third surface is attached on the second surface of the carrier, wherein the first acoustic matching layer includes a mesh with openings, and the thickness of first acoustic matching layer is smaller than ΒΌ wavelength of an ultrasonic wave emitted by the piezoceramic element in the first acoustic matching layer in an operating frequency, and a total area of the openings of mesh is larger than 30% area of the third surface of first acoustic matching layer, and a second acoustic matching layer disposed on the fourth surface of the first acoustic matching layer.
    Type: Application
    Filed: January 16, 2020
    Publication date: December 3, 2020
    Inventors: Lung Chen, Yi-Ting Su, San-Tang Chen, Tsung-Shou Yeh, Ming-Chu Chang
  • Patent number: 10787413
    Abstract: A series of novel bis(hydroxymethyl) alkanoate derivatives of curcuminoids were designed, and synthesized, which show anticancer activity, and in particular to breast cancer, colon cancer, and prostate cancer.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: September 29, 2020
    Assignee: CHINA MEDICAL UNIVERSITY
    Inventors: Sheng-Chu Kuo, Kuo-Hsiung Lee, Chang-Hai Tsai, Min-Tsang Hsieh, Ling-Chu Chang, Hsin-Yi Hung, Hui-Yi Lin, Jai-Sing Yang
  • Publication number: 20200292362
    Abstract: A method for correcting an angle sensor is applied to a step motor including an angle sensor, where the angle sensor rotates with the step motor, and the method for correcting an angle sensor includes the following steps: rotating the step motor by a preset angle to a first position; reading a first voltage of the angle sensor when the angle sensor is rotated to the first position; determining whether the first voltage deviates from a preset voltage curve; if yes, recording a first offset of the first voltage relative to the preset voltage curve; and compensating for a sensing angle of the angle sensor according to the first offset. A device for correcting an angle sensor is further provided.
    Type: Application
    Filed: February 18, 2020
    Publication date: September 17, 2020
    Applicant: PEGATRON CORPORATION
    Inventors: Tien-Chu Chang, Nien-Chih Wang
  • Patent number: 10730579
    Abstract: An electric vehicle includes a front frame (1), a rear frame (2), and a sliding seat (3). The front frame has a first gear set (14). A movable rotation shaft (15) connects the front frame and the rear frame. The rear frame has a track (21). A sliding support (22) is mounted on the track and connects a linear driver (23) which connects a connecting member (25) which connects a connecting shaft (26) which connects the front frame. A wheel support (27) connects the rear frame and an auxiliary wheel (28) and has a second gear set (29) meshing with the first gear set. A linkage (4) connects the rear frame and support rack (31). A link unit (41) connects the linkage and the sliding support. The sliding seat is mounted on a seat support (33) which is mounted on the support rack.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: August 4, 2020
    Assignee: Chienti Enterprise Co., Ltd.
    Inventor: Feng-Chu Chang
  • Patent number: 10679007
    Abstract: A method for pattern discovery and real-time anomaly detection based on knowledge graph, comprising: based on a dataset including messages collected within a certain period, constructing a local knowledge graph (KG); applying a statistical relational learning (SRL) model to predict hidden relations between entities to obtain an updated local KG; from all SPO triples of the updated local KG, discovering a normalcy pattern that includes frequent entities, frequent relations, and frequent SPO triples; and in response to receiving streaming data from a message bus, extracting a plurality of entities, a plurality of relations, and a plurality of SPO triples, from the streaming data for comparison with the normalcy pattern using semantic distance, thereby determining whether there is an abnormal entity, relation, or SPO triple in the streaming data.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: June 9, 2020
    Assignee: INTELLIGENT FUSION TECHNOLOGY, INC.
    Inventors: Bin Jia, Cailing Dong, Zhijiang Chen, Kuo-Chu Chang, Nichole Sullivan, Genshe Chen
  • Publication number: 20200165132
    Abstract: Metal (II) phosphate powders, lithium metal phosphate powders for a Li-ion battery and methods for manufacturing the same are provided. The lithium metal phosphate powders are represented by the following formula (II): LiFe1-aMaPO4??(II) wherein M comprises at least one metal selected from the group consisting of Mn, Co, Ni, Cu, Cr, V, Mo, Ti, Zn, Zr, Tc, Ru, Rh, Pd, Ag, Cd, Pt, Au, Al, Ga, In, Be, Mg, Ca, Sr, B and Nb, 0.5<a?1, the lithium metal phosphate powders are composed of plural flake powders, and a length of each of the flake powders is ranged from 50 nm to 10 ?m.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: Lih-Hsin CHOU, Shao-Wei PENG, Kai-Chu CHANG
  • Publication number: 20200156727
    Abstract: An electric vehicle includes a front frame (1), a rear frame (2), and a sliding seat (3). The front frame has a first gear set (14). A movable rotation shaft (15) connects the front frame and the rear frame. The rear frame has a track (21). A sliding support (22) is mounted on the track and connects a linear driver (23) which connects a connecting member (25) which connects a connecting shaft (26) which connects the front frame. A wheel support (27) connects the rear frame and an auxiliary wheel (28) and has a second gear set (29) meshing with the first gear set. A linkage (4) connects the rear frame and support rack (31). A link unit (41) connects the linkage and the sliding support. The sliding seat is mounted on a seat support (33) which is mounted on the support rack.
    Type: Application
    Filed: May 14, 2019
    Publication date: May 21, 2020
    Inventor: Feng-Chu Chang
  • Patent number: 10593947
    Abstract: Metal (II) phosphate powders, lithium metal phosphate powders for a Li-ion battery and methods for manufacturing the same are provided. The metal (II) phosphate powders are represented by the following formula (I): (Fe1-xMx)3(PO4)2.yH2O??(I) wherein M comprises at least one metal selected from the group consisting of Mn, Co, Ni, Cu, Cr, V, Mo, Ti, Zn, Zr, Tc, Ru, Rh, Pd, Ag, Cd, Pt, Au, Al, Ga, In, Be, Mg, Ca, Sr, B and Nb, 0.5<x?1, y is an integer of 0 to 8, the metal phosphate (II) powders are composed of plural flake powders, and the length of each of the flake powders is ranged from 50 nm to 10 ?m.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: March 17, 2020
    Assignee: National Tsing Hua University
    Inventors: Lih-Hsin Chou, Shao-Wei Peng, Kai-Chu Chang
  • Publication number: 20200073932
    Abstract: A method for pattern discovery and real-time anomaly detection based on knowledge graph, comprising: based on a dataset including messages collected within a certain period, constructing a local knowledge graph (KG); applying a statistical relational learning (SRL) model to predict hidden relations between entities to obtain an updated local KG; from all SPO triples of the updated local KG, discovering a normalcy pattern that includes frequent entities, frequent relations, and frequent SPO triples; and in response to receiving streaming data from a message bus, extracting a plurality of entities, a plurality of relations, and a plurality of SPO triples, from the streaming data for comparison with the normalcy pattern using semantic distance, thereby determining whether there is an abnormal entity, relation, or SPO triple in the streaming data.
    Type: Application
    Filed: August 30, 2018
    Publication date: March 5, 2020
    Inventors: BIN JIA, CAILING DONG, ZHIJIANG CHEN, KUO-CHU CHANG, CHRISTOPHER BANAS, ADNAN BUBALO, NICHOLE SULLIVAN, GENSHE CHEN
  • Patent number: 10336844
    Abstract: Provided is a method of preparing a powdery diacetal clarifying agent, which comprises mixing an aromatic aldehyde, a polyol, and an acid catalyst in an organic polar solvent, adding a hydrogenating agent and an inorganic silicon-containing agent into the foregoing mixture, and filtering the mixture. The powdery diacetal clarifying agent prepared by the method can have excellent flowability, dispersability, thermal resistance, and color stability. Accordingly, the powdery diacetal clarifying agent does not release stinking odor and incur yellowing at high temperature, allowing the plastic articles to have improved appearance and visual appeal.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: July 2, 2019
    Assignee: SUNKO INK CO., LTD.
    Inventors: Chiu-Peng Tsou, Ting-Ti Huang, Chen-Ku Hsieh, Tien-Chu Chang, Ming-Chang Hsieh
  • Publication number: 20190161430
    Abstract: A series of novel bis(hydroxymethyl) alkanoate derivatives of curcuminoids were designed, and synthesized, which show anticancer activity, and in particular to breast cancer, colon cancer, and prostate cancer.
    Type: Application
    Filed: June 2, 2017
    Publication date: May 30, 2019
    Inventors: SHENG-CHU KUO, KUO-HSIUNG LEE, CHANG-HAI TSAI, MIN-TSANG HSIEH, LING-CHU CHANG, HSIN-YI HUNG, HUI-YI LIN, JAI-SING YANG
  • Patent number: 10241540
    Abstract: A portable electronic device includes a host module having a housing with an accommodation space, a display module and a lift structure. The display module is pivotally connected to the housing by a shaft. The lift structure includes a bottom cover covering the accommodation space, a swing member and a follower member. The bottom cover includes an abutment portion including an abutment surface and located on an end surface of the bottom cover adjacent to the accommodation space. The swing member is in the accommodation space and connected to the shaft. The swing member moves with the display module. The follower member connects to the swing member and contacts the abutment surface. The follower member moves in a first direction according to swinging of the swing member, therefore the follower member abuts against the abutment surface and the bottom cover moves in a second direction to lift up the housing.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 26, 2019
    Assignee: Compal Electronics, Inc.
    Inventors: Wei-Pin Chuang, Wei-Che Yang, Han-Min Chuang, Hsu-Lung Chin, Ya-Chu Chang
  • Patent number: 10235874
    Abstract: A remote control method, and a remote control system and a gateway for implementing the method are provided. The method includes receiving, by a remote control device, a plurality of ultra-wideband signals transmitted by a main control device to calculate position data; calculating, by the remote control device, rotation vector data according to detection data of the remote control device; transmitting, by the remote control device, the rotation vector data and the position data to the main control device to allow the main control device to identify an electronic device the remote control device aims at and transmit control information corresponding to the electronic device to the remote control device according to the rotation vector data and the position data; and displaying, by the remote control device, a control interface for controlling the electronic device according to the received control information.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: March 19, 2019
    Assignee: PEGATRON CORPORATION
    Inventors: Nien-Chih Wang, Wei-Hua Hao, Tien-Chu Chang
  • Patent number: 10137722
    Abstract: A creased sticky note with a sticky body, an adhesive layer and at least one crease is provided. The sticky body has an adhesion portion and a flexible portion disposed adjacent to the adhesion portion. The adhesive layer is disposed on the adhesion portion. The at least one crease is disposed on the adhesion portion, or is disposed between the adhesion portion and the flexible portion, or is disposed on a stress hinders area of the flexible portion which is near the adhesion portion.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 27, 2018
    Assignee: Miccudo Multimedia Co., Ltd.
    Inventors: Chiao-Chu Chang, Wei-Yang Chang
  • Publication number: 20180322774
    Abstract: A remote control method, and a remote control system and a gateway for implementing the method are provided. The method includes receiving, by a remote control device, a plurality of ultra-wideband signals transmitted by a main control device to calculate position data; calculating, by the remote control device, rotation vector data according to detection data of the remote control device; transmitting, by the remote control device, the rotation vector data and the position data to the main control device to allow the main control device to identify an electronic device the remote control device aims at and transmit control information corresponding to the electronic device to the remote control device according to the rotation vector data and the position data; and displaying, by the remote control device, a control interface for controlling the electronic device according to the received control information.
    Type: Application
    Filed: May 8, 2018
    Publication date: November 8, 2018
    Applicant: PEGATRON CORPORATION
    Inventors: Nien-Chih Wang, Wei-Hua Hao, Tien-Chu Chang
  • Publication number: 20180309129
    Abstract: Metal (II) phosphate powders, lithium metal phosphate powders for a Li-ion battery and methods for manufacturing the same are provided. The metal (II) phosphate powders are represented by the following formula (I): (Fe1-xMx)3(PO4)2.yH2O??(I) wherein M comprises at least one metal selected from the group consisting of Mn, Co, Ni, Cu, Cr, V, Mo, Ti, Zn, Zr, Tc, Ru, Rh, Pd, Ag, Cd, Pt, Au, Al, Ga, In, Be, Mg, Ca, Sr, B and Nb, 0.5<x?1, y is an integer of 0 to 8, the metal phosphate (II) powders are composed of plural flake powders, and the length of each of the flake powders is ranged from 50 nm to 10 ?m.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Inventors: Lih-Hsin CHOU, Shao-Wei PENG, Kai-Chu CHANG
  • Patent number: 10081690
    Abstract: Provided are a powdery diacetal clarifying agent and a method of preparing the same. The powdery diacetal clarifying agent comprises a diacetal compound and an inorganic silicon-containing compound having a pH value equal to or more than 6 and equal to or less than 12. The powdery diacetal clarifying agent of the composition can have excellent flowability, dispersability, thermal resistance, and color stability. Accordingly, the powdery diacetal clarifying agent does not release stinking odor and incur yellowing at high temperature, allowing the plastic articles to have improved appearance and visual appeal.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: September 25, 2018
    Inventors: Ting-Ti Huang, Chiu-Peng Tsou, Tien-Chu Chang, Ming-Chang Hsieh, Chen-Ku Hsieh
  • Publication number: 20180267570
    Abstract: A portable electronic device includes a host module having a housing with an accommodation space, a display module and a lift structure. The display module is pivotally connected to the housing by a shaft. The lift structure includes a bottom cover covering the accommodation space, a swing member and a follower member. The bottom cover includes an abutment portion including an abutment surface and located on an end surface of the bottom cover adjacent to the accommodation space. The swing member is in the accommodation space and connected to the shaft. The swing member moves with the display module. The follower member connects to the swing member and contacts the abutment surface. The follower member moves in a first direction according to swinging of the swing member, therefore the follower member abuts against the abutment surface and the bottom cover moves in a second direction to lift up the housing.
    Type: Application
    Filed: May 11, 2017
    Publication date: September 20, 2018
    Inventors: Wei-Pin Chuang, Wei-Tse Yang, Han-Min Chuang, Hsu-Lung Chin, Ya-Chu Chang
  • Publication number: 20180165665
    Abstract: A portable electronic device is assembled with a replaceable external module. The portable electronic device includes at least two expansion slots. Each of the expansion slots includes an accommodation space and a first electric connection means. The accommodation space is defined by plural sidewalls. The first electric connection means is installed on one of the plural sidewalls of the accommodation space. The external module is received in the accommodation space of at least one of the at least two expansion slots and located adjacent to the plural sidewalls of the accommodation space. The first electric connection means of the at least one of the at least two expansion slots is electrically connected with at least one second electric connection means of the external module. The external module is replaceably assembled with the portable electronic device through the expansion slots.
    Type: Application
    Filed: January 13, 2017
    Publication date: June 14, 2018
    Inventor: TSUNG-CHU CHANG
  • Publication number: 20180143207
    Abstract: A urine biomarker is provided, and more particularly, a screening method using the urine biomarker to screen a subject having a high risk of developing diabetic nephropathy is also provided. The urine biomarker of glycosylated uromodulin can be used to detect and predict diabetic patients having a high risk of developing diabetic nephropathy more accurate and earlier than general detection methods of PCR or ACR tests, thereby the patient being screened can be treated earlier and thus prevent deterioration of the progression of chronic kidney disease, and therefore dramatically decrease the risk of death.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 24, 2018
    Inventors: CHUNG HO CHANG, CHIA CHU CHANG