Patents by Inventor Yong Chang

Yong 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: 20190217417
    Abstract: The invention relates to a temperature control system for additive manufacturing and method for same. The temperature control system comprises: a cladding device configured to fuse a material and form a cladding layer, the cladding device comprising a first energy source; a micro-forging device coupled to the cladding device for forging the cladding layer; a detecting device; a control module; and an adjusting module coupled to at least one of the first energy source and the micro-forging device.
    Type: Application
    Filed: January 9, 2019
    Publication date: July 18, 2019
    Inventors: Yong Wu, Yingna Wu, Zirong Zhai, Hai Chang, Yifeng Wang, Yimin ZHAN, Dalong Zhong
  • Publication number: 20190216616
    Abstract: The present invention relates to a method for manufacturing a bone graft material using 3D printing of a DLP system. The method includes (1) dispersing a powder material including calcium phosphate-based ceramics in a solvent; (2) recovering the calcium phosphate-based ceramics by removing the solvent from a solution in which the calcium phosphate-based ceramic material is dispersed in Step 1; (3) producing a photocurable resin composition by adding a binder resin including a crosslinking agent and a photoinitiator to the calcium phosphate-based ceramics obtained in Step 2; (4) performing 3D rapid prototyping on a bone graft material molded body from the composition for a bone graft material produced in Step 3 by 3D printing of a DLP system; and (5) debinding and sintering organic materials remaining in the bone graft material molded body subjected to prototyping in Step 4.
    Type: Application
    Filed: December 11, 2018
    Publication date: July 18, 2019
    Inventors: So Young YANG, Yong Il CHUNG, Kyu Hyung KIM, Min Ji LEE, Soo In LEE, Eun Chang CHOI
  • Patent number: 10349919
    Abstract: Provided is an ultrasound diagnosis apparatus including a data acquirer configured to obtain ultrasound data about an object having blood vessels; an image processor configured to extract a blood vessel area from an ultrasound image generated based on the ultrasound data, extract a plaque area included in the blood vessel area, and analyze a risk of plaque based on at least one of a surface shape of the plaque area and brightness information of the plaque area; and a display configured to display the risk of plaque.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: July 16, 2019
    Assignee: SAMSUNG MEDISON CO., LTD.
    Inventors: Jin-ki Park, Jin-yong Lee, Hyuk-jae Chang, Namsik Chung, Geu-ru Hong, Chi-young Shim, Ji-hyun Yoon, In-jeong Cho, Ran Heo
  • Patent number: 10353561
    Abstract: A method of generating interaction activity information, performed by a device, is provided. The method includes establishing communication with at least one external apparatus; receiving first information about a user selectable function of the external apparatus; and generating second information, based on the first information, about a user selectable function of the device, wherein the user selectable function of the device corresponds to the user selectable function of the external device and can be performed in collaboration with the external device.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: July 16, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Seung dong Yu, Woo-yong Chang, Se-jun Park, Min-jeong Moon
  • Patent number: 10345637
    Abstract: A display device includes a flat transparent plate, a display panel, at least one film, and a transparent adhesive layer. The display panel is separated below the transparent plate. The at least one film is disposed between the transparent plate and the display panel, and is attached to a lower peripheral region of the transparent plate. The transparent adhesive layer is disposed between the transparent plate and the display panel, and laminates the transparent plate and the display panel. Other various embodiments are possible.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: July 9, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Su Chang, Sung-Woon Yoon, Kyo-Ree Lee, Duck-Yong Lee, Young-Tae Jin
  • Publication number: 20190200866
    Abstract: A biological component measuring apparatus may include: a first light source configured to emit a first light of a first wavelength range onto an object; a second light source configured to emit a second light of a second wavelength range onto the object, the second wavelength range being different from the first wavelength range; a detector configured to detect the first light and the second light which are scattered from the object; and a processor configured to determine a scattering coefficient based on the detected first light, obtain blood vessel depth information based on the detected second light, and measure a biological component by correcting the scattering coefficient based on the blood vessel depth information.
    Type: Application
    Filed: October 29, 2018
    Publication date: July 4, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kun Sun EOM, Joon Hyung LEE, Jeong Eun HWANG, Jung Yong NAM, Ki Young CHANG
  • Publication number: 20190201981
    Abstract: A forging head for additive manufacturing, comprising a base portion and a forging portion. The forging portion extends from the base portion for forging a cladding layer during formation of the cladding layer by additive manufacturing. The forging head further comprising a through hole which is formed through the base portion and the forging portion, for at least one of an energy bean and an additive material to pass through during formation of the cladding layer.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Inventors: Hai Chang, Dalong Zhong, Yingna Wu, Yong Wu, Zirong Zhai, Yifeng Wang
  • Patent number: 10339895
    Abstract: A brightness compensation circuitry includes a data-setting switch unit receiving a data-setting signal, a pixel unit including a pixel driving circuit that receives the data-setting signal during a data-input period to generate a driving current, and a compensation circuit receiving the driving current generated by the pixel driving circuit. The compensation circuit controls the data-setting switch unit to conduct or not conduct by determining whether or not a magnitude of the driving current conforms with a criterion that is associated with target brightness of the pixel unit.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: July 2, 2019
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Ya-Hsiang Tai, Xuan-Yong Lin, Chun-Yi Chang
  • Publication number: 20190191793
    Abstract: A wrist protector includes a contact pad to be worn on a wrist of a user, a plurality of air tubes disposed on the contact pad, a pump configured to inject air from an outside into the plurality of air tubes, and a discharge valve configured to discharge the air stored in the plurality of air tubes to the outside.
    Type: Application
    Filed: August 27, 2018
    Publication date: June 27, 2019
    Inventors: Ki Yong Chang, Min Young Kang
  • Publication number: 20190195249
    Abstract: Method for diagnosing a pneumatic control valve by using a positioner model includes: establishing relational expression for outputting valve stem displacement according to control pressure, the relational expression including parameters for the characteristics of a positioner, an actuator, and a valve, determining initial parameter value by adjusting the values of the parameters until the difference between a measured value for a normal operation of the pneumatic control valve and output value obtained by the relational expression is smaller than predetermined error limit, determining diagnostic parameter value by adjusting the values of the parameters until the difference between a measured value for a diagnostic operation of the pneumatic control valve and an output value obtained by the relational expression is smaller than a predetermined error limit, and comparing the initial parameter value and the diagnostic parameter value so as to determine whether the pneumatic control valve has abnormality.
    Type: Application
    Filed: August 30, 2017
    Publication date: June 27, 2019
    Inventors: Yang Seok KIM, Dae Woong KIM, Bum Nyun KIM, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Ji In KIM, Nam Woo CHOI, Yong Hoon PARK, Hee Seung CHANG, You Soo SHIN
  • Publication number: 20190188345
    Abstract: The present invention provides a method for diagnosing a rotation device by means of a rotor-bearing-foundation model, the method characterized by utilizing the characteristics of a simulation rotor system. To this end, the present invention comprises the steps of: simulating a rotation device as a rotor system; forming a mathematical model for the rotor system; estimating the state of the rotation device by means of the mathematical model and a vibration measurement value of the rotation device; and diagnosing for abnormalities in the rotation device from the changes in an estimated value. Therefore, since a rotation device is diagnosed for abnormalities by means of forming a mathematical model for a rotor system, the present invention enables more accurate diagnosis of the rotation device.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 20, 2019
    Inventors: Yang Seok Kim, Dae Woong KIM, Bum Nyun KIM, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Ji In KIM, Nam Woo CHOI, Ji Soo RYU, Hee Seung CHANG, You Soo SHIN
  • Publication number: 20190180610
    Abstract: A vehicle type identification method and device based on mobile phone data for solving the problem of providing a convenient and low-cost vehicle type identification method. The method includes: obtaining trajectory data recorded by a mobile phone of a user within a period of time; judging mobile phone users who are on the same vehicle according to the data, and obtaining a vehicle trajectory and the number of passengers corresponding to the vehicle trajectory; obtaining a vehicle origin and destination according to the vehicle trajectory, and obtaining an origin-destination type of the vehicle trajectory in combination with geographic data; obtaining vehicle driving data according to the vehicle trajectory; and obtaining service area data of vehicle staying according to the vehicle trajectory. The cost of obtaining data by using mobile phone big data and by using mobile phone signaling data collected and provided by an operator is low.
    Type: Application
    Filed: March 28, 2018
    Publication date: June 13, 2019
    Applicants: SHANDONG PROVINCIAL COMMUNICATIONS PLANNING AND DESIGN INSTITUTE, TSINGHUA UNIVERSITY
    Inventors: Wei LIU, Weiling WU, Kai ZHAO, Yong LI, Depeng JIN, Tao MU, Yiwu LI, Yufeng BI, Jianhui ZHENG, Ying CHANG, Xiaobin XU, Xiaoming SHAO
  • Patent number: 10320962
    Abstract: Disclosed are dual screen smartphone devices with a high resolution full screen display. In some aspects, a dual display smartphone device includes a first display screen on a first face of the smartphone device operable to provide a high resolution, fully viewable visual display that occupies substantially 100% of the surface area of the first face; a second display screen on a second face of the smartphone device operable to provide a high resolution visual display while providing space for placing one or more cameras and sensors on the second face.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: June 11, 2019
    Assignee: ZTE Corporation
    Inventor: Yong Chang
  • Publication number: 20190167199
    Abstract: An apparatus for non-invasively measuring bio-information is provided. The apparatus includes a plurality of light sources configured to emit light to a first region and a second region of an object, a detector configured to detect a first scattered light signal from the first region and a second scattered light signal from the second region and output a first electrical signal corresponding to the first scattered light signal and a second electrical signal corresponding to the second scattered light signal, and a processor configured to correct the first electrical signal based on the second electrical signal and measure bio-information based on a correction result.
    Type: Application
    Filed: July 13, 2018
    Publication date: June 6, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: JUNG YONG NAM, JOON HYUNG LEE, KI YOUNG CHANG, JEONG EUN HWANG
  • Publication number: 20190168644
    Abstract: A relaxing seat for a vehicle may include a fixed rail fixed to a vehicle body; a first moving rail coupled to the fixed rail; a second moving rail coupled to the first moving rail; a back link rotatably coupled to the fixed rail and a seat back frame; a cushion rear-side link including first and second end portions, wherein the first end portion is rotatably coupled to a portion at which a lower end portion of the seat back frame and a rear end portion of a seat cushion frame are rotatably coupled to each other, and the second end portion is rotatably coupled to the first moving rail; and a cushion front-side frame including a first end portion and a second end portion, wherein the first end portion is rotatably coupled to a front end portion of the seat cushion frame, and the second end portion of which is fixedly coupled to the second moving rail.
    Type: Application
    Filed: April 4, 2018
    Publication date: June 6, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corporation, DAE WON SAN UP CO., LTD
    Inventors: Eun Sue Kim, Seung Hyeok Chang, Dae lg Jung, Sun Ho Hur, Young Cheol Jang, Sang Yong Koo, Byoung Su You, Tae Hyung Kim, Jong Ho Lim, Dong Hwi Kim
  • Patent number: 10311907
    Abstract: Provided herein is an apparatus, including a magnetically soft underlayer (SUL); an interlayer stack overlying the SUL, wherein the interlayer stack comprises a seed layer of an fcc material; and a perpendicular magnetic recording layer overlying the interlayer stack, wherein a thickness of the SUL in combination with a distance of the SUL from the perpendicular recording layer is sufficient to orient a total magnetic field corresponding to a magnetic transducer head at an angle of about 45°.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: June 4, 2019
    Assignee: Seagate Technology LLC
    Inventors: Thomas P. Nolan, Li Tang, Yong-Chang Feng, Zhong (Stella) Wu, Samuel D. Harkness, Hans J. Richter, Youfeng Zheng
  • Publication number: 20190161051
    Abstract: A curtain airbag of a vehicle is provided adjacent to the roof of the vehicle in a folded state, is configured to have a shape that unfolds downward between an inner side surface of the vehicle and an occupant when the vehicle crashes, and includes an outer panel that proceeds toward the side surface of the vehicle and an inner panel that proceeds toward the occupant upon expansion. The curtain airbag further includes a head support part configured to have a shape in which an expansion thickness, which is defined by the outer panel and the inner panel in a portion that the head of the occupant contacts due to the car crash, gradually increases toward the front of the vehicle, so as to prevent the head of the occupant from rotating while moving toward the front of the vehicle. The curtain airbag may effectively stop the head of the occupant from rotating while moving toward the front of the vehicle during a vehicle crash.
    Type: Application
    Filed: July 26, 2017
    Publication date: May 30, 2019
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Tae Ik GWON, Kyu Soung JANG, Wan Dong YOO, Yong Hyun JUNG, Hugh FINN, Gary WOOTTON, Dae Chang JUNG
  • Patent number: 10294784
    Abstract: A method includes operating a downhole acquisition tool including a guard probe and a sample probe in a wellbore that contains a fluid that includes a native reservoir fluid and a contaminant. The method also includes receiving a first portion of fluid into the guard probe and a second portion of fluid into the sample probe, estimating a contamination level of the first or second portions based on a fluid property of the respective first and second portions, determining an initial guard flow rate of the first portion, determining an initial sample flow rate of the second portion, using a processor to adjust a guard flow rate of the second portion over pump time after the contamination level of the first portion is at or below a contamination level threshold, and adjust a sample flow rate of the first portion based on the adjusted guard flow rate and total flowrate.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: May 21, 2019
    Assignee: Schlumberger Technology Corporation
    Inventors: Adriaan Gisolf, Kai Hsu, Yong Chang, Youxiang Zuo, Ryan Sangjun Lee, Ashers Partouche
  • Publication number: 20190147925
    Abstract: A memory circuit and a memory device including the same are provided. The memory circuit may be connected to a bit line and a complementary bit line and configured to perform precharging on the bit line and the complementary bit line. The memory circuit may include: an equalizer configured to equalize voltage levels of the bit line and the complementary bit line by connecting the bit line with the complementary bit line in response to an equalizing signal; and a precharger configured to precharge the bit line and the complementary bit line to a precharge voltage in response to a precharge signal. The equalizing signal and the precharge signal may be received via separate lines.
    Type: Application
    Filed: June 19, 2018
    Publication date: May 16, 2019
    Inventors: JIN-YONG CHOI, SANG-YUN KIM, SOO-BONG CHANG
  • Publication number: 20190145254
    Abstract: An inlet for a single packer, having at least one sample inlet and at least one guard inlet surrounding the periphery of the at least one sample inlet, wherein the at least one sample inlet has at least one side that is parallel to another side of the at least one sample inlet and the at least one sample inlet has at least two rounded ends connecting each of the parallel sides, and the at least one guard inlet has at least one side that is parallel to another side of the at least one guard inlet and the at least one guard inlet has at least two rounded ends connecting each of the parallel side of the guard inlet.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Inventors: Ryan Sangjun Lee, Yong Chang, Ashers Partouche, Sylvain Bedouet