Patents by Inventor Wan Yun

Wan Yun 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).

  • Patent number: 12055226
    Abstract: Proposed are directional control hydraulic valves and a system including the same, the system including: a first valve controlling a flow of a fluid flowing thereinto from a first input port by being interlocked with a solenoid valve that is switched to an excited (on) state or non-excited (off) state; and a second valve connected to the first valve and controlling a flow of the fluid flowing thereinto from the first valve by a fluid flowing thereinto from a second input port or a third input port, wherein at least a part of the fluid having been passed through the first valve is discharged through a first output port and then flows into the second input port or the third input port. In addition, the system including at least two directional control valves may be provide, whereby multiplexing of the system may be implemented.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: August 6, 2024
    Assignee: HANVIT INDUSTRIES CO., LTD.
    Inventors: Ha Kee Rhu, Jin Mo Kim, Kang Wan Yun, Byung-Kwan Choi
  • Publication number: 20230003307
    Abstract: Proposed are directional control hydraulic valves and a system including the same, the system including: a first valve controlling a flow of a fluid flowing thereinto from a first input port by being interlocked with a solenoid valve that is switched to an excited (on) state or non-excited (off) state; and a second valve connected to the first valve and controlling a flow of the fluid flowing thereinto from the first valve by a fluid flowing thereinto from a second input port or a third input port, wherein at least a part of the fluid having been passed through the first valve is discharged through a first output port and then flows into the second input port or the third input port. In addition, the system including at least two directional control valves may be provide, whereby multiplexing of the system may be implemented.
    Type: Application
    Filed: September 13, 2022
    Publication date: January 5, 2023
    Applicant: HANVIT INDUSTRIES CO., LTD.
    Inventors: Ha Kee RHU, Jin Mo KIM, Kang Wan YUN, Byung-Kwan CHOI
  • Publication number: 20220355084
    Abstract: A guidewire management device, a method of manufacturing the guidewire management device and a method for guidewire management are disclosed. The guidewire management device includes a housing through which a lumen of a catheter passes; and a locking mechanism mounted within the housing; wherein the locking mechanism is configured to lock the housing if a guidewire is present in the lumen and to unlock the housing if the guidewire is absent from the lumen. In one embodiment, the locking mechanism comprises a lever structure comprising a first arm connected to a second arm, wherein the first arm is configured to abut the lumen such that it becomes displaceable from a first position to a second position and actuates the second arm to engage a latch member to lock the housing if the guidewire is inserted through the lumen. Conversely, the housing unlocks if the guidewire is removed from the lumen.
    Type: Application
    Filed: June 22, 2020
    Publication date: November 10, 2022
    Inventors: Rajkumar Chandran, Jerry Kian Teck Lim, Seok Hwee Koo, Subburaj Karupppasamy, Jie Hong Lim, Yu Jun Vanessa Poh, Pei Jie Janelle Ong, Wan Yun LU
  • Publication number: 20220241855
    Abstract: An atomization powder making device suitable for atomizing molten metal to produce powder includes a housing defining an atomizing chamber, a vessel mounted inside the housing and defining a receiving space for receiving the molten metal, and a flow guide unit extending from the bottom of the vessel and having at least one liquid flow channel for conveying the molten metal from the receiving space to the atomizing chamber. A push unit is disposed in the receiving space for pushing the molten metal to flow through the at least one liquid flow channel. A gas supply unit is configured to supply an atomizing gas for atomizing the molten metal flowing out of the liquid flow channel.
    Type: Application
    Filed: December 1, 2021
    Publication date: August 4, 2022
    Inventors: Chuan-Jeng HSU, Chung-Jui HUANG, Wan-Yun HUANG, Chien-Li LAI
  • Patent number: 11362007
    Abstract: A fin height monitoring structure including a substrate, isolation structures, a first word line, and a second word line is provided. The substrate includes a first region and a second region. The isolation structures are located in the substrate of the first region to define at least one active area. The substrate in the active area has a fin that is higher than the isolation structures. The first word line is located on the isolation structures of the first region and on the fin of the first region. The second word line is located on the substrate of the second region.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: June 14, 2022
    Assignee: Winbond Electronics Corp.
    Inventors: Wan-Yun Chi, Yi-Chun Chin
  • Patent number: 11213884
    Abstract: A vacuum valve includes first and second blocks. The first block includes a base portion and a frustoconical guiding portion connected to the base portion and tapering away from the base portion to form a shoulder, and defines a discharging channel extending in the base portion and through the guiding portion, in spatial communication with ambient surroundings, and adapted to permit air to flow therethrough and into the ambient surroundings. The second block has an end surface cooperating with the shoulder to define an opening communicated spatially with the ambient surroundings, and an inner surface connected to the end surface and cooperating with the frustoconical guiding portion to define a spiral fluid channel therebetween. The spiral fluid channel is in spatial communication with the discharging channel and the opening, and is for introducing air into the discharging channel via the opening.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: January 4, 2022
    Assignee: METAL INDUSTRIES RESEARCH AND DEVELOPMENT CENTRE
    Inventors: Nai-Kuang Tang, Chih-Wei Lu, Wan-Yun Huang, Chien-Li Lai
  • Publication number: 20210225714
    Abstract: A fin height monitoring structure including a substrate, isolation structures, a first word line, and a second word line is provided. The substrate includes a first region and a second region. The isolation structures are located in the substrate of the first region to define at least one active area. The substrate in the active area has a fin that is higher than the isolation structures. The first word line is located on the isolation structures of the first region and on the fin of the first region. The second word line is located on the substrate of the second region.
    Type: Application
    Filed: January 21, 2020
    Publication date: July 22, 2021
    Applicant: Winbond Electronics Corp.
    Inventors: Wan-Yun Chi, Yi-Chun Chin
  • Publication number: 20200376442
    Abstract: Described herein are protective coatings for reverse osmosis membranes comprising coating mixtures of graphene oxide crosslinked with copolymers. The crosslinked GO copolymer mixture coatings provide protection from chlorine-based defoulers of saline water and unprocessed fluids. The coated membranes described herein create a reverse osmosis structure that has excellent water flux and salt rejection. The crosslinking copolymers can comprise an optionally substituted vinyl imidazole constituent unit and an optionally substituted acrylic amide constituent unit.
    Type: Application
    Filed: December 20, 2018
    Publication date: December 3, 2020
    Inventors: Shijun Zheng, Weiping Lin, John Ericson, Isamu Kitahara, Ozair Siddiqui, Wan-Yun Hsieh, Peng Wang, Yuji Yamashiro, Craig Roger Bartels, Makoto Kobuke
  • Publication number: 20200199058
    Abstract: Optionally substituted squarylium compounds, such as those depicted in Formula 1, may be useful in filters for display devices.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 25, 2020
    Inventors: Michael Welch, Shijun Zheng, Peng Wang, Ozair Siddiqui, Wan-Yun Hsieh, Jie Cai
  • Patent number: 10672341
    Abstract: An organic light emitting diode (OLED) display device for monitoring a driving voltage supplied to an OLED display panel from a set unit and generating a compensation voltage and transmitting the compensation voltage to a display panel when voltage drop occurs is discussed. The OLED display device includes a power supply unit of a set unit configured to supply a voltage for driving an OLED of a panel unit, a cable configured to transmit the voltage supplied from the power supply unit of the set unit to the panel unit, and a control circuit unit comprising a voltage adjustment module configured to compare the voltage transmitted through the cable with a target voltage and to generate a voltage with an amplitude corresponding to a difference.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: June 2, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Wan-Yun Lee
  • Publication number: 20200120388
    Abstract: In an apparatus for preventing children from close-up screen viewing, a viewing distance determining unit determining whether or not a viewing distance of a user is equal to or smaller than a reference distance; and a viewing blocking unit performing at least one of blocking output to a screen and switching the screen to silent when the viewing distance is equal to or smaller than the reference distance are provided.
    Type: Application
    Filed: November 15, 2018
    Publication date: April 16, 2020
    Inventor: Yeong Wan YUN
  • Publication number: 20190284471
    Abstract: Described herein are wavelength conversion films which utilize photostable organic chromophores. In some embodiments, wavelength conversion films and chromophores exhibit improved photostability. In some embodiments, a wavelength conversion film comprising luminescent compounds is useful for improving the solar harvesting efficiency of solar cells, solar panels, or photovoltaic devices. In some embodiments, a wavelength conversion film comprising multiple luminescent compounds is useful for greenhouse roofs. Some embodiments provide an improved solar light wavelength profile for improved plant nutrition and/or growth.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 19, 2019
    Inventors: Tao Gu, Hongxi Zhang, Weiping Lin, Wan-Yun Hsieh, Michiharu Yamamoto
  • Publication number: 20190066594
    Abstract: An organic light emitting diode (OLED) display device for monitoring a driving voltage supplied to an OLED display panel from a set unit and generating a compensation voltage and transmitting the compensation voltage to a display panel when voltage drop occurs is discussed. The OLED display device includes a power supply unit of a set unit configured to supply a voltage for driving an OLED of a panel unit, a cable configured to transmit the voltage supplied from the power supply unit of the set unit to the panel unit, and a control circuit unit comprising a voltage adjustment module configured to compare the voltage transmitted through the cable with a target voltage and to generate a voltage with an amplitude corresponding to a difference.
    Type: Application
    Filed: August 9, 2018
    Publication date: February 28, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Wan-Yun LEE
  • Patent number: 9898189
    Abstract: A user trial feedback method, an electronic device, and a computer-readable medium are provided. The user trial feedback method includes the following steps. A launch signal is received to record an image of current frame of the touch screen and launch the user trial feedback tool. An information is inputted by the user in the user trail feedback tool, and logs related to the inputted information are collected and upload to a server along with the recorded image of the current frame.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: February 20, 2018
    Assignee: HTC Corporation
    Inventors: Wan-Yun Chen, Kuan-Chuan Su, Kuan-Chi Chen
  • Patent number: 9715251
    Abstract: A portable device includes a keyboard unit; a display unit; a connection unit which is connected to each of the keyboard unit and the display unit, moves relatively with respect to each of the keyboard unit and the display unit, and supports the display unit so that the display unit covers or uncovers the keyboard unit; and a controller which is placed inside the connection unit and controls operation of the portable device.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: July 25, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-seok Chung, Zion Kwon, Chang-ho Lee, Han-kyung Ji, Se-hun Oh, Yeo-wan Yun
  • Patent number: 9683746
    Abstract: A combustion apparatus is provided. The combustion apparatus includes a fuel reservoir storing fuel therein, and a main body connected to the fuel reservoir by a flexible tube. The main body receives fuel from the fuel reservoir and combusts the fuel therein. The main body is partitioned into an upper space and a lower space by a partition plate. The main body includes a combustor that is provided in the upper space and combusts fuel supplied from the fuel reservoir, a blower that is provided in the lower space to supply air to the combustor, and a heating unit that is removably coupled to the combustor and completely combusts air incompletely combusted in the combustor. The combustion apparatus completely combusts liquefied animal and vegetable oil, thus reducing a tar generation rate.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: June 20, 2017
    Assignee: FLINT Co., Ltd.
    Inventor: Seong Wan Yun
  • Publication number: 20160238258
    Abstract: A combustion apparatus according to one aspect of the present invention comprises a fuel storage container for storing fuel, a combustor having a certain length and connected to the fuel storage container and a pipe so as to be supplied with fuel and combust fuel, an air blower disposed at one end of the combustor and supplying air into the combustor, and a flame plate disposed over the combustor in a longitudinal direction and perfectly combusting air that is imperfectly combusted in the combustor. The combustor has a groove formed in a longitudinal direction of the combustor, an ignition heater disposed in the longitudinal direction of the groove and generating heat, an ignition wick disposed over the ignition heater, absorbing fuel, and igniting by heat, and a pair of combustion wicks disposed in the longitudinal direction of the combustor so as to be spaced away from the ignition wick by a certain distance and combusting fuel.
    Type: Application
    Filed: September 25, 2014
    Publication date: August 18, 2016
    Inventor: Seong Wan YUN
  • Publication number: 20160108310
    Abstract: Described herein are wavelength conversion films which utilize photostable organic chromophores. In some embodiments, wavelength conversion films and chromophores exhibit improved photostability. In some embodiments, a wavelength conversion film comprising luminescent compounds is useful for improving the solar harvesting efficiency of solar cells, solar panels, or photovoltaic devices. In some embodiments, a wavelength conversion film comprising multiple luminescent compounds is useful for greenhouse roofs. Some embodiments provide an improved solar light wavelength profile for improved plant nutrition and/or growth.
    Type: Application
    Filed: March 25, 2014
    Publication date: April 21, 2016
    Inventors: Tao Gu, Hongxi Zhang, Weiping Lin, Wan-Yun Hsieh, Michiharu Yamamoto
  • Patent number: D741319
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: October 20, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeo-Wan Yun, Se-Hun Oh
  • Patent number: D751077
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: March 8, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Sang Park, Chang-Ho Lee, Yeo-Wan Yun