Patents by Inventor Hwajin An

Hwajin An 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: 20180084963
    Abstract: A vacuum cleaner according to an aspect includes a case defining a dust collecting space in which dust is stored and having a boss, a dust container cover rotatably connected to the case and configured to open/close the dust collecting space, and an opening/closing part configured to open the dust container cover, wherein the dust container cover has a cover locker having a rib caught by the boss, the opening/closing part includes a pair of push parts installed in the case and elastically deformed by a user, and the rib is spaced apart from the boss as the cover locker is deformed while the pair of push parts are moved in a direction in which the push parts become closer to each other.
    Type: Application
    Filed: September 15, 2017
    Publication date: March 29, 2018
    Inventors: Hwajin LIM, Seongho PARK, Youngho KIM
  • Publication number: 20180009200
    Abstract: A plastic substrate includes: a plastic support member having light transmittance; and a first organic-inorganic hybrid layer on the plastic support member. The first organic-inorganic hybrid layer includes: a first organic-inorganic hybrid matrix; and ions implanted into the first organic-inorganic hybrid matrix at a side opposite to a side adjacent the plastic support member. An amount of the ions per unit area is in a range from about 2×1013/cm2 to about 2×1014/cm2.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 11, 2018
    Inventors: Jinnyoung HEO, Hwajin OH, Hyemin SEO, Sungguk AN
  • Publication number: 20170347850
    Abstract: A vacuum cleaner includes a cleaner main body, a suction device, a suction motor, and a dust container. The dust container includes a dust collection body configured to contain dust, an opening/closing portion rotatably coupled to the dust collection body and configured to rotate to thereby open and close at least a portion of the dust collection body, and an operation portion connected to the dust collection body and configured to rotate in both a first direction and a second direction opposite the first direction. The opening/closing portion is configured to rotate based on the operation portion rotating in the first direction, and configured to rotate based on the operation portion rotating in the second direction.
    Type: Application
    Filed: June 2, 2017
    Publication date: December 7, 2017
    Inventors: Hwajin LIM, Seongho PARK, Youngho KIM
  • Patent number: 9655489
    Abstract: Provided is a vacuum cleaner. The vacuum cleaner includes a cleaner body including a suction motor for generating a suction force, a suction part communicating with the cleaner body to suction air and dusts, a battery disposed in the cleaner body or suction part to supply a power to the suction motor, and a cleaner connector disposed on the cleaner body or the suction part, a charger including a charger connector separably connected to the cleaner connector to charge the battery, and a disconnection member disposed on the cleaner body or the suction part to selectively connect or disconnect the cleaner connector to or from the battery.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: May 23, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Gunho Ha, Hwajin Lim, Changhoon Lee
  • Publication number: 20170094577
    Abstract: The present disclosure relates to a communication method and system for converging a 5 th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method for a base station to perform communication in a wireless communication system includes transmitting an interface setup request message related to tracking area information to at least one mobility management entity (MME) in a first MME pool.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 30, 2017
    Inventors: Sunghoon Kim, Sung Hwan Won, Hwajin Cha, Songyean Cho
  • Publication number: 20170055314
    Abstract: A terminal connection management method of the present invention comprises the steps of setting a signal timer corresponding to a signal bearer of a terminal and a data timer corresponding to a data bearer, confirming whether the signal timer and the data timer have expired, and disconnecting from the terminal if both of the signal timer and the data timer have expired.
    Type: Application
    Filed: February 16, 2015
    Publication date: February 23, 2017
    Inventors: Hwajin CHA, Donmyoung LEE, Jungkap LEE, Hanseok KIM
  • Publication number: 20160287043
    Abstract: Provided is a vacuum cleaner. The vacuum cleaner includes a cleaner body including a suction motor for generating a suction force, a suction part communicating with the cleaner body to suction air and dusts, a battery disposed in the cleaner body or suction part to supply a power to the suction motor, and a cleaner connector disposed on the cleaner body or the suction part, a charger including a charger connector separably connected to the cleaner connector to charge the battery, and a disconnection member disposed on the cleaner body or the suction part to selectively connect or disconnect the cleaner connector to or from the battery.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 6, 2016
    Inventors: Gunho HA, Hwajin Lim, Changhoon Lee
  • Publication number: 20150320284
    Abstract: Provided is a vacuum cleaner. The vacuum cleaner includes a cleaner body including a suction motor for generating a suction force, a suction part communicating with the cleaner body to suction air and dusts, a battery disposed in the cleaner body or suction part to supply a power to the suction motor, and a cleaner connector disposed on the cleaner body or the suction part, a charger including a charger connector separably connected to the cleaner connector to charge the battery, and a disconnection member disposed on the cleaner body or the suction part to selectively connect or disconnect the cleaner connector to or from the battery.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 12, 2015
    Inventors: Gunho Ha, Hwajin Lim, Changhoon Lee
  • Publication number: 20150320285
    Abstract: The vacuum cleaner includes a cleaner body comprising a suction motor for generating a suction force, a suction part that communicates with the cleaner body to suction air and dusts, a battery disposed in the cleaner body or the suction part to supply a power to the suction motor, a charger separably connected to the cleaner body or the suction part to charge the battery, and a voltage regulator regulating a voltage between an output terminal of the charger and the suction motor so that a voltage outputted from the charger is greater than that inputted into the suction motor.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 12, 2015
    Inventors: Changhoon LEE, Hwajin LIM, Gunho HA
  • Publication number: 20150320283
    Abstract: Provided is a vacuum cleaner. The vacuum cleaner includes a cleaner body including a suction motor for generating a suction force, a suction part communicating with the cleaner body to suction air and dusts, and a battery assembly disposed on the cleaner body or the suction part to supply a power to the suction motor. The battery assembly includes a plurality of battery cells and a support device supporting the plurality of battery cells so that the plurality of battery cells are spaced apart from each other.
    Type: Application
    Filed: April 28, 2015
    Publication date: November 12, 2015
    Inventors: Changhoon LEE, Hwajin Lim, Gunho Ha
  • Publication number: 20150215822
    Abstract: A session management method and apparatus for managing mobility and session procedures integrally to improve manage the session of the terminal efficiently in the handover procedure. The session management method of a control entity includes transmitting a bearer management message for one of establishing, modifying, and releasing a bearer to a source base station, transmitting, when a handover of a terminal occurs before the bearer management is completed, a handover request including at least one of a first list including the bearers being managed by the source base station and a second list including the bearers being managed by the control entity to a target base station, and receiving a handover response from the target base station, wherein the handover response includes a bearer list generated based on one of the first and second list.
    Type: Application
    Filed: January 29, 2015
    Publication date: July 30, 2015
    Inventors: Sung Hwan Won, Hwajin Cha, Songyean Cho
  • Publication number: 20150044467
    Abstract: Provided is a method of growing an ingot. The method of growing the ingot includes melting a silicon to prepare a silicon melt solution, preparing a seed crystal having a crystal orientation [110], growing a neck part from the seed crystal, and growing an ingot having the crystal orientation [110] from the neck part. The neck part has a diameter of about 4 mm to about 8 mm.
    Type: Application
    Filed: November 30, 2011
    Publication date: February 12, 2015
    Inventors: Hwajin Jo, Sanghee Kim, Youngho Jung, Namseok Kim
  • Publication number: 20140372829
    Abstract: A storage device in accordance with the inventive concepts includes at least one nonvolatile memory device and a memory controller controlling the nonvolatile memory device. The memory controller includes at least one processor configured to control an operation of the storage device, and configured to perform at least one of a trim operation according a trim command and a garbage collection operation and a risk protection controller configured to perform a risk protection operation that disables at least one of the garbage collection operation or the trim operation according to a risk protection signal internally generated or a risk protection command input from the external device.
    Type: Application
    Filed: May 5, 2014
    Publication date: December 18, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young-Jin PARK, Wonseok LEE, Hwajin JUNG
  • Publication number: 20140173189
    Abstract: A method of managing data of a computing system is provided, where the computing system uses a nonvolatile memory as a main memory. The method includes loading a process into the nonvolatile memory in response to a first run request, freezing the process loaded into the nonvolatile memory in response to an exit request of the process, and activating the process frozen in the nonvolatile memory in response to a second run request of the process. Freezing the process releases control of the process without deleting the process loaded into the nonvolatile memory.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 19, 2014
    Inventors: YOUNG-JIN PARK, HWAJIN JUNG
  • Publication number: 20130292368
    Abstract: A steering wheel includes a heating element which heats an entire rim to a uniform temperature. The heating element is coated as an electrically conductive paste on a surface of the rim, and is formed such that an electrical resistance increases away from an inner diameter portion of the rim toward an outer diameter portion of the rim.
    Type: Application
    Filed: April 22, 2013
    Publication date: November 7, 2013
    Inventor: Hwajin Co., Ltd.
  • Publication number: 20060110508
    Abstract: The present invention relates to a method for preparing dried alpha-rice by vacuum drying comprising: (a) washing out impurities from the surface of hulled-rice by using a washing device; (b) immersing the washed rice in water for 3 to 120 minutes to contain water uniformly, and then drying it naturally for 3 to 30 minutes; (c) putting the soaked rice into an auto conveyor rice cooker, wherein the temperature of water is maintained at 80 to 98% C, and then scalding it for 8 to 20 minutes to be boiled rice; (d) cooling the boiled rice rapidly by shower at first, and then washing out it in a cooling tank secondly; and (e) putting the boiled rice into a vacuum drying room, which temperature is maintained at 60 to 98% C, and reducing the internal pressure to below 1 Torr, and then vacuum drying the boiled rice until its water content becomes less 5%.
    Type: Application
    Filed: April 21, 2003
    Publication date: May 25, 2006
    Applicant: Bulro Corp.
    Inventors: Chulbae Choi, Kyusik Choi, Kyungho Choi, Kwangsung Han, Hwajin An
  • Publication number: 20040059573
    Abstract: A voice command identifier for a voice recognition system is disclosed. In one aspect of the invention, the voice command identifier can selectively identify and recognize a user voice command received along with the background sound generated from the speaker of a device being controlled.
    Type: Application
    Filed: August 19, 2003
    Publication date: March 25, 2004
    Inventor: Hwajin Cheong