Patents by Inventor Chul Jin Choi

Chul Jin Choi 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: 20090265953
    Abstract: The present invention relates to a dryer and a method for controlling the same. The method for controlling a dryer includes a steam supply step for supplying steam generated in a steam generator to a dram, and a hot air supply step for supply hot air generated in a hot air heater to the drum. The method according to the present invention has an advantageous effect of removing wrinkles efficiently.
    Type: Application
    Filed: June 11, 2007
    Publication date: October 29, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Sang Hun Bae, Chang Woo Son, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim
  • Publication number: 20090260406
    Abstract: The present invention relates to a laundry machine using steam. The laundry machine includes a drum for holding laundry, a steam generator for generating steam, a water supply unit for supplying water to the steam generator, an additive supply unit for supplying additive to the steam generator, and a supply line for supplying the steam and the additive to the drum.
    Type: Application
    Filed: August 1, 2007
    Publication date: October 22, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Sang Hun Bae, Dong Yoon Kim, Chul Jin Choi, Dong Hyun Kim, Young Bok Son
  • Publication number: 20090260246
    Abstract: The present invention relates to a laundry dryer. The laundry dryer has a drum rotatably provided to a cabinet, a hot air heater heating air to supply hot air to the drum, a steam generator selectively supplying steam to the drum, and a water supply source provided to one side of the cabinet. And, the water supply source has an accommodating part for storing water supplied to the steam generator and a water supply means for supplying the water within the accommodating part to the steam generator.
    Type: Application
    Filed: July 27, 2007
    Publication date: October 22, 2009
    Inventors: Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son
  • Publication number: 20090235553
    Abstract: The present invention relates to a laundry dryer capable of removing and/or preventing wrinkles of laundry. A laundry dryer includes a drum to hole laundry, a steam generator to selectively supply steam to the drum, a water supply source to hold water that is supplied to the steam generator, a water softening member provided in the water supply source to soften water, and a drain hose through which the water of the water supply source is selectively drained outside.
    Type: Application
    Filed: September 27, 2007
    Publication date: September 24, 2009
    Inventors: Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son
  • Publication number: 20090199424
    Abstract: The present invention relates to a dryer. The dryer includes a drum (20) for holding a drying object, a hot air heater (90) for heating air to supply hot air to the drum, and a fine water particle generating device (410) for generating fine water particles to supply the fine water particles to the drum (20), thereby permitting effective removal of creases from clothes.
    Type: Application
    Filed: June 15, 2007
    Publication date: August 13, 2009
    Inventors: Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son
  • Publication number: 20090120140
    Abstract: The present invention relates to a washing machine, and the washing machine includes a drum rotatably installed in a cabinet, an air heater for heating air, to supply hot air to the drum, a steam generator for generating steam, and supply the steam to the drum, and a water supply unit including a nozzle for spraying the steam generated by the steam generator to an interior of the drum, and a nozzle holder having a coupler at a rear surface of the nozzle holder, to separably mount the nozzle at a position adjacent to the drum.
    Type: Application
    Filed: September 24, 2008
    Publication date: May 14, 2009
    Applicant: LG Electronics Inc.
    Inventors: Yeon Sik Choi, Chang Woo Son, Dong Geun Lee, Dong Hyun Kim, Heung Jae Kim, Ju Han Yoon, Young Bok Son, Sang Hun Bae, Chul Jin Choi
  • Publication number: 20090113745
    Abstract: A laundry machine, more particularly, a dryer is disclosed. A dryer includes a cabinet, a drum in which a drying object is held, a steam generation device to supply steam to the drum, a water supply device to supply water to the steam generation device in order to generate steam, an additive holding part in which an additive is held, and an additive supply device to supply the additive held in the additive holding part to the drum.
    Type: Application
    Filed: October 17, 2008
    Publication date: May 7, 2009
    Inventors: Chul Jin Choi, Sang Hun Bae, Yang Hwan Kim, Tae Hee Lee, Min Ji Kim, Ku Young Son
  • Publication number: 20090113755
    Abstract: A laundry machine, more particularly, a dryer and a control method of a dryer may be disclosed. A control method of a dryer includes (a) of supplying an additive to a drum in an initial part of a drying cycle for drying a drying object; and (b) of supplying an additive to the drum in a last part of the drying cycle.
    Type: Application
    Filed: October 28, 2008
    Publication date: May 7, 2009
    Inventors: Chul Jin Choi, Sang Hun Bae, Yang Hwan Kim, Min Ji Kim
  • Publication number: 20090100882
    Abstract: A laundry machine having a steam generator is disclosed. A heater is controlled, such that steam generation coincides with a predetermined time period, whereby the steam supply time is enabled to be controlled with relative accuracy. If an error occurs when water is being supplied to the steam generator, then an error message is displayed such that a user may be informed of the error. If a predetermined time period has elapsed, then a pump is stopped to prevent an excessive amount of water from being supplied to the steam generator.
    Type: Application
    Filed: September 12, 2008
    Publication date: April 23, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Sang Hun Bae, Chul Jin Choi, Ju Han Yoon, Tae Hee Lee
  • Publication number: 20090078007
    Abstract: A laundry machine is disclosed. The laundry machine includes a drum in which laundry is put, a steam generator to generate steam, a water supply line connected to the steam generator, a steam line connected to the steam generator, and a valve placed in the steam line, wherein the valve is controlled to block the steam line to prevent water from flowing from the steam generator to the drum.
    Type: Application
    Filed: June 6, 2008
    Publication date: March 26, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Sang Hun Bae, Chul Jin Choi, Ju Han Yoon, Tae Hee Lee
  • Publication number: 20080282745
    Abstract: A laundry machine, more particularly a multi-laundry machine constructed by adding a new function to a conventional laundry machine, is disclosed. The multi-laundry machine includes a laundry machine and an auxiliary drying machine installed at one side of the laundry machine. The auxiliary drying machine includes a drawer, a module installed at one side of the drawer for generating air flow, and an air nozzle connected to the module for guiding the spray direction of the air.
    Type: Application
    Filed: May 14, 2008
    Publication date: November 20, 2008
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Joo Han, Chul Jin Choi, Young Bok Son
  • Publication number: 20080168679
    Abstract: The present invention relates to a laundry machine and a control method thereof. The control method includes supplying steam, generated by a steam generator, into a drum, and supplying hot air into the drum to dry clothes wetted by the steam. According to the present invention, it is possible to effectively removing wrinkles on clothes.
    Type: Application
    Filed: October 31, 2007
    Publication date: July 17, 2008
    Applicant: LG Electronics Inc.
    Inventors: Chang Woo Son, Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim
  • Patent number: 7396502
    Abstract: The present invention provides a method for producing nano-sized Fe powder having a polymer coated layer on a surface thereof, so as to prevent the nano-sized Fe powder from being oxidized under atmosphere. The method includes: gasifying an iron pentacarbonyl (Fe(CO)5) or an iron acetate ((CH3CO2)2Fe) precursor in a ceramic bubbler; forming nano-sized Fe particles due to the crystallization of Fe gas while mixing the gasified precursor with Ar gas in a reactor; and precipitating the nano-sized Fe particles in a polymer solution in a chamber, before the nano-sized Fe particles are oxidized. According to this technique, Fe powder on the order of tens of nms in size, and having a polymer coated layer, are obtained from the Fe precursor. A system for producing the nano-sized Fe powder is also disclosed.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: July 8, 2008
    Assignee: Korea Institute of Machinery and Materials
    Inventors: Byung Kee Kim, Dong Won Lee, Chul-Jin Choi
  • Publication number: 20080148494
    Abstract: The present invention relates to a laundry machine that can prevent as well as remove wrinkles of laundry. A laundry machine includes a drum rotatable in a cabinet; a hot air heater to supply hot air to the drum by heating air; a steam generator to supply steam to the drum; a sensor to sense a laundry amount inside the drum; and a controller to control an amount of steam supplied to the drum based on sensing results of the sensor. In another aspect of the present invention, a controlling method of a laundry machine includes sensing a laundry amount inside a drum and drying the laundry by supplying hot air to the drum. In the drying of the laundry by supplying hot air to the drum, an amount of hot air is adjusted based on the laundry amount sensed in the sensing of the laundry amount inside the drum.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 26, 2008
    Applicant: LG ELECTRONICS INC.
    Inventors: Chang Woo Son, Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim
  • Publication number: 20080148596
    Abstract: Method for controlling a dryer having a steam generator for generating high temperature steam with heat generation of a steam heater, including a hot air supply step for supplying dried hot air to a drum for drying clothes, and a moisture supply step for supplying moisture to the drum for removing static electricity from the clothes dried in the hot air supply step.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 26, 2008
    Applicant: LG ELECTRONICS INC.
    Inventors: Chang Woo Son, Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim
  • Publication number: 20080141550
    Abstract: The present invention relates to a laundry machine. The laundry machine includes a drum rotatably mounted in a cabinet, a hot air heater to heat air and supply hot air into the drum, a steam generator to supply steam into the drum, a water supply source to supply water to the steam generator, a pump to supply water in the water supply source to the steam generator, and a flow passage blocking prevention unit to prevent blocking of a flow passage connecting the pump and the steam generator.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 19, 2008
    Applicant: LG Electronics Inc.
    Inventors: Sang Hun Bae, Chang Woo Son, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim
  • Publication number: 20080141557
    Abstract: The present invention relates to a laundry dryer that can prevent as well as remove wrinkles of laundry. A laundry dryer has a water supply source configured to be detachable from the laundry machine and a switch to switch a steam generator or a pump off or on when the water supply source is detached or not.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 19, 2008
    Applicant: LG ELECTRONIC INC.
    Inventors: Chang Woo Son, Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim
  • Publication number: 20080141553
    Abstract: The present invention relates to a laundry dryer that can prevent as well as remove wrinkles of laundry. A laundry machine includes a drum selectively rotatable, a steam generator to supply high temperature steam to the drum, and a controller to determine whether there is a malfunction of the steam generator by using a temperature increasing time inside the steam generator.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 19, 2008
    Applicant: LG ELECTRONICS INC.
    Inventors: Chang Woo Son, Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim
  • Publication number: 20080141734
    Abstract: Laundry machine including a selectively rotatable drum, a pump for supplying water to a steam generator and controller for determining the pump of being out of order by using a time period required for supplying water to a preset water level of the steam generator or a current to the pump, thereby realizing product safety effectively.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 19, 2008
    Applicant: LG ELECTRONICS INC.
    Inventors: Chang Woo Son, Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim
  • Publication number: 20080141554
    Abstract: The present invention relates to a laundry machine. The laundry machine includes a drum rotatably mounted in a cabinet, a hot air heater to heat air and supply hot air into the drum, a steam generator to supply steam into the drum, a water supply source detachably mounted in the cabinet to supply water into the steam generator, and a water leakage preventing unit to prevent water leakage when the water supply source is detachably mounted.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 19, 2008
    Applicant: LG Electronics Inc.
    Inventors: Sang Hun Bae, Chang Woo Son, Chul Jin Choi, Dong Hyun Kim, Young Bok Son, Heung Jae Kim