Patents by Inventor Un-ho Baik

Un-ho Baik 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: 6496674
    Abstract: In one aspect, a carrier recovery apparatus of a liquid electrophotographic printer includes a drying unit, a cooling unit for cooling and condensing carrier vapor evaporated by the drying unit, a condenser for condensing the carrier vapor which has not been condensed by the cooling unit, and a carrier recovery container. In another aspect, a carrier recovery apparatus of a liquid electrophotographic printer includes a drying unit, a first cooling unit for cooling and condensing carrier vapor evaporated by the drying unit, a second cooling unit for cooling the carrier which has passed through the first cooling unit, a condenser for condensing the carrier vapor which has not been condensed by the first and second cooling units, and a carrier recovery container. Accordingly, the efficiency of condensing carrier vapor is improved. As a result, the recovery percentage of a carrier increases, and the duration of a filter is extended.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: December 17, 2002
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jeong-hun Pang, Yong-geun Kim, Un-ho Baik
  • Publication number: 20020090232
    Abstract: In one aspect, a carrier recovery apparatus of a liquid electrophotographic printer includes a drying unit, a cooling unit for cooling and condensing carrier vapor evaporated by the drying unit, a condenser for condensing the carrier vapor which has not been condensed by the cooling unit, and a carrier recovery container. In another aspect, a carrier recovery apparatus of a liquid electrophotographic printer includes a drying unit, a first cooling unit for cooling and condensing carrier vapor evaporated by the drying unit, a second cooling unit for cooling the carrier which has passed through the first cooling unit, a condenser for condensing the carrier vapor which has not been condensed by the first and second cooling units, and a carrier recovery container. Accordingly, the efficiency of condensing carrier vapor is improved. As a result, the recovery percentage of a carrier increases, and the duration of a filter is extended.
    Type: Application
    Filed: June 15, 2001
    Publication date: July 11, 2002
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong-Hun Pang, Yong-Geun Kim, Un-Ho Baik
  • Patent number: 6411790
    Abstract: A developing solution feeder of a wet type electrophotographic color printer includes a plurality of circulation tanks for storing the developing solution to be fed to a developing unit; a plurality of injection nozzles for jetting the developing solution stored in the circulation tanks to a developing gap of the developing unit; a plurality of ink storage tanks and a carrier storage tank for respectively storing the condensed ink of a certain color and a carrier to be fed to the circulation tanks, respectively; a waste tank for collecting the waste developing solution produced from the circulation tanks; a refill cartridge for the supplementation of the condensed ink or the carrier; developing solution refilling/waste developing solution collecting means for refilling the ink storage tanks or the carrier storage tank with the condensed ink or the carrier, respectively, and for evacuating the waste developing solution collected in the waste tank to the empty refill cartridge; and ink injecting/constant feedin
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: June 25, 2002
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Jong-woo Kim, Chung-guk Baek, Un-ho Baik
  • Patent number: 6131004
    Abstract: In an air circulation system of a liquid electrophotographic printer, an engine shell includes a developing unit for developing an electrostatic latent image which is formed on a photoreceptor belt and having an air injector, a drying unit for drying the developed image, and a transferring unit for transferring the developed image to print paper. Air in the engine shell is taken in and exhausted to the outside though a main path. A filter is installed on the main path for filtering air. A return path is branched from the main path and through which the air taken in from the engine shell is supplied to the air injector. An air pump provides a driving force such that air can flow along the main path and the return path. Thus, as air can be exhausted from the engine shell and the exhausted air can be re-supplied to the air injector using a single pump, the structure of the system is simplified.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: October 10, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-su Cho, Yun-geun Lee, Un-ho Baik
  • Patent number: 6101356
    Abstract: The carrier recovery apparatus includes a water/carrier separating unit with a level sensor installed at a predetermined level on a purge tank. The level sensor detects the level of the liquid carrier in the purge tank and generates a signal representing the level of the liquid carrier.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: August 8, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-woo Kim, Un-ho Baik
  • Patent number: 6085055
    Abstract: A carrier recovery apparatus of a liquid electrophotographic printer including a dry roller which contacts a photoreceptor belt, for absorbing a liquid carrier therefrom, a heating roller for heating the dry roller and evaporating the carrier, a manifold for hermetically sealing and surrounding the dry roller and the heating roller so as to accommodate the evaporated gas carrier, a circulation line for connecting an outlet and an inlet formed in the manifold to form a closed loop, along which the gas carrier accommodated in the manifold circulates, a driving fan for supplying a driving force which allows the gas carrier to circulate, and a condensing means installed in the circulation line, for cooling and condensing the circulating gas carrier and transmitting the condensed carrier to a cartridge.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: July 4, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-soo Shin, Un-ho Baik