Patents by Inventor Chun-seong Park
Chun-seong Park 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).
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Publication number: 20210071321Abstract: A shielding material fabricating apparatus according to the present invention includes: a mixing unit mixing a resin and a carbon fiber; an extrusion unit extruding a mixture obtained in the mixing unit; and a cutting unit cutting an extrudate extruded from the extrusion unit. The shielding material fabricating apparatus according to the present invention is capable of: reducing a manufacturing time and promoting simplification of a process when fabricating an electromagnetic wave shielding material; improving performance in mixing the resin and the carbon fiber, thereby fabricating an electromagnetic wave shielding material having a superior shielding rate; and cutting a metal-plated carbon fiber and simultaneously making the resin impregnated therein without a delay in time, thereby making it possible to use a long fiber as it is in a non-pelletized state.Type: ApplicationFiled: November 26, 2019Publication date: March 11, 2021Inventors: Seung JEONG, Chun Seong Park
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Publication number: 20210032803Abstract: A conductive and flexible carbon fiber according to the present disclosure includes a carbon fiber; a resin layer formed on the carbon fiber; and a metal plating layer formed on the resin layer. The resin layer of the carbon and flexible carbon fiber according to the present disclosure is uniformly coated on the carbon fiber, such that a breakage of the carbon fiber during the conductive carbon fiber production process may be prevented. In addition, the metal plating layer having the uniform thickness is plated on the resin layer having the uniform thickness, such that the electric conductivity of the carbon fiber may be improved and the flexibility of the carbon fiber may also be increased. In addition, a production process of the carbon and flexible carbon fiber according to the present disclosure is simplified, such that the production cost and time may be saved.Type: ApplicationFiled: October 24, 2019Publication date: February 4, 2021Inventors: Seung Jeong, Young Chul Jin, Jung Hoon Yang, Woo Young Choi, Jae-Hwa Kim, Chun seong Park
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Publication number: 20200170458Abstract: Provided is a beauty tool for nail and skin exfoliation, and specifically, a beauty tool for nail and skin exfoliation including a body, a plate which is coupled to the body and is made of a glass material, a plurality of metal protrusions which are disposed on an upper surface of the plate with a predetermined pattern, and a plurality of concave grooves which are defined with a predetermined depth on the upper surface of the plate and are not covered by the plurality of metal protrusions.Type: ApplicationFiled: April 17, 2019Publication date: June 4, 2020Inventors: Chun Seong PARK, Sung Jung KIM
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Patent number: 8520048Abstract: A laser scanning unit and an image forming apparatus having the same may include a polygonal mirror connected to a rotor of a driving motor, a member disposed opposite the rotor in the axial direction of a rotating shaft of the driving motor and a flux-reduction unit configured to reduce the flux of air or any other gas flowing in the space between the rotor and the member.Type: GrantFiled: September 16, 2009Date of Patent: August 27, 2013Assignee: SAMSUNG Electronics Co., Ltd.Inventor: Chun Seong Park
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Publication number: 20120220074Abstract: An apparatus and method for producing a dye-sensitized cell are provided, in which a pre-transparent electrode and an opposite electrode are partially bonded, dye molecules are applied to the bonded electrodes followed by washing, an electrolyte is injected, and then the electrodes are hermetically sealed. With the apparatus and method, the manufacturing cost can be reduced and the manufacturing process can be simplified.Type: ApplicationFiled: May 4, 2012Publication date: August 30, 2012Applicants: SEWON CO., LTD., DMS CO., LTD.Inventors: Chun-Seong Park, Jong Min Kim, Jung Min Hwang, Gang-Beom Kim, Jeong-Yong Eum, Hyun-Seung Cho
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Patent number: 8192509Abstract: An apparatus and method for producing a dye-sensitized cell are provided, in which a pre-transparent electrode and an opposite electrode are partially bonded, dye molecules are applied to the bonded electrodes followed by washing, an electrolyte is injected, and then the electrodes are hermetically sealed. With the apparatus and method, the manufacturing cost can be reduced and the manufacturing process can be simplified.Type: GrantFiled: March 15, 2010Date of Patent: June 5, 2012Assignees: DMS Co., Ltd., Sewon Co., Ltd.Inventors: Chun-Seong Park, Jong Min Kim, Jung Min Hwang, Gang-Beom Kim, Jeong-Yong Eum, Hyun-Seung Cho
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Patent number: 8110990Abstract: Disclosed is an atmospheric pressure plasma apparatus for enhancing and or controlling the dissociation of a secondary gas by converting a source gas into a plasma state at atmospheric pressure and controlling the interaction between that plasma and the secondary gas using porous metal, and ceramic tubes to create a path having controllable isolation from the region where plasma is generated.Type: GrantFiled: December 9, 2008Date of Patent: February 7, 2012Assignees: Korea Institute of Industrial Technology, Board of Regents, The University of Texas SystemInventors: Bum Ho Choi, Jong Ho Lee, Jung Chan Bae, Yong-Seok Park, Chun-Seong Park, Woo Sam Kim, Gil Sik Lee, Lawrence John Overzet, Byeong Jun Lee
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Patent number: 7881168Abstract: An optical pickup apparatus is provided for use in a recording/reproducing apparatus to record/reproduce information on/from recording media having different formats. Such an optical pickup apparatus comprises a dual wavelength laser diode; a hologram module arranged to split a light which is incident to a recording medium into a plurality of beams; and a photo-detector arranged to receive a light beam reflected from the recording medium and detect an information signal and a signal for servo control. Each of the split beams is focused on a predetermined position corresponding to a format of the recording medium. The light beams reflected from the recording medium are detected by the photo-detector to generate a focus error signal and a tracking error signal. Thus, the optical pickup apparatus records and reproduces information on and from recording media having different formats by using a hologram of a simple pattern.Type: GrantFiled: April 9, 2004Date of Patent: February 1, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Bong-gi Kim, Tae-youn Heor, Seong-su Park, Chun-seong Park, Soo-han Park
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Publication number: 20100230046Abstract: An apparatus and method for producing a dye-sensitized cell are provided, in which a pre-transparent electrode and an opposite electrode are partially bonded, dye molecules are applied to the bonded electrodes followed by washing, an electrolyte is injected, and then the electrodes are hermetically sealed. With the apparatus and method, the manufacturing cost can be reduced and the manufacturing process can be simplified.Type: ApplicationFiled: March 15, 2010Publication date: September 16, 2010Applicants: DMS Co., Ltd., TG-Energy Inc.Inventors: Chun-Seong Park, Jong Min Kim, Jung Min Hwang, Gang-Beom Kim, Jeong-Yong Eum, Hyun-Seung Cho
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Patent number: 7724616Abstract: An optical recording/reproducing apparatus, medium, and method and a controlling apparatus, medium, and method thereof. The recording/reproducing apparatus includes an optical pickup actuator including a holder formed on a base, a blade connected to the holder with a plurality of elastic supporters, a pair of focus coils for operating the blade in a focus direction, track coils for operating the blade in a tracking direction, magnets, a memory for storing a lookup table for the height of the blade according to electric current, a lookup table for the tilt of the blade according to the electric current supplied to the focus coils, a lookup table for the actual tilt of an optical disk according to the height of the blade, and a controller for computing a tilt difference between the optical disk and the blade and controlling the electric currents supplied to the focus coils to compensate for the tilt difference.Type: GrantFiled: June 23, 2005Date of Patent: May 25, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Bong-gi Kim, Soo-han Park, Jung-gug Pae, Chun-seong Park
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Publication number: 20100086329Abstract: Disclosed herein are a laser scanning unit and an image forming apparatus having the same. The laser scanning unit may include a polygon minor connected to a rotor of a driving motor, a member disposed opposite the rotor in the axial direction of a rotating shaft of the driving motor and a flux-reduction unit configured to reduce the flux of air or any other gas flowing in the space between the rotor and the member.Type: ApplicationFiled: September 16, 2009Publication date: April 8, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Chun Seong PARK
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Publication number: 20100033096Abstract: Disclosed is an atmospheric pressure plasma apparatus for enhancing and or controlling the dissociation of a secondary gas by converting a source gas into a plasma state at atmospheric pressure and controlling the interaction between that plasma and the secondary gas using porous metal, and ceramic tubes to create a path having controllable isolation from the region where plasma is generated.Type: ApplicationFiled: December 9, 2008Publication date: February 11, 2010Applicants: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY, BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Bum Ho Choi, Jong Ho Lee, Jung Chan Bae, Yong-Seok Park, Chun-Seong Park, Woo Sam Kim, Gil Sik Lee, Lawrence John Overzet, Byeong Jun Lee
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Patent number: 7450477Abstract: An optical pickup which can remove birefringence due to the non-uniformity of an optical recording medium by using a polarization beam splitter. The optical pickup includes a light source emitting a laser beam, a beam splitter reflecting part of incident light and straight transmitting the remaining light to change a proceeding path of the incident light, an objective lens focusing the incident light passed through the beam splitter to form a light spot on an optical recording medium, a polarization beam splitter arranged on an optical path between the beam splitter and the objective lens for transmitting light having one polarization and reflecting light having a different polarization.Type: GrantFiled: November 22, 2004Date of Patent: November 11, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Bong-gi Kim, Soo-han Park, Chun-seong Park
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Patent number: 7450476Abstract: A light emitting module and method and an optical pickup apparatus employing the same are provided. The light emitting module includes a base, a semiconductor laser that is disposed on the base and emits a laser beam of a predetermined wavelength, a cap surrounding the semiconductor laser, a beam shaping window that is fitted with a predetermined portion of the cap corresponding to the propagation path of the laser beam and shapes a transmitted laser beam while reflecting a portion of an incident beam, and a quarter wave plate that is disposed in the propagation path of the laser beam and in front of the beam shaping window and transforms a laser beam horizontally polarized after passing through the beam shaping window into a circularly polarized beam while converting a beam reflected from an optical disc into a vertically polarized beam.Type: GrantFiled: November 9, 2004Date of Patent: November 11, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Bong-Gi Kim, Do-Hoan Nam, Chun-Seong Park, Mun-Whan Lee
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Patent number: 7254098Abstract: A CD-DVD compatible optical pickup in which both on-axis and off-axis light form a circular light spot on a recording surface of an optical recording medium, and an optical recording and/or reproducing apparatus using the same. The CD-DVD compatible optical pickup includes an optical output module, an objective lens, an optical path conversion unit, a photodetector, and an actuator. The optical output module has a mount and light sources emitting light of different wavelengths. The objective lens focuses the emitted light onto two types of optical recording media. The optical path conversion unit between the optical output module and objective lens, converts incident light. The photodetector receives beams emitted from the light sources, reflected from the optical recording media, and then passed through the optical path conversion unit, detecting data and error signals. The actuator has a movable member, moving the objective lens and compensating focusing and tracking error signals.Type: GrantFiled: October 3, 2003Date of Patent: August 7, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-gug Pae, Bong-gi Kim, Chun-seong Park, Soo-han Park, Moon-whan Lee, Do-whan Nam, Seong-su Park, Jung-woo Hong, Tae-youn Heor
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Publication number: 20070070825Abstract: An optical pickup apparatus is provided for use in a recording/reproducing apparatus to record/reproduce information on/from recording media having different formats. Such an optical pickup apparatus comprises a dual wavelength laser diode; a hologram module arranged to split a light which is incident to a recording medium into a plurality of beams; and a photo-detector arranged to receive a light beam reflected from the recording medium and detect an information signal and a signal for servo control. Each of the split beams is focused on a predetermined position corresponding to a format of the recording medium. The light beams reflected from the recording medium are detected by the photo-detector to generate a focus error signal and a tracking error signal. Thus, the optical pickup apparatus records and reproduces information on and from recording media having different formats by using a hologram of a simple pattern.Type: ApplicationFiled: April 9, 2004Publication date: March 29, 2007Inventors: Bong-gi Kim, Tae-youn Heor, Seong-su Park, Chun-seong Park, Soo-han Park
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Patent number: 7145859Abstract: An optical pickup includes a light source which emits first and second lights having different wavelengths for a first recording medium and a second recording medium having a relatively large thickness, respectively, an optical path changer which alters a traveling path of incident light, and an objective lens which focuses the first and second lights on the recording medium. While the light source emits the first light, a photodetector is adjusted to be aligned with the optical axis for the first recording medium. The light source and/or a sensing lens are adjusted in the direction of the optical axis, and the tilt of the objective lens is adjusted. Next, while the light source is operated to emit the second light, the light source is adjusted in a rotating direction. As such, an optical axis alignment is completed for the first and second recording media.Type: GrantFiled: September 17, 2002Date of Patent: December 5, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Soo-han Park, Young-sun Park, Moon-lwhan Lee, Do-hoan Nam, Chun-seong Park
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Publication number: 20060261243Abstract: An optical reproducing apparatus having a photo detector using a laser diode of two wavelengths. A 16-split photo diode for detecting laser beams respectively for a DVD and a CD enables an optical pick-up compatible with a wide variety of optical discs to be achieved by applying the laser diode of two wavelengths. Focusing error signals and tracking error signals are detected by using different methods according to a type of optical disc, improving production yield and decreasing manufacturing costs of a multi-disc reproduction apparatus.Type: ApplicationFiled: December 22, 2003Publication date: November 23, 2006Inventors: Soo-han Park, Bong-gi Kim, Chun-seong Park, Jung-woo Hong, Jong-uk Kim
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Patent number: 7092325Abstract: A method of arranging an optical pickup system on a deck of an optical recording and/or reproducing apparatus, which enables detection of a tracking error signal using one photodetector based on a three-beam method and by a differential phase detection method. The optical pickup system includes a light source, a diffractive optical element which diffracts a light beam incident from the light source and splits the same into at least three beams, a plate-type beam splitter which changes a propagation path of the light beam, and a photodetector including at least one main photodetector having at least four sections and a plurality of sub-photodetectors. The optical pickup system is constructed so as to have a reflecting mirror redirect the propagation path of the light beam emitted from the light source toward a recording medium.Type: GrantFiled: June 13, 2003Date of Patent: August 15, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Bong-gi Kim, Chun-seong Park, Soo-han Park, Moon-whan Lee, Hyo-chan Lee, Jong-uk Kim, Seong-su Park, Tae-youn Heor, Do-hoan Nam
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Publication number: 20060176790Abstract: An optical disk writing and reading apparatus and a method thereof is provided. The optical disk writing and reading apparatus has an optical pick-up for writing or reading data on an optical disk by using a laser light of a certain wavelength, an optical power calculation part for calculating an optical power of the laser light generated from the optical pick-up, and a micom operating the optical power calculation part by every certain time to detect the optical power of the laser light and adjusting the optical power of the laser light based on a preset optimum optical power to be optimized while writing the data on the optical disk.Type: ApplicationFiled: February 7, 2006Publication date: August 10, 2006Inventors: Jang-hoon Yoo, Soo-han Park, Chun-seong Park, Tae-hoon Lee