Patents by Inventor Yong Joon Park
Yong Joon 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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Patent number: 9214887Abstract: An apparatus and a method for driving a voice coil motor (VCM) may include an instruction signal generating unit generating an instruction signal according to a digital signal generated from an input signal, and a driving unit driving the VCM by selecting a path for a driving current applied to the VCM according to the digital signal and controlling a duty of the driving current according to the instruction signal.Type: GrantFiled: May 13, 2013Date of Patent: December 15, 2015Assignees: Samsung Electro-Mechanics Co., Ltd., ZINITIX CO., LTDInventors: Won Seob Oh, Je Hyun Park, Oh Byoung Kwon, Kyoung Won Hyun, Jung Wook Hwang, Hoon Heo, Hong Soo Jung, Yong Joon Park
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Patent number: 9188762Abstract: Disclosed herein is a camera module in which a movement of a magnet is controlled by only magnetic force between the magnet and a yoke without a spring for controlling the movement of the magnet which operates up and down. The camera module includes: a lens module; and a main frame supporting the lens module and allowing the lens module to be driven in an optical axis direction, wherein the lens module includes: a lens assembly including a plurality of lenses; and a magnet fixed to one side of the lens module, and the main frame includes: a coil facing the magnet, fixed to one side within the main frame, and generating an electric field as power is applied thereto; and a yoke disposed to face the magnet with the main frame and the coil interposed therebetween and controlling driving of the lens module by attraction with the magnet.Type: GrantFiled: March 13, 2013Date of Patent: November 17, 2015Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jae Ho Baik, Won Seob Oh, Hoon Heo, Jung Seok Lee, Jae Hyuk Lee, Yong Joon Park, Jung Wook Hwang
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Patent number: 8995241Abstract: Embodiments of the invention provide an apparatus for driving a voice coil motor actuator providing a driving signal to a coil for controlling a position of a lens barrel in which a magnet is equipped. The apparatus includes a plurality of hall sensors configured to detect the position of the lens barrel in which the magnet is equipped, and a voice coil motor driving integrated circuit configured to provide the driving signal to the coil based on outputs from the plurality of hall sensors and a received target position. The plurality of hall sensors are embedded in the voice coil motor driving integrated circuit along a moving direction of the magnet.Type: GrantFiled: August 18, 2014Date of Patent: March 31, 2015Assignees: Samsung Electro-Mechanics Co., Ltd., Zinitix Co., Ltd.Inventors: Hoon Heo, Hee Soo Yoon, Seog Jin Hong, Won Seob Oh, Kyoung Won Hyun, Shin Young Cheong, Ga Eun Kang, Sung Sig Kim, Yong Joon Park
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Publication number: 20150084872Abstract: An apparatus, touch controller, and system for adaptive touch scanning is described herein. The apparatus includes logic to calculate a distance traveled between two consecutive touch samples, and logic to compare the distance traveled with a target distance to find an actual error. The apparatus also includes logic to update the scan rate based on the actual error.Type: ApplicationFiled: September 20, 2013Publication date: March 26, 2015Inventors: Kyungtae Han, Dongho Hong, Alexander Min, Yong-Joon Park, Mohamed A. Abdelmoneum
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Publication number: 20150050816Abstract: A method of preparing a silicon thin film, silicon thin film prepared using the method, and an electronic device including the silicon thin film are provided. The method includes applying an oxidized silicon element solution to a substrate and sintering the silicon oxide film to prepare a compact silicon oxide thin film, electrochemically reducing the silicon oxide thin film to form a porous silicon film, and re-sintering the porous silicon film. Therefore, the silicon thin film used in semiconductors, solar cells, secondary batteries and the like can be easily prepared at a low cost with a smaller number of processes than the conventional methods, and thus price competitiveness of products can be enhanced.Type: ApplicationFiled: August 19, 2014Publication date: February 19, 2015Inventors: Sang Eun Bae, Jong-Yun Kim, Jei-Won Yeon, Tae-Hong Park, Kyuseok Song, Dae Hyeon Kim, Young Hwan Cho, Yong Joon Park, Yeong-Keong Ha
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Publication number: 20140168497Abstract: There are provided a camera module driver and a camera module including the same. The camera module driver includes: a driving unit driving a lens; and a memory unit storing an operation setting value of the driving unit, wherein the driving unit includes a register sensing application of power to perform a reset operation of changing arbitrarily distributed data into preset default data, and the driving unit and the memory unit are formed in a single integrated circuit.Type: ApplicationFiled: November 15, 2013Publication date: June 19, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hoon Heo, Yong Joon Park, Jung Wook Hwang
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Publication number: 20140104710Abstract: A camera module including a housing; a lens barrel having a lens and reciprocating in the housing; a magnetic member coupled with the lens barrel; an electromagnetic member coupled with the housing and generating a magnetic field so that the lens barrel moves along an optical axis; and a Hall sensor in the housing and detecting a change in magnetic field according to a position of the magnetic member before electric power is outputted to the electromagnetic member. A control unit sets a current position of the magnetic member as a first target position, setting an initial position for driving auto focusing as a second target position, aligning the lens barrel to the first target position by controlling electric power supplied to the electromagnetic member, and then moving the lens barrel to the second target position by supplying electric power to the electromagnetic member.Type: ApplicationFiled: October 7, 2013Publication date: April 17, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hoon HEO, Yong-Joon PARK, Jung-Wook HWANG
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Publication number: 20140098434Abstract: There is provided a lens actuator, including: a lens barrel in which at least one lens is provided on an optical axis; a magnetic part provided on one surface of the lens barrel; and a printed circuit board in which a coil pattern part generating electromagnetic force is provided, the printed circuit board having one surface facing the magnetic part, wherein magnetic material is provided on the other surface of the printed circuit board.Type: ApplicationFiled: August 28, 2013Publication date: April 10, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jae Ho Baik, Hoon Heo, Jung Seok Lee, Jae Hyuk Lee, Yong Joon Park, Jung Wook Hwang
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Patent number: 8670951Abstract: The present invention relates to an electronic scale having an air pressure change compensation function, which can precisely measure the weight of an object to be weighed even in an environment in which air pressure changes moment by moment in an airtight space such as in a glove box. According to the present invention, there is provided an electronic scale having an internal air pressure measurement sensor, by which the function of correcting the weight of an object to be weighed is provided even in an environment in which air pressure changes such as in the glove box is provided, thus enabling the weight of a sample to be precisely measured even in an environment in which air pressure changes moment by moment.Type: GrantFiled: September 8, 2011Date of Patent: March 11, 2014Assignees: Korea Atomic Energy Research Institute, Korea Hydro and Nuclear Power Co., LtdInventors: Jei-Won Yeon, Kyuseok Song, Sang Eun Bae, Jong-Yun Kim, Hong-Joo Ahn, Yong Joon Park
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Publication number: 20140009089Abstract: There are provided an apparatus and a method for driving a voice coil motor (VCM), the apparatus including an instruction signal generating unit generating an instruction signal according to a digital signal generated from an input signal, and a driving unit driving the voice coil motor (VCM) by selecting a path for a driving current applied to the voice coil motor (VCM) according to the digital signal and controlling a duty of the driving current according to the instruction signal.Type: ApplicationFiled: May 13, 2013Publication date: January 9, 2014Applicants: WITHUSVISION Co., Ltd., SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Won Seob OH, Je Hyun Park, Oh Byoung Kwon, Kyoung Won Hyun, Jung Wook Hwang, Hoon Heo, Hong Soo Jung, Yong Joon Park
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Publication number: 20130321937Abstract: Disclosed herein is a camera module in which a movement of a magnet is controlled by only magnetic force between the magnet and a yoke without a spring for controlling the movement of the magnet which operates up and down. The camera module includes: a lens module; and a main frame supporting the lens module and allowing the lens module to be driven in an optical axis direction, wherein the lens module includes: a lens assembly including a plurality of lenses; and a magnet fixed to one side of the lens module, and the main frame includes: a coil facing the magnet, fixed to one side within the main frame, and generating an electric field as power is applied thereto; and a yoke disposed to face the magnet with the main frame and the coil interposed therebetween and controlling driving of the lens module by attraction with the magnet.Type: ApplicationFiled: March 13, 2013Publication date: December 5, 2013Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Jae Ho BAIK, Won Seob OH, Hoon HEO, Jung Seok LEE, Jae Hyuk LEE, Yong Joon PARK, Jung Wook HWANG
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Patent number: 8493561Abstract: A device for on-site measurement of concentration of uranium in high temperature molten salts is provided. More particularly, this device can be directly applied to a pyroprocess for reusing spent nuclear fuel and determine concentration of uranium 3+ and 4+ chemical species using ultraviolet-visible light absorption spectrometry. The device includes first and second optical waveguides submerged in molten salts including uranium through a port formed at an upper side of a pyrochemical process apparatus; a lengthwise driver installed at the port to be operated to adjust a distance between the optical waveguides; a light source for supplying light to the second optical waveguide as any one of the optical waveguides; and a spectrometer connected to the first optical waveguide as the other one of the optical waveguides to analyze the light emitted from the second optical waveguide and introduced through the first optical waveguide via the molten salts.Type: GrantFiled: December 23, 2010Date of Patent: July 23, 2013Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd.Inventors: Yong Joon Park, Sang Eun Bae, Young-Hwan Cho, Kyuseok Song
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Publication number: 20120123721Abstract: The present invention relates to an electronic scale having an air pressure change compensation function, which can precisely measure the weight of an object to be weighed even in an environment in which air pressure changes moment by moment in an airtight space such as in a glove box. According to the present invention, there is provided an electronic scale having an internal air pressure measurement sensor, by which the function of correcting the weight of an object to be weighed is provided even in an environment in which air pressure changes such as in the glove box is provided, thus enabling the weight of a sample to be precisely measured even in an environment in which air pressure changes moment by moment.Type: ApplicationFiled: September 8, 2011Publication date: May 17, 2012Applicants: KOREA HYDRO AND NUCLEAR POWER CO., LTD, KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventors: Jei-Won YEON, Kyuseok SONG, Sang Eun BAE, Jong-Yun KIM, Hong-Joo AHN, Yong Joon PARK
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Publication number: 20120026495Abstract: A device for on-site measurement of concentration of uranium in high temperature molten salts is provided. More particularly, to a device for on-site measurement of concentration of uranium in high temperature molten salts that can be directly applied to a pyroprocess for reusing spent nuclear fuel and determine concentration of uranium 3+ and 4+ chemical species using ultraviolet-visible light absorption spectrometry.Type: ApplicationFiled: December 23, 2010Publication date: February 2, 2012Applicants: KOREA HYDRO & NUCLEAR POWER CO., LTD., KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventors: Yong Joon Park, Sang Eun Bae, Young-Hwan Cho, Kyuseok Song
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Patent number: 8057772Abstract: Disclosed are mesoporous silica particles and a preparation method thereof, particularly, a method of preparing mesoporous silica particles, including mixing a silica precursor, an alkylamine-based surfactant, and a phosphoric acid-based cosurfactant, thus preparing a mixture solution (a mother liquor); adding or not adding the mixture solution with an acid solution, and conducting stirring, thus providing mesoporous silica particles; and thermally treating the mesoporous silica particles. These mesoporous silica particles are prepared using a phosphoric acid-based cosurfactant for stabilizing the surface of the particles to prevent the aggregation thereof, thereby uniformly distributing the particles.Type: GrantFiled: October 23, 2007Date of Patent: November 15, 2011Assignee: Korea Atomic Energy Research InstituteInventors: Jong-Yun Kim, Suk Bon Yoon, Yong-Joon Park, Myung Ho Lee, Kwang-Yong Jee
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Publication number: 20080286187Abstract: Disclosed are mesoporous silica particles and a preparation method thereof, particularly, a method of preparing mesoporous silica particles, including mixing a silica precursor, an alkylamine-based surfactant, and a phosphoric acid-based cosurfactant, thus preparing a mixture solution (a mother liquor); adding or not adding the mixture solution with an acid solution, and conducting stirring, thus providing mesoporous silica particles; and thermally treating the mesoporous silica particles. These mesoporous silica particles are prepared using a phosphoric acid-based cosurfactant for stabilizing the surface of the particles to prevent the aggregation thereof, thereby uniformly distributing the particles.Type: ApplicationFiled: October 23, 2007Publication date: November 20, 2008Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventors: Jong-Yun KIM, Suk Bon YOON, Yong-Joon PARK, Myung Ho LEE, Kwang-Yong JEE
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Patent number: 7427455Abstract: There are provided an anode for a lithium metal polymer secondary battery comprising an anodic current collector having a surface on which a plurality of recesses having a predetermined shape are formed and a method of preparing the same. The plurality of recesses are formed on a surface of the anodic current collector using a physical method or a chemical method. In a lithium metal polymer secondary battery employing the anode, oxidation/reduction of lithium and the formation of dendrite occur only in the recesses formed by surface patterning of the anodic current collector. Thus, expanding and shrinking of a battery due to a change in the thickness of the lithium anode can be prevented and cycling stability and the lifespan of a battery can be improved.Type: GrantFiled: September 19, 2005Date of Patent: September 23, 2008Assignee: Electronics and Telecommunications Research InstituteInventors: Young Gi Lee, Yong Sik Hong, Yong Joon Park, Kwang Sun Ryu
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Patent number: 7157072Abstract: Provided is a cathode composition for lithium secondary battery that includes a lithium-chromium-titanium-manganese oxide that has the formula Li[Li(1-x)/3CrxTi(2/3)yMn2(1-x-y)/3]O2 where 0?x?0.3, 0?y?0.3 and 0.1?x+y?0.3, and layered a-LiFeO2 structure. A method of synthesizing the lithium-chromium-titanium manganese oxide includes preparing a first mixed solution by dispersing titanium dioxide (TiO2) in a mixed solution of chrome acetate (Cr3(OH)2(CH3CO2)7) and manganese acetate ((CH3CO2)2Mn.4H2O), adding a lithium hydroxide (LiOH) solution to the first mixed solution to obtain homogeneous precipitates, forming precursor powder that has the formula Li[Li(1-x)/3CrxTi(2/3)yMn2(1-x-y)/3]O2 where 0?x?0.3, 0?y?0.3 and 0.1?x+y?0.3 by heating the homogeneous precipitates, and heating the precursor powder to form oxide powder having a layered structure.Type: GrantFiled: July 6, 2004Date of Patent: January 2, 2007Assignee: Electronics and Telecommunications Research InstituteInventors: Xianglan Wu, Yong Joon Park, Kwang Sun Ryu, Soon Ho Chang
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Patent number: 7008608Abstract: Provided is a lithium-cobalt-manganese oxide having the formula Li[CoxLi(1/3?x/3)Mn(2/3?2x/3)]O2(0.05<X<0.9) which provide a stable structure and a superior discharge capacity, and the method of synthesizing of the same. The method of synthesizing the oxides according to the present invention comprises: preparing an aqueous solution of lithium salt, cobalt salt, and manganese salt; forming a gel by burning the aqueous solution; making oxide powder by burning the gel; forming a fine oxide powder having a layered structure by the twice of treatments. The lithium-cobalt-manganese oxide synthesized according to the present invention has a stable and superior electrochemical characteristic. The oxide is synthesized by simple and low cost heat treatment process.Type: GrantFiled: December 17, 2003Date of Patent: March 7, 2006Assignee: Electronics and Telecommunications Research InstituteInventors: Yong Joon Park, Young Sik Hong, Xianglan Wu, Kwang Man Kim, Young Gi Lee, Kwang Sun Ryu, Soon Ho Chang
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Patent number: 6986968Abstract: A cathode active material for a lithium secondary cell used in a cellular phone is disclosed. The cathode active material for the lithium secondary cell and the method the same having a high capacity and a long lifetime, different from LiCoO2 and LiMn2O4, Li(Ni, Co)O2, and V-system oxide that has been researched as the active material for substituting LiCoO2 are provided. The cathode active material for the lithium secondary cell in the next formula 1 is obtained by heating or chemically treating diadochite [Fe2(PO4)(SO4)(OH).6H2O] that is the mineral containing PO43?, SO42?, and OH?. LiaFebMc(PO4)x(SO4)y(OH)z ??(1) In the formula, M is at least one element selected from a radical consisting of Mg, Ti, Cr, Mn, Co, Ni, Cu, Zn, Al, and Si, with 0?a, c?0.5, 1?b?2, 0.5?x, y, z?1.5.Type: GrantFiled: December 20, 2002Date of Patent: January 17, 2006Assignee: Electronics and Telecommunications Research InstituteInventors: Young Sik Hong, Kwang Sun Ryu, Soon Ho Chang, Yong Joon Park, Young Gi Lee, Kwang Man Kim, Nam Gyu Park, Man Gu Kang, Xiang Lan Wu