Patents by Inventor Young Sohn

Young Sohn 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: 20160193174
    Abstract: The present invention relates to a pharmaceutical composition, functional health food composition, quasi-drug composition, and cosmetic composition containing a monoacetyldiacylglycerol compound as an active ingredient for preventing, treating or improving atopic dermatitis. The monoacetyldiacylglycerol compound of the present invention has an excellent effect of suppression of IL-4 and IgE secretion, thereby overcoming side effects of an atopic dermatitis treatment agent currently in use, having no toxicity, and exhibiting an excellent treatment effect, and thus can be useful as a composition for preventing, treating, and ameliorating atopic dermatitis.
    Type: Application
    Filed: September 3, 2014
    Publication date: July 7, 2016
    Inventors: Jae Wha KIM, Sei-Ryang OH, Kyung Seop AHN, Ho Bum KANG, Jae Mine YOO, Tae-Suk LEE, JongKoo KANG, Hye Kyung KIM, Jin Soo YOOK, Yong-Hae HAN, Ki Young SOHN
  • Publication number: 20160166528
    Abstract: The invention relates to pharmaceutical compositions, as well as health functional food compositions and quasi-drug compositions, for preventing, treating, or improving rheumatoid arthritis, comprising a monoacetyldiacylglycerol compound as an active ingredient. The monoacetyldiacylglycerol of the invention is effective in inhibiting the phosphorylation of STAT-3 known to be a therapeutic target for rheumatoid arthritis. As the monoacetyldiacylglycerol is an effective therapeutic agent without toxicity, the monoacetyldiacylglycerol can overcome the side effects of the medicines currently used in the treatment of rheumatoid arthritis. Thus, the monoacetyldiacylglycerol can be used for preventing, treating or improving rheumatoid arthritis.
    Type: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Inventors: Jae Wha KIM, Sei Ryang OH, Kyung Seop AHN, Ho Bum KANG, Beom Su PARK, Tae Suk LEE, Jong Koo KANG, Young Sik JUNG, Yong-Hae HAN, Ki-Young SOHN
  • Publication number: 20160151323
    Abstract: The disclosure provides methods for treating, controlling or mitigating leukopenia (e.g. neutropenia) and/or thrombocytopenia, for example in the context of cancer chemotherapy, comprising administration of a monoacetyl-diacyl-glycerol compound, as well as compositions useful therefor.
    Type: Application
    Filed: November 24, 2015
    Publication date: June 2, 2016
    Inventors: Yong-Hae HAN, Saeho CHONG, Ki-Young SOHN, Myung-Hwan KIM, Jae Wha KIM
  • Publication number: 20160128966
    Abstract: The disclosure provides methods for treating, controlling or mitigating leukopenia (e.g. neutropenia) and/or thrombocytopenia, for example in the context of cancer chemotherapy, comprising administration of a monoacetyl-diacyl-glycerol compound, as well as compositions useful therefor.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 12, 2016
    Inventors: Yong-Hae HAN, Saeho CHONG, Ki-Young SOHN, Myung-Hwan KIM, Jae Wha KIM
  • Patent number: 9321126
    Abstract: Various embodiments may be used for laser-based modification of target material of a workpiece while advantageously achieving improvements in processing throughput and/or quality. Embodiments of a method of processing may include focusing and directing laser pulses to a region of the workpiece at a pulse width sufficiently short so that material is efficiently removed by nonlinear optical absorption from the region and a quantity of heat affected zone and thermal stress on the material within the region, proximate to the region, or both is reduced relative to a quantity obtainable using a laser with longer pulses. In at least one embodiment, an ultrashort pulse laser system may include at least one of a fiber amplifier or fiber laser. Various embodiments are suitable for at least one of dicing, cutting, scribing, and forming features on or within a composite material.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: April 26, 2016
    Assignee: IMRA America, Inc.
    Inventors: Jingzhou Xu, Jin Young Sohn, Gyu Cheon Cho, Lawrence Shah
  • Publication number: 20160099640
    Abstract: A buck-boost converter includes: a converting circuit; a ripple injector; a hysteresis comparator; and a switching controller. The converting circuit is configured to generate an output voltage by adjusting an input voltage in a buck mode, a boost mode, and a buck-boost mode. The ripple injector is configured to generate a ripple based on switching signals corresponding to switching operations of the converting circuit. The hysteresis comparator outputs at least one switching control signal by comparing an output control voltage with a feedback voltage generated by adding the ripple to a divided voltage generated by performing a voltage division on the output voltage. The switching controller is configured to change a current flow path of the converting circuit based on the at least one switching control signal.
    Type: Application
    Filed: June 17, 2015
    Publication date: April 7, 2016
    Inventors: Min-Soo CHO, Jae-Yeol HAN, Dong-Jin KEUM, Il-Young SOHN, Ryotaro KUDO
  • Patent number: 8810908
    Abstract: The binoculars of the present invention comprise two optical units; one optical unit for each eye. Each optical unit comprises a first reflector element and a second reflector element, wherein at least one of the reflector elements is a micromirror array reflector. The binoculars of the present invention provide focusing and/or zoom functions without or with minimal macroscopic mechanical lens movement.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: August 19, 2014
    Assignees: Stereo Display, Inc., Angstrom, Inc.
    Inventors: Hye Young Kim, Jin Young Sohn, Gyoung Il Cho, Cheong Soo Seo
  • Patent number: 8622557
    Abstract: A Micromirror Array Lens with self-tilted micromirrors comprising a plurality of self-tilted micromirrors and configured to form a designed optical surface profile by self-tilted micromirrors. Each self-tilted micromirror comprises a substrate, at least one stiction plate configured to be attracted to the substrate by adhesion force, a micromirror plate having a reflective surface, coupled to the stiction plate elastically and configured to have a required motion when the stiction plate is attracted to the substrate, and at least one pivot structure disposed between the substrate and the micromirror plate and configured to provide a tilting point or area for the motion of the micromirror plate. The designed optical surface profile determines the required motion of the micromirror plate and a surface profile shape memory is built in the structure of the micro-mechanical elements of the self-tilted micromirrors so that each micromirror plate has the required motion.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: January 7, 2014
    Assignees: Stereo Display, Inc., Angstrom Inc.
    Inventors: Gyoung Il Cho, Jin Young Sohn, Hye Young Kim, Cheong Soo Seo
  • Publication number: 20110240617
    Abstract: Various embodiments may be used for laser-based modification of target material of a workpiece while advantageously achieving improvements in processing throughput and/or quality. Embodiments of a method of processing may include focusing and directing laser pulses to a region of the workpiece at a pulse width sufficiently short so that material is efficiently removed by nonlinear optical absorption from the region and a quantity of heat affected zone and thermal stress on the material within the region, proximate to the region, or both is reduced relative to a quantity obtainable using a laser with longer pulses. In at least one embodiment, an ultrashort pulse laser system may include at least one of a fiber amplifier or fiber laser. Various embodiments are suitable for at least one of dicing, cutting, scribing, and forming features on or within a composite material.
    Type: Application
    Filed: March 1, 2011
    Publication date: October 6, 2011
    Applicant: IMRA AMERICA, INC.
    Inventors: Jingzhou Xu, Jin Young Sohn, Gyu Cheon Cho, Lawrence Shah
  • Patent number: 7777959
    Abstract: The present invention provides a Micromirror Array Lens (MMAL) with fixed focal length to reproduce a designed surface having optical focusing power. The micro mechanical structures with surface profile shape memory are fabricated and released after fabrication. Each micromirror in the MMAL has its own motion by stiction force and/or electrostatic force while and/or after the releasing process. Once the designed surface is formed, the MMAL has an optical power as a lens.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: August 17, 2010
    Assignees: Angstrom, Inc., Stereo Display. Inc.
    Inventors: Jin Young Sohn, Cheong Soo Seo, Gyoung Il Cho
  • Patent number: 7742232
    Abstract: A new three-dimensional imaging system has been needed to overcome the problems of the prior arts using conventional variable focal length lenses, which have slow response time, small focal length variation, and low focusing efficiency, and require a complex mechanism to control it. The three-dimensional imaging system of the present invention uses the variable focal length micromirror array lens. Since the micromirror array lens has many advantages such as very fast response time, large focal length variation, high optical focusing efficiency, large size aperture, low cost, simple mechanism, and so on, the three-dimensional imaging system can get a real-time three-dimensional image with large depth range and high depth resolution.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: June 22, 2010
    Assignees: Angstrom, Inc., Stereo Display, Inc.
    Inventors: Gyoung Il Cho, Hye Young Kim, Jin Young Sohn, Cheong Soo Seo
  • Publication number: 20090303569
    Abstract: A self-tilted micromirror device of the present invention comprises a plurality of micro-structures including a substrate, at least one stiction plate configured to be attracted to the substrate by adhesion force, a top plate coupled to the stiction plate elastically and configured to have at least one motion when the stiction plate is attracted to the substrate, and at least one pivot structure disposed between the substrate and the top plate and configured to provide a tilting point or area for the motion of the top plate. The motion of the top plate is determined by the geometry of the micro-structures of the self-tilted micromirror device.
    Type: Application
    Filed: May 20, 2008
    Publication date: December 10, 2009
    Applicants: Stereo Didplay, Inc., Angstrom, Inc.
    Inventors: Gyoung Il Cho, Jin Young Sohn, Hye Young Kim, Cheong Soo Seo
  • Publication number: 20090290244
    Abstract: A Micromirror Array Lens with self-tilted micromirrors comprising a plurality of self-tilted micromirrors and configured to form a designed optical surface profile by self-tilted micromirrors. Each self-tilted micromirror comprises a substrate, at least one stiction plate configured to be attracted to the substrate by adhesion force, a micromirror plate having a reflective surface, coupled to the stiction plate elastically and configured to have a required motion when the stiction plate is attracted to the substrate, and at least one pivot structure disposed between the substrate and the micromirror plate and configured to provide a tilting point or area for the motion of the micromirror plate. The designed optical surface profile determines the required motion of the micromirror plate and a surface profile shape memory is built in the structure of the micro-mechanical elements of the self-tilted micromirrors so that each micromirror plate has the required motion.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 26, 2009
    Applicants: STEREO DISPLAY, INC., ANGSTROM, INC.
    Inventors: Gyoung Il Cho, Jin Young Sohn, Hye Young Kim, Cheong Soo Seo
  • Patent number: 7619807
    Abstract: A Micromirror Array Lens comprises a plurality of micromirrors arranged on a flat or a curved surface to reflect incident light. Each micromirror in the Micromirror Array Lens is configured to have at least one motion. The Micromirror Array Lens forms at least one optical surface profile reproducing free surfaces by using the motions of the micromirrors. The free surface can be any two or three-dimensional continuous or discrete reflective surface. The Micromirror Array Lens having the corresponding optical surface profile provides optical focusing properties substantially identical to those of the free surface. The Micromirror Array Lens can forms various optical elements such as a variable focal length lens, a fixed focal length lens, an array of optical switches, a beam steerer, a zone plate, a shutter, an iris, a multiple focal length lens, other multi-function optical elements, and so on.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 17, 2009
    Assignees: Angstrom, Inc., Stereo Display, Inc.
    Inventors: Sang Hyune Baek, Jin Young Sohn, Gyoung Il Cho, Cheong Soo Seo
  • Patent number: 7605964
    Abstract: The present invention discloses an array of micromirrors with non-fixed underlying structures which can be oriented to have principal rotational axis with no structural and mechanical interference and with no electrical conflict. The micromirror array in the present invention can reproduce various surfaces including spherical, aspherical (e.g. parabolic, hyperbolic, elliptical, etc.), anamorphic, other than rotational symmetric profiles. With the newly introduced non-fixed underlying structure, the present invention makes possible for a micromirror array to generate a desired optical surface profile by simple motion controls and to improve structural stability, simplicity, flexibility, and efficiency in motion and motion control.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: October 20, 2009
    Assignees: Angstrom, Inc., Stereo Display, Inc.
    Inventors: Dong Woo Gim, Jin Young Sohn, Gyoung Il Cho, Cheong Soo Seo
  • Patent number: 7605989
    Abstract: A compact auto-focus image taking lens system with a Micromirror Array Lens and a lens-surfaced prism of the present invention comprises a lens-surfaced prism, an aperture stop, a first lens element, a second lens element, a Micromirror Array Lens, and an image surface, optionally an infrared cut-off filter. By introducing a Micromirror Array Lens and a lens-surfaced prism, the compact auto-focus image taking lens system with a Micromirror Array Lens and a lens-surfaced prism of the present invention has many advantages over the prior arts in the field of invention, such as compactness in thickness, small number of optical elements, high performance of optical quality, fast focusing speed, low power consumption, enough space for optional elements such as an infrared cut-off filter and diversity in optical geometries.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: October 20, 2009
    Assignees: Angstrom, Inc., Stereo Display, Inc.
    Inventors: Jin Young Sohn, Gyoung II Cho, Cheong Soo Seo
  • Patent number: 7605988
    Abstract: A compact image taking lens system with a lens-surfaced prism of the present invention comprises a prism, an aperture stop, a first lens element, a second lens element, reflecting mirror surface, and image surface, optionally an infrared cut-off filter. By introducing a lens-surfaced prism, the compact image taking lens system with a lens-surfaced prism of the present invention has many advantages over the prior arts in the field of invention, such as compactness in thickness, small number of optical elements, high performance of optical quality, enough space for optional elements such as an infrared cut-off filter and diversity in optical geometries.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: October 20, 2009
    Assignees: Angstrom, Inc., Stereo Display, Inc.
    Inventors: Jin Young Sohn, Gyoung Il Cho, Cheong Soo Seo
  • Publication number: 20090237783
    Abstract: The binoculars of the present invention comprise two optical units; one optical unit for each eye. Each optical unit comprises a first reflective lens element and a second reflective lens element, wherein at least one of the reflective lens elements is a Micromirror Array Lens. The binoculars of the present invention provide focusing and/or zoom functions without or with minimal macroscopic mechanical lens movement.
    Type: Application
    Filed: March 18, 2008
    Publication date: September 24, 2009
    Applicants: STEREO DISPLAY, INC., ANGSTROM, INC.
    Inventors: Hye Young Kim, Jin Young Sohn, Gyoung Il Cho, Cheong Soo Seo
  • Patent number: 7589884
    Abstract: The present invention provides a micromirror array device specially Micromirror Array Lens device structure and method for making the same. By introducing a sub coating layer and an over coating layer with a high reflective metal layer, the reflective layer of the micromirrors is protected from environmental circumstances, oxidation, degradation, acid, base, and galvanic corrosion of the micro-mechanical structures. Also the new coating structure enhances the performance of the Micromirror Array Lens by reducing degradation of the reflectivity of the metal layer, by providing anti-reflection in the optically non-effective area, and by protecting the micro-mechanical structures.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: September 15, 2009
    Assignees: Angstrom, Inc., Stereo Display, Inc.
    Inventors: Jin Young Sohn, Gyoung Il Cho, Cheong Soo Seo
  • Patent number: 7589885
    Abstract: The present invention provides an optical micromirror device and their array device and method for making the same. By introducing a sub coating layer and an over coating layer with a high reflective metal layer, the reflective layer of the micromirrors is protected from environmental circumstances, oxidation, degradation, acid, base, and galvanic corrosion of the micro-mechanical structures. Also the new coating structure enhances the performance of the micromirror array device by reducing degradation of the reflectivity of the metal layer, by providing anti-reflection in the optically non-effective area, and by protecting the micro-mechanical structures.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: September 15, 2009
    Assignees: Angstrom, Inc., Stereo Display, Inc.
    Inventors: Jin Young Sohn, Gyoung Il Cho, Cheong Soo Seo