Patents by Inventor Chang-Soon Lee

Chang-Soon Lee 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: 20240160603
    Abstract: Provided is a data input/output (I/O) method using a storage node-based key-value store in a storage disaggregation environment. The data I/O method using the storage node-based key-value store includes receiving a command converted from a key-value write request of an application from a calculation node according to a communication protocol used in the storage node, converting the command into an I/O request using a key included in the command, the I/O request including a logical block address and a value corresponding to the key, and storing the value in a storage device of the storage node using the logical block address of the I/O request.
    Type: Application
    Filed: September 19, 2022
    Publication date: May 16, 2024
    Inventors: Sung-Soon PARK, Kyeung Pyo KIM, Young Jae KIM, Yeo Hyeon PARK, Chang Gyu LEE
  • Publication number: 20240144893
    Abstract: A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Inventors: JAE-HOON LEE, SEUNG-HWAN MOON, YONG-SOON LEE, YOUNG-SU KIM, CHANG-HO LEE, WHEE-WON LEE, JUN-YONG SONG, YU-HAN BAE
  • Publication number: 20240118466
    Abstract: A color control member includes a light control layer including quantum dots, a color filter layer disposed on the light control layer, and a low refractive layer disposed between the color filter layer and the light control layer. The low refractive layer includes a base resin, a plurality of non-hollow inorganic particles dispersed in the base resin and of which inner portions are filled. A weight percent of the base resin is in a range of about 40 wt % to about 45 wt % with respect to a total weight of the low refractive layer, and a weight percent of the non-hollow inorganic particles is in a range of about 40 wt % to about 45 wt % with respect to the total weight of the low refractive layer. The color control member including the low refractive layer has excellent reliability.
    Type: Application
    Filed: June 29, 2023
    Publication date: April 11, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: CHANSU KIM, INOK KIM, KEUNCHAN OH, GAK SEOK LEE, SANGHUN LEE, SOYUN LEE, JIEUN JANG, CHANG-SOON JANG
  • Publication number: 20240105604
    Abstract: A three-dimensional (3D) semiconductor device includes a stack structure including first and second stacks stacked on a substrate. Each of the first and second stacks includes a first electrode and a second electrode on the first electrode. A sidewall of the second electrode of the first stack is horizontally spaced apart from a sidewall of the second electrode of the second stack by a first distance. A sidewall of the first electrode is horizontally spaced apart from the sidewall of the second electrode by a second distance in each of the first and second stacks. The second distance is smaller than a half of the first distance.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 28, 2024
    Inventors: Sung-Hun Lee, Seokjung Yun, Chang-Sup Lee, Seong Soon Cho, Jeehoon Han
  • Patent number: 11943987
    Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gak Seok Lee, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Ji Eun Jang, Chang Soon Jang, Sun Kyu Joo, Ha Lim Ji
  • Patent number: 11930684
    Abstract: Provided is a display device. The display device includes a first base portion, a second base portion facing the first base portion, a light emitting layer disposed on one surface of the first base portion and emitting first light, a first wavelength conversion pattern disposed on the light emitting layer and converting the first light into second light having a different wavelength from the first light, a first color filter overlapping the first wavelength conversion pattern on one surface of the second base portion and spaced apart from the first wavelength conversion pattern, and an air layer interposed between the first wavelength conversion pattern and the first color filter.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: March 12, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Soon Jang, Keun Chan Oh, Gak Seok Lee, Sang Hun Lee, So Yun Lee, Ji Eun Jang
  • Patent number: 11917883
    Abstract: A color control member includes a color control layer including a quantum dot and a color filter layer on the color control layer, wherein a low refractive layer may be between the color control layer and the color filter layer. The low refractive layer includes a base resin and a plurality of sets of hollow particles dispersed in the base resin, and each of the hollow particles of each set of the sets of hollow particles may have a spherical shape. The sets of hollow particles may have respective average diameters, and a ratio of two average diameters of the respective average diameters of the sets of hollow particles is about 2:1 to about 60:1, and the low refractive layer including the hollow particles may be formed through a continuous process at a low temperature.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: February 27, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youyoung Jin, Keunchan Oh, Gak Seok Lee, Sanghun Lee, Chang-Soon Jang
  • Patent number: 11759490
    Abstract: A method for production of red ginseng hydrolysis concentrate according to an embodiment of the present disclosure includes carrying out an enzyme reaction of red ginseng concentrate by adding an enzyme solution followed by addition of alcohol to prepare a mixture solution of red ginseng and alcohol, and centrifuging the prepared mixture solution of red ginseng and alcohol followed by concentration under reduced pressure of a supernatant separated by the centrifuge, and a red ginseng hydrolysis concentrate produced by the aforementioned process.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: September 19, 2023
    Assignee: DAEDONG KOREA GINSENG CO., LTD
    Inventors: Sung-Keun Choi, Chang-Soon Lee, Sung Soo Jang, Byeong-Seon Jeon, Kun Hee Lee, Hye Jeong Jeon, Da Young Kim, Hye Won Kim, Han-Min Kim, Byoung Man Kong
  • Publication number: 20230255244
    Abstract: A method for producing black ginseng concentrate is characterized by including steps of adding red ginseng to a continuous steaming-dryer followed by steaming, cooling, and drying to prepare black ginseng, carrying out extraction by adding alcohol to crushed black ginseng obtained by crushing the black ginseng prepared above followed by filtration to prepare black ginseng extract, and concentrating the black ginseng extract prepared above by using a plate type evaporative concentrator followed by heat treatment, and the present invention also relates to black ginseng concentrate prepared by the aforementioned method.
    Type: Application
    Filed: July 20, 2022
    Publication date: August 17, 2023
    Inventors: Sung-Keun CHOI, Sung Soo JANG, Chang-Soon LEE, Byeong-Seon JEON, Kun Hee LEE, Kyung Su LEE, Han Sol LEE, Hye Jeong JEON, Byoung Man KONG
  • Publication number: 20220378862
    Abstract: A method for production of red ginseng hydrolysis concentrate according to an embodiment of the present disclosure includes carrying out an enzyme reaction of red ginseng concentrate by adding an enzyme solution followed by addition of alcohol to prepare a mixture solution of red ginseng and alcohol, and centrifuging the prepared mixture solution of red ginseng and alcohol followed by concentration under reduced pressure of a supernatant separated by the centrifuge, and a red ginseng hydrolysis concentrate produced by the aforementioned process.
    Type: Application
    Filed: March 14, 2022
    Publication date: December 1, 2022
    Inventors: Sung-Keun CHOI, Chang-Soon LEE, Sung Soo JANG, Byeong-Seon JEON, Kun Hee LEE, Hye Jeong JEON, Da Young KIM, Hye Won KIM, Han-Min KIM, Byoung Man KONG
  • Publication number: 20190307243
    Abstract: The present invention relates to a folding table and is intended to improve the ease of use of the table by enabling the folding and unfolding operation of the support legs to be performed more quickly and easily. In order to realize this, the present invention provides a folding table in which the support legs 20 are foldably formed on both side bottom surfaces of the tabletop plate 10, and a support member 30 for supporting the unfolded state is connected to the support legs 20. A guide panel 40 for guiding the movement of the support member 30 is fixed to the bottom surface of the tabletop plate 10 and guide grooves 41 are formed on both side walls of the guide panel 40. A guide rod 31, which is guided along the guide grooves 41, is integrally formed at one end of the support member 30. A rotary plate 50 is rotatably connected to the guide panel 40 by a hinge 52 formed at one end thereof, and the rotary plate 50 has an engaging jaw 51 so that the guide rod 31 can be hooked thereto.
    Type: Application
    Filed: February 25, 2019
    Publication date: October 10, 2019
    Inventor: Chang Soon Lee
  • Publication number: 20140377698
    Abstract: This disclosure relates to a polymerized toner prepared by suspension polymerization. Particularly, this disclosure relates to a polymerized toner that further comprises a specific functional macro monomer, a polymer thereof, or a mixture thereof, in addition to a binder resin, and a pigment, a pigment stabilizer, a charge control agent and wax, which are dispersed in the binder resin, and thus can be fixed at low temperature in a development process, and exhibit high glossiness and excellent transfer efficiency.
    Type: Application
    Filed: December 4, 2012
    Publication date: December 25, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Wook Jang, Chang-Soon Lee, Woo-Cheul Jung, Jung Woo Kim
  • Publication number: 20140370433
    Abstract: This disclosure relates to a polymerized toner prepared by suspension polymerization. Particularly, this disclosure relates to a polymerized toner that comprises a binder resin, and a pigment, a charge control agent, and wax, which are dispersed in the binder resin, and maintains peak molecular weight (Mn) of the binder resin, the ratio of number average molecular weight/peak molecular weight (Mn/Mp), and gel content (Gel %), and thereby, can realize high glossiness and excellent off set property when printing, and a method for preparing the same.
    Type: Application
    Filed: December 5, 2012
    Publication date: December 18, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Wook Jang, Chang-Soon Lee, Joo-Yong Park, Woo-Cheul Jung
  • Patent number: 8808958
    Abstract: The present invention relates to a process for preparing a polymerized toner, and in particular to a process for preparing a polymerized toner and a polymerized toner prepared therefrom, wherein a certain block copolymer and copper phthalocyanine are used within a predetermined range of the amounts for a carbon black dispersant during a suspension polymerization, thereby making it possible to realize a narrow particle sizes distribution, high transcription efficiency, and an enhanced image concentration.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: August 19, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Wook Jang, Chang-Soon Lee, Dong-Jin Park, Jung-Woo Kim
  • Patent number: 8552082
    Abstract: A novel alkali-soluble polymer compound including a dehydrogenated pimaric acid and/or its isomer as a repeating unit, and a photosensitive resin composition including the alkali-soluble polymer compound as an effective binder matrix are provided. A photosensitive resin composition using the alkali-soluble polymer compound including a dehydrogenated resin acid has excellent photosensitivity and developing characteristics cause a less deformation in a firing process, has excellent elasticity. Thus, the photosensitive resin composition is advantageous for curing various transparent photosensitive materials, in particular, materials of column spacers, an overcoat, a passivation layer, or the like, used for fabricating color filters of an LCD.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: October 8, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Keon Woo Lee, Sang Kyu Kwak, Chang Soon Lee, Hye Hyeon Kim
  • Patent number: 8530127
    Abstract: A process for preparing toner and a polymerized toner prepared thereby are provided. The process for preparing toner comprises: forming an aqueous dispersion medium comprising calcium phosphate; forming a monomer mixture of a polymer charge control agent having weight average molecular weight of about 10,000 to 20,000, pigment, and a monomer for a binder resin; dispersing the monomer mixture in the aqueous dispersion in the form of droplets; and suspension-polymerizing the monomer mixture dispersed in the form of droplets, wherein about 2 to 6 parts by weight of the calcium phosphate and about 0.6 to 10 parts by weight of the charge control agent are used, on the basis of 100 parts by weight of the monomer mixture.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: September 10, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Wook Jang, Chang-Soon Lee
  • Patent number: 8530128
    Abstract: The present invention relates to a polymerized toner including a low molecular weight polymer having a weight average molecular weight of 3000 to 30,000 and a method for preparing the same, wherein the polymerized toner can realize excellent gloss and offset feature and can also can exhibit excellent performance in the applications of high speed copying, development of transferred photos, etc.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: September 10, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Wook Jang, Chang-Soon Lee
  • Patent number: 8409782
    Abstract: A photoresist composition is provided. The photoresist composition comprises two or more kinds of photoinitiators having different activation wavelengths whose difference is at least 20 nm. The photoresist composition has high sensitivity and forms a pattern whose thickness is easy to control depending on the exposure intensity through a slit or transflective mask. Further provided are a transparent thin film formed using the photoresist composition and a liquid crystal display device comprising the thin film.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: April 2, 2013
    Assignee: LG Chem, Ltd
    Inventors: Keon Woo Lee, Sung Hyun Kim, Sang Kyu Kwak, Dong Kung Oh, Chang Soon Lee, Chang Ho Cho, Kyoung Hoon Min
  • Patent number: 8394564
    Abstract: A polymerized toner is provided. The polymerized toner has cores containing polyvinylidene fluoride particles. The polyvinylidene fluoride particles have an average particle diameter of 1.1 to 1.5 ?m and a melting temperature (Tm) of 140 to 160° C. The polyvinylidene fluoride particles are distributed at a higher concentration near the surface of the cores. This distribution improves the affinity of the cores for silica as an external additive to achieve an increased amount of surface charge and improved transfer efficiency of the polymerized toner. Further provided is a method of producing the polymerized toner.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: March 12, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Wook Jang, Chang Soon Lee
  • Publication number: 20130059245
    Abstract: The present invention relates to a polymerized toner and a method for preparing the same, wherein the toner can realize an excellent offset feature, high transfer efficiency, and a uniform image and thus can exhibit excellent performances in the applications of high speed copying, development of transferred photos, etc.
    Type: Application
    Filed: February 22, 2011
    Publication date: March 7, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Wook Jang, Hak-Soo Kim, Chang-Soon Lee