Patents by Inventor Bum-Jin Chang

Bum-Jin Chang 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: 20210038845
    Abstract: Provided is an intubation assembly enabling whether or not a patient is breathing to be determined. The intubation assembly includes an intubation tube and a detector connected to a portion of the intubation tube in an air communicating manner. The detector includes a housing having a transparent window and a movable body disposed within the housing to be movable in response to a flow of air caused by breathing of a patient. The detector attached to a related-art intubation tube enables a doctor or an emergency medical technician to visually or sonically determine whether or not a patient is breathing.
    Type: Application
    Filed: July 22, 2020
    Publication date: February 11, 2021
    Inventors: Si On JO, Yuna SEO, Si Hyung JO, Bum Jin CHANG
  • Patent number: 10038174
    Abstract: A separator including a porous base material layer and a coating layer disposed on at least one surface of the porous base material layer, wherein the coating layer includes the binder composition, and a binder film comprising the binder composition has an elongation of 10% or less measured after maintaining the binder film under a load of 50 g at 150° C. for 10 minutes, and a lithium battery including the same.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: July 31, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Beom-Wook Lee, Bum-Jin Chang, Myung-Seop Kim, Hye-Sun Jeong, Sam-Jin Park, Jung-Ock Yeou, Kwi-Seok Choi
  • Patent number: 9911979
    Abstract: A binder for a battery including polymethyl methacrylate particles and a binder polymer is disclosed. Additionally, a binder composition, and an anode and a lithium battery which include the binder are also disclosed.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: March 6, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jun-Kyu Cha, Beom-Wook Lee, Bum-Jin Chang, Myoung-Sun Kim
  • Patent number: 9761879
    Abstract: A binder for a battery including polyurethane particles and a binder polymer is disclosed. Additionally, a binder composition, and an anode and a lithium battery which include the binder are also disclosed.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: September 12, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jun-Kyu Cha, Beom-Wook Lee, Bum-Jin Chang, Myoung-Sun Kim
  • Patent number: 9570750
    Abstract: An anode including; an anode active material; and a porous binder including a nanopore, wherein an anode mixture density is about 1.5 g/cc or greater, a lithium battery including the anode and a binder composition. A method of manufacturing the anode material using a polymer that is thermally decomposed in a vacuum at about 200° C. or higher for about 1 hour.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: February 14, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Beom-Wook Lee, Bum-Jin Chang, Hye-Sun Jeong
  • Patent number: 9318744
    Abstract: A polymer includes a first repeating unit having a cationic group and a second repeating unit having an anionic group. The polymer may further include a third repeating unit having a non-ionic group. The polymer may include first and second polymers, each of which includes a first repeating having a cationic group and a second repeating unit having an anionic group. The cationic group of the first polymer may form an intermolecular bond with the anionic group of the second polymer, and the anionic group of the first polymer may form an intermolecular bond with the cationic group of the second polymer. An electrode for a lithium secondary battery includes the polymer, and a lithium secondary battery employs the electrode.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: April 19, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Beom-Wook Lee, Bum-Jin Chang, Hye-Sun Jeong, Sam-Jin Park, Kwan-Ku Lee
  • Patent number: 9287563
    Abstract: An electrode for a lithium secondary battery includes an electrode active material, a conductive agent, and a polyurethane-based compound, and has pores having an average diameter of about 2 to about 20 nm. A lithium secondary battery includes the electrode.
    Type: Grant
    Filed: September 24, 2011
    Date of Patent: March 15, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chae-Woong Cho, Woon-Suk Jang, Bum-Jin Chang, Ki-Jun Kim, Kwi-Seok Choi, Maeng-Eun Lee
  • Patent number: 9203076
    Abstract: An electrode for a lithium secondary battery, the electrode including: an electrode active material; and a composite including a clay and a polymer intercalated between layers of the clay, a method of manufacturing the electrode, and a lithium secondary battery including the electrode.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Bum-Jin Chang, Woon-Suk Jang, Chae-Woong Cho, Seung-Hun Han, Ki-Jun Kim, Kwi-Seok Choi
  • Patent number: 8945433
    Abstract: A conductive agent having a nonzero surface charge, a positive electrode slurry composition of a lithium secondary battery, including the conductive agent, and a lithium secondary battery including the conductive agent.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: February 3, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chae-Woong Cho, Woon-Suk Jang, Bum-Jin Chang, Ki-Jun Kim, Kwi-Seok Choi
  • Patent number: 8877379
    Abstract: Disclosed is a positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive active material includes a carbon material having a structure with “n” polycyclic nano sheets, wherein “n” is an integer of 1 to 30 with hexagonal rings having six carbon atoms condensed and substantially aligned in a plane, the polycyclic nano sheets are laminated in a vertical direction to the plane; and a lithium-containing olivine-based compound attached to the surface of the carbon material is formed with a carbon-coating layer on its surface.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 4, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Woon-Suk Jang, Chae-Woong Cho, Bum-Jin Chang, Ki-Jun Kim, Kwi-Seok Choi
  • Publication number: 20140308565
    Abstract: A separator including a porous base material layer and a coating layer disposed on at least one surface of the porous base material layer, wherein the coating layer includes the binder composition, and a binder film comprising the binder composition has an elongation of 10% or less measured after maintaining the binder film under a load of 50 g at 150° C. for 10 minutes, and a lithium battery including the same.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 16, 2014
    Applicant: Samsung SDI Co, Ltd.
    Inventors: Beom-Wook LEE, Bum-Jin CHANG, Myung-Seop KIM, Hye-Sun JEONG, Sam-Jin PARK, Jung-Ock YEOU, Kwi-Seok CHOI
  • Publication number: 20140231719
    Abstract: A binder for a battery including polymethyl methacrylate particles and a binder polymer is disclosed. Additionally, a binder composition, and an anode and a lithium battery which include the binder are also disclosed.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 21, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jun-Kyu Cha, Beom-Wook Lee, Bum-Jin Chang, Myoung-Sun Kim
  • Publication number: 20140231706
    Abstract: A binder for a battery including polyurethane particles and a binder polymer is disclosed. Additionally, a binder composition, and an anode and a lithium battery which include the binder are also disclosed.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 21, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jun-Kyu Cha, Beom-Wook Lee, Bum-Jin Chang, Myoung-Sun Kim
  • Publication number: 20140106218
    Abstract: A polymer includes a first repeating unit having a cationic group and a second repeating unit having an anionic group. The polymer may further include a third repeating unit having a non-ionic group. The polymer may include first and second polymers, each of which includes a first repeating having a cationic group and a second repeating unit having an anionic group. The cationic group of the first polymer may form an intermolecular bond with the anionic group of the second polymer, and the anionic group of the first polymer may form an intermolecular bond with the cationic group of the second polymer. An electrode for a lithium secondary battery includes the polymer, and a lithium secondary battery employs the electrode.
    Type: Application
    Filed: September 25, 2013
    Publication date: April 17, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Beom-Wook Lee, Bum-Jin Chang, Hye-Sun Jeong, Sam-Jin Park, Kwan-Ku Lee
  • Publication number: 20140093772
    Abstract: An electrode for a lithium secondary battery, the electrode including: an electrode active material; and a composite including a clay and a polymer intercalated between layers of the clay, a method of manufacturing the electrode, and a lithium secondary battery including the electrode.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Bum-Jin CHANG, Woon-Suk JANG, Chae-Woong CHO, Seung-Hun HAN, Ki-Jun KIM, Kwi-Seok CHOI
  • Patent number: 8673496
    Abstract: An electrode composition containing a first conducting agent and a second conducting agent, an electrode for lithium secondary batteries, a method of manufacturing the electrode, and a lithium secondary battery including the electrode. The second conducting agent is an agglomerate formed of a conducting material and a fluorine-based polymer.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: March 18, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chae-Woong Cho, Woon-Suk Jang, Bum-Jin Chang, Ki-Jun Kim, Kwi-Seok Choi
  • Publication number: 20140038046
    Abstract: An anode including; an anode active material; and a porous binder including a nanopore, wherein an anode mixture density is about 1.5 g/cc or greater, a lithium battery including the anode, a binder composition, and a method of manufacturing the electrode.
    Type: Application
    Filed: February 15, 2013
    Publication date: February 6, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Beom-Wook Lee, Bum-Jin Chang, Hye-Sun Jeong
  • Publication number: 20130011733
    Abstract: An electrode for a lithium secondary battery, the electrode including: an electrode active material; and a composite including a clay and a polymer intercalated between layers of the clay, a method of manufacturing the electrode, and a lithium secondary battery including the electrode.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 10, 2013
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Bum-Jin CHANG, Woon-Suk JANG, Chae-Woong CHO, Seung-Hun HAN, Ki-Jun KIM, Kwi-Seok CHOI
  • Publication number: 20120189915
    Abstract: An electrode for a lithium secondary battery includes an electrode active material, a conductive agent, and a polyurethane-based compound, and has pores having an average diameter of about 2 to about 20 nm. A lithium secondary battery includes the electrode.
    Type: Application
    Filed: September 24, 2011
    Publication date: July 26, 2012
    Inventors: Chae-Woong Cho, Woon-Suk Jang, Bum-Jin Chang, Ki-Jun Kim, Kwi-Seok Choi, Maeng-Eun Lee
  • Patent number: 8227988
    Abstract: Provided is a material for forming barrier ribs, barrier ribs formed using the material, and a PDP comprising the barrier ribs. The material is photosensitive and made from a glass frit composition which is environmentally friendly (no Pb or Bi) and also prevents light scattering. The primary component of the glass frit is P2O5. Other components can be included in the barrier rib forming material such as an alkali-based metal oxide, B2O3, SiO2, etc. The barrier rib formed of the glass frit can additionally include a photosensitive organic material which may include a crosslinking agent, a polyfunctional monomer or oligomer, a photo initiator, a binder and an additive. A method of forming the barrier ribs comprising the glass frit composition is also provided as is a PDP including such barrier ribs.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: July 24, 2012
    Assignee: Samsung SDI Co., Ltd
    Inventors: Beom-Wook Lee, Jong-Seo Choi, Kwi-Seok Choi, Myung-Duk Lim, Bum-Jin Chang, Jong-Hee Hwang