Patents Assigned to Doosan Corporation
  • Publication number: 20190292364
    Abstract: The present invention relates to a thermosetting resin composition, and a prepreg, a laminate sheet and a printed circuit board, which use the same. The thermosetting resin composition comprises: (a) a polyphenylene ether having two or more unsaturated substituents, selected from the group consisting of vinyl and allyl groups, at both ends of its molecular chain, or an oligomer thereof; and (b) a polytetrafluoroethylene (PTFE) filler.
    Type: Application
    Filed: June 30, 2017
    Publication date: September 26, 2019
    Applicant: DOOSAN CORPORATION
    Inventors: Moo Hyun KIM, Jeong Don KWON, Dong Hee JUNG, Ji Hong SHIN
  • Publication number: 20190284393
    Abstract: A thermosetting resin composition for use with high frequencies is provided. The composition includes: (a) a polyphenylene ether having two or more unsaturated substituent groups selected from the group consisting of the vinyl group and the allyl group at both ends of the molecular chain thereof, or an oligomer of said polyphenylene ether; (b) three or more different types of cross-linking curing agents; and (c) a flame retardant. It is possible to provide a printed circuit board for use with high frequencies which simultaneously exhibits, inter alia, an outstanding low dielectric loss characteristic and good moisture-absorption heat resistance, low thermal expansion characteristics, thermal stability and outstanding working properties.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 19, 2019
    Applicant: DOOSAN CORPORATION
    Inventors: Dong Hee JUNG, Jeong Don KWON, Moo Hyun KIM, Do Woong HONG
  • Publication number: 20190263806
    Abstract: The present invention relates to a novel compound and an organic electroluminescent device including the same, and the compound according to the present invention is used in an organic material layer of an organic electroluminescent device, preferably an electron transport layer or a hole blocking layer, and may increase luminous efficiency, driving voltage and lifespan of the organic electroluminescent device.
    Type: Application
    Filed: October 16, 2017
    Publication date: August 29, 2019
    Applicant: DOOSAN CORPORATION
    Inventors: Yong Hwan LEE, Jae Yi SIM
  • Publication number: 20190218083
    Abstract: A forklift according to an exemplary embodiment of the present disclosure includes: a first hydraulic pump and a second hydraulic pump each of which generates a working fluid; a lift cylinder which raises or lowers a carriage; a first hydraulic line which supplies the working fluid from the first hydraulic pump to the lift cylinder and a second hydraulic line which supplies the working fluid from the second hydraulic pump to the lift cylinder; a first lift spool which controls the working fluid to be supplied to the lift cylinder through the first hydraulic line and a second lift spool which controls the working fluid to be supplied to the lift cylinder through the second hydraulic line; a first pilot line which transmits a pilot signal for operating the first lift spool and a second pilot line which transmits a pilot signal for operating the second lift spool; and an opening/closing valve which selectively closes any one of the first pilot line and the second pilot line.
    Type: Application
    Filed: August 24, 2017
    Publication date: July 18, 2019
    Applicant: DOOSAN CORPORATION
    Inventors: Deok Rae KIM, Yong Seok RYU, Byung Kwon LEE, Jun Il YI
  • Publication number: 20190203688
    Abstract: According to a system and a method for controlling an engine for an industrial vehicle according to an exemplary embodiment of the present specification, a control unit acquires state information of the industrial vehicle, accurately determines a state of the industrial vehicle based on the acquired state information, and controls whether to start or stop the engine in an idle state.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: DOOSAN CORPORATION
    Inventor: Dongyae KIM
  • Publication number: 20190202676
    Abstract: The present disclosure relates to a fork movement control device. A fork movement control device according to an exemplary embodiment of the present disclosure may control and simultaneously move two forks by manipulating a single lever.
    Type: Application
    Filed: August 2, 2017
    Publication date: July 4, 2019
    Applicant: DOOSAN CORPORATION
    Inventor: Ki Eop NA
  • Publication number: 20190202320
    Abstract: The present disclosure relates to an electric forklift and a method of driving the same which are capable of increasing a lifespan of a battery, and the electric forklift includes: a traveling motor which operates a wheel; a working machine motor which operates a working machine; a control unit which controls the operations of the traveling motor and the working machine motor based on an output control signal inputted from the outside; a battery which supplies electric power to the traveling motor, the working machine motor, and the control unit; and a temperature detecting unit which detects a temperature of the battery, in which the control unit controls an operation of at least one of the traveling motor and the working machine motor based on a detected temperature from the temperature detecting unit.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: DOOSAN CORPORATION
    Inventor: Jin Yong LEE
  • Publication number: 20190157567
    Abstract: The present disclosure relates to a novel compound having excellent hole injection capabilities and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which includes the compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and a service life.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Hyung KIM, In Hyuk LEE, Yong Hwan LEE, Jin Yong SHIN, Ho Cheol PARK, Chang Jun LEE, Eun Jung LEE, Young Mi BEAK
  • Patent number: 10297759
    Abstract: The present disclosure relates to a novel compound having excellent hole injection capabilities and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which includes the compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and a service life.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: May 21, 2019
    Assignee: DOOSAN CORPORATION
    Inventors: Tae Hyung Kim, In Hyuk Lee, Yong Hwan Lee, Jin Yong Shin, Ho Cheol Park, Chang Jun Lee, Eun Jung Lee, Young Mi Beak
  • Publication number: 20190084815
    Abstract: A forklift according to an exemplary embodiment of the present invention is capable of measuring weight of a cargo that is to be transported by the forklift. The forklift according to the exemplary embodiment of the present invention measures weight of a cargo by a displacement according to compression by tensile force applied to the chain 50 in a portion, in which the chain 50 is installed in a top frame 14.
    Type: Application
    Filed: December 8, 2015
    Publication date: March 21, 2019
    Applicant: DOOSAN CORPORATION
    Inventor: Ki Eop NA
  • Patent number: 10236451
    Abstract: Disclosed is a novel benzimidazole compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which comprises the benzimidazole compound in one or more organic material layers thereof so as to thereby achieve enhanced characteristics, such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: March 19, 2019
    Assignee: DOOSAN CORPORATION
    Inventors: Hyung Chan Bae, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Young Shin
  • Patent number: 10230053
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode opposite the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, the electron transport region including an electron control layer, wherein the hole transport region includes at least one compound selected from a first compound represented by Formula 1 and a second compound represented by Formula 2, and the electron control layer includes a third compound represented by Formula 3:
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: March 12, 2019
    Assignees: Samsung Display Co., Ltd., Doosan Corporation
    Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Sang-Woo Lee, Chang-Woong Chu, Tae-Hyung Kim, Ho-Cheol Park, Chang-Jun Lee, Young-Bae Kim, Hoe-Moon Kim
  • Patent number: 10218064
    Abstract: The present disclosure provides a composite substrate for an antenna module, which includes: a first non-magnetic substrate that is configured to have a first copper foil; a second non-magnetic substrate that is configured to have a second copper foil; and a magnetic sheet that is configured to be interposed between the first non-magnetic substrate and the second non-magnetic substrate and that is configured to be integrally laminated with the non-magnetic substrates, and further provides a preparation method thereof. The present disclosure provides a simplification of a process, low costs, a slim design, and a grip-feeling of a metal material while providing functions of wireless charging, MST, and NFC.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: February 26, 2019
    Assignee: DOOSAN CORPORATION
    Inventors: Yoon Ho Jung, Hyung Min Cho, Hyo Seung Jin, Eun Song Baik, Tae Geuk Lim
  • Patent number: 10155646
    Abstract: The present disclosure relates to an apparatus and a method for controlling a forklift. The apparatus and the method for controlling the forklift according to the present disclosure adjusts a fork/mast inclination by referring to cargo load and forklift speed, and particularly, when a movement direction of a cargo when the cargo slides on a fork in a forward direction, thereby preventing the cargo from falling. Further, when a degree of danger is not decreased even when a fork/mast inclination is tilted backward to the largest extent, the apparatus and the method for controlling the forklift according to the present disclosure may decrease a travelling speed of a vehicle by decreasing an output of the forklift or operating a brake, thereby remarkably decreasing the danger of the cargo falling.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: December 18, 2018
    Assignee: DOOSAN CORPORATION
    Inventor: Jin Yong Lee
  • Publication number: 20180346439
    Abstract: The present disclosure relates to a novel compound, and an organic electroluminescent device including the same, and by using the compound according to the present disclosure in an organic material layer, preferably a light emitting layer or an auxiliary light emitting layer, of an organic electroluminescent device, light emission efficiency, a driving voltage, a lifetime and the like of the organic electroluminescent device may be enhanced.
    Type: Application
    Filed: December 23, 2016
    Publication date: December 6, 2018
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Jin CHOI, Jae Hoon LEE, Young Bae KIM
  • Patent number: 10109865
    Abstract: A lamellar structure graphite foil is used as a material for a separator for a fuel cell, and a hydrophobic layer is formed by impregnation on flow-field channels of the graphite foil. Such a separator is manufactured by forming the flow field channel by etching the graphite foil formed with the mask pattern thereon and forming a hydrophobic layer by impregnation. According to such a separator, performance of a fuel cell stack is enhanced and the manufacturing process of a separator is simplified.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: October 23, 2018
    Assignee: Doosan Corporation
    Inventors: Ho-Suk Kim, Byung-Sun Hong, Mee-Nam Shinn
  • Patent number: 10074458
    Abstract: The present disclosure relates to an insulation film capable of being used in a flexible flat cable(FFC) and having excellent flexibility and mechanical properties, and a flexible flat cable (FFC) using the insulation film. The insulation film provided in the present disclosure has very excellent mechanical properties such as tensile strength, elongation and flexibility, and also has very excellent heat-resisting properties such as contractibility and degeneration caused by heat. In addition, by using the insulation film, the flexible flat cable provided in the present disclosure also has very excellent mechanical properties and heat-resisting properties.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: September 11, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Sung-Moon Kim, Kwang-Seok Park, Eui-Dock Ryu, In-Ki Jeong, Su-Byung Park
  • Patent number: 10074858
    Abstract: A fuel cell separator, a fuel cell stack having the fuel cell separator, and a reactant gas control method of the fuel cell stack are provided. That is, even when the fuel cell stack operates under the low load operation condition, a reactant gas is supplied to the reactant gas passages of the fuel cell separator, and thus, the length of the passage can be shortened by 50% as compared with the prior art having only one reactant gas passage. Therefore, the reactant gas can be effectively supplied without experiencing pressure loss. Further, in the high load operation of the fuel cell stack, the reactant gas is introduced into the first reactant gas passage of the fuel cell separator and utilized in half of the whole electrode area. Subsequently, the reactant gas is introduced into the second reactant gas passage and utilized in the remaining half of the electrode area.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: September 11, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Sung-Jin Oh, Kyoung-Hwang Lee, Seung-Ho Baek, Sung-Hoon Lee, Il-Tae Park, Byung-Sun Hong, Mee-Nam Shinn
  • Patent number: 10038146
    Abstract: The present invention relates to a novel indole-based compound having superior hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which comprises the indole-based compound in one or more organic layers thereof so as to thereby achieve improved characteristics, such as light-emitting efficiency, driving voltage, and lifespan characteristics.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: July 31, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Hoe Moon Kim, Sung Moo Kim, Young Bae Kim, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Young Mi Baek, Jin Yong Shin
  • Publication number: 20180205142
    Abstract: The present disclosure provides a composite substrate for an antenna module, which includes: a first non-magnetic substrate that is configured to have a first copper foil; a second non-magnetic substrate that is configured to have a second copper foil; and a magnetic sheet that is configured to be interposed between the first non-magnetic substrate and the second non-magnetic substrate and that is configured to be integrally laminated with the non-magnetic substrates, and further provides a preparation method thereof. The present disclosure provides a simplification of a process, low costs, a slim design, and a grip-feeling of a metal material while providing functions of wireless charging, MST, and NFC.
    Type: Application
    Filed: August 30, 2016
    Publication date: July 19, 2018
    Applicant: DOOSAN CORPORATION
    Inventors: Yoon Ho JUNG, Hyung Min CHO, Hyo Seung JIN, Eun Song BAIK, Tae Geuk LIM