Patents Assigned to Doosan Corporation
  • 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
  • Patent number: 10008675
    Abstract: The present disclosure relates to a novel compound and an organic electroluminescent element including the same, and the compound according to the present disclosure is used for an organic material layer of the organic electroluminescent element, thereby improving the light emitting efficiency, driving voltage, lifetime, and the like of the organic electroluminescent element.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: June 26, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Young Bae Kim, Hyunjong Jo, Chang Jun Lee, Jinyong Shin, Hoe Moon Kim, Youngmi Beak, Tae Hyung Kim
  • Patent number: 9994200
    Abstract: An exemplary embodiment of the present disclosure relates to an automatic stopping device for a forklift, and more particularly, to an automatic stopping device for a forklift, which forcibly stops the forklift by simultaneously operating a forward clutch and a reverse clutch when an operator moves away from the forklift in a state in which an engine is turned on. According to the automatic stopping device for a forklift according to the exemplary embodiment of the present disclosure, first, it is possible to prevent a safety accident by forcibly stopping the forklift in the absence of the operator, and second, the automatic stopping device for a forklift is economical because it is possible to effectively stop the forklift using an additional simple configuration.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: June 12, 2018
    Assignee: Doosan Corporation
    Inventor: Ui Gon Choi
  • Patent number: 9981835
    Abstract: The present disclosure relates to a forklift and a forklift control method. The forklift and the forklift control method according to the present disclosure may adjust a fork/mast inclination with reference to the coefficient of friction, and precedently and appropriately adjust a fork/mast inclination right before the forklift enters or exits from a slope by referring to geological information. Further, when a degree of danger is not decreased even when a fork/mast inclination is tilted backward to the largest extend, the forklift and the forklift control method 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 load falling.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: May 29, 2018
    Assignee: DOOSAN CORPORATION
    Inventor: Dae Hyun Kim
  • Patent number: 9957389
    Abstract: The present disclosure provides: a thermosetting resin composition comprising: (a) bisphenol M-type epoxy resin; (b) bisphenol M-type cyanate ester resin; (c) polyphenylene ether having two or more vinyl groups at both ends of a branched chain, or oligomers thereof; and (d) a cross-linking curing agent, a prepreg comprising the composition, and a printed circuit board. The printed circuit board simultaneously has an excellent low dielectric loss characteristic, a great moisture-absorbing and heat-resistant characteristic, a low thermal expansion characteristic, thermal stability and the like.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: May 1, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Dong Hee Jung, Duk Sang Han, Jeong Don Kwon, Moo Hyun Kim, Do Woong Hong
  • Patent number: 9960363
    Abstract: The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 1, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Min-Sik Eum, Ho-Cheol Park, Chang Jun Lee, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
  • Patent number: 9952290
    Abstract: The present disclosures relates to an apparatus and a method for detecting power abnormality of an engine-type forklift truck, and the apparatus for detecting power abnormality of an engine-type forklift truck includes: a power supply unit including a pair of batteries so as to supply power to an electric device included in an engine-type forklift truck; an engine control unit (ECU) which receives power from the power supply unit; an equalizer which is provided between the power supply unit and the ECU so as to maintain a voltage balance between the pair of batteries and adjust a voltage of power supplied to the ECU; and an abnormality detecting unit which compares a voltage input from the pair of batteries with a voltage input from any one of the pair of batteries, and detects abnormality in the voltage balance.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: April 24, 2018
    Assignee: DOOSAN CORPORATION
    Inventor: Pyung Soo Kim
  • Patent number: 9905777
    Abstract: The present invention relates to a novel compound and an organic electroluminescence device including the same, and the compound according to the present invention may be used in an organic material layer, preferably a light-emitting layer of an organic electroluminescence device, thereby enhancing the light-emitting efficiency, driving voltage, lifespan, and the like of the organic electroluminescence device.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: February 27, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Tae Hyung Kim, In Hyuk Lee, Hoe Moon Kim, Jin Yong Shin, Ho Cheol Park, Chang Jun Lee, Young Mi Beak, Eun Jung Lee
  • Publication number: 20180053900
    Abstract: The present invention relates to a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.
    Type: Application
    Filed: December 24, 2015
    Publication date: February 22, 2018
    Applicant: DOOSAN CORPORATION
    Inventors: Min-Sik EUM, Hojun SON, Woo Jae PARK, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
  • Patent number: 9876237
    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: January 23, 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
  • Publication number: 20180013072
    Abstract: The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.
    Type: Application
    Filed: December 21, 2015
    Publication date: January 11, 2018
    Applicant: DOOSAN CORPORATION
    Inventors: Min-Sik EUM, Ho-Cheol PARK, Chang Jun LEE, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
  • Patent number: 9837618
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: December 5, 2017
    Assignee: DOOSAN CORPORATION
    Inventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
  • Publication number: 20170342264
    Abstract: The present invention related to a thermosetting resin composition for high frequency, the composition containing (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. The present invention may provide a printed circuit board for high frequency which simultaneously exhibits low dielectric loss characteristic and good moisture-absorption heat resistance, low thermal expansion characteristics, excellent thermal stability, excellent processability, and the like.
    Type: Application
    Filed: December 21, 2015
    Publication date: November 30, 2017
    Applicant: DOOSAN CORPORATION
    Inventors: Dong Hee JUNG, Jeong Don KWON, Moo Hyun KIM, Do Woong HONG