Patents by Inventor Young-choon Kim
Young-choon Kim 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).
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Publication number: 20240147845Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.Type: ApplicationFiled: December 6, 2023Publication date: May 2, 2024Inventors: Kyoung-Jin PARK, Tae-Jin LEE, Jae-Hoon SHIM, Yoo Jin DOH, Hee-Choon AHN, Young-Kwang KIM, Doo-Hyeon MOON, Jeong-Eun YANG, Su-Hyun LEE, Chi-Sik KIM, Ji-Song JUN
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Publication number: 20240090328Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.Type: ApplicationFiled: October 26, 2023Publication date: March 14, 2024Inventors: Hee-Choon AHN, Young-Kwang KIM, Su-Hyun LEE, Ji-Song JUN, Seon-Woo LEE, Chi-Sik KIM, Kyoung-Jin PARK, Nam-Kyun KIM, Kyung-Hoon CHOI, Jae-Hoon SHIM, Young-Jun CHO, Kyung-Joo LEE
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Patent number: 11918781Abstract: An infusion flow regulator includes: a main body having an inlet through which fluid is introduced and an outlet through which the fluid is discharged; and a rotary dial rotatably coupled to the main body, with a sealing member interposed therebetween, so as to regulate a flow rate of the fluid, in which the rotary dial includes a regulating flow path having a shape of a recessed groove in cross section with a first width and a first height, and the regulating flow path includes a first region in which the first width is constant and the first height is decreased, and a second region in which both the first width and the first height are decreased. By the aforementioned configuration, the infusion flow regulator for the fluid can accurately regulate the flow rate even in a region where the flow rate of the fluid is very small.Type: GrantFiled: May 27, 2019Date of Patent: March 5, 2024Assignee: Korea Aerospace Research InstituteInventors: Poo Min Park, Hyung Mo Kim, Tae Choon Park, Young Seok Kang, Jae Sung Huh, Doo Yong Lee
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Patent number: 11917907Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.Type: GrantFiled: November 22, 2021Date of Patent: February 27, 2024Assignee: Rohm and Haas Electronic Materials Korea Ltd.Inventors: Kyoung-Jin Park, Tae-Jin Lee, Jae-Hoon Shim, Yoo Jin Doh, Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Ji-Song Jun
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Publication number: 20230134540Abstract: An electric mobility apparatus is disclosed. The electric mobility apparatus may include a steering assembly including a handlebar manipulated by a user and a support shaft having one side coupled to the handlebar, a mid-frame assembly including a user boarding part formed on an upper end, a front frame assembly having one side coupled to the support shaft and the other side on which a first connector having at least a portion fastened to one side of the mid-frame assembly is formed, and a tail frame assembly including a second connector of which at least a portion is fastened to the other side of the mid-frame assembly.Type: ApplicationFiled: February 10, 2021Publication date: May 4, 2023Inventors: Dong Yoon KIM, Dong Geun LEE, Young Choon KIM
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Publication number: 20190240637Abstract: Disclosed is a light-material coupling and emitting apparatus for coupling and emitting light and a material. The present disclosure is to utilize light coupled with a gaseous material or a certain state of material. According to the present disclosure, light is coupled with a gas, a liquid, or any state (plasma state) of material, and the coupled light and the material are emitted toward a target object or a predetermined region. When reaching the target object or the predetermined region, the material reacts with another material existing around the target object or the predetermined region. According to one embodiment, when light coupled with a first material is emitted from the light-material coupling and emitting apparatus, the first material coupled with the light falls away from the light and then chemically reacts with a second material. The apparatus uses a specific effect caused by this chemical reaction.Type: ApplicationFiled: December 20, 2018Publication date: August 8, 2019Inventors: Jong Duck PARK, Young Choon KIM
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Patent number: 8890474Abstract: A universal charging device, the device comprising: a charging pack including at least one of an AC terminal for inputting an AC power, an AC/DC converter for rectifying the AC power to a DC power, a DC terminal for outputting a DC power of a first power value, and a charging pack switch for turning on/off an output of the DC power.Type: GrantFiled: April 14, 2011Date of Patent: November 18, 2014Assignees: Hanwha Techm Co., Ltd., Moderntec Co., LtdInventors: Young-Choon Kim, Seong-Doo Kim
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Patent number: 8177325Abstract: An inkjet image forming apparatus includes a device to protect an ink sensing device operated without use of a separate drive source. The inkjet image forming apparatus includes at least one protecting device having a protecting member to protect the ink sensing device from impurities or to release the ink sensing device from protection, the protecting member being operated in linkage with the maintenance device to thereby be moved between the first position and the second position.Type: GrantFiled: May 8, 2009Date of Patent: May 15, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Young Choon Kim, Karp Sik Youn, Dong Woo Ha
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Patent number: 8152274Abstract: An image forming apparatus that provides an easy installation and separation of a print head thereto and therefrom. The image forming apparatus can include a body, a print head including a nozzle part having a length at least a width as wide as a printable printing medium, a head mount provided at the body to mount the print head, at least one first connector provided at the head mount, and at least one second connector provided at the print head to correspond to the at least one first connector. The first connector and second connector are connected with each other as the print head is mounted to the head mount.Type: GrantFiled: November 20, 2008Date of Patent: April 10, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Young Choon Kim, Karp Sik Youn, Dong Woo Ha
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Publication number: 20110291616Abstract: A universal charging device, the device comprising: a charging pack including at least one of an AC terminal for inputting an AC power, an AC/DC converter for rectifying the AC power to a DC power, a DC terminal for outputting a DC power of a first power value, and a charging pack switch for turning on/off an output of the DC power.Type: ApplicationFiled: April 14, 2011Publication date: December 1, 2011Applicants: MODERNTEC CO., LTD., HANWHA TECHM CO., LTD.Inventors: Young-Choon Kim, Seong-Doo Kim
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Patent number: 8052277Abstract: An inkjet image forming apparatus having an array type print head to stably deliver a printing medium through a printing zone. The inkjet image forming apparatus includes an array type print head including a nozzle part to discharge ink to a printing zone, a first rolling unit having a first nip portion to nip the printing medium, wherein the first nip portion is disposed before the printing zone to deliver the printing medium to the printing zone, and a second rolling unit having a second nip portion to nip the printing medium, wherein the second nip portion is disposed downstream of the first rolling unit in a delivery direction of the printing medium. A distance between the first nip portion and the second nip portion is less than or equal to 3 inches.Type: GrantFiled: May 28, 2009Date of Patent: November 8, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Young Choon Kim, Heon Soo Park, Chang Shin Park, Karp Sik Youn, Myung Song Jung
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Publication number: 20110011337Abstract: An image forming apparatus including a medium feeding unit to supply a print medium, a medium coating assembly to coat the print medium with a coating liquid, and an image forming unit to form an image on the coated print medium, the medium coating assembly including a container to store the coating liquid, a coating unit to coat the print medium with the coating liquid, a channel to guide the coating liquid to move between the container and the coating unit, and a controller to selectively control the coating liquid to be supplied from the container to the coating unit and to be recovered from the coating unit to the container through the same channel.Type: ApplicationFiled: January 29, 2010Publication date: January 20, 2011Applicant: Samsung Electronics Co., LtdInventors: Il-ju MUN, Karp-sik Youn, Dong-woo Ha, In-su Lee, Young-choon Kim
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Patent number: 7871144Abstract: An inkjet image-forming apparatus includes an array inkjet head that is formed along a printing path through which a paper on which an image or a test image is formed is discharged, and includes a length corresponding to the width of the paper, and a plurality of nozzles to eject ink, and a missing nozzle detection unit formed along a missing nozzle detection path that is connected to the printing path to scan an image or a test image formed by the array inkjet head by transporting the paper (P), on which the test image is formed, towards the printing path, and a method thereof.Type: GrantFiled: December 21, 2007Date of Patent: January 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Young-choon Kim
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Publication number: 20100066793Abstract: An inkjet image forming apparatus having an array type print head to stably deliver a printing medium through a printing zone. The inkjet image forming apparatus includes an array type print head including a nozzle part to discharge ink to a printing zone, a first rolling unit having a first nip portion to nip the printing medium, wherein the first nip portion is disposed before the printing zone to deliver the printing medium to the printing zone, and a second rolling unit having a second nip portion to nip the printing medium, wherein the second nip portion is disposed downstream of the first rolling unit in a delivery direction of the printing medium. A distance between the first nip portion and the second nip portion is less than or equal to 3 inches.Type: ApplicationFiled: May 28, 2009Publication date: March 18, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Young Choon KIM, Heon Soo PARK, Chan Shin PARK, Karp Sik YOUN, Myung Song JUNG
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Publication number: 20100002046Abstract: An inkjet image forming apparatus includes a device to protect an ink sensing device operated without use of a separate drive source. The inkjet image forming apparatus includes at least one protecting device having a protecting member to protect the ink sensing device from impurities or to release the ink sensing device from protection, the protecting member being operated in linkage with the maintenance device to thereby be moved between the first position and the second position.Type: ApplicationFiled: May 8, 2009Publication date: January 7, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Young Choon Kim, Karp Sik Youn, Dong Woo Ha
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Publication number: 20090141084Abstract: An image forming apparatus that provides an easy installation and separation of a print head thereto and therefrom. The image forming apparatus can include a body, a print head including a nozzle part having a length at least a width as wide as a printable printing medium, a head mount provided at the body to mount the print head, at least one first connector provided at the head mount, and at least one second connector provided at the print head to correspond to the at least one first connector. The first connector and second connector are connected with each other as the print head is mounted to the head mount.Type: ApplicationFiled: November 20, 2008Publication date: June 4, 2009Inventors: Young Choon KIM, Karp Sik Youn, Dong Woo Ha
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Publication number: 20080278528Abstract: An inkjet image-forming apparatus includes an array inkjet head that is formed along a printing path through which a paper on which an image or a test image is formed is discharged, and includes a length corresponding to the width of the paper, and a plurality of nozzles to eject ink, and a missing nozzle detection unit formed along a missing nozzle detection path that is connected to the printing path to scan an image or a test image formed by the array inkjet head by transporting the paper (P), on which the test image is formed, towards the printing path, and a method thereof.Type: ApplicationFiled: December 21, 2007Publication date: November 13, 2008Applicant: Samsung Electronics Co., Ltd.Inventor: Young-choon KIM
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Publication number: 20070292189Abstract: A multi-passing apparatus to repeatedly transfer a recording medium to an image forming unit to realize a high resolution image and an image forming apparatus including the multi-passing apparatus. The multi-passing apparatus includes a feeding passageway extending from a feeding unit to an image forming unit, a divergent passageway extending from the feeding passageway to support a repeated transfer of a recording medium, and a guide unit to align a front end of the recording medium as the recording medium is transferred through the feeding passageway, and to guide the recording medium so that the recording medium passing the image forming unit for the first time is fed to the divergent passageway.Type: ApplicationFiled: December 5, 2006Publication date: December 20, 2007Applicant: Samsung Electronics Co., Ltd.Inventor: Young-choon Kim
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Publication number: 20070057995Abstract: A hybrid ink jet image forming apparatus is provided. The hybrid ink jet image forming apparatus includes: a shuttle printing head which linearly reciprocates perpendicular to a feeding direction of a paper to form an image; an array printing head which includes a nozzle portion having the same width of the paper to form an image; a first platen which is disposed under the shuttle printing head in a rotating manner, supports a feeding paper, and includes a capping unit for capping the array printing head; a second platen which is disposed under the array printing head in a manner that can linearly reciprocate along with the feeding direction of the paper and supports the feeding paper; and a driving means which changes the position of the first platen, horizontally moves the second platen, and caps the nozzle portion of the array printing head by the capping unit.Type: ApplicationFiled: August 10, 2006Publication date: March 15, 2007Applicant: SAMSUNG Electronics Co., Ltd.Inventor: Young-choon Kim