Patents by Inventor Jong-beom Kim
Jong-beom 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: 20100319195Abstract: Provided are a piezoelectric inkjet printhead and a method of manufacturing the same. The piezoelectric inkjet printhead includes first and second single-crystalline silicon substrates. An ink flow path is disposed in a first surface of the first substrate. The ink flow path includes an ink introduction port, a manifold for supplying ink, a plurality of pressure chambers filled with ink to be ejected, a plurality of restrictors for connecting the manifold with the plurality of pressure chambers, respectively, and a plurality of nozzles for ejecting ink. The second substrate is bonded to the first substrate to thereby complete the ink flow path. A plurality of piezoelectric actuators are disposed on a second surface of the first substrate to correspond to each of the pressure chambers and provide drivability required for ejecting ink to the respective pressure chambers.Type: ApplicationFiled: August 9, 2010Publication date: December 23, 2010Applicant: Samsung Electro-Mechanics Co Ltd.Inventors: Jong-beom Kim, Jae-chang Lee
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Patent number: 7789496Abstract: Provided are a piezoelectric inkjet printhead and a method of manufacturing the same. The piezoelectric inkjet printhead includes first and second single-crystalline silicon substrates. An ink flow path is disposed in a first surface of the first substrate. The ink flow path includes an ink introduction port, a manifold for supplying ink, a plurality of pressure chambers filled with ink to be ejected, a plurality of restrictors for connecting the manifold with the plurality of pressure chambers, respectively, and a plurality of nozzles for ejecting ink. The second substrate is bonded to the first substrate to thereby complete the ink flow path. A plurality of piezoelectric actuators are disposed on a second surface of the first substrate to correspond to each of the pressure chambers and provide drivability required for ejecting ink to the respective pressure chambers.Type: GrantFiled: February 27, 2008Date of Patent: September 7, 2010Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jong-beom Kim, Jae-chang Lee
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Publication number: 20090218294Abstract: The present invention relates to a method for recovering an organic-inorganic element-doped metal oxide from a hydrolysable metal compound, accompanied with contaminated water treatment. The present invention comprises steps of: a) adding a hydrolysable metal compound as a coagulant to a contaminated water to form a separable floc between the hydrolysable metal compound and contaminants present in contaminated water; b) separating the separable floc and the pre-treated water after flocculation treatment; and c) calcinating the separated floc over 500° C. to produce an organic-inorganic element-doped metal oxide. More preferably, the present invention further comprises subjecting the pre-treated water of the step b) to a microwave treatment to cause a photocatalytic degradation of an organic contaminant that remains in the pre-treated water, with the assistance of the remaining hydrolysable metal compound.Type: ApplicationFiled: January 18, 2006Publication date: September 3, 2009Applicants: PHOTO & ENVIRONMENTAL TECHNOLOGY CO., LTD., UNIVERSITY OF TECHNOLOGY, SYDNEYInventors: Hokyong Shon, Vigneswaran Saravanamuthu, Erdei Laszlo, Jong Ho Kim, Jong Beom Kim, Dong Lyun Cho, Byung Chul Choi, Kun Jung Kim, Myung Wan Kim, Sung Jung Song, Hee Ju Park, Jaeweon Cho, In-soo Kim, Seung-hyun Kim
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Publication number: 20090102895Abstract: Provided are a piezoelectric inkjet printhead and a method of manufacturing the same. The piezoelectric inkjet printhead includes first and second single-crystalline silicon substrates. An ink flow path is disposed in a first surface of the first substrate. The ink flow path includes an ink introduction port, a manifold for supplying ink, a plurality of pressure chambers filled with ink to be ejected, a plurality of restrictors for connecting the manifold with the plurality of pressure chambers, respectively, and a plurality of nozzles for ejecting ink. The second substrate is bonded to the first substrate to thereby complete the ink flow path. A plurality of piezoelectric actuators are disposed on a second surface of the first substrate to correspond to each of the pressure chambers and provide drivability required for ejecting ink to the respective pressure chambers.Type: ApplicationFiled: February 27, 2008Publication date: April 23, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Jong-beom Kim, Jae-chang Lee
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Patent number: 7445314Abstract: In a piezoelectric ink-jet printhead, and a method of manufacturing a nozzle plate, the piezoelectric ink-jet printhead includes a flow path plate having an ink flow path including pressure chambers to be filled with ink to be ejected, a piezoelectric actuator formed on an upper surface of the flow path plate and for supplying a driving force for ink ejection to the pressure chambers, and a nozzle plate bonded to a lower surface of the flow path plate including nozzles for ejecting ink from the pressure chambers bored through the nozzle plate. The printhead may further include a heater formed on a lower surface of the nozzle plate for heating ink in the ink flow path and/or a temperature detector formed on a lower surface of the nozzle plate or on an upper surface of the flow path plate.Type: GrantFiled: February 25, 2005Date of Patent: November 4, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-chang Lee, Jung-min Oh, Jae-woo Chung, Jong-beom Kim, Seung-mo Lim
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Publication number: 20080266350Abstract: An apparatus to print printing patterns using an inkjet technique and a method thereof. The apparatus includes an inkjet head to eject ink on a substrate to form the printing patterns, and a solvent coating unit disposed on at least one side of the inkjet head to uniformize a solvent atmosphere formed around the printing patterns during a drying of the ink. The solvent coating unit coats a solvent layer on the substrate to surround the printing patterns formed on an edge of the substrate.Type: ApplicationFiled: September 24, 2007Publication date: October 30, 2008Applicant: Samsung Electronics Co., LtdInventor: Jong-beom KIM
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Patent number: 7393072Abstract: A method of driving an ink-jet printhead, the ink-jet printhead having a pressure chamber to be filled with ink, a piezoelectric actuator for varying a volume of the pressure chamber, and a nozzle, through which an ink droplet is ejected, connected to the pressure chamber, the method including applying a driving pulse to the piezoelectric actuator to change the volume of the pressure chamber, thereby ejecting the ink droplet through the nozzle due to a change in pressure in the pressure chamber caused by the change in volume of the pressure chamber, and changing a volume of the ink droplet ejected through the nozzle by maintaining a rising time of the driving pulse constant and adjusting a duration time of a maximum voltage of the driving pulse.Type: GrantFiled: February 8, 2005Date of Patent: July 1, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Seong-taek Lim, Jae-woo Chung, Jong-beom Kim, Kwang-ho Lee
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Publication number: 20080043077Abstract: An inkjet printhead having a bezel structure to remove ink bubbles. The inkjet printhead includes a channel plate having an ink channel, actuators formed on the channel plate to provide driving forces to eject the ink, and an ink-supply bezel coupled to the channel plate. The ink-supply bezel includes an ink reservoir that is connected to an ink inlet and stores ink that is to be supplied to the ink channel, an ink supply port through which ink is supplied to the ink reservoir, and an air discharge port through which bubbles that are removed from the ink of the ink reservoir are discharged. The ink supply port and the air discharge port can be formed closed to both ends of the top surface of the ink reservoir, respectively. The ink supply port can have a bottom end lower than that of the air discharge port. The ink reservoir can include a sloped ceiling surface. Therefore, ink bubbles can be effectively removed from the ink before the ink is supplied to the ink channel.Type: ApplicationFiled: May 31, 2007Publication date: February 21, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Young-ki Hong, Jae-woo Chung, Jong-beom Kim
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Publication number: 20070195116Abstract: An inkjet printing system to control actuators in real time. The inkjet printing system includes a waveform generator to supply electric power in the form of a predetermined wave, at least one actuator to change a pressure in an ink chamber according to the electric power from the waveform generator, at least one sensing unit to continuously detect and output a voltage value for the voltage outputted by the actuator, and a controller to calculate an inductive voltage value induced by a deformation of the actuator using the detected result from the sensing unit, and to adjust the waveform of the electric power supplied by the waveform generator according to the calculated inductive voltage value, thereby controlling the actuator.Type: ApplicationFiled: December 7, 2006Publication date: August 23, 2007Applicant: Samsung Electronics Co., LtdInventors: Jong-beom Kim, Jae-woo Chung, Yong-soo Lee
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Publication number: 20070195120Abstract: A method of controlling ink ejecting characteristics of an inkjet head with a plurality of nozzles. The method includes measuring initial ink ejecting characteristics of all the nozzles, comparing the measured values to a preset target point and calculating gradients from the measured values to the target point for all the nozzles, adjusting waveforms of driving pulses of the nozzles based on the calculated gradients; applying the adjusted driving pulses to all the nozzles and measuring ink ejecting characteristics of all the nozzles, and determining whether the measured results for all the nozzles are within a range of the target point, wherein the method is stopped when the measured results of all the nozzles are within the range of the target point, and the method returns to the comparing operation when the measured results of all the nozzles are not within the range of the target point.Type: ApplicationFiled: January 8, 2007Publication date: August 23, 2007Inventors: Jong-beom KIM, Yong-soo Lee, Jaw-woo Chung
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Patent number: 7168479Abstract: Provided is a highly efficient, slim heat transfer apparatus, including a main body connected to an end of a condensing zone through a liquid coolant reservoir. An extension of the main body is connected to the other end of the condensing zone. The main body has a coolant reservoir that stores liquid coolant supplied from the condensing zone, a vaporization zone in which the liquid coolant supplied from the coolant reservoir is vaporized, and a channel region connecting the coolant reservoir to the vaporization zone. The channel region acts as a channel for supplying the liquid coolant from the coolant reservoir to the vaporization zone.Type: GrantFiled: December 11, 2003Date of Patent: January 30, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Young-ki Hong, Kyung-il Cho, Byeoung-ju Ha, Jong-beom Kim, Hye-jung Cho
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Patent number: 7044201Abstract: A substantially flat heat transferring device and a method of fabricating the same are provided. The device includes a lower plate, an upper plate, a wick plate, and a liquid-phase coolant, while the lower plate contacts a heat source at its bottom. The upper plate is hermetically coupled with the lower plate along its edge to form a void therebetween. The wick plate is provided between the upper plate and the lower plate and is maintained in position relative to the lower plate by surface tension of the liquid-phase coolant. The liquid-phase coolant transfers heat by circulating between a vaporization part, where the heat source is located, to a condensing part. Here, the wick plate includes a plurality of holes and a plurality of planar wicks and makes the liquid-phase coolant flow from the condensing part to the vaporization part by capillary force between itself and the lower plate.Type: GrantFiled: August 21, 2003Date of Patent: May 16, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-il Cho, Byeoung-ju Ha, Young-ki Hong, Tae-gyun Kim, Jong-beom Kim
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Publication number: 20050190220Abstract: A method of driving an ink-jet printhead, the ink-jet printhead having a pressure chamber to be filled with ink, a piezoelectric actuator for varying a volume of the pressure chamber, and a nozzle, through which an ink droplet is ejected, connected to the pressure chamber, the method including applying a driving pulse to the piezoelectric actuator to change the volume of the pressure chamber, thereby ejecting the ink droplet through the nozzle due to a change in pressure in the pressure chamber caused by the change in volume of the pressure chamber, and changing a volume of the ink droplet ejected through the nozzle by maintaining a rising time of the driving pulse constant and adjusting a duration time of a maximum voltage of the driving pulse.Type: ApplicationFiled: February 8, 2005Publication date: September 1, 2005Inventors: Seong-taek Lim, Jae-woo Chung, Jong-beom Kim, Kwang-ho Lee
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Publication number: 20050190232Abstract: In a piezoelectric ink-jet printhead, and a method of manufacturing a nozzle plate, the piezoelectric ink-jet printhead includes a flow path plate having an ink flow path including pressure chambers to be filled with ink to be ejected, a piezoelectric actuator formed on an upper surface of the flow path plate and for supplying a driving force for ink ejection to the pressure chambers, and a nozzle plate bonded to a lower surface of the flow path plate including nozzles for ejecting ink from the pressure chambers bored through the nozzle plate. The printhead may further include a heater formed on a lower surface of the nozzle plate for heating ink in the ink flow path and/or a temperature detector formed on a lower surface of the nozzle plate or on an upper surface of the flow path plate.Type: ApplicationFiled: February 25, 2005Publication date: September 1, 2005Inventors: Jae-chang Lee, Jung-min Oh, Jae-woo Chung, Jong-beom Kim, Seung-mo Lim
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Patent number: 6880625Abstract: A capillary pumped loop system includes an evaporator for vaporizing a refrigerant by absorbing heat from the periphery, a condenser for turning the vaporized refrigerant into a liquid by radiating heat from the vaporized refrigerant, a tube for forming a circulatory path connecting the evaporator to the condenser, and a capillary unit installed to form a plurality of gaps within the tube so that the refrigerant can move along the circulatory path due to capillary action caused by the gaps. Accordingly, when the refrigerant passes through the capillary unit due to the capillary action, bubbles in the tube can be reduced. In addition, a multi-path is formed for the movement of the liquid refrigerant, so discontinuation of the refrigerant can be prevented, thereby preventing the refrigerant in the evaporator from drying out.Type: GrantFiled: March 29, 2002Date of Patent: April 19, 2005Assignee: Samsung Electronics Co., Ltd.Inventors: Mun-cheol Choi, Byeoung Ju Ha, Young-ki Hong, Jong-beom Kim
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Publication number: 20050051306Abstract: Provided is a highly efficient, slim heat transfer apparatus, including a main body connected to an end of a condensing zone through a liquid coolant reservoir. An extension of the main body is connected to the other end of the condensing zone. The main body has a coolant reservoir that stores liquid coolant supplied from the condensing zone, a vaporization zone in which the liquid coolant supplied from the coolant reservoir is vaporized, and a channel region connecting the coolant reservoir to the vaporization zone. The channel region acts as a channel for supplying the liquid coolant from the coolant reservoir to the vaporization zone.Type: ApplicationFiled: December 11, 2003Publication date: March 10, 2005Inventors: Young-Ki Hong, Kyung-Il Cho, Byeoung-Ju Ha, Jong-Beom Kim, Hye-Jung Cho
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Publication number: 20040040696Abstract: A substantially flat heat transferring device and a method of fabricating the same are provided. The device includes a lower plate, an upper plate, a wick plate, and a liquid-phase coolant, while the lower plate contacts a heat source at its bottom. The upper plate is hermetically coupled with the lower plate along its edge to form a void therebetween. The wick plate is provided between the upper plate and the lower plate and is maintained in position relative to the lower plate by surface tension of the liquid-phase coolant. The liquid-phase coolant transfers heat by circulating between a vaporization part, where the heat source is located, to a condensing part. Here, the wick plate includes a plurality of holes and a plurality of planar wicks and makes the liquid-phase coolant flow from the condensing part to the vaporization part by capillary force between itself and the lower plate.Type: ApplicationFiled: August 21, 2003Publication date: March 4, 2004Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyung-il Cho, Byeoung-ju Ha, Young-ki Hong, Tae-gyun Kim, Jong-beom Kim
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Publication number: 20020139517Abstract: A capillary pumped loop system includes an evaporator for vaporizing a refrigerant by absorbing heat from the periphery, a condenser for turning the vaporized refrigerant into a liquid by radiating heat from the vaporized refrigerant, a tube for forming a circulatory path connecting the evaporator to the condenser, and a capillary unit installed to form a plurality of gaps within the tube so that the refrigerant can move along the circulatory path due to capillary action caused by the gaps. Accordingly, when the refrigerant passes through the capillary unit due to the capillary action, bubbles in the tube can be reduced. In addition, a multi-path is formed for the movement of the liquid refrigerant, so discontinuation of the refrigerant can be prevented, thereby preventing the refrigerant in the evaporator from drying out.Type: ApplicationFiled: March 29, 2002Publication date: October 3, 2002Applicant: Samsung Electronics Co., Ltd.Inventors: Mun-cheol Choi, Byeoung Ju Ha, Young-ki Hong, Jong-beom Kim