Patents by Inventor Sahng Jin Lee
Sahng Jin Lee 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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Patent number: 11324374Abstract: A robot cleaner may include a main body; a traveling assembly moving the main body; a cleaning tool assembly installed in the lower part of the main body, and contacting a floor to clean the floor; a water-feeding unit supplying water to the cleaning tool assembly; and a capacitance measurer contacting the cleaning tool assembly, and measuring capacitance of the cleaning tool assembly in order to calculate an amount of water of the cleaning tool assembly. Accordingly, by measuring an amount of water of a cleaning tool installed in a robot cleaner based on capacitance, it is possible to accurately measure an amount of water absorbed in a cleaning tool.Type: GrantFiled: July 9, 2019Date of Patent: May 10, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Young Jung, Sahng Jin Lee, Hyun Soo Jung, Dong Won Kim, Dong Hoon Lee
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Patent number: 10945578Abstract: A robot cleaner and a control method thereof may judge whether or not water is received in the robot cleaner performing wet cleaning. The robot cleaner includes a main body, moving units, a cleaning unit mounted on the main body and contacting a floor surface to perform cleaning, a water supply unit supplying water to the cleaning unit, and a sensing unit provided on at least a portion of the water supply unit to sense whether or not there is water within the water supply unit. The sensing unit includes a housing, a transmission part radiating electromagnetic waves, a reception part receiving the electromagnetic waves radiated by the transmission part, and a stepped part provided on at least a portion of the housing along a moving path of the electromagnetic waves radiated by the transmission part and received by the reception part.Type: GrantFiled: June 16, 2014Date of Patent: March 16, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Young Jung, Byoung In Lee, Sang Hwa Choi, Dong Won Kim, Sang Sik Yoon, Sahng Jin Lee
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Publication number: 20190328197Abstract: A robot cleaner may include a main body; a traveling assembly moving the main body; a cleaning tool assembly installed in the lower part of the main body, and contacting a floor to clean the floor; a water-feeding unit supplying water to the cleaning tool assembly; and a capacitance measurer contacting the cleaning tool assembly, and measuring capacitance of the cleaning tool assembly in order to calculate an amount of water of the cleaning tool assembly. Accordingly, by measuring an amount of water of a cleaning tool installed in a robot cleaner based on capacitance, it is possible to accurately measure an amount of water absorbed in a cleaning tool.Type: ApplicationFiled: July 9, 2019Publication date: October 31, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Jae Young Jung, Sahng Jin Lee, Hyun Soo Jung, Dong Won Kim, Dong Hoon Lee
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Patent number: 10433695Abstract: A robot cleaner enables a wet cleaning, has a replaceable cleaning unit, and ensures a sufficient friction force for doing a wet cleaning of a floor. The robot cleaner includes a frame including a wheel for driving, a replaceable cleaning unit formed at a lower part of the frame to clean a bottom surface and disposed in front of the wheel, a tank disposed at an upper part of the wheel and configured to supply fluid to the cleaning unit, a pump configured to pump the fluid contained in the tank such that the fluid contained in the tank is supplied to the cleaning unit, a hose configured to extend to the pump and the upper part of the cleaning unit and through which the fluid pumped by the pump flows, and a bumper formed on a side of the frame.Type: GrantFiled: September 21, 2017Date of Patent: October 8, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Du Hwan Hyun, Hwi Chan Jang, Dong Won Kim, Byoung In Lee, Sahng Jin Lee, Won Min Lee, Hyun Soo Jung, Seung Il Han
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Patent number: 10390672Abstract: A robot cleaner may include a main body; a traveling assembly moving the main body; a cleaning tool assembly installed in the lower part of the main body, and contacting a floor to clean the floor; a water-feeding unit supplying water to the cleaning tool assembly; and a capacitance measurer contacting the cleaning tool assembly, and measuring capacitance of the cleaning tool assembly in order to calculate an amount of water of the cleaning tool assembly. Accordingly, by measuring an amount of water of a cleaning tool installed in a robot cleaner based on capacitance, it is possible to accurately measure an amount of water absorbed in a cleaning tool.Type: GrantFiled: January 28, 2014Date of Patent: August 27, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Young Jung, Sahng Jin Lee, Hyun Soo Jung, Dong Won Kim, Dong Hoon Lee
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Patent number: 10094967Abstract: Disclosed are an optical sheet, a display device including the same, and a method for manufacturing the same. The optical sheet includes a host layer, a plurality of wavelength conversion particles in the host layer, and a plurality of optical path change particles in the host layer.Type: GrantFiled: October 5, 2015Date of Patent: October 9, 2018Assignee: LG INNOTEK CO., LTD.Inventor: Sahng Jin Lee
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Publication number: 20180028035Abstract: A robot cleaner enables a wet cleaning, has a replaceable cleaning unit, and ensures a sufficient friction force for doing a wet cleaning of a floor. The robot cleaner includes a frame including a wheel for driving, a replaceable cleaning unit formed at a lower part of the frame to clean a bottom surface and disposed in front of the wheel, a tank disposed at an upper part of the wheel and configured to supply fluid to the cleaning unit, a pump configured to pump the fluid contained in the tank such that the fluid contained in the tank is supplied to the cleaning unit, a hose configured to extend to the pump and the upper part of the cleaning unit and through which the fluid pumped by the pump flows, and a bumper formed on a side of the frame.Type: ApplicationFiled: September 21, 2017Publication date: February 1, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Du Hwan HYUN, Hwi Chan JANG, Dong Won KIM, Byoung In LEE, Sahng Jin LEE, Won Min LEE, Hyun Soo JUNG, Seung II HAN
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Patent number: 9795265Abstract: A robot cleaner enables a wet cleaning, has a replaceable cleaning unit, and ensures a sufficient friction force for doing a wet cleaning of a floor. The robot cleaner includes a frame including a wheel for driving, a replaceable cleaning unit formed at a lower part of the frame to clean a bottom surface and disposed in front of the wheel, a tank disposed at an upper part of the wheel and configured to supply fluid to the cleaning unit, a pump configured to pump the fluid contained in the tank such that the fluid contained in the tank is supplied to the cleaning unit, a hose configured to extend to the pump and the upper part of the cleaning unit and through which the fluid pumped by the pump flows, and a bumper formed on a side of the frame.Type: GrantFiled: November 8, 2013Date of Patent: October 24, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Du Hwan Hyun, Hwi Chan Jang, Dong Won Kim, Byoung In Lee, Sahng Jin Lee, Won Min Lee, Hyun Soo Jung, Seung Il Han
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Publication number: 20160025918Abstract: Disclosed are an optical sheet, a display device including the same, and a method for manufacturing the same. The optical sheet includes a host layer, a plurality of wavelength conversion particles in the host layer, and a plurality of optical path change particles in the host layer.Type: ApplicationFiled: October 5, 2015Publication date: January 28, 2016Applicant: LG INNOTEK CO., LTD.Inventor: Sahng Jin LEE
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Publication number: 20140366292Abstract: A robot cleaner and a control method thereof may judge whether or not water is received in the robot cleaner performing wet cleaning. The robot cleaner includes a main body, moving units, a cleaning unit mounted on the main body and contacting a floor surface to perform cleaning, a water supply unit supplying water to the cleaning unit, and a sensing unit provided on at least a portion of the water supply unit to sense whether or not there is water within the water supply unit. The sensing unit includes a housing, a transmission part radiating electromagnetic waves, a reception part receiving the electromagnetic waves radiated by the transmission part, and a stepped part provided on at least a portion of the housing along a moving path of the electromagnetic waves radiated by the transmission part and received by the reception part.Type: ApplicationFiled: June 16, 2014Publication date: December 18, 2014Inventors: Jae Young JUNG, Byoung ln LEE, Sang Hwa CHOI, Dong Won KIM, Sang Sik YOON, Sahng Jin LEE
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Publication number: 20140209122Abstract: A robot cleaner may include a main body; a traveling assembly moving the main body; a cleaning tool assembly installed in the lower part of the main body, and contacting a floor to clean the floor; a water-feeding unit supplying water to the cleaning tool assembly; and a capacitance measurer contacting the cleaning tool assembly, and measuring capacitance of the cleaning tool assembly in order to calculate an amount of water of the cleaning tool assembly. Accordingly, by measuring an amount of water of a cleaning tool installed in a robot cleaner based on capacitance, it is possible to accurately measure an amount of water absorbed in a cleaning tool.Type: ApplicationFiled: January 28, 2014Publication date: July 31, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Jae Young Jung, Sahng Jin Lee, Hyun Soo Jung, Dong Won Kim, Dong Hoon Lee
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Publication number: 20140130289Abstract: A robot cleaner enables a wet cleaning, has a replaceable cleaning unit, and ensures a sufficient friction force for doing a wet cleaning of a floor. The robot cleaner includes a frame including a wheel for driving, a replaceable cleaning unit formed at a lower part of the frame to clean a bottom surface and disposed in front of the wheel, a tank disposed at an upper part of the wheel and configured to supply fluid to the cleaning unit, a pump configured to pump the fluid contained in the tank such that the fluid contained in the tank is supplied to the cleaning unit, a hose configured to extend to the pump and the upper part of the cleaning unit and through which the fluid pumped by the pump flows, and a bumper formed on a side of the frame.Type: ApplicationFiled: November 8, 2013Publication date: May 15, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Du Hwan HYUN, Hwi Chan Jang, Dong Won Kim, Byoung In Lee, Sahng Jin Lee, Won Min Lee, Hyun Soo Jung, Seung Il Han
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Publication number: 20140111968Abstract: Disclosed are an optical sheet, a display device including the same, and a method for manufacturing the same. The optical sheet includes a host layer, a plurality of wavelength conversion particles in the host layer, and a plurality of optical path change particles in the host layer.Type: ApplicationFiled: December 7, 2011Publication date: April 24, 2014Applicant: LG INNOTEK CO., LTD.Inventor: Sahng Jin Lee