Patents by Inventor Yu-Feng Han
Yu-Feng Han 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: 20240139901Abstract: The present disclosure provides a tray assembly having a dual-structure. The tray assembly comprises an upper tray and a lower tray. The lower tray is capable of being easily disengaged from the upper tray by use of a dovetail joint that allows the lower tray to slidably move relative to the upper tray. The tray assembly also utilizes magnets to reduce the use of mechanical joints. The combination of the magnets together with the dovetail joint provides a quick and efficient way of sliding the lower tray in and out from the upper tray. The lower tray having a collection region collects any external, foreign materials generated during a chemical mechanical polishing/planarizing process. After the cleaning process, the lower tray can be slid back into the upper tray for use.Type: ApplicationFiled: January 4, 2024Publication date: May 2, 2024Inventors: Yu-Feng Han, A.S. Chen
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Patent number: 11890718Abstract: The present disclosure provides a tray assembly having a dual-structure. The tray assembly comprises an upper tray and a lower tray. The lower tray is capable of being easily disengaged from the upper tray by use of a dovetail joint that allows the lower tray to slidably move relative to the upper tray. The tray assembly also utilizes magnets to reduce the use of mechanical joints. The combination of the magnets together with the dovetail joint provides a quick and efficient way of sliding the lower tray in and out from the upper tray. The lower tray having a collection region collects any external, foreign materials generated during a chemical mechanical polishing/planarizing process. After the cleaning process, the lower tray can be slid back into the upper tray for use.Type: GrantFiled: January 17, 2020Date of Patent: February 6, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Yu-Feng Han, A. S. Chen
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Publication number: 20210220961Abstract: The present disclosure provides a tray assembly having a dual-structure. The tray assembly comprises an upper tray and a lower tray. The lower tray is capable of being easily disengaged from the upper tray by use of a dovetail joint that allows the lower tray to slidably move relative to the upper tray. The tray assembly also utilizes magnets to reduce the use of mechanical joints. The combination of the magnets together with the dovetail joint provides a quick and efficient way of sliding the lower tray in and out from the upper tray. The lower tray having a collection region collects any external, foreign materials generated during a chemical mechanical polishing/planarizing process. After the cleaning process, the lower tray can be slid back into the upper tray for use.Type: ApplicationFiled: January 17, 2020Publication date: July 22, 2021Inventors: Yu-Feng Han, A.S. Chen
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Patent number: 10661408Abstract: A stopper includes a head portion sized and configured to be coupled to an upper platen of a chemical-mechanical planarization system and a stopper leg sized and configured to direct a flow of liquid slurry applied to an upper planar surface of the upper platen substantially away from a lower surface of the upper platen.Type: GrantFiled: January 29, 2018Date of Patent: May 26, 2020Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Yu-Feng Han, Cheng-Yi Huang, Fang-Chi Chien, Chen-shih Chung, Sheng-Tai Peng
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Patent number: 7569238Abstract: An antitussive agent. A composition for relieving, preventing and/or treating cough includes a sufficient amount of Cynanchi Atrati Radix extract as an active component. The effective Cynanchi Atrati Radix extract is prepared by extracting Cynanchi Atrati Radix with water, ethanol, hexane, ethyl acetate or a combination thereof. The crude extract can be further fractioned by ultrafiltration or reverse phase column.Type: GrantFiled: April 28, 2003Date of Patent: August 4, 2009Assignee: Pharmaceutical Industry Technology and Development CenterInventors: Feng-Nien Ko, Wei-Ja Wang, Cheng-Ko Liu, Pin-Fen Chen, Yu-Feng Han, Mai-Yu Lee
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Patent number: 7223425Abstract: A pharmaceutical composition contains a therapeutically effective amount of an active ingredient, in admixture with a pharmaceutically acceptable carrier or diluent for the active ingredient, in which the active ingredient is i) a polar solvent extract of Polygala, the polar solvent being water or a mixture of water and methanol or ethanol; ii) an aqueous fraction resulting from an extraction of the polar solvent extract with an organic solvent; iii) an organic eluate by introducing the polar solvent extract or the aqueous fraction into a reverse phase chromatography column, and eluting the column with water and an organic solvent; or iv) a filtrate having a molecular mass less than 30000 in the organic eluate.Type: GrantFiled: August 11, 2004Date of Patent: May 29, 2007Assignee: Medical and Pharmaceutical Industry Technology and Development CenterInventors: Feng-Nien Ko, Cheng-Ko Liu, Yu-Feng Han, Pin-Fun Chen
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Patent number: 7179496Abstract: A pharmaceutical composition contains a therapeutically effective amount of an active ingredient, in admixture with a pharmaceutically acceptable carrier or diluent for the active ingredient, in which the active ingredient is i) a polar solvent extract of Polygala, the polar solvent being water or a mixture of water and methanol or ethanol; ii) an aqueous fraction resulting from an extraction of the polar solvent extract with an organic solvent; iii) an organic eluate by introducing the polar solvent extract or the aqueous fraction into a reverse phase chromatography column, and eluting the column with water and an organic solvent; or iv) a filtrate having a molecular mass less than 30000 in the organic eluate.Type: GrantFiled: August 11, 2004Date of Patent: February 20, 2007Assignee: Medical and Pharmaceutical Industry Technology and Development CenterInventors: Feng-Nien Ko, Cheng-Ko Liu, Yu-Feng Han, Pin-Fun Chen
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Patent number: 7175861Abstract: A pharmaceutical composition contains a therapeutically effective amount of an active ingredient, in admixture with a pharmaceutically acceptable carrier or diluent for the active ingredient, in which the active ingredient is i) a polar solvent extract of Polygala, the polar solvent being water or a mixture of water and methanol or ethanol; ii) an aqueous fraction resulting from an extraction of the polar solvent extract with an organic solvent; iii) an organic eluate by introducing the polar solvent extract or the aqueous fraction into a reverse phase chromatography column, and eluting the column with water and an organic solvent; or iv) a filtrate having a molecular mass less than 30000 in the organic eluate.Type: GrantFiled: August 11, 2004Date of Patent: February 13, 2007Assignee: Medical and Pharmaceutical Industry Technology and Development CenterInventors: Feng-Nien Ko, Cheng-Ko Liu, Yu-Feng Han, Pin-Fun Chen
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Patent number: 6911222Abstract: A pharmaceutical composition contains a therapeutically effective amount of an active ingredient, in admixture with a pharmaceutically acceptable carrier or diluent for the active ingredient, in which the active ingredient is i) a polar solvent extract of Polygala, the polar solvent being water or a mixture of water and methanol or ethanol; ii) an aqueous fraction resulting from an extraction of the polar solvent extract with an organic solvent; iii) an organic eluate by introducing the polar solvent extract or the aqueous fraction into a reverse phase chromatography column, and eluting the column with water and an organic solvent; or iv) a filtrate having a molecular mass less than 30000 in the organic eluate.Type: GrantFiled: January 3, 2003Date of Patent: June 28, 2005Assignee: Pharmaceutical Industry Technology and Development CenterInventors: Feng-Nien Ko, Cheng-Ko Liu, Yu-Feng Han, Pin-Fun Chen
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Publication number: 20050008721Abstract: A pharmaceutical composition contains a therapeutically effective amount of an active ingredient, in admixture with a pharmaceutically acceptable carrier or diluent for the active ingredient, in which the active ingredient is i) a polar solvent extract of Polygala, the polar solvent being water or a mixture of water and methanol or ethanol; ii) an aqueous fraction resulting from an extraction of the polar solvent extract with an organic solvent; iii) an organic eluate by introducing the polar solvent extract or the aqueous fraction into a reverse phase chromatography column, and eluting the column with water and an organic solvent; or iv) a filtrate having a molecular mass less than 30000 in the organic eluate.Type: ApplicationFiled: August 11, 2004Publication date: January 13, 2005Applicant: Pharmaceutical Industry Technology and Development CenterInventors: Feng-Nien Ko, Cheng-Ko Liu, Yu-Feng Han, Pin-Fun Chen
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Publication number: 20050008719Abstract: A pharmaceutical composition contains a therapeutically effective amount of an active ingredient, in admixture with a pharmaceutically acceptable carrier or diluent for the active ingredient, in which the active ingredient is i) a polar solvent extract of Polygala, the polar solvent being water or a mixture of water and methanol or ethanol; ii) an aqueous fraction resulting from an extraction of the polar solvent extract with an organic solvent; iii) an organic eluate by introducing the polar solvent extract or the aqueous fraction into a reverse phase chromatography column, and eluting the column with water and an organic solvent; or iv) a filtrate having a molecular mass less than 30000 in the organic eluate.Type: ApplicationFiled: August 11, 2004Publication date: January 13, 2005Applicant: Pharmaceutical Industry Technology and Development CenterInventors: Feng-Nien Ko, Cheng-Ko Liu, Yu-Feng Han, Pin-Fun Chen
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Publication number: 20050008720Abstract: A pharmaceutical composition contains a therapeutically effective amount of an active ingredient, in admixture with a pharmaceutically acceptable carrier or diluent for the active ingredient, in which the active ingredient is i) a polar solvent extract of Polygala, the polar solvent being water or a mixture of water and methanol or ethanol; ii) an aqueous fraction resulting from an extraction of the polar solvent extract with an organic solvent; iii) an organic eluate by introducing the polar solvent extract or the aqueous fraction into a reverse phase chromatography column, and eluting the column with water and an organic solvent; or iv) a filtrate having a molecular mass less than 30000 in the organic eluate.Type: ApplicationFiled: August 11, 2004Publication date: January 13, 2005Applicant: Pharmaceutical Industry Technology and Development CenterInventors: Feng-Nien Ko, Cheng-Ko Liu, Yu-Feng Han, Pin-Fun Chen
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Publication number: 20040213863Abstract: An antitussive agent. A composition for relieving, preventing and/or treating cough includes a sufficient amount of Cynanchi Atrati Radix extract as an active component. The effective Cynanchi Atrati Radix extract is prepared by extracting Cynanchi Atrati Radix with water, ethanol, hexane, ethyl acetate or a combination thereof. The crude extract can be further fractioned by ultrafiltration or reverse phase column.Type: ApplicationFiled: April 28, 2003Publication date: October 28, 2004Inventors: Feng-Nien Ko, Wei-Ja Wang, Cheng-Ko Liu, Pin-Fen Chen, Yu-Feng Han, Mai-Yu Lee
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Publication number: 20030133999Abstract: A pharmaceutical composition contains a therapeutically effective amount of an active ingredient, in admixture with a pharmaceutically acceptable carrier or diluent for the active ingredient, in which the active ingredient is i) a polar solvent extract of Polygala, the polar solvent being water or a mixture of water and methanol or ethanol; ii) an aqueous fraction resulting from an extraction of the polar solvent extract with an organic solvent; iii) an organic eluate by introducing the polar solvent extract or the aqueous fraction into a reverse phase chromatography column, and eluting the column with water and an organic solvent; or iv) a filtrate having a molecular mass less than 30000 in the organic eluate.Type: ApplicationFiled: January 3, 2003Publication date: July 17, 2003Applicant: Pharmaceutical Industry Technology and Development CenterInventors: Feng-Nien Ko, Cheng-Ko Liu, Yu-Feng Han, Pin-Fun Chen