Patents by Inventor Chang-Il Lee
Chang-Il 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: 8399375Abstract: The invention relates to a supported metallocene catalyst composition and a process for the preparation of polyolefin using the same. A supported metallocene catalyst composition according to the invention is prepared by bringing a compound of a group IV transition metal into contact with an inorganic or organic porous carrier treated with an ionic compound. Advantages of a supported metallocene catalyst composition of the invention include an increase in the catalyst activity during polymerization of slurry and an olefin compound in the vapor phase even at a low content of metallocene metal components within the carrier, and an improvement in solving process problems such as fouling, sheeting, plugging or the like.Type: GrantFiled: March 26, 2009Date of Patent: March 19, 2013Assignees: SK Global Chemical Co., Ltd., SK Innovation Co., Ltd.Inventors: Seungyeol Han, Myungahn Ok, Young-Soo Ko, Chang-il Lee
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Publication number: 20110105705Abstract: The invention relates to a metallocene supported catalyst composition and a process for the preparation of polyolefin using the same. A metallocene supported catalyst composition according to the invention is prepared by bringing a compound of a group IV transition metal into contact with an inorganic or organic porous carrier treated with an ionic compound. Advantages of a metallocene supported catalyst composition of the invention include an increase in the catalyst activity during polymerization of slurry and an olefin compound in the vapor phase even at a low content of metallocene metal components within the carrier, and an improvement in solving process problems such as fouling, sheeting, plugging or the like.Type: ApplicationFiled: March 26, 2009Publication date: May 5, 2011Applicant: SK ENERGY CO., LTD.Inventors: Seungyeol Han, Myungahn Ok, Young-Soo Ko, Chang-il Lee
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Patent number: 7925318Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: GrantFiled: January 27, 2010Date of Patent: April 12, 2011Assignee: LG Electronics Inc.Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Publication number: 20100130272Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: ApplicationFiled: January 27, 2010Publication date: May 27, 2010Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Patent number: 7660614Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: GrantFiled: November 21, 2007Date of Patent: February 9, 2010Assignee: LG Electronics Inc.Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Patent number: 7363066Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: GrantFiled: February 24, 2004Date of Patent: April 22, 2008Assignee: LG Electronics Inc.Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Patent number: 7155118Abstract: The invention relates to a portable terminal, which can include a main body portion, a display portion provided with a display screen and coupled to an end portion of the main body portion to be folded or unfolded with respect to the main body portion. A camera device that can provide an image of an object to the display screen, which can serve as a camera viewfinder, and a cooperating mechanism that can control the camera device to change its sight line cooperatively to the movement of one of the main body portion and the display portion can be included in the portable terminal.Type: GrantFiled: February 20, 2004Date of Patent: December 26, 2006Assignee: LG Electronics Inc.Inventor: Chang-Il Lee
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Publication number: 20050009581Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: ApplicationFiled: February 24, 2004Publication date: January 13, 2005Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Patent number: 6842333Abstract: A portable electronic device includes a main board fixed inside a case that mounts various circuit parts, an LCD module positioned at an upper side of the main board that has an LCD, an internal frame and a touch screen and an LCD module connecting unit installed for electronic connection between the main board and the LCD module when the main board and the LCD module are mutually combined or assembled. Since the main board connector is installed at the main board and the LCD connector is mounted at one side of the LCD module, when the LCD module is assembled at the main board, the LCD connector and the main board connector are mutually connected. Thus, no electric connection work is necessary, and thus, its assembling is simple and assembly process can be shortened. Further, the LCD module connecting unit can directly connect the main board and the LCD module through a support member therebetween that can include a heat sink for the main board.Type: GrantFiled: September 9, 2002Date of Patent: January 11, 2005Assignee: LG Electronics, Inc.Inventors: Chang-Il Lee, Byeong-Yun Lee, Jong-Seo Park, Yun-Tae Kim
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Publication number: 20040257752Abstract: The invention relates to a portable terminal, which can include a main body portion, a display portion provided with a display screen and coupled to an end portion of the main body portion to be folded or unfolded with respect to the main body portion. A camera device that can provide an image of an object to the display screen, which can serve as a camera viewfinder, and a cooperating mechanism that can control the camera device to change its sight line cooperatively to the movement of one of the main body portion and the display portion can be included in the portable terminal.Type: ApplicationFiled: February 20, 2004Publication date: December 23, 2004Applicant: LG Electronics Inc.Inventor: Chang-Il Lee
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Publication number: 20030048598Abstract: A portable electronic device includes a main board fixed inside a case that mounts various circuit parts, an LCD module positioned at an upper side of the main board that has an LCD, an internal frame and a touch screen and an LCD module connecting unit installed for electronic connection between the main board and the LCD module when the main board and the LCD module are mutually combined or assembled. Since the main board connector is installed at the main board and the LCD connector is mounted at one side of the LCD module, when the LCD module is assembled at the main board, the LCD connector and the main board connector are mutually connected. Thus, no electric connection work is necessary, and thus, its assembling is simple and assembly process can be shortened. Further, the LCD module connecting unit can directly connect the main board and the LCD module through a support member therebetween that can include a heat sink for the main board.Type: ApplicationFiled: September 9, 2002Publication date: March 13, 2003Applicant: LG ELECTRONICS INC.Inventors: Chang-Il Lee, Byeong-Yun Lee, Jong-Seo Park, Yun-Tae Kim
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Patent number: D772124Type: GrantFiled: December 18, 2015Date of Patent: November 22, 2016Assignee: FCA US LLCInventors: Inwoong Lee, Chang-il Lee, Christopher A. Benjamin, Klaus Busse
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Patent number: D793931Type: GrantFiled: January 11, 2016Date of Patent: August 8, 2017Assignee: FCA US LLCInventors: Inwoong Lee, Chang-il Lee, Christopher A. Benjamin, Klaus Busse
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Patent number: D1071267Type: GrantFiled: August 25, 2022Date of Patent: April 15, 2025Assignee: Ford Global Technologies, LLCInventors: Joel Piaskowski, Doyle Letson, Christopher Walter, Chang-il Lee