Patents by Inventor Kane-Hee LEE
Kane-Hee 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).
-
Patent number: 10464145Abstract: The technical objective of the present invention is to provide a cutting insert that has an improved fastening property with a cutting tool, thereby preventing reduction of the service life. To this end, the cutting insert according to the present invention has three corners along the circumference thereof; an upper main cutting edge, which is formed on the edge between the upper surface and the first side surface, and an upper sub cutting edge, which is formed on the edge between the upper surface and the second side surface, are continuously disposed between respective corners; the lower surface has the same shape as that of the upper surface; and the angle defined between the upper main cutting edge and the upper sub cutting edge, which are placed on both sides with reference to each corner, is larger than or equal to 85° and is smaller than 90°.Type: GrantFiled: May 27, 2016Date of Patent: November 5, 2019Assignee: KORLOY INC.Inventors: Nam-seon Lee, Ki-chan Nam, Kane-hee Lee, Hyo-san Kim, Young-heum Kim
-
Patent number: 10279401Abstract: Provided are a cutting insert and a tool holder on which the cutting insert is provided. The cutting insert includes a circular upper surface, a circular lower surface, a cylindrical lateral surface for connecting the upper surface and the lower surface, an upper cutting edge formed between the upper surface and the lateral surface, a lower cutting edge formed between the lower surface and the lateral surface, and a plurality of rotation-preventing parts provided at the lateral surface so as to prevent the cutting insert from rotating with respect to the tool holder. Each rotation preventing part includes an inner curved surface recessed toward the center of the lateral surface and convexly rounded so as to form concentric circles in conjunction with the lateral surface, and a stepped rotation-preventing surface parallel to the axial direction of the insert and connecting the inner curved surface and the lateral surface.Type: GrantFiled: July 21, 2015Date of Patent: May 7, 2019Assignee: KORLOY INC.Inventors: Sang-Yong Lee, Ki-Chan Nam, Nam-Sun Lee, Kane-Hee Lee, Sun-Yong Ahn, Young-Heum Kim
-
Patent number: 10150170Abstract: Provided is an insert for being mounted on a tool holder. The insert includes three substantially right-angled corners along a perimeter, a main cutting edge, a sub cutting edge, and a flat lower surface. A clearance angle of a second end main side surface forms an obtuse angle with respect to a lower surface, and a clearance angle of a second end sub side surface forms an obtuse angle with respect to the lower surface. A clearance angle of a first end main side surface forms a right angle with respect to the lower surface, and a clearance angle of a first end sub side surface forms a right angle with respect to the lower surface.Type: GrantFiled: April 15, 2015Date of Patent: December 11, 2018Assignee: KORLOY INC.Inventors: Ki-Chan Nam, Kane-Hee Lee, Young-Heum Kim
-
Patent number: 10112241Abstract: A technical object of the present disclosure is to provide an insert, which can maintain rigidity thereof regardless of a clearance angle of a clearance surface that forms a circular cutting edge. To this end, the insert according to the present disclosure includes a circular upper surface, a circular lower surface, and a clearance surface portion connecting the upper surface and the lower surface. The clearance surface portion is divided into first and second clearance surfaces along a circumference thereof, by a first wave line that forms a waveform of valleys facing the lower surface and mounts facing the upper surface.Type: GrantFiled: November 7, 2014Date of Patent: October 30, 2018Assignee: KORLOY INC.Inventors: Sang-Yong Lee, Ki-Chan Nam, Nam-Sun Lee, Kane-Hee Lee, Sun-Yong Ahn, Young-Heum Kim
-
Patent number: 10105772Abstract: A technical object is to provide an insert capable of preventing escaping of the insert from an assembly of the insert and a tool holder. To this purpose, the insert includes an insert body, and a holder fastening portion provided in the insert body to be fastened to the tool holder, in which the holder fastening portion includes one or more fastening holes formed through the insert body from an upper surface to a lower surface, and one or more locking recesses formed by being recessed in a lower surface periphery of the insert body.Type: GrantFiled: November 7, 2014Date of Patent: October 23, 2018Assignee: KORLOY INC.Inventors: Sang-Yong Lee, Nam-Sun Lee, Ki-Chan Nam, Kane-Hee Lee, Sun-Yong Ahn
-
Patent number: 10086447Abstract: A cutting insert and a cutting tool having same are provided. The cutting insert includes an upper surface, a lower surface having a flat surface, side surfaces connecting to each of the upper surface and the lower surface, and cutting edges being formed by the upper surface and the side surfaces. A first cutting edge among the cutting edges is inclined downward. A major side surface among the side surfaces comprises a first major side surface connected to the upper surface so as to constitute the first cutting edge, and a second major side surface connected to the first major side surface and the lower surface. The first major side surface has a reversely positive surface, and the second major side surface has a reversely positive surface or a negative surface, and a minor side surface among the side surfaces has a positive surface or a negative surface.Type: GrantFiled: April 29, 2015Date of Patent: October 2, 2018Assignee: KORLOY INC.Inventors: Ki-Chan Nam, Young-Heum Kim, Kane-Hee Lee, Hyo-San Kim
-
Publication number: 20180200808Abstract: The technical objective of the present invention is to provide a cutting insert that has an improved fastening property with a cutting tool, thereby preventing reduction of the service life. To this end, the cutting insert according to the present invention has three corners along the circumference thereof; an upper main cutting edge, which is formed on the edge between the upper surface and the first side surface, and an upper sub cutting edge, which is formed on the edge between the upper surface and the second side surface, are continuously disposed between respective corners; the lower surface has the same shape as that of the upper surface; and the angle defined between the upper main cutting edge and the upper sub cutting edge, which are placed on both sides with reference to each corner, is larger than or equal to 85° and is smaller than 90°.Type: ApplicationFiled: May 27, 2016Publication date: July 19, 2018Applicant: KORLOY INC.Inventors: Nam-seon LEE, Ki-chan NAM, Kane-hee LEE, Hyo-san KIM, Young-heum KIM
-
Publication number: 20170259356Abstract: Provided are a cutting insert and a tool holder on which the cutting insert is provided. The cutting insert includes a circular upper surface, a circular lower surface, a cylindrical lateral surface for connecting the upper surface and the lower surface, an upper cutting edge formed between the upper surface and the lateral surface, a lower cutting edge formed between the lower surface and the lateral surface, and a plurality of rotation-preventing parts provided at the lateral surface so as to prevent the cutting insert from rotating with respect to the tool holder. Each rotation preventing part includes an inner curved surface recessed toward the center of the lateral surface and convexly rounded so as to form concentric circles in conjunction with the lateral surface, and a stepped rotation-preventing surface parallel to the axial direction of the insert and connecting the inner curved surface and the lateral surface.Type: ApplicationFiled: July 21, 2015Publication date: September 14, 2017Applicant: KORLOY INC.Inventors: Sang-Yong LEE, Ki-Chan NAM, Nam-Sun LEE, Kane-Hee LEE, Sun-Yong AHN, Young-Heum KIM
-
Publication number: 20170157684Abstract: A cutting insert and a cutting tool having same are provided. The cutting insert includes an upper surface, a lower surface having a flat surface, side surfaces connecting to each of the upper surface and the lower surface, and cutting edges being formed by the upper surface and the side surfaces. A first cutting edge among the cutting edges is inclined downward. A major side surface among the side surfaces comprises a first major side surface connected to the upper surface so as to constitute the first cutting edge, and a second major side surface connected to the first major side surface and the lower surface. The first major side surface has a reversely positive surface, and the second major side surface has a reversely positive surface or a negative surface, and a minor side surface among the side surfaces has a positive surface or a negative surface.Type: ApplicationFiled: April 29, 2015Publication date: June 8, 2017Applicant: KORLOY INC.Inventors: Ki-Chan NAM, Young-Heum KIM, Kane-Hee LEE, Hyo-San KIM
-
Publication number: 20170113286Abstract: An insert in which a cutting edge is formed only between an upper surface and a side surface. The insert comprises: three or more corners along a perimeter; a main cutting edge formed on an edge between an upper surface and a main side surface, and a sub cutting edge formed on an edge between the upper surface and a sub side surface, wherein the main cutting edge and the sub cutting edge are placed in succession between the corners; and a flat lower surface. The main cutting edge forms an inclination angle such that a height decreases gradually in a direction toward the sub cutting edge. The main side surface is formed by a first end main side surface and a second end main side surface. The sub side surface is formed by a first end sub side surface and a second end sub side surface.Type: ApplicationFiled: April 15, 2015Publication date: April 27, 2017Applicant: KORLOY INC.Inventors: Ki-Chan NAM, Kane-Hee LEE, Young-Heum KIM
-
Publication number: 20160288225Abstract: A technical object is to provide an insert capable of preventing escaping of the insert from an assembly of the insert and a tool holder. To this purpose, the insert includes an insert body, and a holder fastening portion provided in the insert body to be fastened to the tool holder, in which the holder fastening portion includes one or more fastening holes formed through the insert body from an upper surface to a lower surface, and one or more locking holes formed by being recessed in a lower surface periphery of the insert body.Type: ApplicationFiled: November 7, 2014Publication date: October 6, 2016Applicant: KORLOY INC.Inventors: Sang-Yong LEE, Nam-Sun LEE, Ki-Chan NAM, Kane-Hee LEE, Sun-Yong AHN
-
Publication number: 20160271707Abstract: A technical object of the present disclosure is to provide an insert, which can maintain rigidity thereof regardless of a clearance angle of a clearance surface that forms a circular cutting edge. To this end, the insert according to the present disclosure includes a circular upper surface, a circular lower surface, and a clearance surface portion connecting the upper surface and the lower surface. The clearance surface portion is divided into first and second clearance surfaces along a circumference thereof, by a first wave line that forms a waveform of valleys facing the lower surface and mounts facing the upper surface.Type: ApplicationFiled: November 7, 2014Publication date: September 22, 2016Applicant: KORLOY INC.Inventors: Sang-Yong LEE, Ki-Chan NAM, Nam-Sun LEE, Kane-Hee LEE, Sun-Yong AHN, Young-Heum KIM