Patents by Inventor Tomohiro Oyamada
Tomohiro Oyamada 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: 20240110262Abstract: There is provided an Al wiring material which can achieve sufficient bond reliability of bonded parts in a high-temperature environment at the time when a semiconductor device operates. The Al wiring material containing one or more of Pd and Pt so as to satisfy 3?x1a?90 or 10?x1b?250, and 3?(x1a+x1b)?300, where x1a and x1b are respectively a content of Pd [mass ppm] and a content of Pt [mass ppm], with the balance comprising Al, and an average crystal grain diameter on a cross-section perpendicular to a longitudinal direction of the Al wiring material is 3 to 35 ?m.Type: ApplicationFiled: January 31, 2022Publication date: April 4, 2024Inventors: Tomohiro UNO, Yuya SUTO, Tetsuya OYAMADA, Daizo ODA, Yuto KURIHARA, Motoki ETO
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Publication number: 20240105668Abstract: There is provided a novel Al wiring material that achieves both of a suppression of chip damage and a thermal shock resistance. In aspect 1, the Al wiring material includes an Al core material and an Al coating layer formed on a surface of the Al core material, and satisfies 1.2?H1h/H1s where H1h is a Vickers hardness of the Al core material (Hv) and H1s is a Vickers hardness of the Al coating layer (Hv). In aspect 2, the Al wiring material includes an Al core material and an Al coating layer formed on a surface of the Al core material, and satisfies 1.2?H2h/H2s where H2s is a Vickers hardness of the Al core material (Hv) and H2h is a Vickers hardness of the Al coating layer (Hv).Type: ApplicationFiled: January 31, 2022Publication date: March 28, 2024Inventors: Yuto KURIHARA, Daizo ODA, Motoki ETO, Ryo OISHI, Tetsuya OYAMADA, Tomohiro UNO
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Publication number: 20240071978Abstract: To provide an Al bonding wire exhibiting a favorable high-temperature and high-humidity service life in a high-temperature and high-humidity environment required for next-generation vehicle-mounted power devices. The Al bonding wire for semiconductor devices containing equal to or larger than 3 mass ppm and equal to or smaller than 500 mass ppm of one or more of Pd and Pt in total, in which, as a result of measuring a crystal orientation on a cross section parallel to a wire axis direction including a wire axis of the bonding wire, an orientation ratio of a <100> crystal orientation angled at 15 degrees or less to the wire axis direction is equal to or higher than 30% and equal to or lower than 90%.Type: ApplicationFiled: January 31, 2022Publication date: February 29, 2024Inventors: Yuya SUTO, Tomohiro UNO, Tetsuya OYAMADA, Daizo ODA, Motoki ETO, Yuto KURIHARA
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Publication number: 20230350384Abstract: Provided are: a numerical control device with which it is possible to easily perform a cutting process; a control method; and a processing program. The numerical control device comprises: a processing program analysis unit that analyzes commands that a machine tool can perform simultaneously, from one line of the processing program for commanding the machine tool before and after the cutting process; and a simultaneous operation control unit that uses the analyzed commands that can be performed simultaneously, combines the operations that the machine tool can perform simultaneously, and controls the commanded simultaneous operations.Type: ApplicationFiled: May 10, 2021Publication date: November 2, 2023Applicant: FANUC CORPORATIONInventors: Daisuke UENISHI, Tomohiro OYAMADA
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Publication number: 20230256554Abstract: The objective of the present invention is to provide a numerical control device and control method with which it is possible for hole opening to be performed at high speed and with low vibration. This numerical control device for performing hole opening continuously at prescribed intervals in a workpiece, using a machine tool, is provided with: a positioning unit for moving a hole opening tool of the machine tool to a hole opening position of the workpiece, and positioning the hole opening tool; a cutting unit; a retracting unit for retracting the hole opening tool from the workpiece; and a program executing unit for executing a machining program for causing the machine tool to continuously machine the workpiece, by sequentially executing movement axis operation using the same control scheme for the processing performed by the positioning unit, the cutting unit, and the retracting unit.Type: ApplicationFiled: July 2, 2021Publication date: August 17, 2023Applicant: FANUC CORPORATIONInventors: Daisuke UENISHI, Tomohiro OYAMADA
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Publication number: 20230251627Abstract: A numerical value controller includes a storage unit that stores a machining program involving executing a plurality of canned cycles each including a first operation for positioning a drilling position of a workpiece relative to a tool, a second operation for moving the tool from a return point to a hole bottom point, and a third operation for moving the tool from the hole bottom point to the return point; a control unit that controls movement between the tool and the workpiece based on the machining program and that moves the tool along curved paths by starting the second operation before the first operation ends and starting the first operation in a subsequent canned cycle before the third operation ends; a distance calculating unit that calculates a retraction distance; and a curvature calculating unit that reads a positioning command for the drilling position for the subsequent canned cycle.Type: ApplicationFiled: August 27, 2021Publication date: August 10, 2023Applicant: FANUC CORPORATIONInventors: Daisuke UENISHI, Tomohiro OYAMADA
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Publication number: 20230236574Abstract: A numerical value controller includes: a storage unit storing a machining program involving executing canned cycles including a first operation for moving a tool to a return point, a second operation for positioning a drilling position of a workpiece relative to the tool, a third operation for moving the tool from the return point to a hole bottom point, and a fourth operation for moving the tool from the hole bottom point to a terminal point located toward the hole bottom point relative to the return point; a control unit controls relative movement between the tool and the workpiece based on the machining program and moves the tool along curved paths by starting the second operation before the first operation ends and by starting the third operation before the second operation ends; and a distance calculating unit calculates a retraction distance from the workpiece to the return point.Type: ApplicationFiled: August 25, 2021Publication date: July 27, 2023Applicant: FANUC CORPORATIONInventors: Daisuke UENISHI, Tomohiro OYAMADA
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Publication number: 20230236566Abstract: A numerical value controller for a machine tool includes a storage unit storing a machining program for drilling a hole in a workpiece in accordance with relative movement between a tool and workpiece in a depth direction, and a control unit controlling the relative movement between the tool and workpiece based on the machining program and that moves the tool relative to the workpiece in the depth direction from a return point to a hole bottom point. The return point is a position retracted in the depth direction from a workpiece surface where the tool starts to perform drilling. The machining program includes a command for a workpiece height point as a position of the workpiece surface. The control unit moves the tool relative to the workpiece in the depth direction at a relative rate higher than a cutting feed rate from the return point to the height point.Type: ApplicationFiled: August 25, 2021Publication date: July 27, 2023Applicant: FANUC CORPORATIONInventors: Daisuke UENISHI, Tomohiro OYAMADA
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Patent number: 11642748Abstract: In the high-efficiency machining of blade parts according to the present invention, there is no reversal of the operating direction of a rotating shaft, and a high-quality machined surface can be obtained rapidly. A machining program is created for a workpiece such that: when a part having a convex curved surface and a concave curved surface, with a pair of edge portions as a boundary, is removal-machined, a virtual convex curve, the curvature of which is not inverted with respect to the convex curved surface, with the curves of the pair of edges as the tangent line, is set for the concave curved surface; a drive surface, for defining tool orientation without curvature inversion, is created by using the virtual convex curve, the convex curve set on the convex curved surface, and the convex curves set on the pair of edges; and a tool axis direction during removal machining is set on the basis of the normal direction of the drive surface for tool orientation definition.Type: GrantFiled: January 18, 2021Date of Patent: May 9, 2023Assignee: FANUC CORPORATIONInventors: Daisuke Uenishi, Tomohiro Oyamada
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Publication number: 20230051567Abstract: In the high-efficiency machining of blade parts according to the present invention, there is no reversal of the operating direction of a rotating shaft, and a high-quality machined surface can be obtained rapidly. A machining program is created for a workpiece such that: when a part having a convex curved surface and a concave curved surface, with a pair of edge portions as a boundary, is removal-machined, a virtual convex curve, the curvature of which is not inverted with respect to the convex curved surface, with the curves of the pair of edges as the tangent line, is set for the concave curved surface; a drive surface, for defining tool orientation without curvature inversion, is created by using the virtual convex curve, the convex curve set on the convex curved surface, and the convex curves set on the pair of edges; and a tool axis direction during removal machining is set on the basis of the normal direction of the drive surface for tool orientation definition.Type: ApplicationFiled: January 18, 2021Publication date: February 16, 2023Applicant: FANUC CORPORATIONInventors: Daisuke UENISHI, Tomohiro OYAMADA
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Publication number: 20230044441Abstract: The purpose of the present invention is to improve the machined-surface quality of a curved surface of a workpiece without reducing the machining speed when the curved surface is subjected to removal machining. Provided is a workpiece machining method in which a rotating table on which a workpiece is placed and a tool are relatively moved along two linear movement axes orthogonal to each other, the workpiece is rotated about each of a first turning axis and a second turning axis orthogonal to each other by the rotating table, and at least one curved surface of a protruding curved surface and a recessed curved surface is subjected to removal machining.Type: ApplicationFiled: January 18, 2021Publication date: February 9, 2023Applicant: FANUC CORPORATIONInventors: Daisuke UENISHI, Tomohiro OYAMADA
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Patent number: 11504818Abstract: A machine tool for machine processing workpieces by using a tool having a pull stud at a proximal end portion thereof. The machine tool includes a tool magazine having a number of tool holders each of which is capable of attaching and detaching the tool, a spindle which holds the tool at the time of machine processing the workpieces, and a controller which determines whether or not the pull stud is appropriate on the basis of detected data of a visual sensor which is provided inside or outside the machine tool, and which captures images of the pull stud of a tool holder of the tool, or detected data of a sensor which is provided inside the tool magazine, and which measures length, electric resistance, or electric capacity of the pull stud.Type: GrantFiled: January 15, 2020Date of Patent: November 22, 2022Assignee: FANUC CORPORATIONInventors: Tomohiro Oyamada, Rikizou Watanabe
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Patent number: 11471988Abstract: A gripping device is provided in a turret-type tool magazine of a machine tool and grips a tool or a tool holder that holds the tool. The gripping device includes: a pair of arms configured to grip the tool or the tool holder by pinching the tool or the tool holder between the arms, a main body part configured to support the pair of arms so that each of the paired arms swings in the pinching directions to pinch the tool or the tool holder between the arms; and an angle detector configured to detect a physical quantity indicating a swing angle of the arm.Type: GrantFiled: November 15, 2019Date of Patent: October 18, 2022Assignee: FANUC CORPORATIONInventor: Tomohiro Oyamada
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Publication number: 20200293005Abstract: A machine tool according to the present invention includes: a turret capable of holding a plurality of tools; a spindle that selectively holds one of the plurality of tools held by the turret; a control unit that controls the operation of the turret and the spindle in accordance with a control parameter; a weight acquisition unit that, every time one tool is attached to the turret, acquires a weight of the attached one tool; and a weight setting unit that sets the weight acquired by the weight acquisition unit or an index associated with said weight in the control unit in association with the attached one tool, wherein the control unit sets the control parameter on the basis of the weights of the individual tools, which are set by the weight setting unit.Type: ApplicationFiled: February 10, 2020Publication date: September 17, 2020Applicant: Fanuc CorporationInventors: Tomohiro OYAMADA, Rikizou WATANABE
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Publication number: 20200269372Abstract: A machine tool for machine processing workpieces by using a tool having a pull stud at a proximal end portion thereof. The machine tool includes a tool magazine having a number of tool holders each of which is capable of attaching and detaching the tool, a spindle which holds the tool at the time of machine processing the workpieces, and a controller which determines whether or not the pull stud is appropriate on the basis of detected data of a visual sensor which is provided inside or outside the machine tool, and which captures images of the pull stud of a tool holder of the tool, or detected data of a sensor which is provided inside the tool magazine, and which measures length, electric resistance, or electric capacity of the pull stud.Type: ApplicationFiled: January 15, 2020Publication date: August 27, 2020Applicant: FANUC CORPORATIONInventors: Tomohiro OYAMADA, Rikizou WATANABE
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Publication number: 20200156197Abstract: A gripping device is provided in a turret-type tool magazine of a machine tool and grips a tool or a tool holder that holds the tool. The gripping device includes: a pair of arms configured to grip the tool or the tool holder by pinching the tool or the tool holder between the arms, a main body part configured to support the pair of arms so that each of the paired arms swings in the pinching directions to pinch the tool or the tool holder between the arms; and an angle detector configured to detect a physical quantity indicating a swing angle of the arm.Type: ApplicationFiled: November 15, 2019Publication date: May 21, 2020Applicant: FANUC CORPORATIONInventor: Tomohiro Oyamada