| NETUREN CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120129006 | WELDING STRUCTURAL PART AND WELDING METHOD OF THE SAME - A welding structural part | 05-24-2012 |
| 20120125919 | INDUCTION HARDENING APPARATUS, INDUCTION HARDENING METHOD, INDUCTION HEATING COIL, HEAT TREATMENT APPARATUS, AND HEAT TREATMENT METHOD - According to an embodiment, an induction heating coil includes a heating conductor portion which is formed of a conductor member and has a zigzag shape in which a bent portion opened to one side in a first direction and a bent portion opened to the other side in the first direction are alternately continuously arranged in opposite directions along a second direction crossing the first direction. | 05-24-2012 |
| 20120118440 | HIGH-STRENGTH AND HIGH-DUCTILITY DIE-QUENCHED PARTS AND METHOD OF MANUFACTURING THE SAME - A high-strength die-quenched part | 05-17-2012 |
| 20120103120 | Hollow Rack and Hollow Rack Manufacturing Method - The one end side portion is nipped by a jig including a jig member having a pair of convex portions which are to be fitted to a depressions in contact with a tooth side face and a inclined portion and positioning a bar and a jig member which is to be clamped/opened with respect to the jig member. A die having an inside diameter smaller than the diameter of the outer periphery is pressed onto the outer periphery of the end portion of the cylindrical end side portion projected from the jig up to a press-in depth determined preliminarily based on the rack, so as to reduce the diameter of the end portion. | 05-03-2012 |
| 20120102739 | Hollow Rack End Diameter Reducing Method - The one end side portion is nipped by a jig including a jig member having a pair of convex portions which are to be fitted to a depressions in contact with a tooth side face and a inclined portion and positioning a bar and a jig member which is to be clamped/opened with respect to the jig member. A die having an inside diameter smaller than the diameter of the outer periphery is pressed onto the outer periphery of the end portion of the cylindrical end side portion projected from the jig up to a press-in depth determined preliminarily based on the rack, so as to reduce the diameter of the end portion. | 05-03-2012 |
| 20120097663 | INDUCTION HARDENING CONTROL SYSTEM - The present invention includes: a hardening control unit ( | 04-26-2012 |
| 20110303655 | WELDING EQUIPMENT FOR METALLIC MATERIALS AND METHOD FOR WELDING METALLIC MATERIALS - A welding equipment for metallic materials capable of performing heat treatment such as tempering based on partial heating in spot welding is provided. The welding equipment | 12-15-2011 |
| 20110132060 | Enlargement Processing Method for Workpiece - A workpiece enlarging method is provided, by which an enlarged portion can stably be formed on a portion of a workpiece such as a shaft member, and a drive force required to form the enlarged portion can be reduced. The workpiece enlarging method forms the enlarged portion on the workpiece (W) by applying, with respect to the workpiece (W), alternating shear energy in a transverse direction thereof so as to suppress deformation of the workpiece (W) within an elastic limit while applying compression energy that produces compressive stress equal to or greater than an initial yield strength to increase internal energy of the workpiece (W), thereby decomposing a portion of the increased internal energy by the alternating shear energy and deforming and enlarging the enlargement intended area of the workpiece (W) with the assistance of the decomposed energy obtained by the decomposition. | 06-09-2011 |
| 20110017368 | Steel Material, Process of Fabricating Steel Material, and Apparatus of Fabricating Steel Material - According to one aspect of the present invention, there is provided a process of fabricating a steel material by performing a heat treatment to a steel material having high strength, in order to reduce hardness at one part of the steel material to less than hardness at other parts of the steel material, wherein the heat treatment comprises a heating step in which a portion having a certain depth from a surface of the steel material is rapidly heated by induction heating or direct energization heating, and a cooling step in which the steel material, which has been subject to the heating step, is rapidly cooled a predetermined time after the heating step, and a heating temperature in the heating step is Ac1 transforming point or more. | 01-27-2011 |
| 20100258553 | INDUCTION HARDENING MONITORING APPARATUS - An induction hardening monitoring apparatus ( | 10-14-2010 |
| 20100051611 | METHOD AND DEVICE FOR INDUCTION HEATING AND HARDENING APPARATUS - A hardening apparatus ( | 03-04-2010 |
