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| Number | Title | Issue Date |
| 8056681 | Stacker crane and weight reduction method for mast of the stacker crane A mast includes two support columns each having nonuniform strength in a height direction. Both of upper and lower end portions of the mast have the highest strength, intermediate portions of the mast have the intermediate strength, and shoulder portions of the mast... | 11/15/2011 |
| 8047755 | Plate material stocker facility The present invention provides a plate material stocker facility with a simplified pallet loading and unloading mechanism. The plate material stocker facility includes a plate material stocker 4 in which pallets 9 each allowing a plate material to be s... | 11/01/2011 |
| 8036771 | Transportation vehicle system and method of controlling transportation vehicle A transportation vehicle measures its own absolute position, and transmits the measured absolute position to a ground controller. The ground controller keeps track of positions of a plurality of transportation vehicles in real time, and sends running instructions to... | 10/11/2011 |
| 8028609 | Work sheet processing system A work sheet processing system enables the effective utilization, of a redundant work sheet corresponding to a material work sheet from which product work sheets have been cut. The work sheet processing system includes a work sheet processing machine that performs a... | 10/04/2011 |
| 7674217 | Machine tool with spindle chuck replacing mechanism The present invention provides a machine tool with a spindle chuck replacing mechanism which is simply configured to enable a reduction in time for work replacement without the need to sense the rotation speed of a spindle chuck or the like. The machine tool include... | 03/09/2010 |
