In a MOSFET, after an element region is formed, a wiring layer is formed subsequently to a barrier metal layer, and hydrogen annealing is performed. The electrophotographic image forming apparatus includes an urging unit for urging and moving the cartridge tray toward a front of a main assembly of the apparatus and a clocking member for locking the cartridge tray in a proper position so that the cartridge tray is returned back to an outside position of the apparatus when the cartridge tray is pushed to the proper position. The invention also relates to methods of making the described industrial gear oil compositions and methods of using the same. The device moves the launch clutch to the engaged condition when in the first position and does not move the launch clutch to the engaged condition when in the second position. The cushion positioned over the partial grooves is elastically pressed onto the paper-separating roller. The SEM selects the foreign matters closer to the center of the sample at first and then the foreign matters spirally from the center of the sample to the outer periphery.