Abstract: A nonvolatile semiconductor memory device and its writing method for reducing a writing rate variation without changing a voltage condition applied for each memory cell in writing operation is provided. The device comprises a memory cell array configuration where each drain of the memory cells on the same column is connected to a first bit line via a second bit line and a bit line contact, and the shortest distance from each drain of the memory cells to the bit line contact varies according to a location of the memory cell in the column direction. The method includes a writing operation carried out sequentially from the nearest memory cell to the bit line contact, upon writing continuously so that the memory cell current becomes small for all or some of the memory cells on the same column between the two adjacent bit line contacts in the column direction.

Abstract: A nonvolatile semiconductor memory device and its writing method for reducing a writing rate variation without changing a voltage condition applied for each memory cell in writing operation is provided. The device comprises a memory cell array configuration where each drain of the memory cells on the same column is connected to a first bit line via a second bit line and a bit line contact, and the shortest distance from each drain of the memory cells to the bit line contact varies according to a location of the memory cell in the column direction. The method includes a writing operation carried out sequentially from the nearest memory cell to the bit line contact, upon writing continuously so that the memory cell current becomes small for all or some of the memory cells on the same column between the two adjacent bit line contacts in the column direction.

Abstract: A seat slide device for automotive vehicles including a lower rail to be fixed to a floor panel of an automotive vehicle, an upper rail slidably fitted to the lower rail, a lock plate capable of locking, at a desired position, a sliding movement of the upper rail in which the lock plate is pivotally supported by the upper rail, and a seat bracket for fixing a seat cushion which is secured to the upper rail. The lower rail includes, when viewed in a direction of an end face thereof, two side wall portions bent upwardly from two sides of a bottom wall portion, top wall portions bent inwardly in mutually opposing directions like a fishing hook from upper ends of the side wall portions, and vertically-downwardly extending wall portions. The upper rail includes a pair of generally L-shaped plates each of which includes a horizontal wall portion which is bent like a fishing hook from a lower end portion of a vertical wall portion and a raised wall portion.

Abstract: A removable folding seat is equipped with a first locking member to lock the front lower portion of a seat frame removably to a floor, a second locking member to lock the rear lower portion of the seat frame removably to the floor, and a third locking member to hold the seat in a folding position. The first and third locking members are simultaneously driven by a first lever. The second and third locking members are driven by the common second lever. When the seat is in a seating position, the second lever is allowed to drive the second locking member and inhibited from driving the third locking member. Also, when the seat is in the folding position, the second lever is inhibited from driving the second locking member and allowed to drive the third locking member.