Abstract: A seat cushion is formed integrally by a body pad portion, an outer peripheral edge portion, and a connection portion. The outer peripheral edge portion protrudes toward a floor panel from the outer peripheral edge portion in a plan view and contacts a floor panel at its lower face. The connection portion is provided to protrude toward the floor panel at a portion which is separated from a front-side part of the outer peripheral edge portion and a rear-side part of the outer peripheral edge portion, respectively. The connection portion connects the floor panel and the body pad portion. A portion between the front-side part and the rear-side part of the outer peripheral edge portion in a vehicle longitudinal direction is a separation portion where a lower face of the seat cushion faces an upper face of the floor panel with a gap.

Abstract: Some aspects of the invention include a trench gate structure including a p base layer, an n+ emitter region, a trench, a gate oxide film, and a doped polysilicon gate electrode is provided in an active region. A p-type extension region formed by extending the p base layer to an edge termination structure region can be provided in the circumference of a plurality of trenches. One or more annular outer trenches which are formed at the same time as the plurality of trenches are provided in the p-type extension region. The annular outer trenches can surround all of the trenches. A second gap between the annular outer trench and the outermost trench or between adjacent annular outer trenches is less than a first gap between adjacent trenches.

Abstract: Some aspects of the invention include a trench gate structure including a p base layer, an n+ emitter region, a trench, a gate oxide film, and a doped polysilicon gate electrode is provided in an active region. A p-type extension region formed by extending the p base layer to an edge termination structure region can be provided in the circumference of a plurality of trenches. One or more annular outer trenches which are formed at the same time as the plurality of trenches are provided in the p-type extension region. The annular outer trenches can surround all of the trenches. A second gap between the annular outer trench and the outermost trench or between adjacent annular outer trenches is less than a first gap between adjacent trenches.