Abstract: An information storage device includes a storage unit, a control unit, an allocation information storage unit, a QoS parameter storage unit, and a monitoring result storage unit. The control unit creates and manages a logical storage area using the storage area of the storage unit when a storage area allocation request is received. The allocation information storage unit stores allocation information related to logical storage areas. The QoS parameter storage unit stores quality requests expected to be satisfied for a communication for using the logical storage area. The control unit monitors the operating state and characteristics of the storage unit and the communication status, and stores the results in the monitoring result storage unit. The control unit derives internal QoS parameters to be set in the information storage device from the information stored in the allocation information storage unit, the QoS parameter storage unit, and the monitoring result storage unit.

Abstract: A breaker includes a fixed metal plate, a moving metal plate, a bimetal, and a heater. The fixed plate includes a fixed contact in a space of an exterior case having an electrically-insulating case and an exterior metal plate. The exterior plate and the fixed plate are arranged opposed to each other, and fixed to the electrically-insulating case. The bimetal has a convex shape, and is arranged between the heater and the moving plate. The electrically-insulating case includes first and second outer walls and protruding from the both ends of the case. A central part of the fixed plate is fixed to the first outer wall, and a part of moving plate is fixed to the second outer wall. The exterior plate closes the opening of the space.

Abstract: A breaker includes a fixed metal plate 4, a moving metal plate 6, a bimetal 8, and a heater 9. The fixed plate 4 includes a fixed contact 5 in space 20 of an exterior case 1 including an electrically-insulating case 2 and an exterior metal plate 3. The exterior plate 3 and the fixed plate 4 are arranged at opposed positions, and fixed to the case 2. The bimetal 8 has a convex shape, and is arranged between the heater 9 and the moving plate 6. The case 2 includes first and second outer walls 11A and 11B protruding from the both ends of the case 2. A central part 4B of the fixed plate 4 is fixed to the first outer wall 11A. A part of moving plate 6 is fixed to the second outer wall 11B. The exterior plate 3 closes the opening of the space 20.