Abstract: A seat heater is installed between a seat pad that is a member supporting a load from a seated person sitting on a seat and has a plurality of ventilation holes through which the air generated by a blower flows is formed on a surface on a side of the seated person and a covering that covers a surface of the seat pad and has breathability. The seat heater includes a thin plate-like base material having voids through which air passes, and a heating wire fixed to the base material. A plurality of slits separate from the voids are formed in the base material.

Abstract: A container box for use in a communication apparatus. The container box has a container case defining an internal space; partitions connected to the container case for partitioning the internal space to have at least two accommodating chambers; and a container cover corresponding to each of the at least two accommodating chambers. Each cover is connected to the container case for independently closing and opening the at least two accommodating chambers. Wherein the at least two accommodating chambers each have differing degrees of waterproof level.

Abstract: In an electronic unit which comprises a heat source, is supported in a casing, and should be kept below an allowable temperature, a movable heat sink is brought into thermal contact with the heat source and an external heat sink of the casing. Preferably, the movable heat sink is movable into and out of the thermal contact with the heat source and is slidably guided by a guide member of the casing. More preferably, a resilient thermal conductive member is interposed between the heat source and the movable heat sink.

Abstract: An attaching arrangement for attaching, to a communications apparatus container box, an optical cable case which includes a case body for accommodating an optical cable and a case end portion attached to the case body. The attaching arrangement includes: a first rotary hinge having a first rotary hinge axis for rotatably attaching the case end portion to the container box around the first rotary hinge axis; and a second rotary hinge having a second rotary hinge axis perpendicular to the first rotary hinge axis for rotatably attaching the case end portion to the container box around the second rotary hinge axis. In a preferred implementation, the attaching arrangement further includes: a slide rail slidably attached to an inner surface of the container box along a direction parallel to the second rotary hinge axis so that the slide rail is slidable from an inside of the container box to an outside of the container box and from the outside of the container box to the inside of the container box.