Abstract: To provide a joint structure for vehicle body members, which can effectively accommodate distortion due to joining of dissimilar metals, a joining surface of an aluminum roof panel and a joining surface of a side roof rail made of steel are joined by non-piercing rivets, with an electrically insulating structural adhesive being interposed between the joining surfaces, and a bead extending along the joining surfaces is formed in the aluminum roof panel.

Abstract: To provide a joint structure for vehicle body members, which can effectively accommodate distortion due to joining of dissimilar metals, a joining surface of an aluminum roof panel and a joining surface of a side roof rail made of steel are joined by non-piercing rivets, with an electrically insulating structural adhesive being interposed between the joining surfaces, and a bead extending along the joining surfaces is formed in the aluminum roof panel.

Abstract: A switching device equipped with a semiconductor memory element in which the semiconductor memory element includes at least one junction region provided on a semiconductor base plate, a thin insulating film through which carriers can pass and an insulating film having a trap level, said two insulating films being disposed on the surface of said semiconductor base plate in stacked layer relationship, thereby providing a memory function. The present device is provided with this semiconductor memory element, a power supply for controlling the semiconductor memory element and means for turning on or off the controlling power supply, thus accomplishing a touch-switching device of high impedance and ensuring its operations with inexpensive cost.