Abstract: A removal determination device that accurately determines a removal of an exhaust gas purification device from an exhaust pipe. The removal determination device comprises: an input temperature sensor detecting a temperature at an upstream side of casing; an output temperature sensor detecting a temperature at a downstream side of the casing; an engine stop time collector measuring a time period from an inactivation of an engine to a startup of the engine; and a determiner determining a presence of the exhaust gas purifying device based on the input temperature and the output temperature, in a case that the time period is equal to or longer than a predetermined time.

Abstract: The present invention relates to a resin molding compound for sealing electronic parts.In general, electronic parts are sealed in ceramic packages or synthetic resin molding compounds in order to protect them from an external circumstance in the use thereof.In many cases, materials consisting of synthetic resins and inorganic fillers mainly comprising silicon oxide have been used as sealing materials for synthetic resin molding compounds.However, a defect has occurred in that since an infinitesimal quantity of radioactive elements such as uranium and thorium is contained in inorganic fillers, a memory element in electronic parts produces misactions by alpha-rays radiated from radioactive elements according to circumstances and thereby the fidelity of electronic parts is greatly influenced.