Abstract: Disclosed is a key management system including plural terminal devices and a server. Each of the terminal devices includes: authentication means for authenticating a user and acquiring user information; delivery key registration means for registering a delivery key linked to the user information based on corresponding information, transmitted from the server, between the user information and the delivery key; encryption key receiving means for receiving an encryption key using the delivery key. The server includes terminal information storage means for storing the terminal identification information, user information on the user utilizing the terminal device and the delivery key, wherein the terminal identification information, the user information and the delivery key are linked to each other; and encryption key delivering means for transmitting the encryption key using the delivery key linked to the user information on the user performing secret communication.

Abstract: Disclosed is a key management system including plural terminal devices and a server. Each of the terminal devices includes: authentication means for authenticating a user and acquiring user information; delivery key registration means for registering a delivery key linked to the user information based on corresponding information, transmitted from the server, between the user information and the delivery key; encryption key receiving means for receiving an encryption key using the delivery key. The server includes terminal information storage means for storing the terminal identification information, user information on the user utilizing the terminal device and the delivery key, wherein the terminal identification information, the user information and the delivery key are linked to each other; and encryption key delivering means for transmitting the encryption key using the delivery key linked to the user information on the user performing secret communication.

Abstract: A clean assembling module device that achieves cleanliness of a work area where assembling, processing, transportation, etc. of a work item are performed and that can be downsized. The invention also includes a production system, an industrial robot, and a pollution spread prevention system that are formed with the device. A clean assembling module device is provided with clean air generation means on the top of the device and is formed so as to have a work area, a clean air retaining/exhausting area and a mechanism section area, in that order from the top side of the device. The outer periphery of the work area is shielded by a clean area shielding wall. Fluid resistance between the work area and the clean air retaining/exhausting area is controlled by a partition wall having small holes. Air came through the work area and the clean air retaining/exhausting area is exhausted by an air exhausting fan to outside the device.

Abstract: A cleansing system for automatically cleansing a workpiece through cleansing tanks and drying tanks in steps to process and assemble the workpiece, an ultrasonic cleansing apparatus, a vacuum drying apparatus, a cleansing apparatus, a cleansing tank, a drying tank and a production system. For example, a descending air current with a sufficient wind velocity/air capacity is obtained, a cleansing time is reduced and unevenness in cleansing of the workpiece is suppressed without bringing contaminations in a preceding tank into a following tank. The present invention has a carriage device (21) which carries a workpiece (2) to a predetermined position, a plurality of workpiece processing portions (23) arranged around the carriage device (21) in a radial pattern, a drive portion which drives the carriage device (21), a workpiece supply portion (25) which supplies the workpiece (2), and a workpiece discharge portion (26) which discharges the workpiece (2).