Abstract: An information management system includes: a mobile communication terminal capable of obtaining location information; and a medical institution provided with a regional medical data bank system and a transmitter. The mobile communication terminal transmits a space-time tag and a terminal ID to the system. The space-time tag is constituted of time information and location information. A space-time ID information processing unit of the system generates a space-time ID in a folder for each user based on a plurality of space-time tags and stores it in space-time ID information DB. A terminal device of the medical institution transmits the location information of the mobile communication terminal and the time information to the system. A verification processing unit verifies information from the mobile communication terminal against information from a utilization terminal and transmits the information to the utilization terminal when a request for transmission of the information is valid.

Abstract: An information management system includes: a mobile communication terminal capable of obtaining location information; and a medical institution provided with a regional medical data bank system and a transmitter. The mobile communication terminal transmits a space-time tag and a terminal ID to the system. The space-time tag is constituted of time information and location information. A space-time ID information processing unit of the system generates a space-time ID in a folder for each user based on a plurality of space-time tags and stores it in space-time ID information DB. A terminal device of the medical institution transmits the location information of the mobile communication terminal and the time information to the system. A verification processing unit verifies information from the mobile communication terminal against information from a utilization terminal and transmits the information to the utilization terminal when a request for transmission of the information is valid.

Abstract: A process for producing an ethylene-.alpha.-olefin copolymer which includes subjecting ethylene to an oligomerization reaction in the presence of an oligomerization catalyst to convert a part of the ethylene to .alpha.-olefin, and thereby obtaining a reaction solution, a reaction gas or a mixture of the reaction solution and the reaction gas containing .alpha.-olefin and unreacted ethylene; distilling the reaction solution, the reaction gas or the mixture of the reaction solution and the reaction gas to obtain a mixture consisting mainly of ethylene and .alpha.-olefin from the top of the distillation column; and feeding a starting material containing the mixture obtained from the distillation column into a polymerization reactor, thereby copolymerizing the ethylene and .alpha.-olefin in the presence of a polymerization catalyst to obtain an ethylene-.alpha.-olefin copolymer.