Abstract: It is determined whether or not a transmitter has issued a request to display a completion state table, whether or not the current date and time have reached the date and time specified by the transmitter, whether or not an opening rate has exceeded a predetermined value, or whether or not a completion rate has exceeded a predetermined value. When any of these conditions is satisfied, a completion state table containing information such as the number of receivers who have opened the message, the opening rate, the number of receivers who have completed their jobs associated with the message, the completion rate, etc. is forcibly displayed on a terminal device.

Abstract: A method and system of providing a receiver state list with names of receivers of a message, the title of the message, confirmation information indicating whether or not receivers of the message confirmed content of the message, completion information indicating whether or not the business related to the message is completed, and comments which the receivers prepared for the message. From the receiver state list, a sender and all receivers of the message can obtain or display the states of all the receivers and may confirm whether or not each receiver confirmed the content of the message or whether or not business related to the message is completed.

Abstract: A method and system of providing a receiver state list with names of receivers of a message, the title of the message, confirmation information indicating whether or not receivers of the message confirmed content of the message, completion information indicating whether or not the business related to the message is completed, and comments which the receivers prepared for the message. From the receiver state list, a sender and all receivers of the message can obtain or display the states of all the receivers and may confirm whether or not each receiver confirmed the content of the message or whether or not business related to the message is completed.

Abstract: In a receiver state list, receivers' names of message, the titles of the message, completion information indicating whether or not receivers of the message confirm content of the message, or whether or not the business related to the message is completed, and comments which the receivers prepare for the message are displayed. From the receiver state list, a sender and all receivers of the message can obtain the states of all the receivers, for example, whether or not each receiver confirms the content of the message or whether or not the business related to the message is completed.

Abstract: A paving asphalt concrete composition consists essentially of an oil-impregnated vulcanized rubber crumb and an asphalt-aggregate mixture, in which the oil-impregnated vulcanized rubber crumb consist of 99-60% by weight of vulcanized rubber crumb and 1-40% by weight of an extending oil. This paving asphalt concrete composition is suitable for pavement of motorways, sidewalks, runways, taxiways, parking lots and the like.

Abstract: A reverse conducting thyristor comprises a thyristor section, a diode section and a separator section. The three sections are integrally formed into a cylindrical body. The thyristor section is constituted by a first region of a first conductivity type, a second region of the second conductivity type, a third region of the first conductivity type, a main emitter region of the second conductivity type, a cathode electrode, an auxiliary emitter region, an auxiliary gate electrode and a main gate electrode.The first region is formed on a first electrode, the second region on the first region, and the third region on the second region. The main emitter region is so formed in the third region as to have its surface on the same level with that of the third region. The auxiliary emitter region is similarly formed in the third region and faces at least a part of that periphery of the main emitter region which does not contact the separator section. The cathode electrode is formed on the main emitter region.