Abstract: High-quality bis-(1(2)H-tetrazol-5-yl)amine and a method for easily, safely, and inexpensively producing the compound are provided. The method for producing bis-(1(2)H-tetrazol-5-yl)amine includes the steps of heating to 50 to 120° C. a solution mixture in which a necessary amount of an azide salt and a dicyanamide salt in an amount corresponding to 1 to 80 wt % of a necessary amount are added to a solvent, adding an acid in an amount of 1.54 to 2.22 chemical equivalents of the dicyanamide salt in the solution mixture to carry out a reaction at 50 to 120° C., and then adding an acid and a dicyanamide salt solution in which the remaining dicyanamide salt is dissolved in a solvent to promote the reaction. Bis-(1(2)H-tetrazol-5-yl)amine is obtained according to the production method.

Abstract: The television receiver apparatus in the prior art has such a problem that, when phone calls come in this receiver set while the user watches a television, incoming calls of all phone calls are informed and also the television watching is suspended or interrupted.

Abstract: High-quality bis-(1(2)H-tetrazol-5-yl)amine and a method for easily, safely, and inexpensively producing the compound are provided. The method for producing bis-(1(2)H-tetrazol-5-yl)amine includes the steps of heating to 50 to 120° C. a solution mixture in which a necessary amount of an azide salt and a dicyanamide salt in an amount corresponding to 1 to 80 wt % of a necessary amount are added to a solvent, adding an acid in an amount of 1.54 to 2.22 chemical equivalents of the dicyanamide salt in the solution mixture to carry out a reaction at 50 to 120° C., and then adding an acid and a dicyanamide salt solution in which the remaining dicyanamide salt is dissolved in a solvent to promote the reaction. Bis-(1(2)H-tetrazol-5-yl)amine is obtained according to the production method.

Abstract: High-quality bis-(1(2)H-tetrazol-5-yl)amine and a method for easily, safely, and inexpensively producing the compound are provided. The method for producing bis-(1(2)H-tetrazol-5-yl)amine includes the steps of heating to 50 to 120° C. a solution mixture in which a necessary amount of an azide salt and a dicyanamide salt in an amount corresponding to 1 to 80 wt % of a necessary amount are added to a solvent, adding an acid in an amount of 1.54 to 2.22 chemical equivalents of the dicyanamide salt in the solution mixture to carry out a reaction at 50 to 120° C., and then adding an acid and a dicyanamide salt solution in which the remaining dicyanamide salt is dissolved in a solvent to promote the reaction. Bis-(1(2)H-tetrazol-5-yl)amine is obtained according to the production method.

Abstract: The present invention provides Bis-(1(2)H-tetrazol-5-YL)-amine compound, and safe and inexpensive methods for producing high quality Bis-(1(2)H-tetrazol-5-YL)-amine compound. Also provided are Bis-(1(2)H-tetrazol-5-YL)-amine intermediates, and methods for their preparation. The process of preparing Bis-(1(2)H-tetrazol-5-YL)-amine intermediate substantially combines dicyanamide salt, azide salt, solvent and acid at 40-70 C temperature. The process of preparing Bis-(1(2)H-tetrazol-5-YL)-amine anhydride and/or Bis-(1(2)H-tetrazol-5-YL)-amine monohydrate comprises heating the intermediate described above at ?75 C and adding a second acid.

Abstract: The television receiver apparatus in the prior art has such a problem that, when phone calls come in this receiver set while the user watches a television, incoming calls of all phone calls are informed and also the television watching is suspended or interrupted.

Abstract: Providing video telephone apparatus where the orientation of a picked-up image or a received image can be changed according to the orientation of the image pick-up section or the display, thus allowing transmission or display of a proper image at any time. In video telephone apparatus according to the invention, an image pick-up section outputs the image data on the target object to a transmit image rotating section. The transmit image rotating section performs rotation processing on a picked-up image so that the upper side of an image pick-up section in the vertical direction coincides with the upper side of an image to transmit to the distant party, based on the orientation of the image pick-up section detected by an image pick-up vertical direction detector. A picture signal received from the distant party is demodulated and output to a receive image rotating section.

Abstract: A telephone with a call-incoming-operation limiting function which has a clock means 2 for measuring the time and changes over call-incoming operation according to the time, comprises: a ringer-tone-volume controlling means 4 for controlling the tone volume of a ringer 5 during call incoming; and a call-incoming-operation limiting function controlling means 3 for instructing the ringer-tone-volume controlling means at the time set by a user to change over the tone volume of the ringer to a tone volume set by the user. By designating the time when the surroundings become quiet and by lowering the tone volume of the ringer, the user is able to know call incoming without imparting discomfort and annoyance to the surrounding people.

Abstract: In an electronic currency transmitting/receiving settling system, a purchased amount-of-money limiting means (7) for limiting an amount of the electronic currency, which is purchased by the electronic currency purchasing means (6), under an upper limit amount being set previously, an electronic currency storing means (8) for storing the electronic currency purchased by the electronic currency purchasing means (6), and a settling system communicating means (10) for executing a paying process of the electronic currency by a necessary amount out of the electronic currency, which is stored in the electronic currency storing means (8), via a communication with a price settling system (9) that pays the electronic currency are provided to a main body of an electronic currency transmitting/receiving terminal system (1).

Abstract: A cellular phone which, when a communication channel is disconnected because of deterioration of field strength while a call is in progress, waits for recovery of the field strength and reinitiates a call. The cellular phone includes telephone number storage means 12 for storing a telephone number of a called party when originating a call or storing a telephone number of a calling party when receiving an incoming call; number-for-call-reestablishment registration means 13 for storing a telephone number of the called/calling party input by the user; and call reestablishment processing means 14 for automatically reinitiating a call by dialing the telephone number stored in the telephone number storage means or the number-for-call-reestablishment registration means. Even when the cellular phone receives an incoming call, the telephone unit automatically reinitiates a call if the telephone unit has received the telephone number of the calling party.

Abstract: A telephone is made up of a communication control section 50 for performing communication control as a telephone, a telephone number registration section 52 for enabling at least one telephone number to be registered for one registration name according to operation of an operation section 51, a priority information retention section 53 for assigning display priorities to the telephone numbers for each registration name registered in the telephone number registration section 52 according to operation of the operation section 51 and retaining the priority information, a telephone network type determination section 55 for determining the communication network type for a telephone number when the telephone number is registered in the telephone number registration section 52, a telephone number retrieval section 54 for retrieving a telephone number registered in the telephone number registration section 52, and a display section 56 for displaying at least one telephone number and telephone numbers retained for eac

Abstract: An improved screw decanter type centrifugal concentrating machine for the type including a bowl and a screw conveyor rotatably supported within the bowl in the coaxial relation is disclosed. The screw conveyor is rotated at a different rotational speed from that of the bowl and an arrangement is made such that liquid initially supplied prior to separating, concentrated liquid and residual liquid after completion of separation are continuously supplied and discharged through the hollow space in the hollow shafts of the bowl and the screw conveyor. To properly adjust discharge rate of concentrated liquid and residual liquid from the machine or concentration of solid material in both liquids, throttle valves are disposed at the position located midway of discharge passages extending from the hollow shafts. The throttle valves are preferably designed in the form of an automatically controlled valve. Suspension to be treated is introduced into the bowl by way of guide vanes on the side wall of the bowl.