Abstract: Provided are an RF powder particle, an RF powder, and an RF powder-containing base that can make it difficult to fabricate, for example, forged documents or forged bank notes with respect to sheet-like objects having high proprietary values, such as bank notes, and that allow necessary information to be stored in each of the large number of particles which are each provided with a tank circuit having a predetermined resonant frequency. The RF powder particle includes a coil 24 (inductance element) as a magnetic filed coupling element and a condenser 25 (capacitance element) connected to the both ends of the coil on an insulating surface of a substrate 22 and is configured so as to form a tank circuit 31 by the inductance element and the capacitance element. The tank circuit 31 functions as a circuit in a resonance state or in a non-resonance state in accordance with conditions in response to a high-frequency magnetic field from outside.

Abstract: A method is provided for adding an RF powder to a sheet-like object having a high property value, such as a variety of cards, paper money, and securities. The RF powder makes it very difficult to produce, for example, counterfeit cards, documents and bills. Also, an RF powder-added base sheet to which the RF powder has been added is provided. In the method for adding the RF powder, the RF powder includes a plurality of RF powder particles 11 and is disposed on a surface of a base sheet 10 to add the RF powder to the base sheet. Each RF powder particle 11 has a magnetic field coupling circuit element in a high frequency magnetic field having a specific frequency. The RF powder is disposed on a surface of a base sheet by a printing technique. The RF powder-added base sheet 10 includes an RF powder including a plurality of RF powder particles 11 disposed within a printed object on a surface of a base sheet.

Abstract: A base data management system is provided which can grasp specific data recorded in a plate-like or sheet-like object having high property values, such as a variety of cards, paper money, and securities, in real time, and can manage and track circulating paper money or the like. The base data management system includes a base data reader including a reading mechanism that reads specific data or resonance frequency recorded in a base with a magnetic field coupling and a transmitting mechanism that transmits the specific frequency date read by the reading mechanism and reader information.

Abstract: RF particles that can render more difficult fabrication of counterfeit notes and the like, can generate radiofrequency magnetic fields by oscillation of a tank circuit having a particular resonant frequency, and that can easily and reliably supply electric power for oscillation, RF powder, and a method for exciting the RF powder are provided. In an RF powder particle, a coil (inductance element) serving as an antenna and a capacitor (capacitance element) connected to the coil are formed on an insulating film surface of a substrate. The inductance element and the capacitance element form a tank circuit, and a photovoltaic cell for supplying power to the tank circuit is disposed on the substrate.

Abstract: Provided are a method for providing an RF powder that is easily handled because it is used as a powder (powdery state), not used as individual elements, and is high in applicability and extensibility, extremely low in manufacturing cost in respect of the unit price of each particle, and extremely high in practicability; and an RF powder-containing liquid. In the method for providing an RF powder, an RF powder composed of a large number of RF powder particles 11a is provided to a user in a state of being stored in a container 1. The RF powder is stored in the container 1 together with a medium that prevents the large number of RF powder particles 11a from adhering to one another. The medium is a liquid having a specific color determined so as to correspond to the characteristic frequency of the RF powder.

Abstract: A base sheet 12 has a structure that stably couples a particular chip measuring 1 mm or less on paper with an antenna line by only disposing the chip and antenna line in such a manner that the chip and antenna line are close to each other, without electrically bringing the chip and antenna line into contact with each other. The base sheet 12 includes a chip 11 having a spiral coil 13 with at least one turn disposed on a surface of the chip, or inside the chip and near the surface thereof and an antenna line 14 having a conductor part 14A orbiting around the coil 13A of the chip 11 or directly over or directly below the coil 13A so that the conductor part is magnetically coupled with the coil 13A.

Abstract: A method for manufacturing RF powder wherein the RF powder is composed of a large amount of particles and used as collective RF powder (a powdery entity); and a large amount of RF powder particles can be obtained from a wafer in a stable manner and at a high yield is provided. The method for manufacturing RF powder is a method for manufacturing RF powder composed of a large amount of particles 11a each having a substrate 12 and a magnetic coupling circuit device 15.

Abstract: A base sheet 12 has a structure that stably couples a particular chip measuring 1 mm or less on paper with an antenna line by only disposing the chip and antenna line in such a manner that the chip and antenna line are close to each other, without electrically bringing the chip and antenna line into contact with each other. The base sheet 12 includes a chip 11 having a spiral coil 13 with at least one turn disposed on a surface of the chip, or inside the chip and near the surface thereof and an antenna line 14 having a conductor part 14A orbiting around the coil 13A of the chip 11 or directly over or directly below the coil 13A so that the conductor part is magnetically coupled with the coil 13A.

Abstract: A method is provided for adding an RF powder to a sheet-like object having a high property value, such as a variety of cards, paper money, and securities. The RF powder makes it very difficult to produce, for example, counterfeit cards, documents and bills. Also, an RF powder-added base sheet to which the RF powder has been added is provided. In the method for adding the RF powder, the RF powder includes a plurality of RF powder particles 11 and is disposed on a surface of a base sheet 10 to add the RF powder to the base sheet. Each RF powder particle 11 has a magnetic field coupling circuit element in a high frequency magnetic field having a specific frequency. The RF powder is disposed on a surface of a base sheet by a printing technique. The RF powder-added base sheet 10 includes an RF powder including a plurality of RF powder particles 11 disposed within a printed object on a surface of a base sheet.

Abstract: RF particles that can render more difficult fabrication of counterfeit notes and the like, can generate radiofrequency magnetic fields by oscillation of a tank circuit having a particular resonant frequency, and that can easily and reliably supply electric power for oscillation, RF powder, and a method for exciting the RF powder are provided. In an RF powder particle 21, a coil 24 (inductance element) serving as an antenna and a capacitor 25 (capacitance element) connected to the coil are formed on an insulating film surface of a substrate 22. The inductance element and the capacitance element form a tank circuit 34, and a photovoltaic cell 30 for supplying power to the tank circuit 34 is disposed on the substrate 22.

Abstract: Provided are a method for providing an RF powder that is easily handled because it is used as a powder (powdery state), not used as individual elements, and is high in applicability and extensibility, extremely low in manufacturing cost in respect of the unit price of each particle, and extremely high in practicability; and an RF powder-containing liquid. In the method for providing an RF powder, an RF powder composed of a large number of RF powder particles 11a is provided to a user in a state of being stored in a container 1. The RF powder is stored in the container 1 together with a medium that prevents the large number of RF powder particles 11a from adhering to one another. The medium is a liquid having a specific color determined so as to correspond to the characteristic frequency of the RF powder.

Abstract: A magnetic coupling device that supplies a high-frequency electromagnetic field appropriate for sensing and reading of information to a fine magnetic coupling circuit component contained in/added to individual banknotes, securities, or any other valuable sheet-like or plate-like objects, ensures sufficient magnetic coupling, and supplies sufficient electric power; and a reading device having equivalent functions are provided.

Abstract: Provided are an RF powder particle, an RF powder, and an RF powder-containing base that can make it difficult to fabricate, for example, forged documents or forged bank notes with respect to sheet-like objects having high proprietary values, such as bank notes, and that allow necessary information to be stored in each of the large number of particles which are each provided with a tank circuit having a predetermined resonant frequency. The RF powder particle includes a coil 24 (inductance element) as a magnetic filed coupling element and a condenser 25 (capacitance element) connected to the both ends of the coil on an insulating surface of a substrate 22 and is configured so as to form a tank circuit 31 by the inductance element and the capacitance element. The tank circuit 31 functions as a circuit in a resonance state or in a non-resonance state in accordance with conditions in response to a high-frequency magnetic field from outside.

Abstract: A base data management system is provided which can grasp specific data recorded in a plate-like or sheet-like object having high property values, such as a variety of cards, paper money, and securities, in real time, and can manage and track circulating paper money or the like. The base data management system 100 includes a base data reader 201 including reading means 203 that reads specific data or resonance frequency recorded in a base 10 with a magnetic field coupling and transmitting means 205 that transmits the specific frequency date read by the reading means and reader information.