Abstract: An electronic copyrighted work distribution management system includes an electronic copyrighted work sales apparatus selling an electronic copyrighted work, a copyright management apparatus administering a copyright royalty of an electronic copyrighted work sold by the electronic copyrighted work sales apparatus, a seller terminal used by a seller, and a copyright terminal used by a copyright holder. The electronic copyrighted work sales apparatus calculates and transmits to the copyright management apparatus the copyright royalty of a selected electronic copyrighted work. The copyright management apparatus stores the received copyright royalty data for each copyright holder. Since the copyright management apparatus receives and stores for each copyright holder the copyright royalty data transmitted from the electronic copyrighted work sales apparatus, the copyright royalty can be administered.

Abstract: A magnetic recording medium comprises: a non-magnetic base film; and a magnetic recording layer comprising a binder resin and black magnetic acicular composite particles having an average particle diameter of 0.051 to 0.35 ?m, comprising magnetic acicular cobalt-coated iron oxide particles or magnetic acicular metal particles containing iron as a main component, a coating formed on surface of the magnetic acicular particles, comprising at least one organosilicon compound selected from the group consisting of: (1) organosilane compounds obtainable from alkoxysilane compounds, and (2) polysiloxanes or modified polysiloxanes, and a carbon black coat formed on the coating layer comprising said organosilicon compound, in an amount of from more than 10 to 40 parts by weight based on 100 parts by weight of said magnetic acicular particles.

Abstract: A black toner comprises a binder resin and black composite particles having an average particle diameter of 0.005 to 0.30 ?m, and comprising: extender pigments as core particles; a gluing agent-coating layer formed on surface of the respective core particles; and a black pigment coat uniformly formed on the gluing agent-coating layer in an amount of 1 to 500 parts by weight based on 100 parts by weight of the extender pigments. Such a black toner using black composite particles having not only excellent blackness, fluidity and light resistance, but also an excellent dispersibility in binder resins, which toner also exhibits excellent blackness, fluidity and light resistance.

Abstract: Non-magnetic composite particles composed of non-magnetic core particles having an average particle size of 0.01 to 0.3 &mgr;m, and inorganic fine particles having an average particle size of 0.001 to 0.07 &mgr;m. The fine particles are present in an amount of 0.1 to 20% by weight based on the weight of the non-magnetic particles are on the surface of each non-magnetic particle, and are fixed or anchored on the surface of each non-magnetic particle through a silicon compound The non-magnetic composite particles have a high polishing effect and a high dispersibility, and are useful as a non-magnetic undercoat layer for a magnetic recording medium.

Abstract: A display device capable of allowing a page to be turned to give a feeling as if a page is actually turned includes a memory for storing information, a display for displaying information, a page turn instruction unit for detecting that the unit itself is tilted to output a detection signal indicating the direction of the tilt, and a display control unit for receiving an instruction from the page turn instruction unit to read information of the next or previous page from the memory according to the direction of the tilt and display the read information on the display.

Abstract: A magnetic recording medium composed of a non-magnetic base film; a non-magnetic undercoat layer formed on the non-magnetic base film, including a binder resin and non-magnetic acicular black iron-based composite particles; and a magnetic coating film comprising a binder resin and magnetic particles. The non-magnetic acicular black iron-based composite particles having an average major axis diameter of about 0.011 to 0.35 &mgr;m, and are composed of acicular hematite particles or acicular iron oxide hydroxide particles (as core particles) having an average major axis diameter of 0.01 to 0.3 &mgr;m; a coating layer formed on the surface of the core particles of a specific organosilicon compound; and a single carbon black coat formed on the coating layer in an amount of 21 to 50 parts by weight based on 100 parts by weight of the core particles.

Abstract: Composite particles capable of an excellent dispersibility and an excellent light resistance of the present invention have an average particle diameter of 0.001 to 12.0 &mgr;m, comprise: white inorganic particles as core particles; a gluing agent-coating layer formed on at least a parts of the surface of said white inorganic particle; and a black pigment coat composed of carbon black, aniline black or both carbon black and aniline black, formed onto at least a part of the gluing agent-coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles.

Abstract: A display device capable of allowing a page to be turned to give a feeling as if a page is actually turned includes a memory for storing information, a display for displaying information, a page turn instruction unit for detecting that the unit itself is tilted to output a detection signal indicating the direction of the tilt, and a display control unit for receiving an instruction from the page turn instruction unit to read information of the next or previous page from the memory according to the direction of the tilt and display the read information on the display.

Abstract: A magnetic recording medium using black magnetic acicular composite particles produced by forming a single carbon black coat between the surface of magnetic acicular cobalt-coated iron oxide particle or magnetic acicular metal particle and a coating comprising at least one organosilicon compound, in an amount of from more than 10 to 40 parts by weight based on 100 parts by weight of the magnetic acicular particles, exhibits not only a smooth surface, a smaller light transmittance and a lower surface electrical resistivity value, but also a small friction coefficient and an excellent running durability.

Abstract: A color toner comprises: a binder resin, and a colorant having an average particle diameter of 0.005 to 0.30 &mgr;m, comprising: extender pigments, a gluing agent-coating layer formed on surface of the extender pigment, and an organic pigment coat formed onto the gluing agent-coating layer in an amount of 1 to 500 parts by weight based on 100 parts by weight of the extender pigments. The color toner exhibits not only a clear hue, but also excellent fluidity and dispersibility of colorants.

Abstract: An electronic copyrighted work distribution management system includes an electronic copyrighted work sales apparatus (1) selling an electronic copyrighted work, a copyright management apparatus (4) administering a copyright royalty of an electronic copyrighted work sold by the electronic copyrighted work sales apparatus (1), a seller terminal (5) used by a seller, and a copyright terminal (7) used by a copyright holder. The electronic copyrighted work sales apparatus (1) calculates and transmits to the copyright management apparatus (4) the copyright royalty of a selected electronic copyrighted work. The copyright management apparatus (4) stores the received copyright royalty data for each copyright holder. Since the copyright management apparatus (4) receives and stores for each copyright holder the copyright royalty data transmitted from the electronic copyrighted work sales apparatus (1), the copyright royalty can be administered.

Abstract: Conventional data displays and electronic book devices involve the problem that the operation to highlight displayed data is complex, and therefore the displayed data cannot be read easily depending on the environment where the reader (user) uses the device and on the understanding of the displayed data by the user. A data displaying device of the invention comprising storage means (1) stored with data, displaying means (2) for displaying data, and display control means (3) for controlling the display of data stored in the storage means (1) on the displaying means (2) is characterized by further comprising a highlight displaying means (4) for displaying a visual confirmation guide for highlighting a specific range of the data displayed on the displaying means (2).

Abstract: Hematite particles aggregates as non-magnetic particles of the present invention are capable of forming a non-magnetic undercoat layer of a magnetic recording medium having a more excellent surface smoothness, which can exhibit not only an excellent dispersibility but also have an improving ability of a surface smoothness of a coating film produced therefrom by calendering treatment, a non-magnetic undercoat layer for magnetic recording medium which contains the hematite particles aggregates is exhibits a more excellent surface smoothness, and a magnetic recording medium having the non-magnetic undercoat layer, is exhibits a more excellent surface smoothness.

Abstract: A charge processing device (100) for use in an information sale system using a network includes: a circuit receiving from a user terminal (500) subscription request data including an information ID specifying information and a viewer ID specifying a user terminal; a circuit receiving from a distribution server (400) an information ID specifying information, an author ID specifying an author of information and a publishing company ID specifying a publishing company of information; a collecting unit responsive to reception of the subscription request data from the user terminal (500) for collecting charges from users based on the received information; a circuit transmitting subscription approval data to the user terminal (500); and a circuit transmitting information of charges to servers (200, 300, 400, 600, 700).

Abstract: A data processing device enabling stable data processing reads digital data including object data, an identifier indicating a type of the object data, and an attached program associated with at least one identifier for performing a predetermined process for object data associated with the identifier, to process the object data. The data processing device includes a program storing unit for recording an internal program including a processing module associated with the at least one identifier, an input unit for reading the digital data, and an external program executing unit for processing the object data by one of the attached program and the processing module when the attached program associated with the identifier of the read object data is present in the digital data.

Abstract: Reproduction means of a general-purpose computer (1) reproduces a digital content only when a device ID included in the digital content corresponds to a device ID of a device by which it is intended to reproduce the digital content. When the device ID of the general-purpose computer (1) is altered, a recovery program for recovering an original device ID is downloaded from a recovery program generation server (2), thereby the device ID is recovered. With this arrangement, it is possible to provide a communication system which is capable of recovering a device ID when, for instance, the device ID is altered on account of the reinstall of a program such as an OS or content player.

Abstract: A magnetic recording medium of the present invention comprises a non-magnetic base film; a non-magnetic undercoat layer formed on the non-magnetic base film, comprising non-magnetic acicular composite particles and a binder resin; and a magnetic recording layer formed on the non-magnetic undercoat layer, comprising magnetic particles and a binder resin, the non-magnetic acicular composite particles having an average major axis diameter of 0.01 to 0.

Abstract: A black colorant for ink-jet printing ink, has an average particle diameter of 0.001 to 0.15 &mgr;m, and comprises: extender pigments as core particles; a gluing agent-coating layer formed on at least a part or the surface of said core particles; and a black pigment coat uniformly formed on at least a part of said gluing agent-coating layer. The black colorant for ink-jet printing ink exhibits not only a high blackness and an excellent tinting strength, but also excellent dispersibility and light resistance in spite of fine particles.

Abstract: Non-magnetic composite particles composed of non-magnetic core particles having an average particle size of 0.01 to 0.3 &mgr;m, and inorganic fine particles having an average particle size of 0.001 to 0.07 &mgr;m. The fine particles are present in an amount of 0.1 to 20% by weight based on the weight of the non-magnetic particles are on the surface of each non-magnetic particle, and are fixed or anchored on the surface of each non-magnetic particle through a silicon compound The non-magnetic composite particles have a high polishing effect and a high dispersibility, and are useful as a non-magnetic undercoat layer for a magnetic recording medium.

Abstract: A colorant for ink-jet printing ink of the present invention, has an average particle diameter of 0.001 to 0.15 &mgr;m, and comprises: extender pigments as core particles; a gluing agent coating layer formed on at least a part of surface of said core particle; and an organic pigment coat uniformly formed on at least a part of said gluing agent coating layer. The colorant for ink-jet printing ink exhibits not only a high tinting strength and a clear hue, but also excellent dispersibility and light resistance in spite of fine particles.