Abstract: A display media particle used for an information display panel having display media constituted of particles sealed between two substrates, at least one of which is transparent, for displaying information by moving the display media, is formed of a mother particle 32 made from materials including a base resin having child particles 33 added to a surface thereof. The base resin is a thermoplastic resin having a viscosity of no more than 1000 Pa·s at 260° C. and a shear rate at 122 s?1, and a heatproof temperature at no less than 430° C. Since optimal conditions of the viscosity and the heatproof temperature are specified, it is possible to round the resin effectively by a heat treatment for spheronization as a post-treatment after manufacturing.

Abstract: Particles for display media are constructed as spherical resin fine particles, in which functional groups indicating positively-charging properties are existent on their surfaces, which are obtained by polymerizing monomer by utilizing initiator having functional groups indicating positively-charging properties produced by reacting organic alkyl sulfonates and both terminal ends of azo initiator having cationic functional group including nitrogen-containing heterocycle or nitrogen-containing fatty series, or, are constructed as spherical resin fine particles, in which functional group indicating charging properties or ionic properties are existent on their surfaces, which are obtained by polymerizing monomer by utilizing initiator having functional groups indicating charging properties or ionic properties at its both terminal ends.

Abstract: There are provided particles for display media capable of properly controlling change in an amount of charge by heating and an information display panel, by using the particles for display media capable of eliminating a display failure and reduction in contrast ratio.

Abstract: In the case of filling and setting the liquid powders or the particles in a plurality of cells formed by the partition walls on the substrate, the method includes the steps of: setting a nozzle at an upper portion of a container; setting the substrate, on which the partition walls are arranged, at a lower portion of the container; scattering the liquid powders or the particles dispersed in a gas from the nozzle arranged at the upper portion in the container; and filling the liquid powders or the particles in the cells on the substrate arranged at the lower portion in the container.

Abstract: Particles for display media used for an information display device, wherein the display media are sealed between two opposed substrates, at least one of which is transparent and wherein the display media, to which an electrostatic field is applied, are made to move so as to display information such as an image or the like, having compound particles of mother particles and child particles, which are embedded in the surface layer of the mother particles and whose surfaces are exposed. Consequently, particles for display media, which are used for an information display device, wherein child particles are not dissociated under a reverse durability test, where rewriting is repeated, and primary performance can be maintained during the reverse durability test are provided. An information display panel and an information display device using the particles for display media are also provided.

Abstract: Particles for display media used for an information display device, wherein the display media are sealed between two opposed substrates, at least one of which is transparent and wherein the display media, to which an electrostatic field is applied, are made to move so as to display information such as an image or the like, having compound particles of mother particles and child particles, which are embedded in the surface layer of the mother particles and whose surfaces are exposed. Consequently, particles for display media, which are used for an information display device, wherein child particles are not dissociated under a reverse durability test, where rewriting is repeated, and primary performance can be maintained during the reverse durability test are provided. An information display panel and an information display device using the particles for display media are also provided.

Abstract: An image display device, in which image display media are sealed between opposed substrates, at least one of two substrates being transparent, and in which the image display media, to which an electrostatic field is applied, are made to move so as to display an image. A construction of particles used as the image display media is improved (the first, second, fourth, fifth, sixth, eighth and ninth aspects of the invention), and a material of the particles used as the image display media is improved (the third, seventh and tenth aspects of the invention). Whiteness of the particles and a liquid powder using the particles is improved, particle agglutination is prevented, and the charge property is controlled. Moreover, durability is improved such that a contrast of the image display during a repetition display is not decreased. As a result, an excellent image display can be achieved.

Abstract: In the case of filling and setting the liquid powders or the particles in a plurality of cells formed by the partition walls on the substrate, the method includes the steps of: setting a nozzle at an upper portion of a container; setting the substrate, on which the partition walls are arranged, at a lower portion of the container; scattering the liquid powders or the particles dispersed in a gas from the nozzle arranged at the upper portion in the container; and filling the liquid powders or the particles in the cells on the substrate arranged at the lower portion in the container.

Abstract: In the image display device, in which the image display media are sealed between opposed substrates, at least one of two substrates being transparent, and in which the image display media, to which an electrostatic field is applied, are made to move so as to display an image, a construction of the particles utilizing as the image display media is improved (the first, second, fourth, fifth, sixth, eighth and ninth aspects of the invention), and, a material of the particles utilizing as the image display media is improved (the third, seventh and tenth aspects of the invention). Therefore, the whiteness of the particles and the liquid powder using the particles can be improved, and it is possible to prevent the particle agglutination and to control the charge property. Moreover, in the image display panel in which the particles and the liquid powder are used as the image display media, it is possible to obtain a durability such that a contrast of the image display during a repetition display is not decreased.

Abstract: In a first aspect of the invention, an image display device, in which one or more groups of particles or liquid powders are sealed between opposed two substrates, at least one of two substrates being transparent, and, in which the particles or the liquid powders, to which an electrostatic field produced by two groups of electrodes having different potentials is applied, are made to move so as to display an image, has a construction such that a member for transmitting a signal, which is applied to circuits for an image display, is provided to the substrate by means of an anisotropic conductive film and members such as the electrode are provided to a substrate opposed to a transparent substrate.

Abstract: An electroconductive endless-belt of tandem system circulatorily for transfer and/or conveyance which is circulatorily driven by a drive unit, and which conveys a recording medium retained on the belt by electrostatic attraction to four kinds of image formation members, and sequentially transfers each toner image onto the recording medium, characterized in that the endless belt comprises as a base material, at lease one member selected from the group consisting of acrylonitrile-styrene resin containing 3 to 50 mass % of a flexible component having glass transition temperature lower than 25° C., a polymer alloy of thermo plastic resin with acrylonitrile-styrene resin containing 3 to 50 mass % of a flexible component having glass transition temperature lower than 25° C., and a polymer blend of thermo plastic resin with acrylonitrile-styrene resin containing 3 to 50 mass % of a flexible component having glass transition temperature lower than 25° C.

Abstract: There are disclosed an intermediate transfer member which has the function of transferring an image formed on the surface of an image formation body to a recording medium, and which has a surface hardness of at most 80 N/mm2 expressed in terms of universal hardness at a depth from the surface of the member equivalent to the average particle size of a toner to be used for forming an image or at a depth of 7 &mgr;m; an intermediate transfer member which has the function of transferring an image formed on the surface of an image formation body to a recording medium, and which has a Z value of at least 0.

Abstract: A toner-carrying roller such as a developing roller having a surface gloss of 2 or above, with the surface gloss of the black glass standard plate having a reflective index of 1.567 (according to DIN 67 530) being 100. The toner-carrying roller provides high-quality images free of density variation and fogging owing to its surface characteristics specified by the surface gloss. In addition, it keeps its good performance without deterioration in image quality for a long period of use.

Abstract: A new intermediate transfer member which has a durable coating layer which easily conforms to the elastic deformation of the rubber layer, exhibits good wear resistance, permits easy resistance control, and fulfills such requirements as protection of the photosensitive body from staining, prevention of toner sticking, and decrease in the coefficient of friction. It is characterized in that the coating layer is composed mainly of a urethane resin which is formed from a polyol compound and a polyisocyanate compound in an excess amount in terms of NCO/OH molar ratio and which contains a solvent-insoluble fraction no less than 70%.

Abstract: Disclosed is an intermediate transfer member disposed between an image forming body and a recording medium, for transferring and holding a toner image formed on a surface of the image forming body onto a surface of the intermediate transfer member once and then transferring the toner image onto the recording medium, the intermediate transfer member including: a rubber composition, wherein the state of occurrence of cracks in the rubber composition after the rubber composition imparted with 20% of elongation has been exposed for 120 hours to an environment with an ozone concentration of 10 ppm and with a temperature of 40.degree. C. is specified such that no crack is seen, or the number of cracks and the depth of cracks satisfy a specific evaluation standard.