Abstract: An electron-emitting device substrate includes a substrate and a plurality of surface conduction electron-emitting elements. Each surface conduction electron-emitting element comprises a pair of opposing electrodes disposed on the substrate and a conductive circular pattern disposed between the opposing electrodes and contacting the electrodes. The electron-emitting elements are arrayed in a matrix formation, the matrix having rows and columns in orthogonal directions. The electron-emitting elements are formed on a front surface of the substrate. The front surface is configured to have a surface roughness that is less than a surface roughness of a back surface of the substrate and is less than 0.5 s.

Abstract: An ink jet recording head is configured to jet small ink droplets for forming high-quality dot images. The ink jet recording head comprises ink jetting orifices from which ink droplets are jetted, and ink paths connected to said ink jet orifices. The ink paths are filled with ink and equipped with energy applying members for applying energy to the ink in said ink paths on demand so that ink droplets are jetted from said ink jetting orifices.

Abstract: Liquid jet heads, methods and apparatuses are provided for jetting liquid droplets to a receiving medium and forming a dot pattern on a receiving medium.

Abstract: A surface-emission laser diode includes a distributed Bragg reflector tuned to wavelength of 1.1 ?m or longer, wherein the distributed Bragg reflector includes an alternate repetition of a low-refractive index layer and a high-refractive index layer, with a heterospike buffer layer having an intermediate refractive index interposed therebetween with a thickness in the range of 5-50 nm.

Abstract: An electron emission element according to the present invention is compact, thin and low cost, and has a structure and constitution in which deterioration of the electron emission material itself is low. In the electron emission element, boron nitride material is used as the electron emission material, and a metal material or a semiconductor material is used as a substrate for forming the boron nitride material. In this way it is possible to obtain good quality boron nitride material on the substrate. Also, a voltage can be applied to the material to emit electrons, also electrons can be supplied. Moreover, by using Sp3-bonded boron nitride as the boron nitride material, and using Sp3-bonded 5H—BN material or Sp3-bonded 6H—BN material as the Sp3-bonded boron nitride, a field electron emission element can be achieved for which high efficiency electron emission characteristics unprecedented in conventional art can be obtained.

Abstract: A color inkjet recording apparatus includes a plurality of multi-nozzle inkjet recording heads ejecting inks of respective colors, an electrical system unit controlling the operation of the color inkjet recording apparatus, and an ink container connected to the multi-nozzle inkjet recording heads. The ink container is provided below the multi-nozzle inkjet recording heads and the electrical system unit.

Abstract: A surface-emission laser diode includes a distributed Bragg reflector tuned to wavelength of 1.1 ?m or longer, wherein the distributed Bragg reflector includes an alternate repetition of a low-refractive index layer and a high-refractive index layer, with a heterospike buffer layer having an intermediate refractive index interposed therebetween with a thickness in the range of 5–50 nm.

Abstract: In an apparatus producing a high-quality and high-resolution image having high water and light resistances with an orifice having a diameter less than ?25 ?m (less than 500 ?m2 in terms of cross-sectional area of the orifice) by use of a fine particle dispersion recording composition, nozzle clogging can be prevented. A recording is accomplished by a liquid jet recording apparatus for ejecting a recording composition including dispersed fine particles from a small orifice toward a receiving medium, wherein a size Dp of the fine particles and a diameter D0 of the small orifice are determined by a relationship 0.001?Dp/D0?0.01.

Abstract: A color inkjet recording apparatus includes a plurality of multi-nozzle inkjet recording heads ejecting inks of respective colors, an electrical system unit controlling the operation of the color inkjet recording apparatus, an ink container connected to the multi-nozzle inkjet recording heads, and a holding part. The ink container includes a plurality of independent ink containers containing the respective color inks, and is provided below the multi-nozzle inkjet recording heads and the electrical system unit. The holding part holds the independent ink containers, and includes a plurality of separation parts. The separation parts prevent ink from contaminating one of the independent ink containers which is caused by ink spilling or overflowing from one of the adjacent independent ink containers.

Abstract: An ink-jet recording apparatus records information within a recording width on a recording surface of a recording medium, and is provided with a multi-nozzle ink-jet recording head which includes a nozzle surface and a plurality of nozzles arranged in an array on the nozzle surface to cover the recording width of the recording medium, a transport section which transports the recording medium to pass a position confronting the nozzle surface of the multi-nozzle ink-jet recording head, and a reliability maintaining mechanism which is provided to cover all of the nozzles of the multi-nozzle ink-jet recording head, so as to maintain reliability of the nozzles.

Abstract: A solution jet type fabrication apparatus for fabricating a wiring pattern or a device, the solution jet type fabrication apparatus including a jet head for ejecting a droplet of a solution containing fine particles onto a substrate, so as to form a pattern, by vaporizing a volatile ingredient of the solution, and allowing a solid component to remain on the substrate, wherein the substrate has no liquid absorbing property, wherein the jet head includes a nozzle from which the droplet is ejected, the nozzle being formed from a material that has a greater hardness than that of the fine particles in the solution, wherein the nozzle has a size that is equal to or less than ?20 ?m, the nozzle satisfying a relation of 0.0001?Dp/Do?0.01, where Dp represents the diameter of each of the fine particles and Do represents the diameter of the nozzle, wherein each of the fine particles has a size that is equal to or less than the roughness of a surface of the substrate.

Abstract: In an apparatus producing a high-quality and high-resolution image having high water and light resistances with an orifice having a diameter less than ?25 ?m (less than 500 ?m2 in terms of cross-sectional area of the orifice) by use of a fine particle dispersion recording composition, nozzle clogging can be prevented. A recording is accomplished by a liquid jet recording apparatus for ejecting a recording composition including dispersed fine particles from a small orifice toward a receiving medium, wherein a size Dp of the fine particles and a diameter D0 of the small orifice are determined by a relationship 0.001?Dp/D0?0.01.

Abstract: A liquid jet head includes a nozzle element having nozzles from which a recording liquid is ejected to a recording medium, wherein the recording liquid contains fine particles of a pigment, wherein the fine particles of the pigment contained in the recording liquid are no less than 1% by weight, wherein each of the nozzles has an area that is less than 500 ?m, wherein each of the fine particles of the pigment has a diameter satisfying a relation of 0.0005?Dp/Do?0.

Abstract: A multi-nozzle recording head has heating elements in a density in a range between 400 and 2400 dpi arranged on a substrate. Ink is fired out through a nozzle by a function of growth of air bubble generated in a recording liquid in each heating element. The multi-nozzle recording head has a dimension such as to cover a recording range of a recording medium which is conveyed by a conveyance belt to a position at which the nozzle surfaces of said recording head face said recording medium.

Abstract: An organic transistor includes: a substrate made of electrically conductive material or semiconductor material; an insulating layer on the substrate; and an organic semiconductor layer and a pair of electrodes on the insulating layer, wherein a configuration is made such that: the organic semiconductor layer is sealed by a translucent member; a voltage is applied between the pair of electrodes in a range such that the organic semiconductor layer emits light; further a voltage is applied to the substrate so as to control the light emission of the organic semiconductor layer; and light emitted by the organic semiconductor layer can be taken out via the translucent member.

Abstract: A multi-nozzle recording head has heating elements in a density in a range between 400 and 2400 dpi arranged on a substrate. Ink is fired out through a nozzle by a function of growth of air bubble generated in a recording liquid in each heating element. The multi-nozzle recording head has a dimension such as to cover a recording range of a recording medium which is conveyed by a conveyance belt to a position at which the nozzle surfaces of said recording head face said recording medium.

Abstract: A liquid jet head includes a nozzle element having nozzles from which a recording liquid is ejected to a recording medium, wherein the recording liquid contains fine particles of a pigment, wherein the fine particles of the pigment contained in the recording liquid are no less than 1% by weight, wherein each of the nozzles has an area that is less than 500 ?m2, wherein each of the fine particles of the pigment has a diameter satisfying a relation of 0.0005?Dp/Do?0.

Abstract: An image forming apparatus includes an input part for inputting information, a processing part for processing the information; a storing part for storing the information, an output part for outputting the information, a writing part for writing desired information to a portable recording medium, and a scanner for scanning an original as image information. In image forming apparatus, the image information scanned by the scanner is stored in the storing part, and wherein the input part, the processing part, the storing part, and the output part are centralized at one place, and send and receive the information to and from each other.

Abstract: In an apparatus producing a high-quality and high-resolution image having high water and light resistances with an orifice having a diameter less than ?25 ?m (less than 500 ?m2 in terms of cross-sectional area of the orifice) by use of a fine particle dispersion recording composition, nozzle clogging can be prevented. A recording is accomplished by a liquid jet recording apparatus for ejecting a recording composition including dispersed fine particles from a small orifice toward a receiving medium, wherein a size Dp of the fine particles and a diameter D0 of the small orifice are determined by a relationship 0.001?Dp/D0?0.01.

Abstract: In an electron-emitting device manufacturing apparatus for forming a surface conduction electron-emitting element by a conductive thin film, a discharge head of a piezo-jet type using a piezoelectric element has a diameter being equal to or less than ?25 ?m and jets a solution that includes metal micro-particle material for forming the conductive thin film, on the area between the electrodes, which are formed on a substrate of the electron-emitting device, as a droplet. A volatile component in a solution dot pattern is vaporized after the droplet is jetted on the substrate so that a solid content is remained on the substrate. The solution having micro-particle dispersed in liquid satisfies a relationship of 0.0002?Dp/Do?0.01 where Dp denotes a diameter of the metal micro-particle and Do denotes a diameter of the discharge opening.