Abstract: A glass bonding material contains vanadium and phosphor as main glass components, and comprises in amounts converted as oxides of the elements in the components, 45 to 60% by weight of V2O5, 15 to 30% by weight of P2O5, 5 to 25% by weight of BaO, or contains a glass comprising at least vanadium, phosphor, barium and antimony, wherein the glass comprises in amounts converted as oxides, 15 to 35% by weight of BaO and Sb2O3 in total, and a weight ratio of BaO/Sb2O3 or Sb2O3/BaO is 0.3 or less.

Abstract: A sealing glass of a low melting point phosphate glass composition contains 15 to 35% of BaO and Sb2O3 (in total) and the ratio by weight of BaO to Sb2O3 or Sb2O3 to BaO is 0.3 or less. Particularly the transition metal is vanadium and the glass contains V2O5 of 45 to 60 wt % as vanadium oxide and P2O5 of 15 to 30 wt % as phosphorus oxide. The bonding material is a mixture of a filler and a vanadate-phosphate glass that contains V2O5 of 45 to 60%, P2O5 of 20 to 30%, BaO of 5 to 15%, TeO2 of 0 to 10%, Sb2O3 of 5 to 10%, and WO3 of 0 to 5%. The particle size of the filler is in the range of 1 to 150 ?m and the ratio of filler is 80% by volume or less of the adhesive glass.

Abstract: A bonding glass containing V2O5: 25 to 50 wt %, TeO2: 20 to 40 wt % and BaO: 5 to 30 wt %, and not containing lead.

Abstract: A glass bonding material contains vanadium and phosphor as main glass components, and comprises in amounts converted as oxides of the elements in the components, 45 to 60% by weight of V2O5, 15 to 30% by weight of P2O5, 5 to 25% by weight of BaO, or contains a glass comprising at least vanadium, phosphor, barium and antimony, wherein the glass comprises in amounts converted as oxides, 15 to 35% by weight of BaO and Sb2O3 in total, and a weight ratio of BaO/Sb2O3 or Sb2O3/BaO is 0.3 or less.

Abstract: An electron microscope comprising an electron emitting cathode equipped with a carbon nanotube and an extraction unit to field-emit electrons. The carbon nanotube contains a sharp portion which is approximately conical shape at tip thereof closed at the electron-emitting cathode. A method of manufacturing carbon nanotube having a sharp angle part at the tip thereof, comprising a step of placing and heat-treating a tip-sharpened carbon nanotube still at a lower temperature than a phase transition temperature and a step of placing and heat-treating a tip-sharpened carbon nanotube still at a higher temperature than a phase transition temperature.

Abstract: Means for achieving the purpose of the present invention includes an field emission type cathode composed of a single fibrous carbon substance and a conductive substrate supporting the same; an extraction apparatus for causing field emission of electrons; and an accelerator for accelerating electrons, wherein the aforementioned field emission type electron gun is further contains means for heating the aforementioned field emission cathode, and means for applying the voltage of the polarity that does not allow the aforementioned field emission type cathode to field-emit electrons. Thereby, the amorphous carbon is removed from the tip end of the fibrous carbon substance of the field emission type electron gun, without the tip end thereof being damaged.

Abstract: Means for achieving the purpose of the present invention includes an field emission type cathode composed of a single fibrous carbon substance and a conductive substrate supporting the same; an extraction apparatus for causing field emission of electrons; and an accelerator for accelerating electrons, wherein the aforementioned field emission type electron gun is further contains means for heating the aforementioned field emission cathode, and means for applying the voltage of the polarity that does not allow the aforementioned field emission type cathode to field-emit electrons. Thereby, the amorphous carbon is removed from the tip end of the fibrous carbon substance of the field emission type electron gun, without the tip end thereof being damaged.

Abstract: It is an object of the present invention to provide a spacer which has an adequate Young's modulus for a spacer used in an image display panel and allows free adjustment of an electric resistance value, and an image display panel using the spacer. The spacer SPC holds a gap between a back panel PNL1 including a signal line CL, a scanning line GL, and an electronic source ELS provided for the main surface of a back substrate SUB1, and a front panel PNL2 including a fluorescent material PH, a black matrix BM, and an anode AD provided for the main surface of a front substrate SUB2. The spacer comprises phosphate glass including the same transition metal element with different valences. For electrical conduction, the included same transition metal element with different valences allows the use of hopping conduction between transition metal atoms with different valences to perform adjustment of electric resistance relatively easily.

Abstract: The object of the present invention is to enable the optical axis of an electron beam of a field emission electron gun mounting thereon an electron gun composed of a fibrous carbon material to be adjusted easily. Moreover, it is also to obtain an electron beam whose energy spread is narrower than that of the electron gun. Further, it is also to provide a high resolution electron beam applied device mounting thereon the field emission electron gun. The means for achieving the objects of the present invention is in that the fibrous carbon material is coated with a material having a band gap, in the field emission electron gun including an electron source composed of a fibrous carbon material and an electrically conductive base material for supporting the fibrous carbon material, an extractor for field-emitting electrons, and an accelerator for accelerating the electrons. Moreover, it is also to apply the field emission electron gun to various kinds of electron beam applied devices.

Abstract: An amorphous carbon layer sticking on a carbon nanotube surface is remarkably reduced when a carbon nanotube is joined to a conductive substrate by bringing a single fibrous carbonaceous material in contact with the tip of the conductive substrate and covering at least a part of the contact portion with a conductive material while at lest either of the fibrous carbonaceous material or the conductive substrate is heated in a vacuum.

Abstract: An electron emitting element having a cap portion 103 with a closed structure and a columnar axis portion 101a comprising a tubular material composed mostly of carbon and a conductive base material for immobilizing the tubular material, characterized in that; the cap portion 103 includes a plurality of five-membered ring structures 104 made by atoms which constitute the tubular material and the distance between the five-membered ring structures 104 is 30 nm or more.

Abstract: A conductive material comprising a V2O5—P2O5 glass and a second phase dispersed in the V2O5—P2O5 glass, wherein the second phase contains a crystalline V and O compound and a crystalline metal phosphate compound. The crystalline V and O compound is at least one of V2O5, V4O9, V2O4, and V2O3. The metal phosphate compound is a phosphate compound of transition metal or alkaline-earth metal. In a visual display device, glass spacers are bonded to glass panels with the conductive material.

Abstract: A plasma display panel comprising a front substrate and a back substrate formed opposite each other and bonded to each other at the peripheries, electrodes formed on the front substrate, a dielectric layer formed on the electrodes, a protective layer formed on the dielectric layer, another electrode and another dielectric layer formed on the back substrate, barrier ribs to keep spaces between the front substrate and the back substrate, and fluorescent materials packed in the spaces formed by the barrier ribs, the front substrate, and the back substrate. The barrier ribs include glass at least containing oxide of tungsten, phosphorus, barium, and vanadium.

Abstract: The purpose of the present invention is to provide a plasma display panel containing black colored parts which have high resistant against degradation in blackness or peeling by high-temperature oxidation.

Abstract: To prevent occurrence of abnormal discharge which would reduce the quality of images in a PDP. At least one of an address electrode, a bus electrode, a bus main electrode, and a black electrode of a display electrode formed on a substrate is formed of metal particles and high-resistance glass to dissipate charge accumulated on a dielectric through the high-resistance glass and to prevent charging in a glass component itself, thereby reducing abnormal discharge. The high-resistance glass is preferably realized by vanadium phosphate glass containing vanadium, phosphorus, antimony, and barium. The metal particles desirably contain flaky particles.

Abstract: To prevent sucking of a sealing material in steps of sealing and exhaust of a plasma display panel. The plasma display panel includes a front substrate and a rear substrate, in which the peripheries thereof are sealed by a glass sealing material. A sealing portion formed by the glass sealing material is formed of a multi-layered structure including at least two types of glass with different softening points. The entirety or part of the sealing portion on an inner side of the panel is formed of glass with the highest softening point. Since the high-temperature softened glass serves as a barrier for preventing sucking of the low-temperature softened glass into the panel, it is possible to prevent sucking of the sealing material into the panel. This can improve image display characteristics.

Abstract: The present invention provides a field emission electron gun and its operating method. The field emission electron gun includes: an electron source including a fibrous carbon substance and a conductive base material for supporting the substance; a drawer device for causing electrons to be emitted by field emission; an accelerator for accelerating the electrons; and a means for heating the electron source. In the electron gun, the electron source is heated and held at the heating temperature before field emission, and thereafter the lowest heating temperature causing a range of fluctuation in the field emission current to fall within a predetermined value is adjusted when needed. By employing the electron gun and its operating method of the present invention, provided are various electron beam applied apparatuses each capable of continuously operating for a long time while being low in noise and high in resolution.

Abstract: A probe is made by attaching a carbon nanotube 12 to a mounting base end 13, which eliminates the effects of a carbon contamination film, to increase the bonding strength, increase the conductivity of the probe, and strengthen the bonding performance thereof by coating the entire circumference of the nanotube and the base with a coating film, rather than coating just one side. The work of mounting the carbon nanotube and mounting base end are performed under observation by a microscope. Further, the carbon contamination film 14 formed by an electron microscope is stripped off at a stage before bonding by the coating film.

Abstract: A spacer according to the present invention for use in a flat panel display, which includes a cathode substrate with a cold cathode electron emitting device formed thereon, an anode substrate with a phosphor formed thereon, and a spacer disposed between the cathode and anode substrates, comprises a base made of a conductive glass, and a conductive crystallized glass layer on a surface of the base. The spacer is more excellent in antistatic characteristics than conventional spacers having a conducting layer on the surface of an insulating glass base. A flat panel display according to the present invention using the spacers permits a higher voltage to be applied, thus increasing image quality.

Abstract: An amorphous carbon layer sticking on a carbon nanotube surface is remarkably reduced when a carbon nanotube is joined to a conductive substrate by bringing a single fibrous carbonaceous material in contact with the tip of the conductive substrate and covering at least a part of the contact portion with a conductive material while at lest either of the fibrous carbonaceous material or the conductive substrate is heated in a vacuum.