Abstract: An electric compressor is provided which has: in a sealed container, a compression mechanism to compress a refrigerant and an electric motor to drive the compression mechanism, wherein the refrigerant contains 20% by mass or more of hydrofluoroolefin, and a refrigerator oil stored in the sealed container contains; polyvinyl ether as a base oil; an alicyclic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; an aliphatic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; and tertiary phosphate in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil.

Abstract: An electric compressor is provided which has: in a sealed container, a compression mechanism to compress a refrigerant and an electric motor to drive the compression mechanism, wherein the refrigerant contains 20% by mass or more of hydrofluoroolefin, and a refrigerator oil stored in the sealed container contains; polyvinyl ether as a base oil; an alicyclic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; an aliphatic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; and tertiary phosphate in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil.

Abstract: Provided is a lubricant for a gas insulated switchgear, with which properties of a base oil such as heat resistance, evaporation loss, fluidity under a low temperature, and chemical stability (oxidation resistance and HF resistance) are balanced at a level higher than the conventional level, and long service life and high reliability of the gas insulated switchgear are achieved. A lubricant for a gas insulated switchgear according to the present invention, contains: a base oil containing a polyalphaolefin having a kinematic viscosity at 40° C. of 50 mm2/s or more; and a thickener containing bisamides.

Abstract: Provided is a lubricant for a gas insulated switchgear, with which properties of a base oil such as heat resistance, evaporation loss, fluidity under a low temperature, and chemical stability (oxidation resistance and HF resistance) are balanced at a level higher than the conventional level, and long service life and high reliability of the gas insulated switchgear are achieved. A lubricant for a gas insulated switchgear according to the present invention, contains: a base oil containing a polyalphaolefin having a kinematic viscosity at 40° C. of 50 mm2/s or more; and a thickener containing bisamides.

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: 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: 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: A spacer of the present invention for use in an image display device, which has the spacer between a cathode substrate with a cold cathode electron emitting device formed thereon and an anode substrate with a phosphor formed thereon, comprises a phosphate glass having transition metal oxides as its main components, and a higher phosphate concentration layer at the spacer surface. A thickness of the higher phosphate concentration layer is suppressed to 0.5 ?m or less. More preferably, the spacer has a water resistant conductive passivation layer formed on its surface. This suppresses the thickness of the higher phosphate concentration layer to a thinner level, so that the spacer is less likely to be charged thus reducing the deflection amount of electron beam. An image display device of the present invention using above spacer can apply a higher voltage to the anode substrate, thus increasing the image quality.

Abstract: An image display apparatus is provided which is capable of suppressing generation of cracks to be caused by a load applied to a partition disposed between an anode panel and a cathode panel. The partition for retaining a predetermined distance between back and front substrates by using bonding material is constituted of a partition main body and an electric conducting layer coated on the outer peripheral surface of the partition main body. The partition main body has curved portions at the corners of upper and lower end portions, the curved portions contacting the back and front substrates. It is possible to prevent damages of an electrode to be caused by a mechanical load applied to cathode and anode panels having electrodes on opposing surfaces.

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: An object of the present invention is to provide a highly reliable display device by preventing an adhesive layer from being drawn to the inside at the time of vacuum pumping and by securing a sufficient adhesive strength. A crystalline layer CRZ is formed in the surface of an adhesive layer FT between the respective contact surfaces of a first glass substrate SUB1 and a sealing frame FR, as well as of a second glass substrate SUB2 and the sealing frame FR.

Abstract: It is an object of the present invention to provide a reflector made of heat-resistant glass. It is another object of the present invention to provide a projective display which uses the reflector. A projector device having: a light source emitting white light; a reflector reflecting a light emitted from the light source; a light valve modulating illumination beam of light; and a projective lens projecting image light from the light valve, wherein the reflector is made of a glass containing SiO2 as a major ingredient and at least one rare-earth element selected from the group consisting of Sc, Y, La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and the glass has a thermal expansion coefficient lower than 40×10?7/° C. and a transition temperature higher than 500° C.

Abstract: The present invention is envisioned to provide a high-strength glass which is applicable to the objective of size and weight reduction. A layer containing a rare earth element in a high concentration is formed at a glass portion close to a surface (superficial portion) which is shallow in depth from an outermost surface of the glass which contains a rare earth element.

Abstract: The present invention is envisioned to provide a high-strength glass which is applicable to the objective of size and weight reduction. At a surface portion of the glass containing a rare earth element, a heterogeneous phase containing at least said rare earth element is formed.

Abstract: It is an object to provide an electric conductive, Pb-free bonding material for securing spacers for display panels of display devices. The electric conductive bonding material as the first aspect of the present invention contains a V2O5-based glass as a main component, and particles of a metal selected from the group consisting of Pt, Pd, Cr, Ni, Al, Si, Zn, Au and Fe—Ni alloy, or of one or more species of electric conductive ceramics which can be selected from the group consisting of TiC, SiC, WC, ZnO, Fe2O3, FeO, Fe3O4, AgV7O18 and Ag2V4O11 at 10 to 50% by volume. The electric conductive bonding material as the second aspect of the present invention contains V2O5 at 55 to 75%, P2O5 at 15 to 30%, BaO at 0 to 25% Sb2O3 at 0 to 15% (total content of BaO and Sb2O3 adjusted at 5% or more), and GeO2 at 5 to 20% or Ag2O at 3 to 10%, all percentages by mass.

Abstract: The present invention is envisioned to provide a high-strength glass which is applicable to the objective of size and weight reduction. At a surface portion of the glass containing a rare earth element, a heterogeneous phase containing at least said rare earth element is formed.

Abstract: The seal frame MFL interposed between the cathode panel PNL1 and the anode panel PNL2 along their peripheral portion is integrally formed with curved recesses CUV, concave in cross section, in its bonding surfaces in contact with the cathode panel PNL1 and the anode panel PNL2. This construction keeps the frit glass FG within the recesses CUV, preventing it from being squeezed out in the widthwise direction of the seal frame MFL. This in turn makes less likely the formation of penetrating holes in the frit glass, which will lead to a leakage. Thus, an airtightness improves, maintaining the vacuum level in the hermetically enclosed space, preventing a vacuum leakage caused by improper bonding between the two substrates, and realizing a highly reliable image display apparatus.

Abstract: An object of the present invention is to provide a flat-panel display using a glass material suitable for reducing thickness and weight thereof.

Abstract: The present invention is envisioned to provide a high-strength glass which is applicable to the objective of size and weight reduction. A layer containing a rare earth element in a high concentration is formed at a glass portion close to a surface (superficial portion) which is shallow in depth from an outermost surface of the glass which contains a rare earth element.

Abstract: The present invention is envisioned to provide a high-strength glass which is applicable to the objective of size and weight reduction. A compression stress layer is formed in a surface portion of an oxide-based glass containing at least one rare earth element selected from the group consisting of Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu and further containing at least Si element and an alkali metal element.