Abstract: An air flow rate measuring apparatus includes a casing having opposite open ends, a flow rectifier mounted within the casing at an upstream-side portion thereof with respect to a direction of flow of fluid to be measured, and at least one fluid pressure detector which is mounted within the casing, and is disposed downstream of the flow rectifier, the fluid pressure detector including at least one differential pressure detector member. The differential pressure detector member includes a pair of tubular members of an identical configuration, and each of the tubular members has a flattened shape having opposed narrow side walls and opposed wide side walls, and at least one pressure-measuring port is formed through one of the opposed narrow side walls. The differential pressure detector member further includes a pair of plug members mounted on and closing opposite open ends of each of the tubular members, respectively, one of the pair of plug members having a pressure outlet port.

Abstract: A transparent or opaque sheet is affixed onto the inner surface of a side door window glass of a vehicle for coloration, light blockage, decoration and the like. In the sheet-affixed window glass, the sheet is directly but detachably affixed onto the inner surface of the window glass via a front holder and a back holder.

Abstract: The present invention provides a charged member which has no reduction in the amount of electrostatic charge at high temperature and high humidity and no extreme increase in the amount of electrostatic charge at low temperature and low humidity, improves the adhesion force between a charged member and a coating layer, prevents deterioration of developer through peeling of the coating layer. It provides excellent durability without deterioration of toner through adhering of a toner to the carrier. More particularly, a carrier for electrophotography and a sleeve for electrostatic development which use as a coating material a high-molecular compound containing as an essential component the first monomer represented by the following general formula (1) and/or (2), the second monomer represented by the following general formula (3) and/or (4) and a coupling agent containing a vinyl group are provided.

Abstract: An electrophotographic photoreceptor comprising a conductive substrate having thereon an undercoat layer and a photoconductive layer, the undercoat layer comprising a specific polymer compound which is prepared by using at least one of monomers represented by formula (1): ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group; and A represents a group represented by formula (2), (3), (4), (5) or (6): ##STR2## where the symbols in the above formulae are defined in the specification.

Abstract: The present invention provides a drain clip for use in combination with a weather strip for an automobile to drain water leaked into the weather strip attached to the flange of the body of the automobile, capable of being securely attached to a weather strip at a predetermined position on the weather strip so that the drain clip may not fall off the weather strip or may not be dislocated, and of improving the efficiency of the work for attaching the weather strip to the body of an automobile. The drain clip has a base part having an L-shaped cross section and provided in its outer surface with a drain groove formed so as to extend from one to the other end thereof. One of the legs of the drain clip is inserted between the flange of the body of the automobile and the weather strip put on the flange to form a drain passage connecting the internal space of the weather strip and the external environment.

Abstract: A photosensitive body for electrophotography having improved properties in the charging characteristics, photosensitivity, and stability in repeated use. The photosensitive body for electrophotography comprises a photoconductive layer formed on a conductive support through an undercoat layer, the undercoat layer containing at least one polyester compound having repeated units represented by the following general formula (I): ##STR1## wherein A and B each independently represents a divalent aliphatic hydrocarbon or aromatic hydrocarbon which is optionally substituted, at least one of A and B being selected from the group consisting of specific divalent groups, and n is 10-10,000.

Abstract: A surface-treated inorganic fine particle includes an inorganic fine particle, a hydrophobizing agent deposited on the surface of the inorganic fine particle and an amino group-containing coupling agent deposited on the surface of the inorganic fine particle, wherein the hydrophobizing agent and the amino group-containing coupling agent in a ratio of 1/(0.01 to 0.1) by weight are deposited on the surface of the inorganic fine particle by treating the surface of the inorganic fine particle with the hydrophobizing agent and the amino group-containing coupling agent. An electrophotographic developer contains toner particles and the surface-treated inorganic fine particles.

Abstract: A process for the preparation of pyrazolone derivatives represented by the general formula ##STR1## wherein R is a hydrogen atom, an alkyl group, an allyl group, an aryl group or an aralkyl group, and R.sub.1 and R.sub.2 are, respectively, a hydrogen atom, an alkyl group or a phenyl group which may have a substituent, comprising reacting a 2,3-dihalocarboxylic acid derivative or a 2-haloacrylic acid derivative with a hydrazine derivative. A pyrazolone or 1-substituted-3-pyrazolones useful as intermediate starting materials for the synthesis of agricultural chemicals, medicine and chemical compounds can be easily and cheaply prepared from widely used industrial starting materials.

Abstract: A container for a fluid is formed of a soft, inner container for containing the fluid and a rigid, outer container, the inner container being disposed within the outer container, both containers having a discharge port common to each other. Approximately half from the discharge port side of the inner container bonded to the outer container.

Abstract: A color toner and a black toner for electrostatic charge development comprises a binder resin and a colorant, wherein the binder resin comprises a polyester resin containing (a) an ethoxylated bisphenol type diol, (b) a propoxylated bisphenol type diol and (c) an aromatic dicarboxylic acid or an anhydride or ester thereof, as main monomer components, and the polyester resin further containing (d) at least one compound selected from the group consisting of alkylsuccinic acids, acid anhydrides and esters thereof, alkenylsuccinic acids, and acid anhydrides and esters thereof in an amount of 7 to 25 mol % based on the total monomer amount of the polyester resin, and the colorant is a flushing pigment comprising hydrous paste of an organic pigment and the polyester resin, or comprising a carbon black having a primary particle size of from not less than 30 nm to not more than 50 nm.

Abstract: The invention relates to an improved method for making a plasma display apparatus comprising a plurality of stripe-shaped electrodes arranged in a matrix, a dot-shaped discharge area or pixel area at each solid intersection between the stripe-shaped electrodes and a fluorescent film formed on each of the discharge areas and adapted to emit light when the fluorescent film is excited by ultraviolet rays from the corresponding discharge area wherein the improvement is fabricating a ridge on one of the substrates utilizing a negative-working or positive-working diffusion patterning process.

Abstract: An ink transfer medium for toner is disclosed, comprising the following layers, in this order: a heat-generating resistive layer heated by input of electrical signal, a conductive layer, and an ink release layer having a toner layer on it, an adhesion from 0.2 g/mm to 40 g/mm as measured by the 90.degree. peeling off method and consisting of a viscoelastomer having a critical surface tension of 35 dyne/cm or less. It can be re-inked by attaching toner to the portions of the ink transfer medium from which the ink has been removed, using toner held in a toner holding means.

Abstract: A process for perforating a stencil sheet comprising a thermoplastic resin film is disclosed which process comprises melting predetermined portions of the thermoplastic resin film with the heat from heat-generating elements to form perforations while applying a pressure to the film and under such a condition that the film is spaced away from the heat-generating elements by a close distance. According to the process of the invention, perforations through which ink passes smoothly can be formed in a stencil sheet using a thermal head and thus clear images can be obtained.

Abstract: A thick film paste composition used to apply a conductive pattern, comprising(a) spherical, non-coagulating fine particles of metallic silver having a surface area/weight ratio of at least 1.1 m.sup.2 /g and having a particle size of 1.0 .mu.m or less, and(b) fine particles of a glass frit having a softening point of 350.degree. to 620.degree. C. and contained in an amount of 2.1 weight parts or less per 100 weight parts of metallic silver,wherein (a) and (b) are dispersed in (c) an organic medium.

Abstract: An ink transfer medium for toner is disclosed, comprising the following layers, in this order: a heat-generating resistive layer heated by input of electrical signal, a conductive layer, and an ink release layer having a toner layer on it, an adhesion from 0.2 g/mm to 40 g/mm as measured by the 90.degree. peeling off method and consisting of a viscoelastomer having a critical surface tension of 35 dyne/cm or less. It can be re-inked by attaching toner to the portions of the ink transfer medium from which the ink has been removed, using toner held in a toner holding means.

Abstract: A process for producing the heat-sensitive stencil sheet is described which is a simple process, makes it possible to readily form a porous substrate layer having a good fiber dispersibility on a thermoplastic resin film without intervening any adhesive layer and allows to carry out a single production line from beginning to end.

Abstract: Disclosed is a process for hydroconverting a heavy hydrocarbon oil in a reactor under high-temperature and high-pressure conditions,wherein said hydroconversion is carried out through using at least three desulfurization catalysts which each contains as active metals transition metals of Group VI and VIII in the Periodic Table supported on an alumina carrier and which have different SI of 40 or higher, 30 or higher and below 40, and lower than 30, respectively,and wherein said at least three catalysts are packed into the reactor in a descending order of SI from the inlet to the outlet of the reactor, with the proportion of the catalyst having SI of 40 or higher is at least 10% by volume, that of the catalyst having SI of 30 or higher and below 40 is at least 20% by volume, and that of the catalyst having SI of lower than 30 is at least 30% by volume.

Abstract: A color toner providing a toner image excellent in brightness, clearness and graininess and a process for producing the same are disclosed, wherein a proportion of dispersed pigment particles having a circle-equivalent diameter of 0.3 .mu.m or greater does not exceed 0.1% of the total number of said dispersed pigment particles. The process comprises kneading a water-containing pigment paste and a binder resin at a temperature of 100.degree. C. or higher under pressure in a heat and pressure kneader to remove a water content to obtain a pigment dispersion, melt-kneading the resulting pigment dispersion together with a binder resin, and grinding the mixture.