Abstract: A method for producing a monoclonal antibody and antigen-specific antibody-producing hybridomas using a single antigen-specific B lymphocyte is provided. The method for producing antigen-specific antibody-producing hybridomas comprises selecting a single B lymphocyte reacting specifically with a certain antigen, an “antigen-specific B lymphocyte”, culturing the antigen-specific B lymphocyte selected, and fusing the cultured antigen-specific B lymphocyte with myeloma cells to obtain the hybridomas. The monoclonal antibody is produced with thus obtained hybridomas.

Abstract: A toner recycling method and a toner recycling system use two personal computers and a display. A personal computer carries out management of information of toner, which is collected at a toner collection site. Another personal computer generates recycling information, which includes information about toner requirement of a granule manufacturer. A display at the toner collection site displays recycling information. Collected toner is used for manufacturing flux by mixing with aluminum dross, aluminum ash, aluminum dregs etc.

Abstract: A supply recycling system for recycling supply goods used in an office-automation equipment includes a toner refilling process including removing waste toner from a toner bottle retrieved from a market, and filling the toner bottle with new toner; and a steelmaking-dust molding process including blending the waste toner removed at the toner refilling process with steelmaking dust, and molding the steelmaking dust blended with the waste toner.

Abstract: An upper floor member 30 is unitarily comprised of a floor panel portion 30a for forming a floor surface 12, a first wall portion 30b extending downwards from circumferential edges of the floor panel portion 30a and continuous in the circumferential direction, and a second wall portion 30c spanned between opposed portions of the first wall portion 30b and progressively increased in thickness toward the center of the floor panel portion 30a. The floor panel portion 30a is polygonal in shape, and the first wall portion 30b is progressively increased in thickness toward the center of each side. The first wall portion 30b extends downwards to the vicinity of the lower floor, and its lower end is supported by a support means 18. Thus, a double floor structure which is inexpensive, has a high stiffness, good workability, and offers a high vibration-damping performance can be provided.

Abstract: A pretreatment apparatus for performing pretreatment before a painting process includes a treatment tank to be filled with a treatment liquid for degreasing and chemical conversion. A circuit section forms a circulation path for circulating the treatment liquid from the treatment tank to the treatment tank. A purifying section removes dust, chemical sludge and oil from the treatment liquid circulated to the treatment tank through the circulation path.

Abstract: Equipment of pretreatment before painting for a composite vehicle body comprises a treatment tank, an aluminum chemical conversion unit, and a rinse unit. The treatment tank is filled with a degreasing and chemical conversion solution containing a mixed solution of a polar organic solvent and water, any of sodium ion and lithium ion, phosphate ion, zinc ion, nickel ion, manganese ion, and any of nitrate ion and nitrite ion. The mixed solution has a weight ratio of the polar organic solution to the water in a range of 2.8:7.2 to 3.8:6.2. The aluminum chemical conversion unit treats the composite vehicle body with a chemical conversion solution for aluminum. The rinse unit washes the composite vehicle body with a washing solution.

Abstract: A toner recycling method and a toner recycling system use two personal computers and a display. A personal computer carries out management of information of toner, which is collected at a toner collection site. Another personal computer generates recycling information, which includes information about toner requirement of a granule manufacturer. A display at the toner collection site displays recycling information. Collected toner is used for manufacturing flux by mixing with aluminum dross, aluminum ash, aluminum dregs etc.

Abstract: Conventional binders require water for granulation, are poor in shape retention, generate a large amount of smoke when used in granulated moldings, thus deteriorating the working atmosphere, and causes excessive heating of granulated moldings, and therefore there are many disadvantages to limit their use. The binder of the invention is compounded with a resin having a softening point suitable as a binder resin for toners, preferably 100° C. or less, for example polyol resin, styrene-acrylic copolymer or polyester resin. As the binder, waste toners can be utilized. The binder does not require addition of water and is excellent in water resistance, and is thus effective for production of steel-making flux particularly from aluminum residues such as alumidoloss and aluminum ash.

Abstract: A pretreatment apparatus for performing pretreatment before a painting process includes a treatment tank to be filled with a treatment liquid for degreasing and chemical conversion. A circuit section forms a circulation path for circulating the treatment liquid from the treatment tank to the treatment tank. A purifying section removes dust, chemical sludge and oil from the treatment liquid circulated to the treatment tank through the circulation path.

Abstract: Disclosed is the purchase information collecting method capable of collecting reliable purchase information about any kind of commodity using a network. In the purchase information collecting method, used is a server apparatus capable of communicating with a computer managed (operated) by a seller and a computer operated by a purchasers, stores, when receiving sales information that is capable of identifying a deal about a commodity and is generated and transmitted by the computer managed by the seller, the received sales information on the first storing part.

Abstract: In a method for intermediating a transaction in a transaction center intermediating a transaction between a customer buying a product and a retailer selling the product through a network, information concerning the product for said customer is provided. And information showing the product selected by the customer to buy is received and then a delivery schedule including a delivery date of the product is provided. Also, an order from the customer is received and information concerning the order to the retailer is provided.

Abstract: The present invention provides a merchandise contract brokerage system to which a plurality of merchandise vendor information processing systems, a plurality of retailer information processing systems, and a plurality of consumer information processing systems are connected via a network. This merchandise contract brokerage system includes a merchandise contract sub system that performs a brokerage operation in transmission and reception of merchandise information and contract information between the plurality of merchandise vendor information processing systems and the plurality of retailer information processing systems, and a retailer sub system that performs a brokerage operation in transmission and reception of merchandise information and contract information between the plurality of retailer information processing systems and the plurality of consumer information processing systems.

Abstract: A layered type electrophotographic photoconductor includes an electroconductive support; and a photoconductive layer formed thereon, which photoconductive layer contains a charge generation layer and a charge transport layer, which are overlaid, with the charge generation layer containing a polyalkylene glycol and/or a derivative thereof and/or a crown ether, and the charge transport layer containing an antioxidant. Alternatively, an undercoat layer may be interposed between the electroconductive support and the photoconductive layer, with the undercoat layer containing a polyalkylene glycol and/or a derivative thereof and/or a crown ether, and the charge transport layer containing an antioxidant.

Abstract: An electrophotographic image formation method using an electrophotographic photoconductor composed of an electroconductive support, and a photoconductive layer including a charge generation layer and a charge transport layer which are successively overlaid on the support, having the steps of charging the surface of the electrophotographic photoconductor uniformly to a predetermined polarity, exposing the charged surface of the photoconductor to light images to form electrostatic latent images thereon, developing the electrostatic latent images to visible toner images by a developer, transferring the toner images to an image-receiving medium, and cleaning the surface of the photoconductor, with the concentration of ozone in the ambient atmosphere around the photoconductor being controlled in the range from 5 to 50 ppm, and the abrasion of the photoconductive layer being controlled to 300 .ANG. or less per 1000 revolutions of the photoconductor.

Abstract: A composite paint for an automotive outer panel comprises an electrodeposition paint film coated on the surface of a steel sheet. The electrodeposition paint film has a minimum melt viscosity not less than 0.2 during hardening and consists essentially of a water paint composition in an amount ranging from 50 to 85 parts by weight upon conversion to a solid content, and a partially cross-linked resin in an amount ranging from 15 to 50 parts by weight upon conversion to a solid content. Additionally, an intermediate paint film is coated on the electrodeposition paint film and has a hardening starting time ranging from 15 to 20 minutes.

Abstract: A composite paint film coating formed on a steel sheet of an automotive vehicle body. The composite paint film coating is comprised of an electrodeposition paint film (I) coated on the steel sheet, and an intermediate paint film (II) coated on the first paint film. The electrodeposition paint film has a minimum melt viscosity not less than 0.2 during hardening. The electrodepositon paint film is formed of cathodic electrodeposition paint composition which includes a cationic thermosetting resin (1), and an already cross-linked particulate resin (2). The particlate resin is an addition-polymer formed between a fist compound (A) having at least two primary amino groups in a molecule, and a second compound (B) having at least two .alpha.,.beta.-ethylenic unsaturated groups. The particulate resin has an average particle size ranging from 0.01 to 1 .mu.m. The weight ratio ((2)/(1)) in solid content between the particulate resin (2) cationic thermosetting resin (1) is within a range from 0.03 to 0.15.

Abstract: A paint film arrangement formed on an outer panel of an automotive vehicle. The paint film arrangement comprises a film of an electrodeposition paint formed on the surface of a steel plate of the automotive vehicle outer panel. The surface of the electrodeposition paint film has a center line average height Ra within a range of 0.3.mu..ltoreq.Ra.ltoreq.0.8.mu.. The total of values of power spectrum of the surface of the electrodeposition paint film is not more than 80 .mu.V.sup.2 within a wavelength range not more than 0.5 mm. Additionally, a film of an intermediate coat paint is formed on the surface of the electrodeposition paint film. The intermediate coat paint has a hardening starting time ranging from 15 to 20 minutes. The hardening starting time is determined according to a logarithmic decrement of the intermediate coat paint by an oscillated pendulum type viscoelasticity measuring device.

Abstract: A composite paint film formed on a steel sheet of an automotive vehicle body. The composite paint film comprises an electrodeposition paint film (I) coated on the steel sheet, and an intermediate coat paint film (II) coated on the first paint film. The electrodeposition paint film is formed of an epoxy-based cationic electrodeposition paint composition and has a minimum melt viscosity not less than 0.2 during hardening. The epoxy-based cationic electrodeposition paint composition includes an amine-added epoxy resin (1) of the type which may be hardened with a blocked isocyanate, a colloidal silica-containing gelled particulate (2), and an alkyltin ester compound of a liquid aliphatic carboxylic acid. The above-mentioned colloidal silica-containing gelled particulate is formed by dispersing a mixture of an acrylic copolymer having a hydrolizable alkoxysilane group and a cationic group and a cationic acidic colloidal silica in water to carry out a cross-linking reaction in particles of the colloidal silica.