Abstract: An ink jet recording method and apparatus for performing recording by discharging ink onto a recording medium in accordance with recording data using a recording head having ink discharge ports for discharging the ink. The apparatus includes a scanning unit for scanning the recording head relative to the recording medium for discharging ink to record pixels on the recording medium, and a determining unit for determining whether the recording data includes non-discharge data for a predetermined number of successive pixels to be recorded by the recording head, and for generating a corresponding determination output signal.

Abstract: Provided is an ink-jet recording process for forming a color image on a recording medium using a liquid formulation and a color ink in combination, wherein the liquid formulation contains a cationic polymer having a weight-average molecular weight in the range of from 400 to 1,400, and the liquid formulation and the ink are each ejected from a recording head having an ink ejection volume per dot of from 2 to 25 picolitters.

Abstract: The present invention provides a liquid composition containing a cationic fluorocarbon surfactant having a general formula [I] or [II] and a polymer compound in a solvent, and a liquid composition containing a cationic fluorocarbon surfactant having a general formula [III] and a polymer compound in a solvent: ##STR1## wherein Rf represents a fluorocarbon group in which at least some of the hydrogen atoms in an alkyl group having 4 to 12 carbon atoms are substituted by fluorine atoms, each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, HX represents a hydrohalogenic acid, and X.crclbar. represents a halogen anion; ##STR2## wherein n represents an integer from 4 to 12, and X.crclbar. represents a halogen anion.

Abstract: An image forming method that forms an image using an ink and a liquid composition by a process comprising the steps of;(A) imparting a black ink to an image forming area of a recording medium by ink-jet recording; the black ink comprising a water-soluble black dye and a black pigment as coloring matters, and a liquid medium in which the coloring matters are dissolved or dispersed; and(B) imparting a liquid composition different from the ink to the image forming area.

Abstract: The invention provides a liquid composition containing a metallic coordination compound in a solvent, an ink set in which the liquid composition is combined with one or more inks, a method of forming an image, and an image-forming apparatus applying them.

Abstract: An ink set comprising a combination of a liquid composition containing a cationic substance, with a yellow ink, a cyan ink and magenta ink, wherein said three inks each contain a water soluble anionic dye and are capable of affording a chromaticity CIE L*a*b* to a black image presented on a recording medium by using these inks in combination within the range of the numerical expressions:10.ltoreq.L*.ltoreq.30,0.ltoreq.a*.ltoreq.7,and-10.ltoreq.b*.ltoreq.0.

Abstract: Disclosed herein is a liquid composition comprising a cationic substance, wherein the liquid composition contains polyallylamine as the cationic substance, and glycerol, the essential component as a water-soluble organic solvent, in an amount of not less than 5% by weight based on the total weight of the liquid composition.

Abstract: A liquid composition according to the present invention contains at least a cationic substance and finely ground cellulose. The invention further provides a liquid composition which contains a cationic substance having a molecular weight of 1000 or less and finely ground cellulose. The invention further provides an ink set which is obtained by combining the liquid composition with an ink, and an image-forming method and apparatus which employ the liquid composition and the ink.

Abstract: Provided is an ink set comprising a liquid composition containing a cationic substance, and a black ink in combination, the black ink containing a black dye, and a cyan dye and/or a yellow dye as water-soluble anionic dyes.

Abstract: The present invention provides a liquid composition containing at least a cationic substance and bishydroxyethylsulfone. It also provides a liquid composition containing both a cationic substance having a molecular weight distribution with a peak within the molecular weight region of 1000 or less, and bishydroxyethylsulfone.The present invention further provides an ink set comprising a combination of the liquid composition and ink, and an image forming-method and apparatus which use the liquid composition and the ink set.

Abstract: The stepped core pin has a shank to be fitted in a pin holding bore formed in a wall of a casting mold and a forming portion having a diameter smaller than that of the shank which is projected from the inner surface of the casting mold defining a mold cavity into the mold cavity. A front portion of the shank is reduced to form a neck portion and a molten metal stopping portion is formed between the neck portion and the forming portion. The diameter of the molten metal stopping portion, which is slightly smaller than that of the shank excluding the neck portion, is determined so that a clearance through which the molten metal is unable to leak into the pin holding bore is formed between the outer circumference of the pin holding bore and the inner circumference of the molten metal stopping portion. This clearance effectively combines the length of the forming portion with the length of the neck, thereby reducing stress and fatigue to the projected forming portion.

Abstract: The invention relates to a piezoelectric acceleration sensor and to a piezoelectric acceleration device which use a film piezoelectric element.Speicfically, the piezoelectric acceleration sensor and the piezoelectric acceleration sensor device generate relatively large outputs when acceleration occurs along the sensing axis, but produce relatively small outputs from acceleration perpendicular to the sensing axis. In addition, the sensor and the sensor device are relatively unaffected by temperature fluctuations and are highly impact-resistant.

Abstract: The electrostatic coating is effectively conducted on a plastic article with use of an electrically conductive agent comprising a polyurethane and an electrically conductive filler such as inorganic fine powder and organic substances.

Abstract: An electrically conductive coating composition is useful for a primer or a surfacer paint for a plastic article, in particular one having a small polarity on the surface, and comprises (A) a polyurethane, (B) a spiro-ortho-ester resin of the ring-opening expansive property, (C) a cellulose derivative, (D) a hydroxy-containing surfactant and (E) an electrically conductive material.

Abstract: A percutaneous-administration-type pharmaceutical preparation of nitroglycerin comprising a backing that is impervious to medicines, and a pressure-sensitive adhesive layer that is disposed on one surface of the backing, wherein the pressure-sensitive adhesive layer contains alkyl (meth)acrylate copolymer in the concentration of 80-95% by weight and the nitroglycerin in the concentration of 5-20% by weight, said copolymer contains as major copolymer components alkyl (meth)acrylate with alkyl groups having 6 or more carbon atoms, which alkyl (meth)acrylates include 2-ethylhexylmethacrylate in the concentration of 40-90% by weight based on the total weight of said alkyl (meth)acrylates, and the copolymer has a rolling ball tack value of 2 or less. The preparation obtained makes it possible for nitroglycerin to be absorbed percutaneously at a controlled rate for long periods of time.

Abstract: A polybutylene terephthalate composition comprises (A) polybutylene terephthalate, (B) a flame retardant and (C) a flame-retarding assistant of antimony trioxide having an average particle size of 1 micron or larger and eventually is improved in the flame-retarding property and stability when it melts.

Abstract: Silicon-containing copolyester are in the form of a block copolymers comprising,(i) between about 1 to 99% by weight of a siloxane segment which is at least one selected from the group consisting of siloxane segments expressed by the following general formulas; ##STR1## where R and R', which may be the same or different, are each hydrocarbon moieties having 1 to 10 carbon atoms, and m is an integer between 1 to 2000; and(ii) between about 99 to about 1% by weight of a polyester segment which is at least one selected from polyester segments of the following general formulas: ##STR2## where R.sub.1 is at least one radical selected from the group consisting of aromatic bivalent radicals having 6 to 12 carbon atoms and aliphatic bivalent radicals having 4 to 20 carbon atoms, R.sub.2 is at least one radical selected from the group consisting of aromatic bivalent radicals having 6 to 20 carbon atoms, and aliphatic bivalent radicals having 2 to 20 carbon atoms, and n is an integer between 1 and 1000.

Abstract: A piezo-electric acceleration sensor, including: a piezo-electric polymer membrane element having an element through-hole; a diaphragm having a diaphragm through-hole and attached to the piezo-electric membrane element so that the diaphragm hole is concentric to the element through-hole to form a laminate with a laminate through-hole; and a fixing mechanism, having a sensing hole, for fixing the laminate in a stretched manner, and wherein: the laminate through-hole has about 2.25 to about 80% of the area of the sensing hole; and the diaphragm and the piezo-electric element meet the equation:(Eb.times.Tb.sup.3)/(Ep.times.Tp.sub.3).gtoreq.about 5wherein Eb, Tb, Ep and Tp are Young's modulus thickness of the diaphragm, Young's modulus, and thickness of the piezo-electric element, respectively, whereby acceleration, applied to the diaphragm, is detected based on a quantity of electricity generated due to strains in a piezo-electric element.

Abstract: A polyester composition is disclosed which includes a polyester, (a) a thermoplastic elastomer and (b) a carbodiimide compound having at least one carbodiimide group and which exhibits improved impact resistance at low temperatures and stability to heat, hot water and steam. The composition is useful to form parts which are exposed to low temperatures. A polyalkylene terephthalate resin composition is also disclosed which includes a polyalkylene terephthalate resin, (a) at least one selected from the group consisting of ethylene/alkyl acrylate and a thermoplastic polyester elastomer and (b) at least one selected from the group consisting of an epoxy resin containing at least two carbodiimide groups in the molecule.

Abstract: A plastic article, in particular a highly crystalline plastic, can be effectively coated with a paint by using a primer composition comprising (A) a polyurethane, (B) a spiro-ortho-ester resin being capable of the ring-opening expansion, (C) a cellulose derivative and (D) a surfactant having a hydroxy group.