Abstract: The present invention is directed to a fuel oil for diesel engines, which is reduced in the discharges of particulate matters (PM) and carbon dioxide (CO) in exhaust gas upon combustion while retaining a high cetane number, characterized in that the fuel oil composition comprises a mineral oil as a principal component; and(a) 2-13 wt % of one or more dialkyl phthalate compounds represented by the chemical formula (1), and(b) 2-13 wt % of one or more glycol ether compounds represented by the chemical formula (2); andthe total content of said components (a) and (b) is from 4 to 15 wt %.

Abstract: In a process for manufacturing a prepreg for use as an electrically insulating material, a main epoxy resin composition and a subsidiary resin composition containing a hardener which have been separately filtered and metered are quickly mixed into a mixture resin composition, a reinforcing member is coated with a uniformly thin film of the mixture resin composition by a die coater under specific temperature, average residence time and low shear conditions, the coated reinforcing member is heated in non-contact manner by an infrared ray heater to have the member impregnated with the resin composition of the film, the member is further heated in non-contact manner by a floating dryer to have the resin composition semi-hardened, and the member is unified through compaction rolls, whereby the prepreg in the form of a sheet-shaped fiber reinforced composite material is continuously manufactured.

Abstract: A high breakdown voltage semiconductor device is constituted, in either a semiconductor substrate or a lightly doped well diffused layer having deep diffusion depth, of a heavily doped diffused layer as a heavily doped drain diffused layer, a lightly doped diffused layer having deeper diffusion depth that the heavily doped diffused layer, and a lightly doped diffused layer adjacent to the heavily doped diffused layer called as an offset diffused layer. The heavily doped diffused layer functions as a part of the drain diffused layer, and has depth around 0.3 to 0.6 micron meter, and impurity concentration of 10.sup.19 to 10.sup.20 impurities/cm.sup.3. The width of the heavily doped diffused layer is set to 4 to 5 micron meters or greater. If the width of the heavily doped diffused layer is set less than this value, the breakdown voltage at an edge is lowered, and thereby impairment of the breakdown voltage occurs. The lightly doped diffused layer also functions as a part of the drain diffused layer.

Abstract: Disclosed is a polymer prepared from an .alpha.,.beta.-ethylenic unsaturated compound, characterized by having a structure represented by the following general formula (1): ##STR1## (where, R.sup.1 and R.sup.2, which are the same or different, a C1-C4 alkyl group, m is an integer of 1-10 and n is 0, 1 or 2) in the molecule.

Abstract: This invention relates to a semiconductor device comprising an N-type semiconductor substrate, an intermediate breakdown voltage part comprised of a first P-type diffusion layer formed in the N-type semiconductor substrate, a high breakdown voltage part comprised of a second P-type diffusion layer formed in the N-type semiconductor substrate, and a transistor circuit part formed in the N-type semiconductor substrate. According to the invention, a semiconductor device capable of simultaneously forming plural functioning devices in a single semiconductor substrate, causing hardly any short channel effect, is obtained.

Abstract: A solid ink for use in a hot-melt ink jet printer of the present invention comprises: a central body including wax and one of dye and pigment; and a layer of wax formed on at least one surface of the central body. The wax layer is preferably formed on all the surfaces of the central body.

Abstract: A decorative structure comprising a structural member, and a decorative member composed of a plurality of layers laminated on one another and including a reinforcing layer, wherein the structural member and the decorative member to each other are coupled together by means of a portion of the structural member and a portion of the decorative member, the portion of the structural member and the portion of the decorative member being held in engagement with each other, the portion of the reinforcing layer being at least in part formed by a portion of the reinforcing layer, such portions of the structural member and decorative member forming a groove and protrusion or mortise and tenon joint or being fastened together by a mechanical fastening element such as a screw, a bolt or a stud.

Abstract: A conjugated fiber having a sheath-core conjugated structure comprising a polyester core component composed mainly of polyethylene terephthalate and a polyamide sheath component composed mainly of polyhexamethylene adipamide, is disclosed, which has excellent mechanical properties such as a high tenacity, a high modulus, and an improved dimensional stability, and an improved adhesion to a rubber, especially a high-temperature adhesion, an improved heat resistance in a rubber, and a high fatigue resistance, and thus is useful as an industrial material. By adopting a high-speed spinning procedure in the fiber preparing process, the peel resistance in the interface of the sheath-core conjugated structure is greatly improved, and the following valuable characteristics not possessed by conventional conjugated yarns can be obtained:(1) Excellent adhesion and high-temperature adhesion comparable to those of a polyamide, which cannot be obtained in a polyester.