Abstract: Provided is a microporous membrane made of a polypropylene-based resin and having high porosity, being useful as a battery separator. The microporous membrane is composed of a polypropylene-based polymer in which a melt mass flow rate (MFR) measured at 230° C. and a load of 21.18 N in accordance with JIS K6758 is 1.0 g/10 min or less, and has porosity of 50% or more. Provided is also a method for producing the same.

Abstract: A display means with which no unevenness is caused on a surface of a separator material in a microporous film roll for a battery separator is described. Microporous film roll (1) for the battery separator according to the invention has indicator part (18) different in optical characteristics therefrom in microporous film (3) for the battery separator. Moreover, a method for producing microporous film roll (1) for the battery separator according to the invention has features of providing indicator part (18) different in light shieldability or light reflectivity therefrom in microporous film (3) for the battery separator.

Abstract: A lighting device using LED, comprising an LED group 250 configured with series-connected plural number of LED 252 and a driving circuit 550 for feeding the light-emission current to the LED group, wherein the driving circuits 550 has a parallel circuit comprised of a peak current setting capacitor 222 and a resistor 220 connected in parallel thereto, and a full-wave rectification circuit 230; wherein the LED group 250 is connected to the output terminal of the full-wave rectification circuit, and the capacitance of the peak current setting capacitor has a value within a region in which the peak value of the pulsating current behaves to increase its value in accordance with the increase of the capacitance of the peak current setting capacitor; wherein an interruption period that is determined in accordance with the number of the series-connections of the LED in the LED group is specified, and the pulsating current, of which peak value is determined in accordance with the capacitance of the peak current settin

Abstract: A positioning device of a position sensor that does not require re-positioning and re-fastening at the time of mounting the position sensor. A positioning tool provided with a driving section and a positioning section is mounted on a position sensor. Then, positioning projections of the positioning section are engaged with neutral position grooves. In this state, the positioning section is rotated by the driving section so as to have the position sensor rotated together until the R-contact turns ON, so that an angle from N to R, i.e. from a neutral position to a reverse contact ON position is measured. Thereafter, the positioning section is rotated in an opposite direction to measure an angle from N to D, i.e. from a reverse contact OFF position to a drive contact ON position. Based on the measurement result, the positioning section is re-rotated by the driving section to move the position sensor to a proper neutral position. The position sensor is fastened in this condition.

Abstract: A positioning device of a position sensor that does not require re-positioning and re-fastening at the time of mounting the position sensor. A positioning tool provided with a driving section and a positioning section is mounted on a position sensor. Then, positioning projections of the positioning section are engaged with neutral position grooves. In this state, the positioning section is rotated by the driving section so as to have the position sensor rotated together until the R-contact turns ON, so that an angle from N to R, i.e. from a neutral position to a reverse contact ON position is measured. Thereafter, the positioning section is rotated in an opposite direction to measure an angle from N to D, i.e. from a reverse contact OFF position to a drive contact ON position. Based on the measurement result, the positioning section is re-rotated by the driving section to move the position sensor to a proper neutral position. The position sensor is fastened in this condition.

Abstract: Disclosed is an evaporating apparatus for performing a film forming process on a target object to be processed by vapor deposition, wherein a processing chamber and a vapor generating chamber are disposed adjacent to each other, gas exhaust mechanisms for depressurizing an inside of the processing chamber and an inside of the vapor generating chamber are installed, a vapor discharge opening for discharging a vapor of the film forming material is disposed in the processing chamber, vapor generating units for vaporizing the film forming material and control valves for controlling a supply of the vapor of the film forming material are disposed in the vapor generating chamber, and flow paths, which are not exposed to an outside of the processing chamber and the vapor generating chamber, for supplying the vapor of the film forming material generated in the vapor generating units to the vapor discharge opening are installed.

Abstract: The invention provides a projection device comprising a screen constituted in a layered structure with a light-transmissive screen panel and a light-transmissive reinforcing panel, wherein a front panel in the screen has a plane wider than residual panels on the back of the screen, an image projector for projecting an image on the screen, a screen frame fit on the peripheral edges of the residual back panels with a plane smaller than the front panel, a double-side adhesive tape inserted between residual back panels and the screen frame for uniting them together, a single-side adhesive tape applied across the peripheral edges of the front panel and the screen frame for uniting them together, and a housing for accommodating therein the image projector and for holding at its opening the screen via the screen frame so as that the front panel of the screen exposes outside.

Abstract: Provided is a polypropylene resin foam-molded article which has a rib having a relatively small thickness and which has an improved strength at a boundary part between a main body part and the rib part without increasing a thickness of the rib part. The polypropylene resin foam-molded article is obtained by molding a material for a foam-molded article using a polypropylene resin, wherein the molded article comprises a main body part and a rib part provided vertically to the main body part; the rib part has a thickness (Tr) of 3 mm or less, or a thickness ratio (Tr/Tb) of a thickness of the rib part (Tr) to a thickness of the main body part (Tb) is 0.8 or less; the main body part and the rib part each comprise a non-foamed surface layer and an intermediate layer having a foamed structure; and the intermediate layer in the main body part is connected to the intermediate layer in the rib part.

Abstract: Provided is a polypropylene resin foam-molded article which has a rib having a relatively small thickness and which has an improved strength at a boundary part between a main body part and the rib part without increasing a thickness of the rib part. The polypropylene resin foam-molded article is obtained by molding a material for a foam-molded article using a polypropylene resin, wherein the molded article comprises a main body part and a rib part provided vertically to the main body part; the rib part has a thickness (Tr) of 3 mm or less, or a thickness ratio (Tr/Tb) of a thickness of the rib part (Tr) to a thickness of the main body part (Tb) is 0.8 or less; the main body part and the rib part each comprise a non-foamed surface layer and an intermediate layer having a foamed structure; and the intermediate layer in the main body part is connected to the intermediate layer in the rib part.

Abstract: The invention provides an image projection display apparatus comprising an image signal source for providing primary color signals, a light source comprising light emitting devices respectively emitting monochromatic lights corresponding to the primary color signals, a first optical system for guiding the monochromatic lights, a DMD having two-dimensionally arrayed micro-mirrors, provided for receiving the monochromatic lights guided through first optical system, a controller receiving the primary color signals for controlling the DMD so that specific micro-mirrors on the DMD change their own orientations by being activated with the primary color signals sequentially supplied from the image signal source and the light source so that the respective monochromatic lights are sequentially emitted in synchronous with the primary color signals, and a second optical system for sequentially projecting respective primary color image patterns presented by the specific orientation-changed micro-mirrors on the DMD in a p

Abstract: An internal electrode (14) is formed on the inner wall surface of a tube-shaped light emitting body (12) along the longitudinal direction of the light emitting tube (12). An external electrode (15) is formed on the exterior surface of the light emitting tube (12) along the longitudinal direction of the light emitting tube (12). An electric discharge starts between the internal electrode (14) and the external electrode (15) by applying a high-frequency voltage therebetween. Only one tube wall of the light emitting tube (12) lies between the internal electrode (14) and the external electrode (15), and the internal electrode (14) and the external electrode (15) can be brought close to each other. The limitation of an electric current running between the internal electrode (14) and the external electrode (15) can be reduced, and a starting voltage or a discharge-maintaining voltage can be lowered. In addition, the internal electrode (14) can be easily processed with high accuracy.

Abstract: The invention provides a projection device comprising a screen constituted in a layered structure with a light-transmissive screen panel and a light-transmissive reinforcing panel, wherein a front panel in the screen has a plane wider than residual panels on the back of the screen, an image projector for projecting an image on the screen, a screen frame fit on the peripheral edges of the residual back panels with a plane smaller than the front panel, a double-side adhesive tape inserted between residual back panels and the screen frame for uniting them together, a single-side adhesive tape applied across the peripheral edges of the front panel and the screen frame for uniting them together, and a housing for accommodating therein the image projector and for holding at its opening the screen via the screen frame so as that the front panel of the screen exposes outside.

Abstract: The present invention provides a thermoplastic resin structure which has a three-layer structure of flexible skin layer/flexible foamed material layer/hard substrate layer wherein each of the layers comprises a thermoplastic resin capable of melt-adhesion with each other, and the flexible foamed material layer is formed by the injection foam molding method. The resin structure exhibits the capability of being easily recycled and, at the same time, can be produced at a low cost, which has not been achieved by a conventional structure using a cross-linked foamed sheet or a urethane foam, while maintaining the performance in appearance, cushioning, rigidity and the like, and thus markedly useful for application fields requiring high performance in cushioning, sound absorption, heat insulation and the like in automobiles, household electrical appliances, general industrial parts and the like.

Abstract: An object is to provide a thermoplastic resin molded article concurrently having excellent heat insulating properties, rigidity, and lightness, and to provide a method for producing the same. A molded article made from a thermoplastic molding material comprises: a multilayer structure portion having a surface layer composed of a non-foamed type of said molding material and an internal layer composed of a foamed type of said molding material; and a portion composed of only a non-foamed type of said molding material.

Abstract: To provide a polypropylene-based resin exterior panel which has the same appearance qualities as a coated product though it is not coated and which is excellent in rigidity and impact resistance, a polypropylene-based resin exterior panel comprising a surface layer made from a highly transparent resin composition comprising a propylene-.alpha.-olefin random copolymer having a melting point lower than 155.degree. C. and a melt flow rate (MFR) of 0.5 to 30 g/10 min and a clarifying nucleating agent, an intermediate layer made from a colored resin composition comprising a propylene-.alpha.-olefin random copolymer having a melting point lower than 155.degree. C. and an MFR of 0.5 to 30 g/10 min and a coloring pigment, and a base layer made from a base composition comprising a propylene-.alpha.-olefin block copolymer having a melting point of 155.degree. C.

Abstract: An object is to provide a thermoplastic resin molded article concurrently having excellent heat insulating properties, rigidity, and lightness, and to provide a method for producing the same. A molded article made from a thermoplastic molding material comprises: a multilayer structure portion having a surface layer composed of a non-foamed type of said molding material and an internal layer composed of a foamed type of said molding material; and a portion composed of only a non-foamed type of said molding material.

Abstract: A compartment ventilating apparatus prevents its indoor louver (22) from being subjected to the formation of dew, and, therefore can prevent the dew built up in its ventilation area in the form of ice, which enables the apparatus to keep a sufficient ventilation area in operation. In the apparatus, an opening portion (3 ) passes through a side wall (2) of a compartment (1). Mounted in the opening portion, (3) are an inner ventilation unit (4) and an outer ventilation unit (5) which is spaced apart from the inner ventilation unit (4).