Abstract: A method for evaluating a color picture tube includes displaying on a display surface of a color picture tube a measurement pattern including a plurality of first patterns arranged at different positions relative to fluophor dots of said color picture tube and a plurality of second patterns near said first patterns and sufficiently large relative to said fluophor dots. A first image is obtained using an imaging element to image said displayed measurement pattern. A second image is obtained using said imaging element to image while controlling light intake to allow brightness components of no more than about 1% of maximum luminance from said first image to be separated from noise and imaged. A third image is created by combining said first image and said second image while adjusting scales according to a light intake ratio. From said third image, display center positions of said plurality of first patterns is calculated using said second pattern positions.

Abstract: In image-capture inspection of electronic displays, the object of the present invention is to reduce moire generation, improve inspection precision by making pixel defects easier to discover, and allowing quantitative evaluation of these pixel defects. The relative positioning of the electronic display and an imaging element is changed by very small amounts of 1/n of the pixel pitch. The n images are arranged by pixel and the images are combined by taking the moving average of the image data values to reduce the image-capture moires generated during the image capture operations. The composite image is used to inspect pixel defects in the electronic display.

Abstract: A method for evaluating a color picture tube includes displaying on a display surface of a color picture tube a measurement pattern including a plurality of first patterns arranged at different positions relative to fluophor dots of said color picture tube and a plurality of second patterns near said first patterns and sufficiently large relative to said fluophor dots. A first image is obtained using an imaging element to image said displayed measurement pattern. A second image is obtained using said imaging element to image while controlling light intake to allow brightness components of no more than about 1% of maximum luminance from said first image to be separated from noise and imaged. A third image is created by combining said first image and said second image while adjusting scales according to a light intake ratio. From said third image, display center positions of said plurality of first patterns is calculated using said second pattern positions.

Abstract: An electron microscope resolving power evaluation method for evaluating performance of a scanning electron microscope without resorting to visual sensory analysis for minimizing a difference in deterioration with age and in performance among individual scanning electron microscopes. A specimen is prepared by overlaying materials having different emission coefficients of secondary charged particles such as secondary electrons, backscattered electrons, transmitted electrons, etc., a cross-section including an overlaid material part of thin-film layers having known dimensions is mirror-finished, data of a scanning electron microscopical image of the cross-section, including the overlaid material part is obtained, and then the resolving power performance of the scanning electron microscope is evaluated quantitatively by means of frequency analysis, etc.

Abstract: Disclosed are a pyruvate orthophosphate dikinase gene coding for a polypeptide containing the amino acid sequence of SEQ ID NO:1 or an amino acid sequence where in said amino acid sequence one or more amino acids are added, deleted or substituted and bringing about the activity of pyruvate orthophosphate dikinase; recombinant DNA having the pyruvate orthophosphate dikinase gene integrated in vector DNA; and a process for producing pyruvate orthophosphate dikinase, which comprises culturing a microorganism belonging to the genus Escherichia carrying the above recombinant DNA in a medium, and recovering pyruvate orthophosphate dikinase from the resulting culture. The pyruvate orthophosphate dikinase gene and a process for producing pyruvate orthophosphate dikinase are provided.

Abstract: N-acetylmannosamine dehydrogenase gene derived from a microorganism belonging to the genus Flavobacterium, e.g., Flavobacterium sp. No. 141-8 strain and defined by a specific restriction enzyme map which encodes 271 amino acid sequence. Using the recombinant DNA, N-acetylmannosamine dehydrogenase can be produced in a simpler manner in an industrial scale. The enzyme is useful for quantitative determination of sialic acid.

Abstract: The present invention relates to a novel cycloisomaltooligosaccharide selected from the group consisting of novel cycloisomaltoheptaose having a cyclic structure composed of 7 glucose residues in .alpha.-1,6 linkage, novel cycloisomaltooctaose having a cyclic structure composed of 8 glucose residues in .alpha.-1,6 linkage and novel cycloisomaltononaose having a cyclic structure composed of 9 glucose residues in .alpha.-1,6 linkage, novel cycloisomaltooligosaccharide synthase forming said oligosaccharides from dextran, and a process for producing said oligosaccharides by use of said enzyme or a microorganism capable of producing said enzyme.

Abstract: The present invention relates to a novel cycloisomaltooligosaccharide selected from the group consisting of novel cycloisomaltoheptaose having a cyclic structure composed of 7 glucose residues in .alpha.-1,6 linkage, novel cycloisomaltooctaose having a cyclic structure composed of 8 glucose residues in .alpha.-1,6 linkage and novel cycloisomaltononaose having a cyclic structure composed of 9 glucose residues in .alpha.-1,6 linkage, novel cycloisomaltooligosaccharide synthase forming said oligosaccharides from dextran, and a process for producing said oligosaccharides by use of said enzyme or a microorganism capable of producing said enzyme.

Abstract: L-Fucose dehydrogenase having the following Physicochemical properties (1) and (2):(1) Action and substrate specificityIt withdraws hydrogen from L-fucose and converts into L-fuconolactone and at the same time, reduces coenzyme NADP.sup.+ to NADPH.(2) pH and stable pH rangeWhen Tris-imidazole-sodium acetate buffer solution is used, the optimum pH is in a range of 9.0 to 10.0 and the stable pH range is between 8.0 and 10.5.The L-fucose dehydrogenase utilizing NADP.sup.+ as coenzyme can be obtained by culturing L-fucose dehydrogenase-producing strain belonging to the genus Pseudomonas in a medium and collecting formed L-fucose dehydrogenase from the culture.L-Fucose can be quantitatively determined by reacting a sample containing L-fucose with L-fucose dehydrogenase requiring NADP.sup.+ as coenzyme and assaying NADPH produced.

Abstract: The present invention relates to a method for determining a slight amount of NADH or XTP which is present in a solution, with high sensitivity by the use of an NADH kinase specific for NADH by utilizing a cycling reaction, and this method permits highly sensitive determination of NADH without any influence of NAD.sup.+ and hence is useful for diagnoses of diseases and the like.

Abstract: The present invention relates to a novel NADH kinase which has high stability and is specific for NADH, and a process for producing the NADH kinase by culturing a yeast belonging to the genus Pichia in a culture medium, and this enzyme permits highly sensitive determination of NADH alone and hence is useful in the field of clinical medicine.

Abstract: N-Acetylhexosamine-dehydrogenase which takes off hydrogen from N-acetylglucosamine or N-acetylgalactosamine to convert them to N-acetylglucosaminolactone or N-acetylgalactosaminolactone, respectively, and, at the same time, reduces co-enzymes NAD.sup.+ to NADH is provided herein.The enzyme of this invention can be obtained by culturing, in a medium, a strain belonging to Genus Pseudomonas and having an ability to produce N-acetylhexosamine-dehydrogenase, followed by collecting the enzyme from the cultured product.Herein is also provided a method for quantitatively analyzing N-acetylglucosamine or N-acetylgalactosamine which comprises reacting N-acetylglucosamine-dehydrogenase upon a sample containing N-acetylglucosamine or N-acetylgalactosamine and measuring the quantity of the resulting NADH.

Abstract: N-Acetylmannosamine dehydrogenase which takes off hydrogen from N-acetylmannosamine to convert it into N-acetylmannosaminolactone and, at the same time, reduces coenzyme NAD into NADH. This enzyme can be obtained by culturing, in a medium, a strain belonging to Genus Flavobacterium and having an ability to produce N-acetylmannosamine dehydrogenase producing activity, and then collecting it. This enzyme is usable in the quantitative analysis of N-acetylmannosamine or sialic acid.

Abstract: N-Acetylmannosamine dehydrogenase which takes off hydrogen from N-acetylmannosamine to convert it into N-acetylmannosaminolactone and, at the same time, reduces coenzyme NAD into NADH. This enzyme can be obtained by culturing, in a medium, a strain belonging to Genus Flavobacterium and having an ability to produce N-acetylmannosamine dehydrogenase producing activity, and then collecting it. This enzyme is usable in the quantitative analysis of N-acetylmannosamine or sialic acid.

Abstract: A flash fixing apparatus is provided for fixing an unfixed toner image on a base material by light radiated from a flash lamp. The apparatus includes a conveyor mechanism for conveying the base material, the flash lamp for radiating light toward the unfixed toner image on the base material which is being conveyed by the conveyor mechanism, and an auxiliary heating system for additionally heating the base material. The conveyor mechanism comprises a negative pressure compartment having an upper board, through which a plurality of suction holes are formed, and a plurality of conveyor belts arranged spacedly from one another in such a manner that the conveyor belts are caused to move over the upper board of the negative pressure compartment. The auxiliary heating system comprises at least one auxiliary heater disposed within the negative pressure compartment and adapted to heat the upper board of the negative pressure compartment.

Abstract: A method for quantitative determination of N-acetylhexosamine which comprises (a) allowing an N-acetylhexosamine oxidase to act upon an N-acetylhexosamine-containing liquid in the presence of oxygen and then (b) determining the amount of oxygen consumed in the oxidation reaction or the amount of hydrogen peroxide or N-acetylhexaminic acid formed in the oxidation reaction. Further, a reagent for quantitative determination of N-acetylhexosamine, characterized by containing an N-acetylhexosamine oxidase.

Abstract: An N-acetylhexosamine oxidase having the following physiochemical properties.(1) Action and specificity for substrateOxidizes N-acetylhexosamine in the presence of oxygen to form N-acetylhexosaminic acid and hydrogen peroxide. Hardly acts or does not act at all on hexose and hexosamine.(2) Optimum pH and stable pH rangeWhen a potassium phosphate buffer solution contining 0.1M glycine is used, an optimum pH is 7.5 to 8.5 and a stable pH range is 3 to 9.(3) Molecular weightHas a molecular weight of about 140,000 to 150,000 when measured according to a gel filtration method using Sephadex G-200 by the use of 0.05M potassium phosphate buffer solution.

Abstract: The invention discloses an auxiliary head lamp device for a car equipped with a cover which is optionally fitted to a car and is lit during driving in fog or the like. The cover of this device can be opened when a solenoid of a cover driving mechanism is energized by operating a switch disposed inside the room of the car. The solenoid releases engagement of a stopper that restricts the cover urged in the opening direction. The switch may be used also as a switch for a light source bulb. After the solenoid is energized and the opening operation of the cover starts, a current to the solenoid is automatically cut off so that over-heat or burn-out of the solenoid that would occur if the current is continuously applied thereto can be prevented.

Abstract: This invention discloses an auxiliary head lamp device for a car equipped with a cover, which head lamp is optionally fitted to a car, is lit when driving in fog and is equipped with a cover that can be opened by remote switching operation. The cover of this head lamp device is opened when a solenoid of a cover driving mechanism is energized by operating a switch disposed inside the room of the car. The solenoid may have a function of releasing the cover from a stopper which restricts the cover from moving in its opening direction. The switch may be used also as a switch for the bulb of the auxiliary head lamp. An electric circuit including two thermostat switches for preventing over-heat of the solenoid is preferably employed. The solenoid may be in deenergized state while keeping the bulb lit. A device equipped with a rotary solenoid for directly opening and closing the cover is also disclosed.

Abstract: Disclosed herein is an apparatus for closely covering with a plastic film at least one surface of a base sheet such as identification card to improve the durability of the base sheet and to prevent any unauthorized alteration of information described thereon. The above apparatus includes a pair of conveying and pressing rollers and a heat radiation lamp incorporated therein to heat the circumference of at least one of the rollers. The base sheet and the plastic film overlaid are preheated by direct heat from the heat radiation lamp while being conveyed toward the pair of rollers, thereby achieving a high-speed processing and prevention of base sheet deformation. Also disclosed is an apparatus equipped with a heat transmission member along the base sheet feed path of a base sheet travelling path. The heat transmission member is adapted to present the base sheet and the plastic film, and may be formed by a part of a reflector plate.