摘要:
The present invention provides an electrophotographic toner containing, as a fixing resin, a styrene-acrylic copolymer in which styrene content and molecular-weight distribution are specified, and which contains a specific high-molecular-weight component.The electrophotographic toner of the present invention is improved in bending resistance while assuring excellent low-temperature fixing properties, resistance to off-set and heat resistance.
摘要:
Disclosed is a one-component magnetic developer for the electrophotography, which comprises one-component magnetic toner particles and at least one fine particulate additive selected from the group consisting of hydrophobic silica, hydrophilic silica and alumina, wherein the one-component magnetic toner particles have a sphericity degree (DS), defined by the following formula, of 70 to 90%, and a specific surface area of 1.4 to 2.0 m.sup.2 /g:DS=Cc/CT (1)wherein Cc represents the outer circumference of a circle having the same area as the projected area of the toner, and CT represent the actual outer circumference of the projected plane of the toner. This developer is excellent in the flowability and can provide an image having a high density.
摘要:
A ladder circuit editing system inputs and edits a sequence program for a program controller in the form of a ladder diagram. The ladder circuit editing system has an unavailable area storing at least one inputted circuit pattern and an available area storing a new circuit pattern, and successively inputs circuit patterns from the available area. The ladder circuit editing system includes a circuit pattern extracting means, a display means, and a copying means. The circuit pattern extracting means compares a circuit element from a circuit pattern stored in the available area with a circuit element from a circuit pattern already stored in the unavailable area, and extracts a circuit pattern containing a circuit element that agrees with a stored one. The display means displays the extracted circuit pattern on an input screen. The copying means copies the extracted circuit pattern into the available area according to an operator's entry.
摘要:
A photosensitive polyimide resin composition has: a polyimide resin composition having a polyimide copolymer that is prepared by an imidation reaction of an acid dianhydride with a diamine; and a photosensitizer added to the polyimide resin composition. The polyimide copolymer has a polyimide constitutional unit-to-substituent ratio of 200 to 600, and the polyimide constitutional unit-to-substituent ratio is defined as C=A/B, where A represents a molecular weight of a repeating unit in a polyimide main chain constituting the polyimide copolymer, and B represents a total number of substituents in the repeating unit.
摘要翻译:光敏聚酰亚胺树脂组合物具有:通过酸二酐与二胺的酰亚胺化反应制备的具有聚酰亚胺共聚物的聚酰亚胺树脂组合物; 和加入到聚酰亚胺树脂组合物中的光敏剂。 聚酰亚胺共聚物的聚酰亚胺结构单位取代比为200〜600,聚酰亚胺结构单位与取代比定义为C = A / B,其中A表示聚酰亚胺中重复单元的分子量 构成聚酰亚胺共聚物的主链,B表示重复单元中的取代基的总数。
摘要:
In conventional white balance adjustment, the processing is switched at the boundary of a threshold. When white balance adjustment is done for two regions having values near the threshold and similar color tones, their impressions become greatly different from each other. To prevent this, this invention calculates a white balance adjustment coefficient for each color component forming color image data, corrects the adjustment coefficient so as to be consecutive for each value of the color image data, and performs white balance adjustment based on the corrected adjustment coefficient. In performing a plurality of types of correction processes for image data, it is difficult to execute an optimal combination of correction processes in accordance with an input device. This invention specifies the characteristics of the input device, and controls a combination of correction processes with respect to the image data on the basis of the characteristics, thereby realizing proper correction based on the input device characteristics.
摘要:
p-Hydroxyphenylglycine..alpha.-phenylethanesulfonate which is useful for the production of optically active p-hydroxyphenylglycine and optically active .alpha.-phenylethanesulfonic acid is disclosed. p-Hydroxyphenylglycine..alpha.-phenylethanesulfonate is produced by either reacting DL-p-hydroxyphenylglycine with optically active .alpha.-phenylethanesulfonic acid or reacting (.+-.)-.alpha.-phentylethanesulfonic acid with optically active p-hydroxyphenylglycine to form two diastereomers of DL-p-hydroxyphenylglycine optically active .alpha.-phenylethanesulfonate or optically active p-hydroxyphenylglycine (.+-.)-.alpha.-phenylethanesulfonate, and isolating one diastereomer according to the difference between solubilities of the diastereomers, optionally, combining selective crystallization of one diastereomer and epimerization of another diastereomer in the case of reaction of DL-p-hydroxyphenylglycine and optically active .alpha.-phenylethanesulfonic acid. This reaction is utilized in the resolution of p-hydroxyphenylglycine or .alpha.-phenylethanesulfonic acid by deacidifying the resulting diastereomer.
摘要:
A rotor for use in an induction type a.c. generator and a method for fabricating the same are disclosed. The rotor comprises pole pieces having pointed ends at their peripheries, the pointed ends of one pole piece and the pointed ends of the other pole piece alternating in position and serving as, alternately, north and south magnetic poles; a core or yoke disposed between the pole pieces to magnetically coupling the pole pieces; an insulating bobbin disposed on the core or yoke and between the pole pieces; and an exciting coil wound on the bobbin cylindrically. The core or yoke is in the shape of a barrel and the insulating bobbin is forcibly mounted on the barrel-shaped core by the application of pressure.
摘要:
A shaped heat storage material has a shaped body composed of a binder and heat storage capsules containing a heat storage material therein. And, the shaped body has at least one of a projection, a depressed portion and a hollow structure defining a hollow space therein.
摘要:
A controller for switching the driving status of a car comprising a motor for driving a shift rail of a transfer case, a gear mechanism for transferring the rotation of the motor to the shift rail, a magnet rotating together with the shift rail, and a magnetic sensor element for proving output according to the rotational angle of the magnet, wherein the distance between the magnet and the magnetic sensor element is longer than the position variance of the magnetic sensor.
摘要:
A method of producing a composite sheet in which a through hole formed in a predetermined portion of the first ceramic sheet is buried with a different kind of sheet having substantially the same thickness as the first ceramic sheet, such as a resin sheet a metal sheet or a ceramic sheet of a material different from that of the first ceramic sheet. A first method comprises a step of preparing a first ceramic sheet from a ceramic powder, and a different kind of sheet; a step of forming a through hole in a predetermined portion of the first ceramic sheet; a step of laminating the different kind of sheet on the ceramic sheet in which the through hole is formed; and a step of preparing a composite sheet by pressing the portion of the first ceramic sheet where the through hole is formed from the side of the different kind of sheet, such that the first ceramic sheet and the different kind of sheet are integrated together. A second method comprises a step of preparing a first ceramic sheet and a different kind of sheet, and laminating the first ceramic sheet and the different kind of sheet one upon the other; and a step of preparing a composite sheet by pressing a predetermined portion of the laminate from the side of the different kind of sheet, such that the pressed portion of the different kind of sheet is transferred onto the side of the first ceramic sheet to integrate the first ceramic sheet and the different kind of sheet together. A further method is for producing a laminate by laminating the obtained composite sheet on other first ceramic sheet or on other composite sheet.