Abstract: An information processing apparatus includes: a memory configured to store correspondence information, the correspondence information including a word explaining each of a plurality of types of geometric tolerances using a dimensional tolerance method; and a processor coupled to the memory, the processor being configured to extract geometric tolerance information from drawing data in which the shape or structure of an article is defined by a geometric tolerance method, the geometric tolerance information including one or more of parameters thus set for the article, the one or more of parameters including at least any of a geometric tolerance type, a tolerance range, and a datum symbol, generate a word corresponding to the geometric tolerance information based on the correspondence information by referring to the memory, and output conversion result information including the generated word.

Abstract: An interference check apparatus that includes: a memory configured to store a latest edit time stamp related to at least one of a profile or a position for each of the plurality of components, and to store an edit time stamp for each of the plurality of components at an interference check execution time and to store an interference check data representing an execution result of an interference check between components out of the plurality of components; and a processor configured to execute a procedure, the procedure comprising: determining a validity of the interference check data stored based on the latest edit time stamp of each of the plurality of components and the edit time stamp of components when the interference check is executed contained in the interference check data.

Abstract: A tolerance analyzing apparatus for performing a tolerance analysis based on design data includes an assembly definition unit that allows a user to make an assembly definition and define a degree of freedom for a constituent component, and a determination unit determining a datum type corresponding to a count value based on a datum determination reference table. The determination unit obtains the count value by counting a number of normals having the same direction at an assembly location of the constituent component, a constrained degree of translational freedom in the normal direction, and a constrained degree of rotational freedom about an axis perpendicular to the normal based on the assembly definition and the degree of freedom of the constituent component. The apparatus also includes an output unit that outputs the datum type determined by the determination unit.

Abstract: A drawing correction assisting method executed by a computer, the method includes: dividing a drawing area of two-dimensional drawing data into unit areas and storing positional information for every unit area in a storage unit; allocating at least one of the unit areas to each of the plurality of drawing elements included in the drawing area on the basis of arrangement information about each the drawing element and the positional information for every unit area and storing association information associating each drawing element with the allocated at least one unit area in the storage unit; and determining whether interference occurs between the plurality of drawing elements on the basis of the presence of duplication of the allocated unit areas in the stored association information.

Abstract: The present invention aims at surely and efficiently calculating size tolerances of a plurality of parts constituting a structure with the configuration that includes a tentative size tolerance setting section setting tentative size tolerances of the plurality of parts based on design data of the structure and part information of the plurality of parts; a primary analyzing section calculating a quality of the structure and sensitivities of the plurality of parts based on the tentative size tolerances set by the tentative size tolerance setting section; a judging section judging whether or not the quality satisfies a desired quality which the structure demands; and a secondary analyzing section calculating, if the judging section judges that the quality does not satisfy the desired quality, the size tolerances of the plurality of parts using the sensitivities such that the structure satisfies the desired quality.

Abstract: A tolerance analyzing/calculating system analyzes and examines the size tolerance of each component configuring a structure with respect to a size tolerance at the time of assembly of the structure designed with design data. This system comprises a size condition setting unit for defining design data, and the size tolerance of each component, a first analysis executing unit for obtaining a variance or a deviation by making a primary analysis with the use of the size tolerance defined by the size tolerance setting unit, and an optimum minimum gap calculating unit for calculating an optimum minimum gap value by inversely calculating a gap value, which satisfies quality required for a design specification value, with the use of the variance or the deviation obtained by the primary analysis executing unit.

Abstract: The present invention aims at surely and efficiently calculating size tolerances of a plurality of parts constituting a structure with the configuration that includes a tentative size tolerance setting section setting tentative size tolerances of the plurality of parts based on design data of the structure and part information of the plurality of parts; a primary analyzing section calculating a quality of the structure and sensitivities of the plurality of parts based on the tentative size tolerances set by the tentative size tolerance setting section; a judging section judging whether or not the quality satisfies a desired quality which the structure demands; and a secondary analyzing section calculating, if the judging section judges that the quality does not satisfy the desired quality, the size tolerances of the plurality of parts using the sensitivities such that the structure satisfies the desired quality.

Abstract: It is an object of the present invention to reduce setting errors of the degrees of freedom in an assembly definition of a component manufactured by a CAD device. In an assembly definition database, a plurality of assembly definition data is registered in advance, each of which includes a name of assembly definition, a definition order, a shape of the definition part, data expressing the degrees of freedom and the like. A determination unit in the CAD device compares shape data of the definition part in the assembly definition data selected by an operator with shape data of the specified set-up part of a component, and determines whether or not they match each other. When the above shape data matches, the degrees of freedom in the assembly definition data is set as the degrees of freedom of the specified part of the component.

Abstract: In a method for forming a color image by using a contact type nonmagnetic one-component developing device, a flat sheet-like blade made of a metal flexible member and having a distal end thereof chamfered is used inside the developing device in combination with a toner having a glass transition point of 55 to 70° C. and a weight average particle diameter of 6.0 to 10.0 &mgr;m, and containing up to 20 number % of particles having particle diameters of 5 &mgr;m or below, as a developer. The developing device is simple in construction, can provide high image quality and can, moreover, provide a highly reliable image formation method.

Abstract: A toner developing quantity detection unit operates a plurality of electrostatic recording units to transfer Y, M, C and K color component toner marks onto a belt. A toner developing quantity correction unit detects toner developing quantities per unit area of color toners on the basis of detection signals of the color component toner marks on the belt optically detected by a sensor. The toner developing quantity correction unit corrects the toner developing quantities so as to allow the toner consuming quantities of the plurality of electrostatic recording units to be substantially the same level, on the basis of the thus detected toner developing quantities.