Abstract: A fluorocarbon resin composite includes a fluorocarbon resin layer on a base, in which a fluorocarbon resin constituting the fluorocarbon resin layer is crosslinked by electron beam irradiation, and the base has a desired shape obtained by machining. The fluorocarbon resin is composed of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer, polytetrafluoroethylene, or a mixture of the tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and polytetrafluoroethylene. A fluorocarbon resin composite, cookware, and a roller and a belt for use in office automation equipment are each produced by applying an uncrosslinked fluorocarbon resin on a base, subjecting the fluorocarbon resin to electron beam irradiation in a low-oxygen atmosphere to crosslink the fluorocarbon resin while the temperature of the fluorocarbon resin is maintained at a temperature equal to or higher than the melting point of the fluorocarbon resin, and machining the base into a desired shape.

Abstract: A fluorocarbon resin composite includes a fluorocarbon resin layer on a base, in which a fluorocarbon resin constituting the fluorocarbon resin layer is crosslinked by electron beam irradiation, and the base has a desired shape obtained by machining. The fluorocarbon resin is composed of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer, polytetrafluoroethylene, or a mixture of the tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and polytetrafluoroethylene. A fluorocarbon resin composite, cookware, and a roller and a belt for use in office automation equipment are each produced by applying an uncrosslinked fluorocarbon resin on a base, subjecting the fluorocarbon resin to electron beam irradiation in a low-oxygen atmosphere to crosslink the fluorocarbon resin while the temperature of the fluorocarbon resin is maintained at a temperature equal to or higher than the melting point of the fluorocarbon resin, and machining the base into a desired shape.

Abstract: A profile measuring instrument includes: a fixed member of which position relative to a workpiece having a surface to be profile-measured is fixed; a scanning member supported by the fixed member and movable in a scan direction along the surface of the workpiece relative to the fixed member; a laser interferometer that detects a displacement of the surface of the workpiece along the scan direction. The laser interferometer includes: a polarizing beamsplitter provided to the scanning member; a reference mirror fixed to the fixed member; a measurement optical path extending from the polarizing beamsplitter to the workpiece; and a reference optical path extending from the polarizing beamsplitter to the reference mirror. A difference between an optical path length of the measurement optical path and an optical path length of the reference optical path is a predetermined tolerable error or less.

Abstract: A fixing roller/fixing belt having an elastic layer and a surface layer formed on a substrate material in the enumerated order, wherein the surface layer is a layer formed by thermally shrinking a PFA tube, and the surface layer and the elastic layer are bonded together through a PFA-containing adhesive material. In particular, a fixing roller/fixing belt in which the ratio of heat shrinkage of the PFA tube forming the surface layer is 3 to 20%. Also, a fixing roller/fixing belt, in which the quantity of PFA contained in the PFA-containing adhesive material is 20 to 30 wt %.

Abstract: Provided is a heating fixing roller which includes a tubular base member and a fluororesin layer provided on an outer circumferential surface of the base member directly or through an adhesive layer, the heating fixing roller being characterized in that the fluororesin layer contains phosphorus-doped tin oxide. The heating fixing roller has a surface resistance capable of stably and effectively preventing the occurrence of electrostatic offsets, and also has an excellent releasing property. Also provided is a process for producing the heating fixing roller, characterized by including the steps of applying a fluororesin dispersion containing an aqueous dispersion of phosphorus-doped tin oxide onto a tubular base member or an adhesive layer disposed on an outer circumferential surface of the tubular base member, and then sintering the fluororesin.

Abstract: Provided are a method for producing a roller for office automation (OA) equipment, the roller capable of realizing an increase in the printing speed and having a good releasing property, and a roller for OA equipment. The method for producing a roller for OA equipment, the roller including a fluororesin layer provided on an outer circumferential surface of a tubular base either directly or with an intermediate layer therebetween, includes the steps of preparing a fluororesin coating material containing a tetrafluoroethylene-perfluoroalkylvinylether copolymer (PFA) and polytetrafluoroethylene (PTFE) in a ratio of 99:1 to 50:50 (mass ratio); applying the fluororesin coating material onto an outer circumferential surface of a tubular base either directly or with an intermediate layer therebetween; baking the fluororesin coating material at a temperature of 340° C. or higher to form a fluororesin layer; and after baking, cooling the fluororesin layer at a cooling rate of 20° C./min or less.

Abstract: A probe microscope includes a cantilever having a probe for contact with an object, first and second displacement detection optical systems, and an object lens. The first displacement detection optical system includes a first light source and a first displacement detecting section that detects displacement of the cantilever. The second displacement detection optical system includes a second light source and a second displacement detecting section that detects displacement of the object. The object lens is provided between the cantilever and the first light source and between the cantilever and the second light source. The object lens has a focal position for the light that is emitted from the first light source and has a first wavelength at the position of the cantilever and has a focal position for the light that is emitted from the second light source and has a second wavelength at the position of the object.

Abstract: A polyimide tube composed of a polyimide resin composition in which 5 to 23.5 volume percent of boron nitride and 1 to 15 volume percent of an acicular substance are dispersed as a filler in a polyimide resin on the basis of the total volume of the composition, a method of producing the tube, a method of producing a polyimide varnish used for producing the tube, and a fixing belt including the tube as a base member are provided.

Abstract: A measuring instrument has a light source for irradiating light including rays of light having the wavelength of excitation light, an objective lens for focusing light irradiated from the light source to a predetermined focusing position, a first mirror for directly reflecting light from the objective lens, a second mirror for reflecting light reflected by the first mirror, the second mirror having an aperture P, and a measuring device for measuring light generated from a sample and having a wavelength different from the wavelength of excitation light, and the sample being arranged between the first mirror and the second mirror, the focusing position of the objective lens being made to agree with the position of the aperture P, and the measuring device being adapted to measure light of a wavelength different from the wavelength of excitation light generated from the sample and passing through the aperture P.

Abstract: A probe microscope includes a cantilever having a probe, a displacement detecting optical system, an observation optical system, an objective lens, and a parallel glass. The displacement detecting optical system includes a first light source and a light detecting element. The observation optical system includes a second light source, an image forming lens, and a camera. The objective lens is disposed between the cantilever and the first and second light sources, and is commonly used by the displacement detecting optical system and the observation optical system. The parallel glass is capable of being inserted and retracted freely between the cantilever and the objective lens to adjust a focal point of the objective lens.

Abstract: Provided is a heating fixing roller which includes a tubular base member and a fluororesin layer provided on an outer circumferential surface of the base member directly or through an adhesive layer, the heating fixing roller being characterized in that the fluororesin layer contains phosphorus-doped tin oxide. The heating fixing roller has a surface resistance capable of stably and effectively preventing the occurrence of electrostatic offsets, and also has an excellent releasing property. Also provided is a process for producing the heating fixing roller, characterized by including the steps of applying a fluororesin dispersion containing an aqueous dispersion of phosphorus-doped tin oxide onto a tubular base member or an adhesive layer disposed on an outer circumferential surface of the tubular base member, and then sintering the fluororesin.

Abstract: A shape measuring apparatus includes a probe for scanning across a surface to be measured, while vibrating up and down; a minute-vibration generation section for vibrating the probe up and down; a vertical movement control section for moving the probe up and down to keep a constant contact force or a constant distance between the surface to be measured and the probe; a scanning section for scanning the surface to be measured with the probe; a displacement sensor for measuring the vertical displacement of the probe and outputting a probe displacement signal; and a signal processing section for obtaining information about the contact force or the distance between the surface to be measured and the probe from a high-frequency component of the probe displacement signal, and for obtaining information about profile of the surface to be measured from a low-frequency component of the signal obtained when the surface to be measured is scanned such that the distance or the contact force is kept constant.

Abstract: A probe microscope includes a cantilever having a probe for contact with an object, first and second displacement detection optical systems, and an object lens. The first displacement detection optical system includes a first light source and a first displacement detecting section that detects displacement of the cantilever. The second displacement detection optical system includes a second light source and a second displacement detecting section that detects displacement of the object. The object lens is provided between the cantilever and the first light source and between the cantilever and the second light source. The object lens has a focal position for the light that is emitted from the first light source and has a first wavelength at the position of the cantilever and has a focal position for the light that is emitted from the second light source and has a second wavelength at the position of the object.

Abstract: [Object] There are provided a fluorocarbon resin composite having improved abrasion resistance while nonadhesiveness, which is a feature of a fluorocarbon resin, is maintained, cookware, and a roller and a belt for use in office automation equipment. [Solving Means] A fluorocarbon resin composite includes a fluorocarbon resin layer on a base, in which a fluorocarbon resin constituting the fluorocarbon resin layer is crosslinked by electron beam irradiation, and the base has a desired shape obtained by machining. The fluorocarbon resin is composed of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer, polytetrafluoroethylene, or a mixture of the tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and polytetrafluoroethylene.

Abstract: Provided are a polyimide tube including a polyimide resin composition, wherein the polyimide resin composition contains a polyimide resin in which an acicular highly thermally conductive filler such as carbon nanotubes is dispersed in 15 volume percent or more relative to the total volume of the composition; the acicular highly thermally conductive filler has an orientation of 1.3 or more, the orientation being represented by the modulus of elasticity of the polyimide resin composition in the circumferential direction/the modulus of elasticity of the polyimide resin composition in the axial direction; and the polyimide tube has high thermal conductivity, is excellent in terms of mechanical strength and indentation strength, and provides a high fixing property and an excellent offsetting property; a process for producing such a tube; and a fixing belt including such a tube serving as a base member.

Abstract: A measuring device includes a light source, a holding member for holding a sample, a first concave mirror and a second concave mirror, the second concave mirror being arranged on the light path from the light source to the holding member, the first concave mirror being arranged vis-a-vis the second concave mirror with the holding member interposed between them, the first concave mirror and the second concave mirror being arranged with their concave surfaces facing each other, the first concave mirror being larger than the second concave mirror in terms of their outer dimensions.

Abstract: A door handle device is provided with: a handle member 10; a handle frame member 20 swingably supporting the handle member 10, the handle frame member being fixed to a door 50; and a key cylinder cover 49 integrated with a key cylinder device 30 capable of locking the door 50. The handle member 10 has a swing center axis O about which the handle member 10 swings relative to the handle frame member 20. On the slide center axis O, an engagement pin 14 is interposed between the handle member 10 and the key cylinder cover 49.

Abstract: A probe microscope includes a cantilever having a probe, a displacement detecting optical system, an observation optical system, an objective lens, and a parallel glass. The displacement detecting optical system includes a first light source and a light detecting element. The observation optical system includes a second light source, an image forming lens, and a camera. The objective lens is disposed between the cantilever and the first and second light sources, and is commonly used by the displacement detecting optical system and the observation optical system. The parallel glass is capable of being inserted and retracted freely between the cantilever and the objective lens to adjust a focal point of the objective lens.

Abstract: The invention offers an OA apparatus roller that has a surface layer formed by applying fluororesin and baking it, that has various excellent properties with-out impairing the parting ability and thermal conductivity, and that is suitable for mass production. An OA apparatus roller is produced by forming an elastic layer and a surface layer in this order on a core metal. In the roller, the surface layer is composed of a plurality of fluororesin layers and has a thickness of 6 to 30 ?m. An OA apparatus roller has a structure in which of the multiple fluororesin layers forming the surface layer, at least one layer is a fluororesin layer containing filler. An OA apparatus roller has a structure in which of the multiple fluororesin layers forming the surface layer, the outer-most layer is a fluororesin layer containing no filler and at least one layer other than the outermost layer is a fluororesin layer containing filler.

Abstract: A fixing roller/fixing belt having an elastic layer and a surface layer formed on a substrate material in the enumerated order, wherein the surface layer is a layer formed by thermally shrinking a PFA tube, and the surface layer and the elastic layer are bonded together through a PFA-containing adhesive material. In particular, a fixing roller/fixing belt in which the ratio of heat shrinkage of the PFA tube forming the surface layer is 3 to 20%. Also, a fixing roller/fixing belt, in which the quantity of PFA contained in the PFA-containing adhesive material is 20 to 30 wt %.