摘要:
The present invention provides a method of producing an electrophotographic photosensitive member using a dispersion solution that shows high liquid stability in long-period storage and hardly causes aggregation of charge-transporting pigment particles during drying a coating. The method of producing an electrophotographic photosensitive member having a charge-transporting layer comprises a step of forming a coating film by applying a dispersion solution comprising polyolefin polymer particles and charge-transporting pigment particles as dispersoids and comprising a dispersion medium, and then forming the charge-transporting layer by heating the coating film and melting the polyolefin polymer particles, wherein the particles consisting of the polyolefin polymer particles and the charge-transporting pigment particles in the dispersion solution have a number average particle diameter of 50 nm or more and 300 nm or less and a degree of dispersion (standard deviation/number average particle diameter) of 1.0 or less.
摘要:
To provide an electrophotographic photosensitive member that can reproduce good images with less positive ghost and also has a good photosensitivity, the electrophotographic photosensitive member is incorporated in its photosensitive layer with a copolymer having a repeating structural unit represented by the formula (1) and a repeating structural unit represented by the formula (2), or a copolymer having a repeating structural unit represented by the formula (1) and a repeating structural unit represented by the formula (3). Z1-A-Z2-E1 (1) Z3-A—Z4—W2—B2—W2 (2) Z5—B3—Z6-E4 (3)
摘要:
An antenna device includes a ground plate, a dielectric body disposed at an end of the ground plate, an L-shaped foldable antenna disposed at one side of the dielectric body, a wide-band monopole antenna disposed at an opposite side of the dielectric body, and a power supply disposed between the L-shaped foldable antenna and the wide-band monopole antenna.
摘要:
A fiber treatment chemical includes a lactic ester derivative represented by the following formula (1): ##STR1## wherein RCO means a fatty acid having 12-32 carbon atoms, n stands for a number of 1-4, and X denotes hydrogen, a monovalent or divalent metal, ammonium, or amine. A fiber treatment composition comprising this fiber treatment chemical, and fiber and textile goods are treated with the fiber treatment chemical or fiber treatment composition.
摘要:
An electrophotographic photosensitive member comprises a conductive support, an intermediate layer provided on the conductive support, and a photosensitive layer provided on the intermediate layer, in which at least one of the intermediate layer and the photosensitive layer comprises a compound represented by the following formula (1):
摘要:
The present invention is an electrophotographic photosensitive member including a conductive support, an intermediate layer which is placed on the conductive support, and a photosensitive layer which is placed on the intermediate layer, wherein the intermediate layer comprises a metal-oxide particle and a compound having a structure represented by the following formula (1):
摘要:
The electrophotographic photosensitive member includes a support; an intermediate layer, a charge generation layer and a charge transport layer which are provided on a conductive support in this order, in which the intermediate layer contains an ethylene-acrylic acid binary copolymer and a polyolefin resin in which repeating structural units are contained in a particular ratio.
摘要:
A portable terminal includes a small-sized built-in antenna apparatus having an excellent electric performance. The built-in antenna apparatus includes a ground plate and an antenna unit. The ground plate includes a feed point. The antenna unit is disposed adjacent to an end of the ground plate. The antenna unit includes a reverse L-shaped antenna element. One end of the L-shaped antenna element is connected to the feed point and an opposite end of the L-shaped antenna has a helical shape. A magnetic piece is loaded at a portion where current distribution of the L-shaped antenna element is high, and a dielectric piece is loaded at a portion where current distribution of the L-shaped antenna element is low.
摘要:
Disclosed is a multi-band antenna device with a simplified design and fabrication method, which can be suitably mounted to a mobile phone, or the like. The disclosed antenna device includes a substrate, and an antenna element connected to a feed point of the substrate. The antenna element includes a right-left asymmetrical first antenna element, and a second antenna element mounted to the first antenna element, which are integrally formed, and is provided on the surface of a dielectric substance. The antenna device can be embedded in the terminal while obtaining a good VSWR value over a wide-band by the first antenna element. Also, in the antenna device, in a low frequency band which cannot be covered by the first antenna element, it is possible to obtain a good VSWR value by the second antenna element.
摘要:
A wire winding apparatus of the invention can reduce the burden of momentum on the side of the nozzle cooperated with the spindle shaft in winding operation, thereby to enable an effective winding operation. The winding apparatus comprises a carrier C carrying at least one bobbin B to be wound with wire, a nozzle 3ba for supplying the wire to be wound around the bobbin B, a spindle shaft 3ca for rotating the bobbin B, a working table 3a disposed opposite to the nozzle 3bc and spindle shaft 3ca so as to introduce the carrier into between the nozzle 3bc and spindle shaft 3ca, wherein the spindle shaft 3ca is retractable relative to the bobbin B carried on the carrier C fed onto the working table 3a so as to allow the bobbin B to move between the carrier C and nozzle 3ba.