摘要:
An image forming device is disclosed which has: an image holding member which rotates; a charging roller press-contacting and being rotated by the image holding member, and charging the image holding member; and a cleaning roller press-contacting and being rotated by the charging roller, and cleaning the charging roller. The cleaning roller has a core whose both end portions are rotatably supported, and a cleaning member which is formed from a roller-shaped porous elastic body and is provided at a peripheral surface of the core. Axial direction end portion sides of the cleaning member are formed to be thicker than an axial direction central portion of the cleaning member.
摘要:
A process for producing muscone by methyl addition to the 1,4-conjugation of 2-cyclopentadecenone. By the process, muscone is produced in high yield not under reaction condition including an extremely low temperature and a low concentration but under practical condition. The process comprises subjecting 2-cyclopentadecenone to a 1,4-conjugation addition reaction with an organometallic methylation reagent in the presence of a copper or nickel catalyst and an enol anion scavenger to obtain a 3-methyl-1-cyclopentadecene derivative represented by General Formula (II) and then solvolyzing the enol moiety of the 3-methyl-1-cyclopentadecene derivative to obtain muscone.
摘要:
A plating-target material of the present invention includes a layer-A to be subjected to electroless plating. The surface roughness of the layer-A is such that an arithmetic mean roughness Ra measured at a cutoff value of 0.002 mm is less than 0.5 μm. The 90° anti-peeling adhesive force of the layer-A is 1.0 N/25 mm or less. Furthermore, the layer-A includes a polyimide resin. Further, a plating-target material of the present invention includes the layer-A to be subjected to electroless plating. The layer-A includes a resin, and the sheet containing the layer-A has an elongation modulus of 1.8 GPa or less. The plating-target material of the present invention has a high adhesiveness to an electroless plating film formed on its surface, even if the surface is not so rough, and it is possible to favorably form electroless plating on the entire surface. Accordingly, the plating-target material of the present invention is suitably applicable to manufacturing of a printed-wiring board or the like. Furthermore, the present invention provides a polyamic acid solution, and a polyimide resin solution for use in the plating-target material, and a printed-wiring board made by using them.
摘要:
Provided is a developing apparatus, including: a developer carrying member for carrying a developer containing toner and a carrier; a first chamber having an opening in which the developer carrying member is disposed; a carrying member for carrying the developer in a longitudinal direction of the developer carrying member, the carrying member being disposed in the first chamber; a second chamber to which the developer is supplied from the first chamber through a first connection portion communicating with the first chamber and which supplies the developer to the first chamber through a second connection portion communicating with the first chamber; a spiral carrying member for agitating and carrying the developer by rotation, the spiral carrying member being obliquely disposed in the second chamber at an angle of 2° or more and 10° or less; and a developer replenishing apparatus for replenishing a developer for replenishment to a developer replenishment position in the second chamber, in which when a height with respect to a rotation axis of the spiral carrying member of an intersection of a circumference of the spiral carrying member and a developer surface in a first vertical plane on a downstream side of a developer carrying direction with respect to the developer replenishment position is denoted by Ha (mm) and a height with respect to the rotation axis of an intersection of the circumference of the spiral carrying member and the developer surface in a second vertical plane on a 50-mm downstream side of the first vertical plane in a direction of a horizontal direction component of the developer carrying direction is denoted by Hb (mm), Ha (mm) and Hb (mm) in a state where an attitude of the spiral carrying member in the first vertical plane and an attitude of the spiral carrying member in the second vertical plane are the same satisfy the relationship of Ha (mm)+2 (mm)≦Hb (mm).
摘要:
A balloon device useful for dissecting tissue or retracting tissue for the purpose of providing access for laparoscopic surgery, the device including a balloon which inflates to a shape specially suitable for the surgical procedure and the anatomical region of deployment. The present device, when configured with a tapered dissection balloon, is particularly useful for subfascial endoscopic perforator surgical procedures.
摘要:
The present invention relates to thermosetting resin compositions which are suitably used for manufacturing circuit boards, such as flexible printed circuit boards (FPCs) and build-up circuit boards, and to multilayer bodies and circuit boards manufactured using such thermosetting resin compositions. A thermosetting resin composition contains a polyimide resin component (A), a phenol resin component (B), and an epoxy resin component (C). The mixing ratio by weight (A)/[(B)+(C)] is in a range of 0.4 to 2.0, the mixing ratio by weight being the ratio of the weight of the component (A) to the total weight of the component (B) and the component (C). By using such a thermosetting resin composition, it is possible to manufacture multilayer bodies and circuit boards which are excellent in dielectric characteristics, adhesiveness, processability, heat resistance, flowability, etc. A thermosetting resin composition contains a polyimide resin (A), a phosphazene compound (D), and a cyanate ester compound (E). The phosphazene compound (D) includes a phenolic hydroxyl group-containing phenoxyphosphazene compound (D-1) and/or a crosslinked phenoxyphosphazene compound (D-2) prepared by crosslinking the phenoxyphosphazene compound (D-1), the crosslinked phenoxyphosphazene compound (D-2) having at least one phenolic hydroxyl group. By using such a thermosetting resin composition, it is possible to manufacture multilayer bodies and circuit boards which are excellent in dielectric characteristics, processability, heat resistance, and flame retardance.
摘要:
An image forming apparatus having a photosensitive drum bearing an electrostatic image, and a developing sleeve carrying a developer for developing the electrostatic image, the developing sleeve is in non-contact with the photosensitive drum, and is designed to be flexed so that the surface of the developing sleeve may go away from the surface of the photosensitive drum, and the rotation axis of the photosensitive drum and a straight line linking the centers of the cross-sections of the developing sleeve in a direction perpendicular to the developing sleeve at the both end portions may be in the skew relationship so that the value of the difference between the closest distance at the central portion of a maximum electrostatic image forming width and the closest distance at the both end portions thereof may be smaller than the value of the component of the flexure amount of the developing sleeve in the direction of the closest distance.
摘要:
A laminate which comprises a thermoplastic polyimide layer and a metal layer, or comprises a non-thermoplastic polyimide film layer and, formed on one or both surfaces, a thermoplastic polyimide layer and a metal layer; and a printed wiring board comprising the laminate. The laminate can be used for forming a high density circuit thereon, exhibits good resistance to further processing such as desmearing and excellent adhesion, and is excellent in adhesion reliability in a high temperature atmosphere.
摘要:
Provided is a developing apparatus, including: a developer carrying member for carrying a developer containing toner and a carrier; a first chamber having an opening in which the developer carrying member is disposed; a carrying member for carrying the developer in a longitudinal direction of the developer carrying member, the carrying member being disposed in the first chamber; a second chamber to which the developer is supplied from the first chamber through a first connection portion communicating with the first chamber and which supplies the developer to the first chamber through a second connection portion communicating with the first chamber; a spiral carrying member for agitating and carrying the developer through rotation, the spiral carrying member being obliquely disposed in the second chamber at an angle of 2° or more and 10° or less; and a developer replenishing apparatus for replenishing a developer for replenishment to a developer replenishment position in the second chamber, in which when a height with respect to a rotation axis of the spiral carrying member of an intersection of a circumference of the spiral carrying member and a developer surface in a first vertical plane on a downstream side of a developer carrying direction with respect to the developer replenishment position is denoted by Ha (mm) and a height with respect to the rotation axis of an intersection of the circumference of the spiral carrying member and the developer surface in a second vertical plane on a 50-mm downstream side of the first vertical plane in a direction of a horizontal direction component of the developer carrying direction is denoted by Hb (mm), Ha (mm) and Hb (mm) in a state where an attitude of the spiral carrying member in the first vertical plane and an attitude of the spiral carrying member in the second vertical plane are the same satisfy the relationship of Ha (mm)+2 (mm)≦Hb (mm).
摘要:
An apparatus for estimating a lifetime of a cutter for cutting a sheet comprising: a detector for detecting a value of a parameter representing a cutting resistance during sheet cutting; a comparator for comparing the detected value of the parameter with a predetermined reference value; and an output element for outputting a result based on the comparison.