摘要:
An erasable image forming material includes a color former, a developer, and a decolorizer and is erasable by contact with an erase solvent. Free energy &agr; required for the decolorizer and the developer to form a complex and free energy &bgr; required for the color former and the developer to form a complex have a relationship represented by &agr;≦&bgr;≦10 Kcal/mol.
摘要:
A decolorizable image forming material comprising a color former, a developer and a decolorizer, the decolorizer comprising a highly amorphous phase separation inhibitor and a slightly amorphous phase separation inhibitor. A cyclic sugar alcohol is used as the highly amorphous phase separation inhibitor, and a non-aromatic cyclic compound having five-membered or larger ring substituted by a hydroxyl group or a derivative of a cyclic sugar alcohol is used as the slightly amorphous phase separation inhibitor. The decolorizable image forming material can be decolored easily after image formation by a solvent and the decolored state of which can be maintained stably, thereby making it possible to reuse paper sheets.
摘要:
A method for driving an image sensor, the image sensor including a pair of first and second main electrodes fabricated on a semiconductor layer in such a manner that the first and second main electrodes are separated with each other via a light receiving region. An insulating layer is stacked on the semiconductor layer and an auxiliary electrode then stacked on the insulating layer. The method includes the steps of applying a constant bias voltage to the auxiliary electrode over both a read time period and a non-read time period of a signal current of the image sensor.
摘要:
A speaker which is thin but which is capable of providing high-fidelity reproduction and ensuring a suitable level of sound pressure even when it is brought close to a wall. A closed chamber is formed behind one part of a disphragm mounted in an enclosure, and an open chamber is formed behind another part of the diaphragm. At least one voice coil driver unit is connected to the diaphragm. The phase difference between sounds radiated from the front and rear surfaces of the diaphragm is increased as large as possible by using an acoustic duct for the sound radiated through the open chamber, thereby minimizing cancellation of sounds and improving the sound pressure level.
摘要:
A thin film static induction transistor comprises a first n type semiconductor layer provided on an insulative substrate and a second n type semiconductor layer mounted on the first layer. The second layer includes a first region having a first level top wall and a second region having a second level top wall lower that the first level top wall. The first and second regions are alternately arranged. A third semiconductor layer is provided on the first level top wall. A recess is formed which includes side walls of the third layers, side wall of the first regions and the second level top wall. A fourth semiconductor layer is deposited on the inner wall of the recess, and a gate electrode is provided on the fourth layer. The fourth layer consists of an intrinsic semiconductor layer or a semiconductor layer having a lower impurity concentration than the second layer.
摘要:
According to one embodiment, a liquid ink includes a leuco dye, a developer, and a solvent. The developer is selected from wherein X1 is selected from H and CH3, X2 is selected from H and OH, X5 is selected from C(CH3)2 and CO, and X4 is selected from phenyl group and alkyl group.
摘要:
The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is excellent in bending strength, dimensional stability and installing property such as handling property, flexibility performance and nail performance, as well as a process for manufacturing the product.Namely, the fiber reinforced cement composition comprises the following raw materials: a hydraulic inorganic material, a siliceous material and a woody reinforcement, wherein the siliceous material is an inorganic hollow material and/or an inorganic spherical material and a finely dividing inorganic hollow material and/or a finely dividing inorganic spherical material.The effects of the present invention, it is possible to obtain a fiber reinforced cement product having good bending strength, dimensional stability and installing property such as handling property, flexibility performance and nail performance.
摘要:
The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is inexpensive and economical, and to provide pushing forward disposal of defective products.Namely, the fiber reinforced cement composition comprises a hydraulic inorganic material, a siliceous material, a woody reinforcement, a finely dividing fiber reinforced cement product and/or a finely dividing intermediate of fiber reinforced cement product which is produced by said raw materials.
摘要:
An erasable image forming material includes a color former, a developer, and a binder resin, the color former containing Crystal Violet Lactone and a specific fluorane compound can enhance light fastness as well as heat decolorizing performance.
摘要:
A decolorable image forming material contains a color former and a developer, that develop a colored state through interaction therebetween and can be decolored by heating or contact with a solvent, in which the developer contains two or more compounds whose deference in molecular weight is 15 or more.