Yumiko Kishi

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Typical materials for the actuators in micro machines are shape memory alloys like nickel titanium (TiNi) and piezoelectric compounds like lead zirconate titanate (PZT). For medical application in a future the materials will be required to be deposited directly on surfaces of plastics as thin film in a crystalline structure, since most medical instruments(More)
Polyethylene terephthalate (PET) bottles are widely used as beverage containers due to the easy handling as well as the low cost. They have taken the place of glass bottles in most market. However, PET has something inferior to glass for industrial application. The bottles in a traditional bottling system are sprayed with hydrogen peroxide water or dipped(More)
It is important to not only evaluate granularity but also clarify the factors affecting it in order to improve the graininess of an image. A method for separating graininess into elements on the basis of the fluctuation of the background, lightness, and toner adherent area is proposed. By using this method following estimations will be enabled; 1. By(More)
Micro machines are expected in advanced medical instruments for micro surgery. Typical materials for the actuators are shape memory alloys such as TiNi(titanium nickel) and piezoelectric compounds such as PZT(lead zirconate titanate). For future medical application the materials will be required to be deposited directly on the surfaces of plastics in the(More)
It has been difficult to sputter-deposit crystalline compound directly on a substrate of low heat-resistant material like polymer. In this study a new apparatus is developed which deposits metallic compound film in crystalline structure directly on a substrate at lower temperature than 200°C (473K). The apparatus consists of a magnetron-sputtering(More)
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