Takahashi K. – TechConnect Briefs

The Dispersion of Zirconia nanoparticles : ZIRCOSTAR

Takahashi K., Yao T., Kimura J., Hashimoto H., NIPPON SHOKUBAI CO., LTD., JP

1. Introduction Recently, the LCD and OLED display market demand concerning high refractive index materials increases rapidly. The required refractive index exceeds the upper limit of organic materials that can attain, therefore the research area [...]

Graphene decorated metal nanoclusters as an effective novel catalyst for improving the hydrogen storage behaviour of MgH2

Sterlin Leo Hudson M., Ramesh A., Takahashi K., Central University of Tamil Nadu, IN

Abstract: High volumetric and gravimetric hydrogen density in MgH2 motivates significant research attention over the recent years to make it as a viable hydrogen storage material for fuel cell applications. However, the high thermodynamic stability [...]

Evaluation of Manipulation Probes for Expanding the Range of Capillary Force

Obata K.J., Saito S., Takahashi K., Tokyo Institute of Technology, JP

It is difficult to manipulate a micro-sized object precisely with conventional tools, because the gravity effect becomes extremely small compared to the adhesional one. Therefore, in order to perform reliable micromanipulation, we need to use [...]

A Micromanipulation Method based on the Capillary Force by Phase Transition

Katsuda O., Saito S., Takahashi K., Tokyo Institute of Technology, JP

The size of an object has decreased in the electrical and mechanical engineering field for fabricating highly functional microelectro-mechanical systems and photonic crystals. In micromanipulation, even if we can pickup micro-objects, it is very difficult [...]

Criterion for Electrostatic Detachment of an Adhering Microparticle

Saito S., Himeno H., Takahashi K., Onzawa T., Tokyo Institute of Technology, JP

During micromanipulation, the influence of gravitational force becomes extremely small. The adhesional force is more significant for smaller objects. An adhered object can be detached by electrostatic interaction. In our earlier study, the electrostatic force [...]

Introduction of Micro-Manipulation by Adhesional Force and Dielectric Force

Takahashi K., An Y., Saito S., OnzawaTadao T., Tokyo Institute of Technology, JP

This paper reports the manipulation by both adhesional force and Coulomb force. Applicability of this method is discussed evaluating both of the forces theoretically and experimentally. Adhesional force can be used as attractive force in [...]

Modeling of Surface Tension in Fluidic MEMS Using the Level-Set Method

Takahashi K., Kyushu University, JP

Mixed state of liquid and gas is frequently seen in fluidic MEMS, for example, ink jet printer, heat exchanger, thermo-capillary optical switch, and so on. The surface tension is the most dominant mechanical effect in [...]