Vol. 4, No. 2 May 2004 Contents

Effect of Al-addition on C-axis Orientation of Ba-ferrite Film Deposited on Amorphous Aluminum Oxide (α-AIO) Layer
N. N. Shams, M. Matsumoto, and A. Morisako……43

Investigation of Magnetic Anisotropy for α-Fe/Nd2Fe14B Composition Alloy as Exchange-Spring Magnets Prepared Using Hot-Upsetting Technique
Y. Kawashita, T. Tayu, T. Sugiyama, H. Ono, H. Takabayashi, and T. Iriyama……46

A Repulsive-Type Magnetic Bearing Micro-Mass Measurement System and Measurement of Resolution
A. Hussien, T. Okada, T. Ohji, S. Yamada, and M. Iwahara……51

Proposed New Circulator with Coplanar Waveguide Structure
S. Yamamoto, K. Shitamitsu, H. Kurisu, M. Matsuura, K. Oshiro, H. Mikami, and S. Fujii……56

High-Frequency Electromagnetic Simulation of an Extremely Low-Height Circulator Using a Microstrip Y-Junction
K. Oshiro, S. Yamamoto, T. Tanaka, H. Kurisu, M. Matsuura, H. Mikami, S. Fujii, and S. Murakami……60

Design of Magnetic Actuator Intended for Artificial Heart Drive
H. Saotome, K. Shimizu, and T. Okada……64