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- Takahiro Sato, Kota Watanabe, +6 authors Atsushi Furuya
- IEEE Transactions on Magnetics
- 2013

This paper presents three-dimensional shape optimization of inductors for the dc-dc converters, in which the nonconforming voxel-based finite element method (FEM) is employed to realize fast FE meshâ€¦ (More)

- K.. Komagaki, K.. Yamada, +5 authors M.. Takahashi
- IEEE Transactions on Magnetics
- 2007

We examined the magnetic properties of CoFeB/MgO/CoFeB based magnetic tunnel junctions (MTJs) with L1<sub>2(</sub>ordered)-Mn<sub>3</sub>Ir or gamma(disordered)-Mn<sub>75</sub>Ir<sub>25</sub> as anâ€¦ (More)

- Tadashi Ataka, Atsushi Furuya, +4 authors Hirotaka Oshima
- 2015 IEEE Magnetics Conference (INTERMAG)
- 2015

It is widely known that coercivity of permanent magnets depends on crystal grain size, temperature, the properties of grain boundaries, and so on. Nevertheless, the detailed mechanism has not beenâ€¦ (More)

- Yasu Sudo, Kimitaka Watanabe, +5 authors Y.. Uehara
- INTERMAG Asia 2005. Digests of the IEEEâ€¦
- 2005

This paper describes a new type of common-mode filter for advanced digital signal interface with a data transfer rate of Gbps, such as IEEE 1394b (0.8-3.2 Gbps) and HDMI (high definition multimediaâ€¦ (More)

- K.. Noma, Moe Matsuoka, H.. Kanai, Y.. Uehara
- INTERMAG 2006 - IEEE International Magneticsâ€¦
- 2006

We reported that the saturation magnetization (B<sub>s(FeCo)</sub>) of Fe<sub>70</sub>Co<sub>30</sub> sublayers in sputtered [Fe<sub>70</sub>Co<sub>30</sub>/Pd]<sub>n</sub> super-lattice film was asâ€¦ (More)

- K.. Noma, K.. Komagaki, Kazuo Sunaga, H.. Kanai, Y.. Uehara, Toshihiko Umehara
- IEEE Transactions on Magnetics
- 2008

The atomic weight of a sputtering gas is very effective for crystallographic characteristics of a sputter-deposited magnesium oxide (MgO) film. The calculations of an elementary process of aâ€¦ (More)

- Shumpei Ito, Takeshi Mifune, +7 authors Atsushi Furuya
- IEEE Transactions on Magnetics
- 2013

An equivalent circuit model is proposed to represent ferrite magnetic properties under ac and dc fields phenomenologically, where the H-input and B-input play models are used to handle hystereticâ€¦ (More)

- Hidetoshi Suzuki, N. Sugiyama, +5 authors Y.. Uehara
- IEEE Transactions on Magnetics
- 2005

In order to miniaturize the quarter wavelength transmission-line transformer for high frequency impedance matching, a possibility of a spiral microstrip-line structure with a magnetic/dielectricâ€¦ (More)

- J. Masuko, Hajime Akimoto, Mitsuhiro Matsumoto, H.. Kanai, Y.. Uehara
- IEEE Transactions on Magnetics
- 2008

We describe a thermal magnetic noise simulation of tunneling magnetoresistive (TMR) heads. We calculate the phase and amplitude distributions of the local noise resistance derived from theâ€¦ (More)

- Shuichi Shiitani, Tsutomu Baba, Satoshi Endo, Y.. Uehara, Daiki Masumoto, Shigemi Nagata
- 6th IEEE Southwest Symposium on Image Analysisâ€¦
- 2004

We propose a technique for efficient retrieval of video scenes in a large number of digital videos. With the technique, cut frame images are automatically detected from videos, and arranged based onâ€¦ (More)