Hirofumi Kakemoto
Hachinohe Institute of Technology
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Publication
Featured researches published by Hirofumi Kakemoto.
Journal of The European Ceramic Society | 2001
Ken-ichi Kakimoto; Hirofumi Kakemoto; Akira Baba; S. Fujita; Yoichiro Masuda
Abstract Tungsten-bronze type tetragonal Sr x Ba 1– x Nb 2 O 6 (SBN) ceramics have been synthesized by pressure-less sintering at 1250°C through a mixed-oxide route. With increasing x value in the range from 0.3 to 0.6, the Curie temperature shifted to lower temperature, but the corresponding maximum dielectric constant increased. Further, Sr 0.3 Ba 0.7 Nb 2 O 6 thin films have been formed by pulsed YAG laser deposition (PLD) technique using a selected SBN bulk target with various choices of the deposition parameters. When Pt-coated Si substrates were used for PLD, a preferential c-axis-ordered structure was observed in the films deposited using an energy density above 2.0 J/cm 2 , at a substrate temperature above 650°C, and in oxygen partial pressure below 7 Pa. The thin film yielded a rhomboidal P – E hysteresis loop, and showing a remanent polarization ( P r ) of 3.1 μ C/cm 2 and coercive field ( E c ) of 1.28 kV/cm.
Electroceramic Materials and Applications: Ceramic Transactions Series, Volume 196 | 2011
Hirofumi Kakemoto; Song-Min Nam; Satoshi Wada; Takaaki Tsurumi
日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi = Journal of the Ceramic Society of Japan | 2008
Jianyong Li; Daisuke Tsukiori; Hirofumi Kakemoto; Satoshi Wada; Takaaki Tsurumi
Preprints of Annual Meeting of The Ceramic Society of Japan Preprints of Fall Meeting of The Ceramic Society of Japan Annual Meeting of The Ceramic Society of Japan, 2006 | 2006
Daisuke Tsukiori; Hirofumi Kakemoto; Akira Nakajima; Satoshi Wada; Takaaki Tsurumi; Song-Min Nam; Jun Akedo
Archive | 2006
Franco M. Furgiuele; Enrico Drioli; Thorsten Gerdes; Monika Willert-Porada; Harold H. Wolf; Hirofumi Kakemoto; Tetsuya Higuchi; Setsuko Wada; Takaaki Tsurumi
Preprints of Annual Meeting of The Ceramic Society of Japan Preprints of Fall Meeting of The Ceramic Society of Japan Annual Meeting of The Ceramic Society of Japan, 2005 | 2005
Takuya Hoshina; Hirofumi Kakemoto; Takaaki Tsurumi; Satoshi Wada; Masatomo Yashima
Preprints of Annual Meeting of The Ceramic Society of Japan Preprints of Fall Meeting of The Ceramic Society of Japan 18th Fall Meeting of The Ceramic Society of Japan & 1st Asia-Oceania Ceramic Federation (AOCF) Conference | 2005
Takuya Hoshina; Hirofumi Kakemoto; Takaaki Tsurumi; Satoshi Wada; Masatomo Yashima; Yoshihiro Kuroiwa
Preprints of Annual Meeting of The Ceramic Society of Japan Preprints of Fall Meeting of The Ceramic Society of Japan 18th Fall Meeting of The Ceramic Society of Japan & 1st Asia-Oceania Ceramic Federation (AOCF) Conference | 2005
Aki Yazawa; Takuya Hoshina; Hirofumi Kakemoto; Satoshi Wada; Takaaki Tsurumi
Preprints of Annual Meeting of The Ceramic Society of Japan Preprints of Fall Meeting of The Ceramic Society of Japan 17th Fall Meeting of The Ceramic Society of Japan | 2004
Michiyasu Nishiyama; Takuya Hoshina; Hirofumi Kakemoto; Satoshi Wada; Takaaki Turumi
Preprints of Annual Meeting of The Ceramic Society of Japan Preprints of Fall Meeting of The Ceramic Society of Japan 17th Fall Meeting of The Ceramic Society of Japan | 2004
Hoshina Takuya; Hirofumi Kakemoto; Takaaki Tsurumi; Satoshi Wada; Masatomo Yashima; Kenichi Kato; Masaki Takata
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National Institute of Advanced Industrial Science and Technology
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