Kota Ojima, Kanaka Iwasaki, Seiji Harada, Yuka Takagi and Hajime Nagata. Low-temperature sintering mechanism and electrical properties of CuO-added (Bi 0.5Na0.5 )TiO3 ceramics. Journal of the Ceramic Society of Japan. 2023. 131. 7. 209-215
Yuka Takagi, Yuta Ochiai, Mihiro Ito, Takumi Kawagoe, Hajime Nagata, and Isao Sakaguchi. Oxygen tracer diffusion analysis and observation of domain structure in quenched (Bi0.5Na0.5)TiO3 ceramics. Japanese Journal of Applied Physics. 2022. 61. SN1034-1-SN1034-7
Takeru Tayama, Yuka Takagi, and Hajime Nagata. High-power piezoelectric properties of quenched (Bi0.5Na0.5)TiO3-based solid-solution ceramics. Journal of Applied Physics. 2022. 132. 6. 064101
Fumio Munakata, Haruna YAMAZAKI, Mariko TAKEDA, Yuka TAKAGI, Hajime, Nagata, Tetsuo UCHIKOSHI. α-β Phase Transition Induced by Self-Assembly Process of BaTiO3 aggregates in Polyvinylidene Fluoride Composites. Materials Letters. 2021. 131567
Yuka Takagi, Yuta Ochiai, and Hajime Nagata. Temperature dependence of dielectric properties and phase transition behavior in quenched (Bi0.5Na0.5)TiO3 ceramics. Japanese Journal of Applied Physics. 2021. 60. SFFD02. SFFD02-1-SFFD02-8
N. Nagata, S. W. Ko, S. Trolier-McKinstry, C. A. Randall, A. Tajuddin. Microcontact Printed Thin Film Capacitor. The 12th US-Japan Seminar on Dielectric and Piezoelectric Ceramics. 2005. 297-300
Yuji Hiruma, Rintaro Aoyagi, Hajime Nagata, Tadashi Takenaka. Ferroelectric and Piezoelectric Properties of (Bi1/2K1/2)TiO3. The 12th US-Japan Seminar on Dielectric and Piezoelectric Ceramics. 2005. 153-156
永田 肇, 藤田 裕司, 江野沢 寛忠, 坂口 勲, 羽田 肇, 竹中 正. Tracer Diffusion of Oxygen in Donor-doped Bismuth Titanate Ceramics. Extended Abstract of The 11th US-Japan Seminar on Dielectric and Piezoelectric Ceramics. 2003. 129-132
竹中 正, 永田 肇. Current Status and Prospects of Lead-free Piezoelectric Ceramics. Extended Abstract of The 11th US-Japan Seminar on Dielectric and Piezoelectric Ceramics. 2003. 237-244
坂口 勲, 羽田 肇, 永田 肇, 藤田 裕司, 江野沢 寛忠, 竹中 正. A Characterization of Nb and V-doped Bismuth Titanate Ceramics by Imaging SIMS. Extended Abstract of The 11th US-Japan Seminar on Dielectric and Piezoelectric Ceramics. 2003. 145-147