| Paper | 
|---|
| [1999] T. Takagi, Yong-Ho Choa, T. Sekino, K.  Niihara Key engineering materials 161-163 (1999), 181-84 | 
| [1999] Dong-Woo Shin, Sam Shik Park, Yong-Ho Choa, Koichi Niihara Journal of the American Ceramic Society, 82 (1999), 3251-53 | 
| [1999] T. Sekino, S. Etoh, H. Kondo, Yong-Ho Choa, K.  Niihara Key engineering materials 161-163 (1999), 489-92 | 
| [1999] Tohru Sekino, Yong-Ho Choa, Atsushi Nakahira, Koichi Niihara Materia Japan, 38 (1999), 425-28 | 
| [1999] K. Niihara, T. Kusunose, S. Kohsaka, T. Sekino, Yong-Ho Choa Key engineering materials 161-163 (1999), 527-34 | 
| [1999] K. Niihara, Y. K. Jeong, T. Sekino, Yong-Ho Choa Ceramic transactions 96 (1999), 185-96 | 
| [1999] Koich Niihara, Yong-Ho Choa, Manwar Hussain, Yoshiyuki Hamahashi, Hiroiarou Kawahara, Yoshihisa Okamoto, Hirosi Nishida Materials Integration, 12 (1999), 47-53 | 
| [1999] K. Niihara, N. Bamba, Yong-Ho Choa, T.  Sekino Ceramic transactions 96 (1999), 197-208 | 
| [1999] T. Nakayama, T. A. Yamamoto, Yong-Ho Choa, K.  Niihara Key engineering materials 161-163 (1999), 497-500 | 
| [1999] T. Kusunose, Yong-Ho Choa, T. Sekino, K.  Niihara Key engineering materials 161-163 (1999), 475-80 | 
| [1999] T. Kusunose, Yong-Ho Choa, T. Sekino, K. Niihara Ceramic transactions, 94 (1999), 443-54 | 
| [1999] H. Kondo, T. Sekino, Yong-Ho Choa, K.  Niihara Key engineering materials 161-163 (1999), 419-22 | 
| [1999] H. Kawaoka, Yong-Ho Choa, K.  Niihara Key engineering materials 161-163 (1999), 225-28 | 
| [1999] Fabrication Process and Mechanical Properties of ZnO Based Nanocomposites by Pulse Electric Current Sintering Method Y. Hayashi, Yong-Ho Choa, T. Sekino, J. P. Singh, K.  Niihara Key engineering materials 161-163 (1999), 49-52 | 
| [1999] Y. Hayashi, Yong-Ho Choa, J. P. Singh, K.  Niihara Ceramic transactions 96 (1999), 209-18 |