| | Al Abdallat, Y. Al Asfar, J. J Yamin, J. and Hamdan, M. A. | Engineering Congress on Alternative Energy Application | KUWAIT | November 2nd-6th,2009 | Participant | |
| | Y. Al-Abdullat | | Amman - Jordan | March 31st-April 2nd, 2009 | Lecturer | |
| | H.Kuwahara, Y. Al-Abdullat, M. Ohta, S. Tsutsumi, K. Ikeuchi, N.Mazaki, T. Aizawa | The first International Workshop on Magnesium platform Science and Technology | Yokohama | March 29-31, (2000). | Lecturer | |
| | Y. Al-Abdullat, H.Kuwahara, N.Mazaki, T. Aizawa, C. Peng, S. Tsutsumi | Annual meeting of Japan Institute of Metals (JIM) | Nagoia-Japan | Jul.29-31 (2000). | Others | |
| | Y. Al-Abdullat, H.Kuwahara, C. Peng, S. Tsutsumi | International & American Assoc. For Dental Research Conference (IADR) | Washington,D.C.,USA | April. 5-8. (2000). | Others | |
| | Y. Al-Abdullat, H.Kuwahara, S. Tsutsumi | Conference of Japanese Society for Dental Material and Devices, The Journal of Japanese Society for Dental Materials and Devices | Tokyo-Japan | April. 27- 28. (2000) | Others | |
| | Y. Al-Abdullat, H. Kuwahara, S. Tsutsumi, K. Ikeuchi | International Conference on Metallurgical Coatings and Thin Films | San Diego,USA | April 30-May 4, (2001) | Lecturer | |
| | Al Asfar,J. J., Al-Abdallat, Y., and Hamdan, M. A. | Sand Global Conference on Renewables and Energy efficiency for Desert Regions[GCREEDER 2009] | Amman - Jordan | 21 January 2009 | Participant | |
| | Y. Al-Abdullat | Arabian Authority for Nuclear Energy | Beirut / Lebanon | 15- 19 Dec. 2003 | Others | |
| | Y. Al-Abdullat, H. Kuwahara, S. Tsutsumi, K. Ikeuchi | International Industrial Engineering Conference (IIEC-2001) | Amman - Jordan | Sep. 23th. (2001) | Others | |
| | Al-Abdallat, Y., Al Asfar,J. J., and Hamdan, M. A. | Global Conference on Renewables and Energy efficiency for Desert Regions[GCREEDER 2009] | Amman - Jordan | Jan. 21-22 2009 | Participant | |
