In our laboratory, we have studied on bondability of similar metals and dissimilar metals using YAG laser welding, stud welding, vacuum roll bonding and spot welding etc. And we have studied on their metallurgical properties, mechanical properties and soundness of their bondings and weldings.

　We have also studies that applied to new fields such as surface modification of materials using YAG　laser welding, and joining technology. For example, improvement is the study of surface characteristics of steels, aluminum alloys, coppers, and biomaterials such as titanium alloys.