About KATAYAMA SEIJI
About 大阪大 接合科学研
About Journal of the Vacuum Society of Japan
About laser welding
About weld zone
About carbon dioxide laser
About Nd-YAG laser
About semiconductor laser
About YAG laser
About welding
About laser output
About weld defect
About molten pool
About modification
About joint(tool)
About fiber laser
About remote laser welding
About laser joint
About welding
About intellectualization
About Welding techniques
About レーザ溶接
About 発展