About OGAWA KEIJI
About TANABE HIROTAKA
About NAKAGAWA HEISABURO
About 中川加工技術研
About laser beam machining
About metal mold
About laser hardening
About morphology (form)
About edged tools
About workpiece
About YAG laser
About end mill
About tool edge
About cemented carbide
About laser irradiation
About cutting part
About indentation hardness
About heat capacity
About ball end mill
About die machining
About complicated shape
About Surface hardening
About レーザー加工
About 金型
About 応用
About 研究
About レーザー焼入れ
About 複雑形状
About 刃物
About 工法