About NAKAE MASAHIKO
About HIDAKA KAZUNORI
About 明和製作所
About MATSUNAMI TOSHINORI
About 岐阜ギヤー工業
About KOHARA MASAO
About ユシロ化学工業
About MORIKAWA HIROSHI
About 日本機械学会論文集 C編
About hobbing
About lapping
About Gears,gear units
About Grinding
About ホブ切り
About 調質
About 歯車
About ラッピング
About 仕上げ