About MITSUI KIMIYUKI
About 機械技研
About SAKAI MAKOTO
About 東京精密
About KIZUKA KEIJI
About 岡本工作機械製作所
About OZAWA NORIMITSU
About 機械技研
About KONO TSUGUO
About 精密工学会誌
About surface roughness
About Photometry and photodetectors in general
About 高感度
About 非接触
About 粗さ
About 開発