About KAMEYAMA SHUMPEI
About 三菱電機
About MISU KOICHIRO
About 三菱電機
About WADAKA SHUSO
About 三菱電機
About TANAKA YOSHIHIDE
About 湘菱電子
About KOIKE MITSUHIRO
About 湘菱電子
About SUGIMOTO SACHIRO
About 湘菱電子
About waveguide
About Nondestructive testing
About ガイド波
About 傷