About MOTOHASHI MITSUYA
About 東京電機大 工
About circuit component
About optical communication
About optical integrated circuit
About optical waveguide
About dislocation(crystal)
About etching
About Electrochemistry
About solid state device
About optical element
About photonic device
About electrochemical etching
About lattice defect
About optical communication device
About Optical integrated circuits,integrated optics
About 社会
About インフラ
About エネルギー
About 現状
About 将来展望