About HASEGAWA M
About Itami R&D Lab.
About KOMURA O
About Itami R&D Lab.
About YAMAKAWA A
About Itami R&D Lab.
About SHIBATA K
About Hybrid Products Div.
About NAITO H
About Hybrid Products Div.
About NAKAYAMA S
About Hybrid Products Div.
About FUJII A
About Hybrid Products Div.
About SEI Technical Review
About zinc sulfide
About Optical devices in general
About 赤外
About 透過性
About ZnS
About 焼結体
About 光特性