About SHIMANO T
About Hitachi Ltd., Tokyo, JPN
About UMEDA M
About Hitachi Ltd., Tokyo, JPN
About ARIYOSHI T
About Hitachi Ltd., Tokyo, JPN
About Japanese Journal of Applied Physics. Part 1. Regular Papers, Short Notes & Review Papers
About optical disk
About Electronic recording,magnetic recording,optical recording
About Image formation and analysis
About ディジタル
About 用途
About ディスク
About 光ピックアップ
About 球面収差