About TAKAHASHI Nobuo
About Graduate School of Economics, Univ. of Tokyo
About SHINTAKU Junjiro
About Graduate School of Economics, Univ. of Tokyo
About OHKAWA Hirofumi
About Fac. of Business, Marketing, and Distribution, Nakamura Gakuen Univ.
About Annals of Business Administrative Science (Web)
About technological innovation
About driving mechanism
About volume measurement
About recording density
About fracture
About discontinuity
About network
About technical progress
About researcher
About dilemma
About Hard Disk Drive
About value network
About radical innovation
About Research and development
About Memory units
About 軌道
About 破壊