About TAKAMOTO Masao
About Univ. Tokyo, JPN
About HONG Feng-Lei
About National Inst. of Advanced Industrial Sci. and Technol., Ibaraki, JPN
About HIGASHI Ryoichi
About Univ. Tokyo, JPN
About KATORI Hidetoshi
About Univ. Tokyo, JPN
About Nature (London)
About precision measurement
About 光格子時計
About Measuring methods and instruments of time,speed,acceleration,angular veloc?
About 光格子時計