Consideration of the Boundary Condition between Two Media in Acoustic Field Analysis Using the Constrained Interpolation Profile (CIP) Method. - Kan Okubo; Sungqwan Oh; Takao Tsuchiya; Nobunao Takeuchi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)

Underground Electric Signal at the Occurrence of the Niigataken Chuetsu-oki Earthquake in 2007, Japan. - Kan Okubo; Akihiro Takeuchi; Yukinobu Nakamura; Nobunao Takeuchi (IEICE Trans. Electron., 2012)

Application of mean-shift clustering for removing flux trapping noise from geomagnetic field signals measured using HTS-SQUID magnetometers. - Kiyoshi Nishikawa; Kan Okubo; Yuta Katori; Nobunao Takeuchi (APSIPA, 2017)