A polyphase and FFT realization of modulation sub-band adaptive filter with minimum sampling rate. - Kenji Nakayama; Akihiro Hirano; Hiroaki Sakaguchi (ICASSP, 1999)

How Do Consumers Avoid Penalty Fees? Evidence from Credit Cards. - John Gathergood; Hiroaki Sakaguchi; Neil Stewart; Jörg Weber (Manag. Sci., 2021)