Three wavelength compatible pickup with blue/red multi-beam laser unit. - Kenji Nagatomi; Masahito Ogata; Seiji Kajijyama; Yoichi Tsuchiya; Yasuyuki Bessho (IEEE Trans. Consumer Electron., 2005)

A smart model HD DVD/DVD/CD compatible pickup head. - Kenji Nagatomi; Masahito Ogata; Kenji Asano; Yoichi Tsuchiya; Yasuyuki Bessho (IEEE Trans. Consumer Electron., 2006)

Measuring consensus and dissensus: A generalized index of disagreement using conditional probability. - Yoichi Tsuchiya; Naoki Hiramoto (Inf. Sci., 2018)

Measuring dark web marketplaces via Bitcoin transactions: From birth to independence. - Naoki Hiramoto; Yoichi Tsuchiya (Digit. Investig., 2020)

Dark web in the dark: Investigating when transactions take place on cryptomarkets. - Yoichi Tsuchiya; Naoki Hiramoto (Digit. Investig., 2021)