INTERNET-MARKs: Clear, Secure, and Portable Visual Marks for the Cyber Worlds. - Hiroshi Yoshiura; Seiichi Susaki; Yasuhiko Nagai; Tsukasa Saitoh; Hisashi Toyoshima; Ryôichi Sasaki; Satoru Tezuka (Security Protocols Workshop, 1999)

Internet-Marks: the secure seal for WWW site authentication. - Shinsuke Honjo; Seiichi Susaki; Hiroshi Yoshiura; Hirokazu Aoshima; Satoru Tezuka; Ryôichi Sasaki; Tsukasa Saitoh; Hisashi Toyoshima (ICPADS Workshops, 2000)

Authenticating Web-Based Virtual Shops Using Signature-Embedded Marks - A Practical Analysis. - Hiroshi Yoshiura; Takaaki Shigematsu; Seiichi Susaki; Tsukasa Saitoh; Hisashi Toyoshima; Chikako Kurita; Satoru Tezuka; Ryôichi Sasaki (Security Protocols Workshop, 2000)

A Feature Extracting Method for Tamper Detection in Printed Documents. - Yoshiyasu Takahashi; Takaaki Yamada; Seiichi Susaki (ICE-B, 2008)

A study on user authentication infrastructure for next generation telematics. - Katsuyuki Umezawa; Seiichi Susaki; Masamori Kashiyama; Satoru Tezuka (ICVES, 2008)

Third-party approach to controlling digital copiers. - Yasuhiro Fujii; Ryu Ebisawa; Yumiko Togashi; Takaaki Yamada; Yoshinori Honda; Seiichi Susaki (iiWAS, 2008)

The Estimation of the New Feature Extracting Method for Tamper Detection in Printed Documents. - Yoshiyasu Takahashi; Takaaki Yamada; Seiichi Susaki (PACIIA (2), 2008)

Evaluation of Audio Watermark System Using Short Detection Time Frame. - Takaaki Yamada; Yoshiyasu Takahashi; Ryu Ebisawa; Yoshinori Sato; Seiichi Susaki (IIH-MSP, 2009)