Separating Encryption and Key Issuance in Digital Rights Management Systems. - Goichiro Hanaoka; Kazuto Ogawa; Itsuro Murota; Go Ohtake; Keigo Majima; Kimiyuki Oyamada; Seiichi Gohshi; Seiichi Namba; Hideki Imai (ACISP, 2003)

Managing Encryption and Key Publication Independently in Digital Rights Management Systems. - Goichiro Hanaoka; Kazuto Ogawa; Itsuro Murota; Go Ohtake; Keigo Majima; Seiichi Gohshi; Kimiyuki Oyamada; Seiichi Namba; Hideki Imai (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2004)

Network Broadcasting System Using Viewer Information. - Arisa Fujii; Haruyuki Nakamura; Go Ohtake; Keigo Majima; Yoshihiro Fujita; Hiroyuki Imaizumi; Koichi Tanimoto; Takaaki Yamada (SMC, 2006)

Identified-Service Support System and Its Application to Network Broadcasting Services. - Koichi Tanimoto; Takaaki Yamada; Haruyuki Nakamura; Arisa Fujii; Go Ohtake; Keigo Majima; Yoshihiro Fujita; Hiroyuki Imaizumi (SMC, 2006)

Privacy-Enhanced Content Distribution and Charging Scheme Using Group Signature. - Takayuki Tobita; Hironori Yamamoto; Hiroshi Doi; Keigo Majima (WISA, 2006)

A method of controlling presentation for applications in hybridcast. - Kazuhiro Otsuki; Hisayuki Ohmata; Arisa Fujii; Keigo Majima; Tomoyuki Inoue (ICCE, 2012)

Hybridcast: A new media experience by integration of broadcasting and broadband. - Hisayuki Ohmata; Masaru Takechi; Shigeaki Mitsuya; Kazuhiro Otsuki; Akitsugu Baba; Kinji Matsumura; Keigo Majima; Shunji Sunasaki (Kaleidoscope, 2013)

Broadcast metadata providing system for hybridcast. - Yuki Hironaka; Keigo Majima; Kenjiro Kai; Shunji Sunasaki (ICCE-Berlin, 2015)

An application distribution management system for Hybridcast. - Yuki Hironaka; Hisayuki Ohmata; Go Ohtake; Kazuhiro Otsuki; Masaru Takechi; Kenjiro Kai; Keigo Majima (ICCE, 2015)

Multi-screen broadcast-broadband synchronization system using hybridcast. - Masayoshi Onishi; Yuki Hironaka; Hisayuki Ohmata; Kinji Matsumura; Keigo Majima (ICCE, 2016)