Audio and Video Extensions to Graphical User Interface Toolkits. - Rei Hamakawa; Hidekazu Sakagami; Jun Rekimoto (NOSSDAV, 1992)

Mbuild - Multimedia Data Builder with Box and Glue. - Rei Hamakawa; Hidekazu Sakagami; Jun Rekimoto (ICMCS, 1994)

Learning Personal Preferences on Online Newspaper Articles from User Behaviors. - Hidekazu Sakagami; Tomonari Kamba (Comput. Networks, 1997)

ANATAGONOMY: a personalized newspaper on the World Wide Web. - Tomonari Kamba; Hidekazu Sakagami; Yoshiyuki Koseki (Int. J. Hum. Comput. Stud., 1997)

Effective Personalization of Push-Type Systems - Visualizing Information Freshness. - Hidekazu Sakagami; Tomonari Kamba; Atsushi Sugiura; Yoshiyuki Koseki (Comput. Networks, 1998)

Opportunities for proactive support of reuse and organizational learning in ad hoc collaborative work activity: A field study of proposal writing. - Gregorio Convertino; Victoria Bellotti; Nozomi Ikeya; Oliver Brdiczka; Ayako Hoshino; Motohiko Sakaguchi; Yosuke Motohashi; Hidekazu Sakagami (CTS, 2011)