Design and Implementation of Unauthorized Access Tracing System. - Shigeyuki Matsuda; Tatsuya Baba; Akihiro Hayakawa; Taichi Nakamura (SAINT, 2002)

An Auditing System for QoS-Enabled Networks. - George Din; Akihiro Hayakawa; Ina Schieferdecker; Peter H. Deussen (ICDCS Workshops, 2003)

Policy Conflict Analysis Using Tableaux for On Demanc VPN Framework. - Hiroaki Kamoda; Akihiro Hayakawa; Masaki Yamaoka; Shigeyuki Matsuda; Krysia Broda; Morris Sloman (WOWMOM, 2005)

Proposal of an Appropriate Repair Option from the View Point of Product Value, Environment Impact and Cost: Case Study of Automobile Engine. - Takuya Okamoto; Mitsunobu Fujita; Takao Mori; Motohiro Tamaki; Akihiro Hayakawa; Masato Inoue (TE, 2018)

Repair Options in Terms of Product Value, Environmental Impact, and Cost for Car Users: A Case Study of a Kei Car Engine Repair. - Suki Ueda; Reo Sato; Shun Kobayashi; Mitsunobu Fujita; Takao Mori; Shuho Yamada; Akihiro Hayakawa; Masato Inoue (Int. J. Autom. Technol., 2025)