Hiroshi TOKUNAGA


A Study on Customer Complaint Handling System
Masashi ICHINOSE Hiroshi TOKUNAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/02/25
Vol. E77-B  No. 2  pp. 261-264
Type of Manuscript:  LETTER
Category: Communication Networks and Service
Keyword: 
intelligent network servicesservice operationcustomer complaint ticketinformation
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Intelligent Network Service Operation Architecture
Hiroshi TOKUNAGA Yukuo KIRIHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/07/25
Vol. E75-B  No. 7  pp. 617-623
Type of Manuscript:  Special Section PAPER (Special Section on Network Planning)
Category: 
Keyword: 
service operationintelligent networkoperation architectureoperation platform
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Functional Reference Model for Universal Personal Telecommunication Service Studied by Considering Three Mobilities
Motoo HOSHI Tatsuo NOHARA Hiroshi TOKUNAGA Yoshiyuki YASUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1991/11/25
Vol. E74-B  No. 11  pp. 3719-3725
Type of Manuscript:  Special Section PAPER (Special Issue on Information Communication Networking Architecture)
Category: 
Keyword: 
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