Hiroaki KOGA


Sense of Virtual Reality: Effectiveness of Replacing 3D Imagery with 2D/3D Hybrid Imagery
Shinji TASAKI Takehisa MATSUSHITA Kazuhiro KOSHI Chikamune WADA Hiroaki KOGA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/05/01
Vol. E88-D  No. 5  pp. 851-858
Type of Manuscript:  Special Section PAPER (Special Section on Cyberworlds)
Category: 
Keyword: 
2D/3D hybrid imagery system3D stereo imageVR sensations3 screen systems
 Summary | Full Text:PDF(2MB)

Analysis of a CMC (Common Mode Choke) Insertion Loss and Common Mode Current Characteristics in a Balanced Transmission Line with a CMC Inserted
Osamu MAKINO Yoshifumi SHIMOSHIO Hiroaki KOGA Masamitsu TOKUDA Tsuyoshi IDEGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/07/01
Vol. E86-B  No. 7  pp. 2162-2170
Type of Manuscript:  PAPER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
common mode chokebalanced transmission linetwisted-pair cablecommon mode noisefour-port network
 Summary | Full Text:PDF(805.3KB)

Balance-Unbalance Conversion Characteristics of Untwisted Unbalanced Metallic Pair Lines and Their Application to a Method for Estimating Equivalent Ground Plane
Tsuyoshi IDEGUCHI Hiroaki KOGA Yoshifumi SHIMOSHIO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/03/25
Vol. E83-B  No. 3  pp. 480-488
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Progress in Electromagnetic Compatibility Technology)
Category: EMC Evaluation
Keyword: 
balance-unbalance conversion factoreffective poweruntwisted pair linesunbalanced pair linesequivalent ground planecurrent return route
 Summary | Full Text:PDF(497KB)

0.5 mm Coated Optical Fibers Design Using Polyetherimido
Fumihiko ITO Tsuneo KUWABARA Hiroaki KOGA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/10/25
Vol. E71-E  No. 10  pp. 987-991
Type of Manuscript:  PAPER
Category: Communication Cable and Wave Guides
Keyword: 
 Summary | Full Text:PDF(352.9KB)

Lightning Surge Waves Induced on Overhead Lines
Hiroaki KOGA Tamio MOTOMITSU Morihiko TAGUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1979/04/25
Vol. E62-E  No. 4  pp. 216-223
Type of Manuscript:  PAPER
Category: Transmission Systems
Keyword: 
 Summary | Full Text:PDF(553.7KB)