Akira TANAKA


Study of Stress to Solder Joint by Underfill Filling
Akira TANAKA Akihiko HAPPOYA Shun OKAYAMA 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2011/11/01
Vol. J94-C  No. 11  pp. 419-426
Type of Manuscript:  Special Section PAPER (Special Issue on High-speed & High-density Packaging and Integration Technologies for Microelectronic Devices)
Category: 
Keyword: 
underfillfillersoldernanoindentationYoung's modulus
 Summary | Full Text(in Japanese):PDF(1.7MB)

Analyses on Interpolation Accuracy of Eigenspace-BPLP
Akira TANAKA Takahiro OGAWA Miki HASEYAMA Masaaki MIYAKOSHI 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2011/02/01
Vol. J94-A  No. 2  pp. 116-126
Type of Manuscript:  PAPER
Category: 
Keyword: 
eigenspace methodBPLPWiener filtererror analysis
 Summary | Full Text(in Japanese):PDF(538.4KB)

Development of Full-Stacked Via Printed Wiring Board with High Thermal Reliability
Akihiko HAPPOYA Akira TANAKA Kenji HIROHATA Shun OKAYAMA 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2009/11/01
Vol. J92-C  No. 11  pp. 703-711
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Packging and Environmentally Conscious Packaging Technologies in Next-Generation Electronic Equipment)
Category: 
Keyword: 
printed wiring boardthermal stressreliabilitystacked viahalogen-free
 Summary | Full Text(in Japanese):PDF(1.7MB)

Real-Time Blind Source Extraction with Learning Period Detection Based on Closed-Form Second-Order ICA and Kurtosis
Yuuki FUJIHARA Yu TAKAHASHI Kentaro TACHIBANA Shigeki MIYABE Hiroshi SARUWATARI Kiyohiro SHIKANO Akira TANAKA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2009/05/01
Vol. J92-A  No. 5  pp. 314-326
Type of Manuscript:  Special Section PAPER (Special Section on Blind Signal Processing and Its Applications)
Category: 
Keyword: 
independent component analysisblind source separationvoice activity detectionclosed-form solution
 Summary | Full Text(in Japanese):PDF(834.1KB)

Perturbation Analysis of Joint Diagonalizers and Its Application to Second-Order-Statistics-Based BSS
Akira TANAKA Yusuke MISAGAWA Masaaki MIYAKOSHI 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2008/11/01
Vol. J91-A  No. 11  pp. 1093-1097
Type of Manuscript:  LETTER
Category: 
Keyword: 
non-negative definite Hermitian matricesjoint diagonalizationperturbation analysesblind source separation
 Summary | Full Text(in Japanese):PDF(129.5KB)

Improvement of Eigenspace-BPLP Based on Linear Estimation Theory
Akira TANAKA Masaaki MIYAKOSHI 
Publication:   D - Abstracts of IEICE TRANSACTIONS on Information and Systems (Japanese Edition)
Publication Date: 2007/10/01
Vol. J90-D  No. 10  pp. 2840-2847
Type of Manuscript:  PAPER
Category: 
Keyword: 
eigenspace methodBPLPlinear estimation theoryparametric Wiener filter
 Summary | Full Text(in Japanese):PDF(401.5KB)

Eigen Analysis of Unitary Matrices Used in Signal Processing
Masaaki MIYAKOSHI Akira TANAKA Mayuka F. KAWAGUCHI 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2007/05/01
Vol. J90-A  No. 5  pp. 403-414
Type of Manuscript:  PAPER
Category: 
Keyword: 
signal processingFourier transformunitary matrixeigenspacesymmetric group
 Summary | Full Text(in Japanese):PDF(322.5KB)

Another Interpretation of the Parametric Partial Projection Filter Based on the General Solution of Linear Constraints and Its Application to Restoration with Affine Constraints
Akira TANAKA Hideyuki IMAI Masaaki MIYAKOSHI 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2006/08/01
Vol. J89-A  No. 8  pp. 679-681
Type of Manuscript:  LETTER
Category: 
Keyword: 
image restorationparametric partial projection filterlienar constraintaffine constraint
 Summary | Full Text(in Japanese):PDF(88.5KB)