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: 
underfill,  filler,  solder,  nanoindentation,  Young'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 method,  BPLP,  Wiener filter,  error 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 board,  thermal stress,  reliability,  stacked via,  halogen-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 analysis,  blind source separation,  voice activity detection,  closed-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 matrices,  joint diagonalization,  perturbation analyses,  blind 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 method,  BPLP,  linear estimation theory,  parametric 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 processing,  Fourier transform,  unitary matrix,  eigenspace,  symmetric 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 restoration,  parametric partial projection filter,  lienar constraint,  affine constraint, 
  Summary |  Full Text(in Japanese):PDF (88.5KB)