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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 13 of 13  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
ED, LQE, CPM 2012-11-29
15:50
Osaka Osaka City University Reduction in Threshold Voltage Shift of Insulated-gate GaN-HEMT Using ALD-Al2O3 Films
Shiro Ozaki, Toshihiro Ohki, Masahito Kanamura, Tadahiro Imada, Norikazu Nakamura, Naoya Okamoto, Toyoo Miyajima, Toshihide Kikkawa (Fujitsu Laboratories Ltd.) ED2012-75 CPM2012-132 LQE2012-103
We reported the threshold voltage (Vth) shift phenomena of insulated-gate GaN high electron mobility transistor (HEMT) f... [more] ED2012-75 CPM2012-132 LQE2012-103
pp.41-44
CPM, LQE, ED 2010-11-11
16:50
Osaka   High-Power GaN-HEMT for Millimeter-Wave Amplifier
Kozo Makiyama, Toshihiro Ohki, Naoya Okamoto, Masahito Kanamura, Satoshi Masuda, Yasuhiro Nakasha, Kazukiyo Joshin, Kenji Imanishi (Fujitsu, Fujitsu Labs.), Naoki Hara, Shiro Ozaki, Norikazu Nakamura (Fujitsu Labs.), Toshihide Kikkawa (Fujitsu, Fujitsu Labs.) ED2010-153 CPM2010-119 LQE2010-109
 [more] ED2010-153 CPM2010-119 LQE2010-109
pp.51-54
MW 2009-09-25
15:15
Tokyo Univ. of Electro-Communications C-band 340-W and X-band 100-W GaN Power Amplifiers with Over 50-% PAE
Hisao Shigematsu, Yusuke Inoue, Akihiko Akasegawa, Satoshi Masuda, Masao Yamada, Masahito Kanamura, Toshihiro Ohki, Kozo Makiyama, Naoya Okamoto, Kenji Imanishi, Toshihide Kikkawa, Kazukiyo Joshin, Naoki Hara (Fujitsu Lab.) MW2009-86
In this paper, we report an X-band power amplifier with over 100-W output power using 0.25-μm GaN-HEMTs and a C-band pow... [more] MW2009-86
pp.73-78
ED 2009-06-12
11:25
Tokyo   Effect of Epitaxial Layer Design on Drain Leakage Current for Millimeter-Wave GaN-HEMT
Atsushi Yamada, Kozo Makiyama, Toshihiro Ohki, Masahito Kanamura, Kazukiyo Joshin, Kenji Imanishi (Fujitsu and Fujitsu Labs.), Naoki Hara (Fujitsu Labs.), Toshihide Kikkawa (Fujitsu and Fujitsu Labs.) ED2009-48
In this paper, GaN channel and AlGaN buffer layer structure in the GaN-HEMT was optimized to achieve a good balance betw... [more] ED2009-48
pp.63-67
MW, ED 2009-01-16
09:30
Tokyo Kikai-Shinko-Kaikan Bldg C-band GaN-HEMT Power Amplifier with Over 300-W Output Power and Over 50-% Efficiency
Hisao Shigematsu, Yusuke Inoue, Satoshi Masuda, Masao Yamada, Masahito Kanamura, Toshihiro Ohki, Kozo Makiyama, Naoya Okamoto, Kenji Imanishi, Toshihide Kikkawa, Kazukiyo Joshin, Naoki Hara (Fujitsu Lab. Ltd.,) ED2008-218 MW2008-183
 [more] ED2008-218 MW2008-183
pp.113-118
MW, ED 2009-01-16
10:55
Tokyo Kikai-Shinko-Kaikan Bldg High-Power GaN-HEMT with High Three-Terminal Breakdown Voltage for W-band Applications
Kozo Makiyama, Toshihiro Ohki, Masahito Kanamura, Kazukiyo Joshin, Kenji Imanishi (Fujitsu Ltd/Fujitsu Lab. Ltd.), Naoki Hara (Fujitsu Lab. Ltd.), Toshihide Kikkawa (Fujitsu Ltd/Fujitsu Lab. Ltd.) ED2008-221 MW2008-186
We reported on a technology to improve the three-terminal breakdown voltage of a GaN high electron mobility transistor (... [more] ED2008-221 MW2008-186
pp.129-133
LQE, ED, CPM 2008-11-28
13:55
Aichi Nagoya Institute of Technology An Over 100 W AlGaN/GaN Enhancement-Mode HEMT Power Amplifier
Toshihiro Ohki, Toshihide Kikkawa, Masahito Kanamura, Kenji Imanishi, Kozo Makiyama, Naoya Okamoto, Kazukiyo Joshin, Naoki Hara (Fujitsu, Fujitsu Labs.) ED2008-178 CPM2008-127 LQE2008-122
 [more] ED2008-178 CPM2008-127 LQE2008-122
pp.131-136
SDM, R, ED 2007-11-16
15:20
Osaka   Degradation-Mode Analysis for Highly Reliable GaN-HEMT
Yusuke Inoue, Satoshi Masuda, Masahito Kanamura, Toshihiro Ohki, Kozo Makiyama, Naoya Okamoto, Kenji Imanishi, Toshihide Kikkawa, Naoki Hara, Hisao Shigematsu, Kazukiyo Joshin (Fujitsu Labs. Ltd.) R2007-51 ED2007-184 SDM2007-219
 [more] R2007-51 ED2007-184 SDM2007-219
pp.27-31
MW, ED 2007-01-19
15:15
Tokyo Kikai-Shinko-Kaikan Bldg. Current collapse of inslated-gate GaN-HEMT
Masahito Kanamura, Toshihiro Ohki, Kenji Imanishi, Kozo Makiyama, Naoya Okamoto (Fujitsu, Fujitsu Labs.), Naoki Hara (Fujitsu Labs.), Toshihide Kikkawa, Kazukiyo Joshin (Fujitsu, Fujitsu Labs.)
 [more] ED2006-236 MW2006-189
pp.199-203
MW, ED 2007-01-19
16:40
Tokyo Kikai-Shinko-Kaikan Bldg. GaN-HEMT with high breakdown voltage and high fmax for millimeter-wave application
Kozo Makiyama, Toshihiro Ohki, Kenji Imanishi, Masahito Kanamura (Fujitsu, Fujitsu Labs.), Naoki Hara (Fujitsu Labs.), Toshihide Kikkawa (Fujitsu, Fujitsu Labs.)
 [more] ED2006-239 MW2006-192
pp.213-217
ED, MW 2006-01-19
15:10
Tokyo Kikai-Shinko-Kaikan Bldg. Highly Uniform GaN-HEMT on 3-inch Conductive SiC Substrate for Wireless Basestation Applications
Toshihide Kikkawa, Kenji Imanishi, Masahito Kanamura, Kazukiyo Joshin (Fujitsu Labs.)
 [more] ED2005-207 MW2005-161
pp.45-49
ED, MW 2006-01-19
15:35
Tokyo Kikai-Shinko-Kaikan Bldg. High Power AlGaN/GaN MIS-HEMT
Masahito Kanamura, Toshihide Kikkawa, Taisuke Iwai, Kenji Imanishi, Tokuro Kubo, Kazukiyo Joshin (Fujitsu Labs. Ltd.)
 [more] ED2005-208 MW2005-162
pp.51-55
MW, ED 2005-01-18
13:50
Tokyo   -
Masahito Kanamura, Toshihide Kikkawa, Kazukiyo Joshin (Fujitsu Lab.)
 [more] ED2004-220 MW2004-227
pp.47-51
 Results 1 - 13 of 13  /   
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