Recent Research Publications and Conferences

Tokuyama's most recent research and development projects are mainly presented in research papers for non-company publications.

Most recent research papers

Journal Published Title Author
International Workshop on Nitride Semiconductors 2016 2016/10 Recent progress in the growth of AlN by HVPE on native AlN substrates T. Kinoshita
T. Obata
T. Nagashima
R. Togashi
Y. Kumagai
R. Schlesser
R. Collazo
A. Koukitu
Z. Sitar
18th International Conference on Crystal Growth and Epitaxy 2016/8 Growth of AlN substrates by hydrid vapor phase epitaxy for opto-electronic devices T. Kinoshita
T. Nagashima
T. Obata
R. Togashi
Y. Kumagai
R. Schlesser
R. Collazo
A. Koukitu
Z. Sitar
Global Forum on Advanced Materials and Technologies for Sustainable Development (GFMAT 2016) 2016/6 Effects of lattice defects on thermal and optical properties of aluminum nitride ceramics Y. Kanechika
S. Fujii
K. Sugawara
Global Forum on Advanced Materials and Technologies for Sustainable Development (GFMAT 2016) 2016/6 Synthesis and analysis of novel AlN filler for high thermal conductivity resin composite Y. Kanechika
Y. Fukunaga
Meng Wan
S. Fujii
K. Sugawara
T. Kawamura
J. tatami
Workshop on Ion Exchange Membranes for Energy Applications EMEA2016 2016/6 AMFC activity in Tokuyama Corporation T. Isomura
Y. Yoshikawa
Journal Published Title Author
ISGN-6(The 6th International Symposium on Growth of III-Nitrides) 2015/11 Fabrication of vertical Schottky barrier diodes on n-type freestanding AlN substrates grown by hydride vaper phase epitaxy R. Yamamoto
T. Kinoshita
T. Nagashima
T. Obata
S. Takashima
R. Togashi
Y. Kumagai
R. Schlesser
R. Collazo
A. Koukitsu
Z. Sitar
Scottish Exhibition and Conference Centre Glasgow G3 8YW 2015/7 Ammonia Fuel Cell Project: Development of Anion Exchange Membrane Fuel Cells Y. Kikkawa
S. Watanabe
K. Eguchi
J. Kawahara
Y. Yamasaki
H. Kubo
Y. Takahashi
Workshop on Ion Exchange Membranes for Energy Applications-EMEA2015 2015/6 Tokuyama alkaline materials for fuel cell applications T. Isomura
S. Watanabe
Journal Published Title Author
2014ECS and SMEQ Joint International Meeting 2014/10 Optimization of Operation Conditions for Alkaline Membrane Fuel Cells H. Furuya
17th International Conference on Metalorganic Vapor Phase Epitaxy
(ICMOVPE-17)
2014/7 MOCVD growth of AlGaN alloy for DUV-LEDs T. Kinoshita
The 4th International Symposium on SiAlONs and Non-Oxides 2014/5 Development of AlN powder and ceramics for high thermal conductivity parts Y. Kanechika
ISGN5(5th International Symposium on Growth of Ⅲ-Nitrides) 2014/5 Deep-UV LEDs on HVPE-AlN Substrates T. Kinoshita
T. Obata
T. Ngashima
H. Yanagi
B. Moody
S. Mita
S. Inoue
Y. Kumagai
A. Koukitu
Z. Sitar
Journal Published Title Author
Photonics West2014 2014/2 Performance of DUV-LEDs on HVPE-AlN substrates T. Kinoshita
T. Obata
T. Ngashima
H. Yanagi
B. Moody
S. Mita
S. Inoue
Y. Kumagai
A. Koukitu
Z. Sitar
5th International Symposium on Advanced Ceramics (ISAC-5) 2013/12 Lattice defects analysis of AlN ceramics under sintering process Y. Kanechika
224th Electrochemical Society Meeting 2013/10 The Effect of Water Permeability of AEMs On AMFC Performance T. Isomura
ICNS-10 2013/08 DUV-LEDs Fabricated on HVPE-AlN Substrates T. Kinoshita
T. Obata
T. Nagashima
H. Yanagi
J. Xie
R. Collazo
S. Inoue
Y. Kumagai
A. Koukitu
Z. Sitar
Applied Physcs Express 2013/08 Performance and Reliability of Deep-Ultraviolet Light-Emitting Diodes Fabricated on AlN Substrates Prepared by Hydride Vapor Phase Epitaxy T. Kinoshita
H. Yanagi
T. Obata
T. Nagashima
B. Moody
S. Mita
S. Inoue
Y. Kumagai
A. Koukitu
Z. Sitar
Nuclear Science Symposium 2013 2013/05 Evaluation of scintillation properties of Eu-doped LiF-CaF2 eutectic for neutron detectors with different Eu concentration K. Fukuda
N. Kawaguchi
T. Yanagida
Y. Fujimoto
Nuclear Science Symposium 2013 2013/05 TSL and OSL properties of Ce and Eu doped LiCaAlF6 K. Fukuda
N. kawaguchi
T. Yanagida
Y. Fujimoto
Nuclear Science Symposium 2013 2013/05 Study of VUV scintillation in rare earth doped Lutetium fluoride K. Fukuda
S. Ishitsu
N. Kawaguchi
T. Yanagida
Y. Fujimoto
H. Sekiya
Nuclear Science Symposium 2013 2013/05 Optical and scintillation properties of Pr3+ activated KY3F10 with different dopant concentration K. Fukuda
N. kawaguchi
T. Yanagida
Y. Fujimoto
LEDIA'13 2013/04 Fabrication of DUV-LEDs on AlN Substrate T. Kinoshita
T. Obata
T. Ngashima
H. Yanagi
J. Xie
R. Collazo
S. Inoue
Y. Kumagai
A. Koukitu
Z. Sitar
Journal Published Title Author
Photonics West 2013/2 Deep-Ultraviolet Light-Emitting Diodes Fabricated on AlN Substrates Prepared by Hydride Vapor Phase Epitaxy T. Kinoshita,
K. Hironaka,
T. Obata,
T. Nagashima,
R. Dalmau,
R. Schlesser,
B. Moody,
J. Xie,
S. Inoue,
Y. Kumagai,
A. Koukitu,
Z. Sitar
Optics & Laser Technology 2012/11 Birefringence Simulations of Calcium Fluoride Single Crystal Used as Chamber Window of ArF Excimer Laser Light Source Y. Kitamura,
N. Miyazaki,
N. Nagakura,
K. Hashimoto,
I. Masada
Applied Physics Express 2012/11 Deep-ultraviolet light-emitting diodes fabricated on AlN substrates prepared by hydride vapor phase epitaxy T. Kinoshita,
K. Hironaka,
T. Obata,
T. Nagashima,
R. Dalmau,
R. Schlesser,
B. Moody,
J. Xie,
S. Inoue,
Y. Kumagai,
A. Koukitu,
Z. Sitar
Applied Physics Express 2012/11 Structural and optical properties of carbon-doped AlN substrates grown by hydride vapor phase epitaxy using AlN substrates prepared by physical vapor transport T. Nagashima,
Y. Kubota,
T. Kinoshita,
Y. Kumagai,
J. Xie,
R. Collazo,
H. Murakami,
H. Okamoto,
A. Koukity,
Z. Sitar
IEEE Nuclear Science Symposium 2012 2012/11 Neutron responses with different sized Eu doped LiCaAlF6 crystals N. Kawaguchi,
T. Yanagida,
Y. Fujimoto,
A. Yamazaki,
K. Watanabe,
K. Fukuda,
Y. Futami,
A. Yoshikawa,
A. Uritani,
T. Iguchi
Neutron News 2012/11 Study on Ce:LiCAF scintillator for 3He alternative detector T. Fujiwara,
H. Takahashi,
T. Yanagida,
K. Kamada,
K. Fukuda,
N. Kawaguchi,
N. L. Yamada,
M. Furusaka,
K. Watanabe,
Y. Fujimoto,
M. Uesaka
IEEE Transactions on Nuclear Science 2012/10 VUV Luminescence With Nd Doped KCaF3 Under X-Ray Excitation N. Kawaguchi,
T. Yanagida,
Y. Fujimoto,
Y. Futami,
K. Fukuda,
S. Kajimoto,
H. Fukumura,
Y. Yokota,
A. Yoshikawa
International Workshop on Nitride Semiconductors 2012/10 Optical and structural properties of intentionally C-doped thick HVPE AlN layers grown on PVT AlN substrates T. Nagashima,
Y. Kubota,
T. Kinoshita,
R. Schlesser,
B. Moody,
J. Xie,
H. Murakami,
Y. Kumagai,
A. Koukitu,
Z. Sitar
PRiME 2012 2012/10 Alkaline Membrane Fuel Cella with Several Alternative Fules K. Fukuta,
T. Negishi,
Y. Kikkawa,
K. Oda,
S. Watanabe,
H. Yanagi
PRiME 2012 2012/10 The Effect of Gas Diffusion Media on AMFC performance T. Isomura,
K. Fukuta,
H. Yanagi,
S. Ge,
Chao-Yang Wang
MS&T’S12 2012/10 Research and development of high performance AlN ceramics Y. Kanechika
IUMRS-ICEM 2012 2012/9 Investigation of Lattice Defects in Aluminum Nitride with High Thermal Conductivity by Positron Annihilation Lifetime Measurement Y. Kanechika,
Y. Horii,
M. Azuma,
H. Fukushima
Optical Society of America Applied Optics 2012/8 Birefringence Simulations of Calcium Fluoride Single Crystal Used as Chamber Window of ArF Excimer Laser Light Source N. Nagakura,
K. Hashimoto
6th International Fuel Cell Workshop2012 2012/8 Anion Conductive Materials for Polymer Electrolyte Fuel Cells -Current State and Issues- K. Fukuta
Gordon Conference 2012 2012/8 The Effect Operating Condition on Net Water Flux Across AEM T. Isomura,
K. Fukuta,
H. Yanagi,
S. Ge,
Chao-YangWang
Journal Published Title Author
Journal of Crystal Growth 2011/12 Preparation of freestanding AlN substrates by hydride vapor phase epitaxy using hybrid seed substrates T. Nagashima, 
A. Hakomori,
T. Shimoda,
K. Hironaka,
Y. Kubota, 
T. Kinoshita,
R. Yamamoto, 
K. Takada,
Y. Kumagai, 
A. Koukitu, 
H. Yanagi
The 28th Japan-Korea International Seminar on Ceramics,Nov. 2011 2011/11 Improvement of Mechanical Properties of Highly Thermal Conductive Aluminum Nitride Ceramics H. Aoki, 
S. Fujii, 
K. Sugawara, 
Y. Kanechika
Laser-Induced Damage in Optical Materials: 2011 2011/11 Potential of Large Diameter MgF2 Single Crystal grown by Czochralski Method Y. Hashimoto, 
Y. Ikeda,
M. Ariyuki, 
N. Mochizuki,
T. Nawata
China-SSL2011 2011/11 The properties of high thermal conductive and insulative aluminum nitride and their applications K. Sugawara
Meeting abstracts of 220th ECS Meeting, #1116 (2011) 2011/10 Development of Electrolyte Materials for the High Performance Alkaline Membrane Fuel Cells. H. Yanagi, 
M. Yamaguchi, 
S. Watanabe, 
K. Fukuta
Meeting documentation of f-cell 2011 2011/9 Tokuyama anion exchange membranes K. Fukuta
Abstracts of PBFC-5, #FC21 (2011) 2011/8 TOKUYAMA ELECTROLYTE MATERIALS FOR ALKALINE MEMBRANE FUEL CELLS K. Fukuta, 
T. Isomura, 
K. Sadasue, 
H. Inoue, 
Y. Chikashige, 
S. Watanabe, 
H. Yanagi
Meeting abstracts of 219th ECS Meeting, #377 (2011) 2011/5 Application of Alkaline Electrolyte Materials to the Direct Alcohol Fuel Cells K. Fukuta, 
H. Inoue, 
T. Negishi, 
S. Watanabe
Presentations of 2011 Alkaline Membrane Fuel Cell Workshop 2011/5 Electrolyte Materials for AMFCs and AMFC Performance K. Fukuta
Journal Published Title Author
IEEE 2010 Nuclear Science Symposium Conference Record (2011),3968-3970 2011/1 Thermal Neutron Imaging Tests with Ce Doped LiCaAlF6 and Sealed 252Cf Source N. Kawaguchi, 
T. Yanagida, 
Y. Fujimoto, 
Y. Yokota, 
K. Kamada, 
K. Fukuda, 
T. Suyama, 
K. Watanabe, 
A. Yamazaki, 
A. Yoshikawa
IEEE 2010 Nuclear Science Symposium Conference Record (2011),1823-1826 2011/1 Neutron Response of Rare-Earth-Doped 6LiF/CaF2 Eutectic Composites with the Ordered Lamellar Structure N. Kawaguchi, 
T. Yanagida, 
Y. Fujimoto, 
Y. Yokota, 
K. Kamada, 
K. Fukuda, 
T. Suyama, 
K. Watanabe, 
A. Yamazaki, 
A. Yoshikawa
IEEE 2010 Nuclear Science Symposium Conference Record (2011),1004-1006 2011/1 Thermal Neutron Imaging Tests with Rare-Earth-Ion-Doped LiCaAlF6 and Sealed 252Cf Source N. Kawaguchi, 
T. Yanagida, 
Y. Fujimoto, 
Y. Yokota, 
K. Kamada, 
K. Fukuda, 
T. Suyama, 
K. Watanabe, 
A. Yamazaki, 
A. Yoshikawa
IEEE NSS/MIC 2010 2010/10 Thermal Neutron Imaging Tests with Rare-Earth-Ion-Doped LiCaAlF6 and Sealed 252Cf Source N. Kawaguchi
K. Fukuda, 
T. Yanagida
Y. Fujimoto, 
Y. Yokota, 
K. Watanabe, 
A. Yamazaki
T. Suyama, 
A. Yoshikawa
IEEE NSS/MIC 2010 2010/10 Neutron Response of Rare-Earth-Doped 6LiF/CaF2 Eutectic Composites with the Ordered Lamellar Structure N. Kawaguchi
K. Fukuda, 
T. Yanagida
Y. Fujimoto, 
Y. Yokota
K. Watanabe, 
A. Yamazaki
T. Suyama, 
A. Yoshikawa
218th ECSMeeting 2010/10 Determination of carbonate ion in MEA during the alkaline membrane fuel cell (AMFC) operation Shin Watanabe,
Kenji Fukuta
Hiroyuki Yanagi
ECS Transaction 33(1) 1837-1845(2010) 2010/10 Determination of carbonate ion in MEA During the alkaline membrane fuel cell (AMFC) operation S. Watanabe, 
K. Fukuta
H. Yanagi
218th ECSMeeting 2010/10 Alkaline Membrane Fuel Cell Operated at Elevated Temperatures Takenori Isomura,
Kenji Fukuta
Hiroyuki Yanagi, 
Shanhai Ge
Chao-Yang Wang
NSS Conference Record, IEEE NSS/MIC (2010), Neutron Detectorsand Instrumentation, N34-337 2010/10 Neutron Response of Rare-Earth-Doped 6LiF/CaF2 Eutectic Composites with the Ordered Lamellar Structure N. Kawaguchi, 
K. Fukuda, 
T. Yanagidaa, 
Y. Fujimoto, 
Y. Yokota, 
K. Watanabe, 
A. Yamazaki, 
T. Suyama, 
A. Yoshikawa
NSS Conference Record, IEEE NSS/MIC (2010), Neutron Detectorsand Instrumentation III, N63-5 2010/10 Neutron Response of Rare-Earth-Doped 6LiF/CaF2 Eutectic Composites with the Ordered Lamellar Structure N. Kawaguchi, 
T. Yanagida, 
Y. Fujimoto, 
Y. Yokota, 
K. Kamada, 
K. Fukuda, 
T. Suyama, 
K. Watanabe, 
A. Yamazaki, 
A. Yoshikawa
NSS Conference Record, IEEE NSS/MIC (2010), 3He Alternatives for Neutron Detection II, HE2-2 2010/10 Thermal Neutron Imaging Tests with Ce Doped LiCaAlF6 and Sealed 252Cf Source N. Kawaguchi, 
T. Yanagida, 
Y. Fujimoto, 
Y. Yokota, 
K. Kamada, 
K. Fukuda, 
T. Suyama, 
K. Watanabe, 
A. Yamazaki, 
A. Yoshikawa
NSS Conference Record, IEEE NSS/MIC (2010), Neutron Detectorsand Instrumentation, N34-340 2010/10 Thermal Neutron Imaging Tests with Rare-Earth-Ion-Doped LiCaAlF6 and Sealed 252Cf Source N. Kawaguchi, 
T. Yanagida, 
Y. Fujimoto, 
Y. Yokota, 
K. Kamada, 
K. Fukuda, 
T. Suyama, 
K. Watanabe, 
A. Yamazaki, 
A. Yoshikawa
China-SSL2010 2010/10 Technological Trends of Aluminum Nitride as a Heat Dissipative Material Yukihiro Kanechika
2nd Progress of MEA 2010/9 Performanceof the State of the Art MEA for Alkaline Membrane Fuel Cells Takenori Isomura,
Kenji Fukuta
Hiroyuki Yanagi,
Shanhai Ge
Chao-Yang Wan
Optical Materials, 32(10), 1325-1328 (2010) 2010/8 Ndconcentration dependence on the optical and scintillation properties of Nddoped BaF2 Noriaki Kawaguchi, 
Takayuki Yanagida, 
Yoshisuke Futami, 
Kentaro Fukuda, 
Toshihisa Suyama, 
Yuui Yokota, 
Akira Yoshikawa
Gordon Research Conference Fuel Cells 2010/8 Progress on AlkalineMembrane Fuel Cell Performance and Durability Takenori Isomura,
Kenji Fukuta
Hiroyuki Yanagi,
Shanhai Ge
Chao-Yang Wang
Optical Materials, Vol. 32, Issue 9 (2010)  1142-1145 July 2010 2010/7 Crystalgrowth and scintillation characteristics of the Nd3+ doped LaF3 single crystal K. Fukuda, 
N. Kawaguchi, 
S. Ishizu, 
T. Yanagida, 
T. Suyama, 
M. Nikl, 
A. Yoshikawa
3rd International Symposium on SiAlONS and Non-Oxides 2010/6 Insitu High Temperature Observation of Thin Surface Al2O3 Layer on Fine AlNPowders and the Effects of Oxygen on the Properties of AlN Ceramics Yukihiro Kanechika
4th International Conference on Science and Technology ofAdvanced Ceramics 2010/6 Development of aluminum nitride products for automobile Yutaka Fukunaga, 
Yukihiro Kanechika, 
Hideki Sato
Ceramic Transactions, Vol.215, pp.49-64 (2010) 2010/6 Therelation between optical properties and lattice defects of translucentaluminum nitride ceramics fabricated by the novel annealing process Yukihiro Kanechika, 
Yuriko Kaito, 
Masanobu Azuma, 
Hiroshi Fukushima
217th ECS Meeting 2010/5 Improved Maximum power density of alkaline membrane fuel cells (AMFCs) by theoptimization of catalyst layer construction Kenji Fukuta,
Hiroshi Inoue
Yohei Chikashige,
Hiroyuki Yanagi
ECS Transaction
28(30) 221-225 (2010)
2010/5 Improved Maximum Power Density of Alkaline Membrane Fuel Cells (AMFCs) by the Optimization of MEAConstruction Kenji Fukuta
Hiroshi Inoue
Yohei Chikashige
Hiroyuki Yanagi
ECS Transaction
28 (30) 221-225 (2010)
2010/5 Improved Maximum Power Density of Alkaline Membrane Fuel Cells (AMFCs) by the Optimization of MEAConstruction Kenji Fukuta,
Hiroshi Inoue
Yohei Chikashige,
Hiroyuki Yanagi
12th Symposium on Radiation Measurements and Applications 2010/5 Fabricationand characterization of large size 6LiF/CaF2: Eu eutectic composites with the ordered lamellar structure N. Kawaguchi, 
K. Fukuda
T. Yanagida, 
Y. Fujimoto
Y. Yokota, 
T. Suyama, 
K. Watanabe, 
A. Yoshikawa
12th Symposium on Radiation Measurements and Applications 2010/5 Thermalneutron imaging with rare-earth-ion-doped LiCaAlF6 scintillators and a sealed 252Cf source N. Kawaguchi, 
T. Yanagida, 
Y. Fujimoto, 
Y. Yokota, 
K. Kamada, 
K. Fukuda, 
T. Suyama, 
K. Watanabe, 
A. Yamazaki, 
A. Yoshikawa

Top Page