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M. Okada · SciRah

Researcher profile · Semantic Scholar

M. Okada

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M. Okada — researcher profile on SciRah

h-index: 30
Works: 233
Citations: 3,044

Most-cited papers

Ti-V-Cr b.c.c. alloys with high protium content
M. Okada, T. Kuriiwa, T. Tamura, H. Takamura +1 more
2002158 citations
Semantic Scholar
Effects of V content on hydrogen storage properties of V–Ti–Cr alloys with high desorption pressure
T. Kuriiwa, T. Maruyama, A. Kamegawa, M. Okada
201084 citations
Semantic Scholar
Protium absorption properties and protide formations of Ti-Cr-V alloys
T. Tamura, Takashi Kazumi, A. Kamegawa, H. Takamura +1 more
200383 citations
Semantic Scholar
Protium absorption properties of Ti–V–Cr–Mn alloys with a b.c.c. structure
T. Tamura, Y. Tominaga, K. Matsumoto, Takeshi Fuda +4 more
200267 citations
Semantic Scholar
Role of intermetallics in hydrogen storage materials
M. Okada, T. Kuriiwa, A. Kamegawa, H. Takamura
200255 citations
Semantic Scholar
Oxygen Permeation Properties of Ceria-Ferrite-Based Composites
H. Takamura, K. Okumura, Y. Koshino, A. Kamegawa +1 more
200453 citations
Semantic Scholar
High-pressure synthesis of novel compounds in an Mg–Ni system
A. Kamegawa, Y. Goto, Riki Kataoka, H. Takamura +1 more
200852 citations
Semantic Scholar
High-pressure synthesis of novel hydrides in Mg–RE–H systems (RE = Y, La, Ce, Pr, Sm, Gd, Tb, Dy)
A. Kamegawa, Y. Goto, H. Kakuta, H. Takamura +1 more
200644 citations
Semantic Scholar
Diffusion mechanisms in B2 NiAl phase studied by experiments on Kirkendall effect and interdiffusion under high pressures
R. Nakamura, Kohtaro Fujita, Y. Iijima, M. Okada
200343 citations
Semantic Scholar
Oxygen permeation and methane reforming properties of ceria-based composite membranes
H. Takamura, T. Kobayashi, Takehiro Kasahara, A. Kamegawa +1 more
200640 citations
Semantic Scholar
Grain size refinement in Mg–Al-based alloy by hydrogen treatment
H. Takamura, T. Miyashita, A. Kamegawa, M. Okada
200338 citations
Semantic Scholar
Effect of absorption-desorption cycles on structure and stability of protides in Ti-Cr-V alloys
Takashi Kazumi, T. Tamura, A. Kamegawa, H. Takamura +1 more
200236 citations Open access
Semantic Scholar
Protium absorption-desorption properties of Ti-Cr-Mo bcc solid solution alloys
A. Kamegawa, T. Tamura, H. Takamura, M. Okada
200333 citations
Semantic Scholar
Cyclic Properties of Protium Absorption-Desorption in Ti-Cr-V Alloys
K. Shirasaki, T. Tamura, T. Kuriiwa, T. Goto +3 more
200233 citations Open access
Semantic Scholar
Electrode and oxygen permeation properties of (Ce, Sm)O2–MFe2O4 composite thin films (M = Co and Mn)
H. Takamura, Y. Koshino, A. Kamegawa, M. Okada
200631 citations
Semantic Scholar
Crystal structure of novel hydrides in a Mg-Ni-H system prepared under an ultra high pressure
H. Takamura, H. Kakuta, A. Kamegawa, M. Okada
200228 citations
Semantic Scholar
Effects of Protide Structures on Hysteresis in Ti-Cr-V Protium Absorption Alloys
T. Tamura, Takashi Kazumi, A. Kamegawa, H. Takamura +1 more
200228 citations Open access
Semantic Scholar
Fabrication and characteristics of planar-type methane reformer using ceria-based oxygen permeable membrane
H. Takamura, Masayuki Ogawa, Koichi Suehiro, Hiroo Takahashi +1 more
200824 citations
Semantic Scholar
Effect of synthesis pressure on hydride phases in Mg–M systems (M = Mn, Y)
Y. Goto, H. Kakuta, A. Kamegawa, H. Takamura +1 more
200324 citations Open access
Semantic Scholar
Synthesis of New Hydrides in Mg-Y Systems by Using High Pressure
Y. Goto, A. Kamegawa, H. Takamura, M. Okada
200223 citations Open access
Semantic Scholar
Crystal Structure and Protium Absorption Properties of Ti-Cr-X Alloys
A. Kamegawa, K. Shirasaki, T. Tamura, T. Kuriiwa +2 more
200222 citations Open access
Semantic Scholar
New function of hydrogen in materials
M. Okada, A. Kamegawa, J. Nakahigashi, A. Yamaguchi +2 more
201021 citations
Semantic Scholar
High Pressure Synthesis of Novel Compounds in Mg-TM Systems (TM=Ti-Zn)
Hiroaki Watanabe, Y. Goto, H. Kakuta, A. Kamegawa +2 more
200421 citations Open access
Semantic Scholar
Enhanced diffusion of Au in γ-Fe by vacancies induced under elevated hydrogen pressure
Y. Yamazaki, Y. Iijima, M. Okada
200421 citations
Semantic Scholar
Effects of Compositions on Formation of 1, 2 Protorides in Ti-Cr-V Alloys
T. Tamura, A. Kamegawa, H. Takamura, M. Okada
200221 citations Open access
Semantic Scholar
Ti–Cr–X protium absorbing alloys with high protium content for fuel-cell
M. Okada, T. Chou, A. Kamegawa, T. Tamura +3 more
200320 citations
Semantic Scholar
Grain size refinements of Mg alloys (AZ61, AZ91, ZK60) by HDDR treatment
T. Miyazawa, Yuko Kobayashi, A. Kamegawa, H. Takamura +1 more
200419 citations Open access
Semantic Scholar
Electrical conductivity of layered compounds in SrO–La2O3–TiO2 systems prepared by the Pechini process
H. Takamura, K. Enomoto, A. Kamegawa, M. Okada
200219 citations
Semantic Scholar
Electrical conductivity of ceria nanoparticles under high pressure
H. Takamura, J. Kobayashi, N. Takahashi, M. Okada
200918 citations
Semantic Scholar
Improvement of coercivity of anisotropic Nd-Fe-B HDDR powders by Ga addition
S. Sugimoto, H. Murai, N. Koike, H. Nakamura +6 more
200218 citations
Semantic Scholar
Novel hydrides in Mg–TM systems synthesized by high pressure (TM = Zr, Nb, Hf and Ta)
M. Okada, Y. Goto, Riki Kataoka, Y. Yambe +2 more
200717 citations
Semantic Scholar
High-pressure synthesis and energetics of MgCu with a CsCl-type structure
H. Takamura, H. Kakuta, Y. Goto, H. Watanabe +2 more
200517 citations
Semantic Scholar
Oxygen permeation properties and surface modification of acceptor-doped CeO2/MnFe2O4 composites
H. Takamura, H. Sugai, Masato Watanabe, Takehiro Kasahara +2 more
200616 citations
Semantic Scholar
Effects of dehydrogenation heat-treatment on electrical-mechanical properties for hydrogenated Cu-3 mass%Ti alloys
A. Kamegawa, T. Kuriiwa, M. Okada
201315 citations
Semantic Scholar
High-Pressure Synthesis of Novel Hydrides in Mg-TM Systems (TM = Zr, Nb and Mo)
Y. Goto, Takayuki Hayashi, Riki Kataoka, H. Kakuta +3 more
200515 citations Open access
Semantic Scholar
The Electronic Structure of MgY2H6+δ High-Pressure Hydride
H. Takamura, Y. Goto, A. Kamegawa, M. Okada
200315 citations Open access
Semantic Scholar
High-Pressure Synthesis of Novel Hydride in Mg-Ni (-H) System
Riki Kataoka, Y. Goto, A. Kamegawa, H. Takamura +1 more
200613 citations Open access
Semantic Scholar
Reactivity of hydrogen and ternary nitrides containing lithium and 13 group elements
H. Yamane, Tomomi Kano, A. Kamegawa, Masatoshi Shibata +3 more
200513 citations
Semantic Scholar
High-Pressure Synthesis of Novel Hydrides in Mg-RE Systems and Their Hydrogen Content (RE = Y, La)
H. Takamura, Y. Goto, A. Kamegawa, M. Okada
200313 citations Open access
Semantic Scholar
Hydrogen Storage Technology in High Pressure Science -Storaging Tank Engineering and Hydrogen Storage Media-
A. Kamegawa, M. Okada
200712 citations Open access
Semantic Scholar
Preparation and Oxygen Permeability of Gd-Doped Ceria and Spinel-Type Ferrite Composites
H. Takamura, M. Kawai, K. Okumura, A. Kamegawa +1 more
200212 citations
Semantic Scholar
Simultaneous Enhancement of Electrical Conductivities and Mechanical Properties in Cu-Ti Alloy by Hydrogenation Process
A. Kamegawa, Toru Iwaki, M. Okada
201011 citations Open access
Semantic Scholar
High-pressure synthesis of novel hydride in Mg–M systems (M = Li, Pd)
Y. Goto, H. Kakuta, A. Kamegawa, H. Takamura +1 more
200511 citations
Semantic Scholar
Hydrogen Isotope Effects on Absorption Properties of Ti-Cr-V Alloys
T. Tamura, A. Kamegawa, H. Takamura, M. Okada
200311 citations Open access
Semantic Scholar
Grain refinements of Al-Mg alloy by hydrogen heat-treatments
A. Kamegawa, T. Funayama, Junya Takahashi, H. Takamura +1 more
200510 citations Open access
Semantic Scholar
Grain-Size Refinements of Cu-3 mass%Ti Alloys by HDDR Treatments in Correlating with Their Electrical and Mechanical Properties
Toru Iwaki, T. Kuriiwa, A. Kamegawa, H. Takamura +1 more
20099 citations Open access
Semantic Scholar
High-pressure synthesis of novel hydride in Mg–Ni–H and Mg–Ni–Cu–H systems
Riki Kataoka, Y. Goto, A. Kamegawa, H. Takamura +1 more
20079 citations
Semantic Scholar
Optimum Hydrogen Desorption Properties in LiH-LiOH Composites
M. Kawakami, T. Kuriiwa, A. Kamegawa, H. Takamura +2 more
20098 citations Open access
Semantic Scholar
Effects of Al Addition on Structures and Protium Absorption-Desorption Properties of Ti-Cr Alloys
K. Shirasaki, T. Kuriiwa, T. Tamura, A. Kamegawa +2 more
20028 citations Open access
Semantic Scholar
High Pressure Synthesis of Novel Li-TM Hydrides (TM=Nb, Ta)
A. Kamegawa, Riki Kataoka, M. Okada
20127 citations Open access
Semantic Scholar

Frequent co-authors

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A. Kamegawa×45
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A. Kamegawa — researcher profile on SciRah
H. Takamura×40
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H. Takamura — researcher profile on SciRah
Y. Goto×13
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Y. Goto — researcher profile on SciRah
T. Tamura×12
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T. Tamura — researcher profile on SciRah

×10

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T. Kuriiwa — researcher profile on SciRah

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H. Kakuta — researcher profile on SciRah

Riki Kataoka×6

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Riki Kataoka — researcher profile on SciRah

Takashi Kazumi×3

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Takashi Kazumi — researcher profile on SciRah

K. Shirasaki×3

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K. Shirasaki — researcher profile on SciRah

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K. Okumura — researcher profile on SciRah

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Y. Koshino — researcher profile on SciRah

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Y. Iijima — researcher profile on SciRah