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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 72 3957 3830 173 170 455 24114

Tetsuo Sakai publications per year

The chart shows the history of publications by Tetsuo Sakai between 1965 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Tetsuo Sakai published across 61 years, from 1965 to 2025, averaging 7.6 papers a year. Output peaked at 28 publications in 2007. 1 of the 462 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1965 to 2025. Vertical axis: number of publications, 0 to 28. Peak 28 publications in 2007. 1965: 1 publication 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 1 publication 1974: 0 publications 1975: 0 publications 1976: 4 publications 1977: 3 publications 1978: 2 publications 1979: 2 publications 1980: 2 publications 1981: 4 publications 1982: 4 publications 1983: 0 publications 1984: 2 publications 1985: 4 publications 1986: 1 publication 1987: 5 publications 1988: 2 publications 1989: 3 publications 1990: 6 publications 1991: 6 publications 1992: 3 publications 1993: 12 publications 1994: 8 publications 1995: 11 publications 1996: 9 publications 1997: 16 publications 1998: 11 publications 1999: 22 publications 2000: 19 publications 2001: 22 publications 2002: 19 publications 2003: 24 publications 2004: 17 publications 2005: 16 publications 2006: 17 publications 2007: 28 publications 2008: 15 publications 2009: 13 publications 2010: 27 publications 2011: 19 publications 2012: 26 publications 2013: 18 publications 2014: 13 publications 2015: 8 publications 2016: 5 publications 2017: 5 publications 2018: 2 publications 2019: 1 publication 2020: 0 publications 2021: 0 publications 2022: 1 publication 2023: 2 publications 2024: 0 publications 2025: 1 publication
1965 2025

462 publications in total across all disciplines

View publications per year as a table
Tetsuo Sakai: publications per year, 1965 to 2025
Year Publications
1965 1
1966 0
1967 0
1968 0
1969 0
1970 0
1971 0
1972 0
1973 1
1974 0
1975 0
1976 4
1977 3
1978 2
1979 2
1980 2
1981 4
1982 4
1983 0
1984 2
1985 4
1986 1
1987 5
1988 2
1989 3
1990 6
1991 6
1992 3
1993 12
1994 8
1995 11
1996 9
1997 16
1998 11
1999 22
2000 19
2001 22
2002 19
2003 24
2004 17
2005 16
2006 17
2007 28
2008 15
2009 13
2010 27
2011 19
2012 26
2013 18
2014 13
2015 8
2016 5
2017 5
2018 2
2019 1
2020 0
2021 0
2022 1
2023 2
2024 0
2025 1
Total 462
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Tetsuo Sakai publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where Tetsuo Sakai sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 57 bars. Horizontal axis: publications, 50–69 to 1,163+. Vertical axis: number of scientists, 0 to 891. Most scientists, 891, have 190–209 publications. The last bar groups every scientist with 1,163 publications or more. The highlighted bar, 450–469 publications, is where this scientist sits. 50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50–69 publications 1,163+

This scientist: 455 publications — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

View publications distribution as a table
Number of Materials Science scientists by publication count, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
Publications Scientists This scientist
50–69 28
70–89 152
90–109 356
110–129 487
130–149 723
150–169 835
170–189 850
190–209 891
210–229 862
230–249 766
250–269 726
270–289 665
290–309 593
310–329 537
330–349 477
350–369 440
370–389 356
390–409 321
410–429 256
430–449 246
450–469 216 455
470–489 212
490–509 174
510–529 194
530–549 162
550–569 131
570–589 111
590–609 103
610–629 99
630–649 77
650–669 92
670–689 56
690–709 53
710–729 53
730–749 38
750–769 52
770–789 43
790–809 38
810–829 34
830–849 25
850–869 18
870–889 20
890–909 24
910–929 27
930–949 20
950–969 17
970–989 10
990–1,009 16
1,010–1,029 13
1,030–1,049 12
1,050–1,069 9
1,070–1,089 8
1,090–1,109 7
1,110–1,129 9
1,130–1,149 2
1,150–1,162 5
1,163+ 100
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Tetsuo Sakai D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where Tetsuo Sakai sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 64 bars. Horizontal axis: D-Index, 40–41 to 165+. Vertical axis: number of scientists, 0 to 667. Most scientists, 667, have 52–53 D-Index. The last bar groups every scientist with 165 D-Index or more. The highlighted bar, 72–73 D-Index, is where this scientist sits. 40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40–41 D-Index 165+

This scientist: 72 D-Index — 69th percentile

69% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

View D-Index distribution as a table
Number of Materials Science scientists by D-index, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
D-Index Scientists This scientist
40–41 211
42–43 450
44–45 612
46–47 612
48–49 598
50–51 657
52–53 667
54–55 621
56–57 597
58–59 610
60–61 587
62–63 606
64–65 533
66–67 490
68–69 469
70–71 378
72–73 421 72
74–75 359
76–77 323
78–79 299
80–81 230
82–83 210
84–85 195
86–87 203
88–89 175
90–91 175
92–93 142
94–95 121
96–97 117
98–99 107
100–101 88
102–103 85
104–105 68
106–107 62
108–109 57
110–111 45
112–113 49
114–115 50
116–117 34
118–119 38
120–121 37
122–123 29
124–125 28
126–127 24
128–129 33
130–131 28
132–133 21
134–135 20
136–137 23
138–139 17
140–141 12
142–143 17
144–145 21
146–147 13
148–149 11
150–151 14
152–153 13
154–155 9
156–157 10
158–159 7
160–161 4
162–163 4
164 3
165+ 98
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Overview

Tetsuo Sakai is a researcher affiliated with the National Institute of Advanced Industrial Science and Technology in Japan. Their body of work primarily spans the field of engineering, with a concentration in mechanical engineering, industrial and manufacturing engineering, computational mechanics, electrical and electronic engineering, and atomic and molecular physics, and optics.

The scientist's research covers a variety of interrelated topics, including:

  • Welding Techniques and Residual Stresses
  • Manufacturing Process and Optimization
  • Additive Manufacturing Materials and Processes
  • Laser Material Processing Techniques
  • Surface Roughness and Optical Measurements
  • Photonic Crystals and Applications
  • Advanced Battery Materials and Technologies

The following list details some of their recent published papers, showing a focus on laser welding, cyber-physical systems, and materials related to manufacturing and battery technology:

  • Automation of Laser Welding Process by Cyber-Physical System (CPS) Approach, 2021, JOURNAL OF THE JAPAN WELDING SOCIETY
  • Laser welding of highly reflective metal with absorbance-enhanced surface structure fabricated using picosecond laser, 2020, Applied Physics A
  • Li pre-doping technique using perforated electrodes for the cells with a rubber-derived sulfur composite cathode, 2022, Journal of Power Sources
  • Cyber-Physical System for Automation of Welding and its application for Process Quality Assurance, 2023, The Proceedings of the Conference on Information Intelligence and Precision Equipment IIP
  • Rehabilitation Intervention for an Infant with Simple Epidermolysis Bullosa from NICU to Home Discharge: A Case Report, 2025, Journal of Clinical Medicine

Sakai frequently collaborates with several coauthors, reflecting interdisciplinary teamwork in their research projects. The most recurring coauthors include:

  • Masatoshi Hirono
  • Taisuke Washitani
  • Shinya Kudo
  • Yasutomo Shiomi
  • Masakazu Kikawada

Their publications appear across diverse scientific venues, indicating engagement with various academic communities. Frequent publication venues include:

  • JOURNAL OF THE JAPAN WELDING SOCIETY
  • Applied Physics A
  • Journal of Power Sources
  • The Proceedings of the Conference on Information Intelligence and Precision Equipment IIP
  • Journal of Clinical Medicine

Best Publications

  • Novel ultra-high straining process for bulk materials—development of the accumulative roll-bonding (ARB) process

    Y. Saito;H. Utsunomiya;N. Tsuji;T. Sakai

  • Ultra-fine grained bulk aluminum produced by accumulative roll-bonding (ARB) process

    Y. Saito;N. Tsuji;H. Utsunomiya;T. Sakai

  • Electrochemical impedance and deterioration behavior of metal hydride electrodes

    Nobuhiro Kuriyama;Tetsuo Sakai;Hiroshi Miyamura;Itsuki Uehara

  • Synthesis and structure determination of a new series of hydrogen storage alloys; RMg2Ni9 (R=La, Ce, Pr, Nd, Sm and Gd) built from MgNi2 Laves-type layers alternating with AB5 layers

    K. Kadir;T. Sakai;I. Uehara

  • Electrochemical hydrogen storage in MoS2 nanotubes.

    Jun Chen;Nobuhiro Kuriyama;Huatang Yuan;Hiroyuki T. Takeshita

  • Some factors affecting the cycle lives of LaNi5-based alloy electrodes of hydrogen batteries

    Tetsuo Sakai;Keisuke Oguro;Hiroshi Miyamura;Nobuhiro Kuriyama

  • Role of shear strain in ultragrain refinement by accumulative roll-bonding (ARB) process

    S.H Lee;Y Saito;N Tsuji;H Utsunomiya

  • Reversible Hydrogen Storage via Titanium-Catalyzed LiAlH4 and Li3AlH6

    Jun Chen;Nobuhiro Kuriyama;Qiang Xu;and Hiroyuki T. Takeshita

  • Battery performances and thermal stability of polyacrylonitrile nano-fiber-based nonwoven separators for Li-ion battery

    Tae-Hyung Cho;Masanao Tanaka;Hiroshi Onishi;Yuka Kondo

  • Converting cobalt oxide subunits in cobalt metal-organic framework into agglomerated Co3O4 nanoparticles as an electrode material for lithium ion battery

    Bo Liu;Bo Liu;Xinbo Zhang;Hiroshi Shioyama;Takashi Mukai

  • High-capacity organic positive-electrode material based on a benzoquinone derivative for use in rechargeable lithium batteries

    Masaru Yao;Hiroshi Senoh;Shin-ichi Yamazaki;Zyun Siroma

  • Microstructures and mechanical properties of 6061 aluminum alloy processed by accumulative roll-bonding

    Unknown

  • Effect of redundant shear strain on microstructure and texture evolution during accumulative roll-bonding in ultralow carbon IF steel

    Naoya Kamikawa;T. Sakai;N. Tsuji

  • Correlating Capacity Fading and Structural Changes in Li1 + y Mn2 − y O 4 − δ Spinel Cathode Materials: A Systematic Study on the Effects of Li/Mn Ratio and Oxygen Deficiency

    Yongyao Xia;Tetsuo Sakai;Takuya Fujieda;X. Q. Yang

  • Rechargeable hydrogen batteries using rare-earth-based hydrogen storage alloys

    T. Sakai;H. Yoshinaga;H. Miyamura;N. Kuriyama

  • Structural investigation and hydrogen capacity of CaMg2Ni9: a new phase in the AB2C9 system isostructural with LaMg2Ni9

    K. Kadir;N. Kuriyama;T. Sakai;I. Uehara

  • Composite nonwoven separator for lithium-ion battery: Development and characterization

    Tae-Hyung Cho;Masanao Tanaka;Hiroshi Ohnishi;Yuka Kondo

  • Hydriding properties of LaNi3 and CaNi3 and their substitutes with PuNi3-type structure

    J Chen;H.T Takeshita;H Tanaka;N Kuriyama

  • Metal Hydride Anodes for Nickel‐Hydrogen Secondary Battery

    Tetsuo Sakai;Hiroshi Miyamura;Nobuhiro Kuriyama;Akihiko Kato

  • Gas Permeation Properties of Solid Polymer Electrolyte (SPE) Membranes

    Unknown

  • Effects of Microencapsulation of Hydrogen Storage Alloy on the Performances of Sealed Nickel/Metal Hydride Batteries

    Tetsuo Sakai;Hiroshi Ishikawa;Keisuke Oguro;Chiaki Iwakura

  • Thermal and electrochemical stability of cathode materials in solid polymer electrolyte

    Yongyao Xia;Takuya Fujieda;Kuniaki Tatsumi;Pier Paolo Prosini

  • Hydrogen Storage Alloys with PuNi3 ‐ Type Structure as Metal Hydride Electrodes

    J. Chen;N. Kuriyama;H. T. Takeshita;H. Tanaka

Frequent Co-Authors

Hiroyuki Kageyama
Hiroyuki Kageyama National Institute of Advanced Industrial Science and Technology
Mitsuharu Tabuchi
Mitsuharu Tabuchi National Institute of Advanced Industrial Science and Technology
Kazuaki Yasuda
Kazuaki Yasuda National Institute of Advanced Industrial Science and Technology
Qiang Xu
Qiang Xu Kyoto University
Jiangfeng Ni
Jiangfeng Ni Soochow University
Tsuyoshi Honma
Tsuyoshi Honma Nagaoka University of Technology
Takayuki Komatsu
Takayuki Komatsu Nagaoka University of Technology
Masatake Haruta
Masatake Haruta Tokyo Metropolitan University
Yongyao Xia
Yongyao Xia Fudan University

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