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Chiaki Iwakura

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Materials Science 56 8410 482 225 8318
Chemistry 56 11929 885 222 8221

Chiaki Iwakura publications per year

The chart shows the history of publications by Chiaki Iwakura between 1968 and 2008, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Chiaki Iwakura published across 41 years, from 1968 to 2008, averaging 5.6 papers a year. Output peaked at 17 publications in 1998. 3 of the 229 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1968 to 2008. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 1998. 1968: 2 publications 1969: 0 publications 1970: 1 publication 1971: 2 publications 1972: 5 publications 1973: 5 publications 1974: 2 publications 1975: 0 publications 1976: 4 publications 1977: 10 publications 1978: 6 publications 1979: 11 publications 1980: 9 publications 1981: 5 publications 1982: 3 publications 1983: 4 publications 1984: 3 publications 1985: 2 publications 1986: 1 publication 1987: 2 publications 1988: 4 publications 1989: 3 publications 1990: 7 publications 1991: 2 publications 1992: 4 publications 1993: 7 publications 1994: 3 publications 1995: 10 publications 1996: 12 publications 1997: 11 publications 1998: 17 publications 1999: 14 publications 2000: 8 publications 2001: 11 publications 2002: 9 publications 2003: 9 publications 2004: 5 publications 2005: 4 publications 2006: 9 publications 2007: 2 publications 2008: 1 publication
1968 2008

229 publications in total across all disciplines

View publications per year as a table
Chiaki Iwakura: publications per year, 1968 to 2008
Year Publications
1968 2
1969 0
1970 1
1971 2
1972 5
1973 5
1974 2
1975 0
1976 4
1977 10
1978 6
1979 11
1980 9
1981 5
1982 3
1983 4
1984 3
1985 2
1986 1
1987 2
1988 4
1989 3
1990 7
1991 2
1992 4
1993 7
1994 3
1995 10
1996 12
1997 11
1998 17
1999 14
2000 8
2001 11
2002 9
2003 9
2004 5
2005 4
2006 9
2007 2
2008 1
Total 229
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Chiaki Iwakura 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 Chiaki Iwakura 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, 210–229 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: 225 publications — 39th percentile

39% 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
210–229 862 225
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
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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Chiaki Iwakura 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 Chiaki Iwakura 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, 56–57 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: 56 D-Index — 37th percentile

37% 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 56
58–59 610
60–61 587
62–63 606
64–65 533
66–67 490
68–69 469
70–71 378
72–73 421
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

Chiaki Iwakura is affiliated with Osaka Metropolitan University in Japan. Their academic background and research activities revolve around the institutional environment of this university.

While specific details on publications, research topics, and areas of study are not available, it is clear that Chiaki Iwakura is an active member of an academic community at a notable Japanese university.

No data on recent papers, frequent co-authors, publication venues, book publications, fields or subfields of study, main topics, or awards have been recorded.

Chiaki Iwakura is currently living and continues their scholarly work under the institutional framework of Osaka Metropolitan University.

Best Publications

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

    Tetsuo Sakai;Keisuke Oguro;Hiroshi Miyamura;Nobuhiro Kuriyama

  • Glucose sensitivity of polypyrrole films containing immobilized glucose oxidase and hydroquinonesulfonate ions

    Yoshio. Kajiya;Hiroko. Sugai;Chiaki. Iwakura;Hiroshi. Yoneyama

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

    Tetsuo Sakai;Hiroshi Ishikawa;Keisuke Oguro;Chiaki Iwakura

  • Electroless deposition of Ni–B, Co–B and Ni–Co–B alloys using dimethylamineborane as a reducing agent

    T. Saito;E. Sato;M. Matsuoka;C. Iwakura

  • The influence of small amounts of added elements on various anode performance characteristics for LaNi2.5Co2.5-based alloys

    Tetsuo Sakai;Hiroshi Miyamura;Nobuhiro Kuriyama;Akihiko Kato

  • Solid State Ionics for Batteries

    Tsutomu Minami;Masahiro Tatsumisago;Masataka Wakihara;Chiaki Iwakura

  • Effects of substitution with foreign metals on the crystallographic, thermodynamic and electrochemical properties of AB5-type hydrogen storage alloys

    Chiaki Iwakura;Takafumi Oura;Hiroshi Inoue;Masao Matsuoka

  • Surface modification of metal hydride negative electrodes and their charge/discharge performance

    Chiaki Iwakura;Masao Matsuoka;Katsuhiko Asai;Tatsuoki Kohno

  • The anodic evolution of oxygen on Co3O4 film electrodes in alkaline solutions

    Chiaki Iwakura;Akio Honji;Hideo Tamura

  • Self‐Discharge Mechanism of Nickel‐Hydrogen Batteries Using Metal Hydride Anodes

    Chiaki Iwakura;Yoshio Kajiya;Hiroshi Yoneyama;Tetsuo Sakai

  • Electrochemical characterization of various metal foils as a current collector of positive electrode for rechargeable lithium batteries

    Chiaki Iwakura;Yuko Fukumoto;Hiroshi Inoue;Syunpei Ohashi

  • Electrochemical characteristics of a homogeneous amorphous alloy prepared by ball-milling Mg2Ni with Ni

    Shinji Nohara;Naoya Fujita;Shu Guo Zhang;Hiroshi Inoue

  • Simultaneous immobilization of glucose oxidase and a mediator in conducting polymer films

    Chiaki Iwakura;Yoshio Kajiya;Hiroshi Yoneyama

  • The possible use of polymer gel electrolytes in nickel/metal hydride battery

    Unknown

  • Hydriding and electrochemical characteristics of a homogeneous amorphous Mg2Ni-Ni composite

    Chiaki Iwakura;Hiroshi Inoue;Shu Guo Zhang;Shinji Nohara

  • Electrochemical characteristics of new electric double layer capacitor with acidic polymer hydrogel electrolyte

    Hajime Wada;Kumiko Yoshikawa;Shinji Nohara;Naoji Furukawa

  • Electrochemical characterization of MmNi4.0-xMn0.75Al0.25Cox electrodes as a function of cobalt content

    Chiaki Iwakura;Kazuhiro Fukuda;Hiroshi Senoh;Hiroshi Inoue

  • Preparation of ruthenium dioxide electrodes and their anodic polarization characteristics in acidic solutions

    Chiaki Iwakura;Kazuhiro Hirao;Hideo Tamura

  • Electrochemical characterization of new electric double layer capacitor with polymer hydrogel electrolyte

    Shinji Nohara;Hajime Wada;Naoji Furukawa;Hiroshi Inoue

  • Hybrid capacitor with activated carbon electrode, Ni(OH)2 electrode and polymer hydrogel electrolyte

    Shinji Nohara;Toshihide Asahina;Hajime Wada;Naoji Furukawa

  • Surface modification of MgNi alloy with graphite by ball-milling for use in nickel-metal hydride batteries

    Chiaki Iwakura;Shinji Nohara;Hiroshi Inoue;Yukio Fukumoto

Frequent Co-Authors

Masao Matsuoka
Masao Matsuoka Kumamoto University
Hiroshi Yoneyama
Hiroshi Yoneyama Osaka University
Phl Peter Notten
Phl Peter Notten Eindhoven University of Technology
Masahiro Tatsumisago
Masahiro Tatsumisago Osaka Metropolitan University
Tsuyoshi Kawai
Tsuyoshi Kawai Nara Institute of Science and Technology
Atsunori Matsuda
Atsunori Matsuda Toyohashi University of Technology
Tsutomu Minami
Tsutomu Minami Osaka Metropolitan University
Isao Tanaka
Isao Tanaka Kyoto University

External Links

Personal website of Chiaki Iwakura

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Best Scientists Citing Chiaki Iwakura

Qidong Wang

Qidong Wang

Zhejiang University

Publications: 42

Nitin K. Ingle

Nitin K. Ingle

Applied Materials (United States)

Publications: 38

Steven J. Visco

Steven J. Visco

PolyPlus Battery Company (United States)

Publications: 33

Mingxia Gao

Mingxia Gao

Zhejiang University

Publications: 26

Limin Wang

Limin Wang

Chinese Academy of Sciences

Publications: 23

Yongfeng Liu

Yongfeng Liu

Zhejiang University

Publications: 21

Hongge Pan

Hongge Pan

Zhejiang University

Publications: 21

Lutgard C. De Jonghe

Lutgard C. De Jonghe

University of California, Berkeley

Publications: 20

Lixian Sun

Lixian Sun

Guilin University of Electronic Technology

Publications: 19

Akitoshi Hayashi

Akitoshi Hayashi

Osaka Metropolitan University

Publications: 17

Yijing Wang

Yijing Wang

Nankai University

Publications: 15

Phl Peter Notten

Phl Peter Notten

Eindhoven University of Technology

Publications: 15

Dmitry Lubomirsky

Dmitry Lubomirsky

Applied Materials (United States)

Publications: 14

Lifang Jiao

Lifang Jiao

Nankai University

Publications: 13

Yaoming Wu

Yaoming Wu

Chinese Academy of Sciences

Publications: 12

Masahiro Tatsumisago

Masahiro Tatsumisago

Osaka Metropolitan University

Publications: 11

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