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Toyoki Kunitake

Toyoki Kunitake

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Chemistry
Japan
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 95 1621 1442 76 73 667 33612

Toyoki Kunitake publications per year

The chart shows the history of publications by Toyoki Kunitake between 1962 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Toyoki Kunitake published across 64 years, from 1962 to 2025, averaging 10.7 papers a year. Output peaked at 28 publications in 1992. 2 of the 686 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1962 to 2025. Vertical axis: number of publications, 0 to 28. Peak 28 publications in 1992. 1962: 1 publication 1963: 1 publication 1964: 2 publications 1965: 2 publications 1966: 4 publications 1967: 4 publications 1968: 7 publications 1969: 7 publications 1970: 11 publications 1971: 9 publications 1972: 8 publications 1973: 7 publications 1974: 6 publications 1975: 14 publications 1976: 18 publications 1977: 16 publications 1978: 11 publications 1979: 15 publications 1980: 13 publications 1981: 19 publications 1982: 7 publications 1983: 8 publications 1984: 17 publications 1985: 17 publications 1986: 18 publications 1987: 11 publications 1988: 12 publications 1989: 19 publications 1990: 14 publications 1991: 27 publications 1992: 28 publications 1993: 16 publications 1994: 27 publications 1995: 19 publications 1996: 28 publications 1997: 23 publications 1998: 20 publications 1999: 15 publications 2000: 7 publications 2001: 13 publications 2002: 19 publications 2003: 16 publications 2004: 13 publications 2005: 15 publications 2006: 23 publications 2007: 21 publications 2008: 15 publications 2009: 4 publications 2010: 6 publications 2011: 7 publications 2012: 14 publications 2013: 1 publication 2014: 0 publications 2015: 0 publications 2016: 1 publication 2017: 1 publication 2018: 1 publication 2019: 2 publications 2020: 0 publications 2021: 4 publications 2022: 0 publications 2023: 0 publications 2024: 0 publications 2025: 2 publications
1962 2025

686 publications in total across all disciplines

View publications per year as a table
Toyoki Kunitake: publications per year, 1962 to 2025
Year Publications
1962 1
1963 1
1964 2
1965 2
1966 4
1967 4
1968 7
1969 7
1970 11
1971 9
1972 8
1973 7
1974 6
1975 14
1976 18
1977 16
1978 11
1979 15
1980 13
1981 19
1982 7
1983 8
1984 17
1985 17
1986 18
1987 11
1988 12
1989 19
1990 14
1991 27
1992 28
1993 16
1994 27
1995 19
1996 28
1997 23
1998 20
1999 15
2000 7
2001 13
2002 19
2003 16
2004 13
2005 15
2006 23
2007 21
2008 15
2009 4
2010 6
2011 7
2012 14
2013 1
2014 0
2015 0
2016 1
2017 1
2018 1
2019 2
2020 0
2021 4
2022 0
2023 0
2024 0
2025 2
Total 686
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Toyoki Kunitake publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Toyoki Kunitake sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 661–680 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 667 publications — 95th percentile

95% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92 667
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Toyoki Kunitake D-index placement in Chemistry in 2026

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

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 94–95 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 95 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155 95
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Research.com Recognitions

  • 2026 - Research.com Chemistry in Japan Leader Award
  • 2025 - Research.com Chemistry in Japan Leader Award
  • 2022 - Research.com Chemistry in Japan Leader Award

Overview

Toyoki Kunitake is affiliated with Kyushu University in Japan and has contributed extensively to research in engineering, with a particular focus on membrane separation and gas transport as well as carbon dioxide capture technologies. Their work spans multiple subfields including mechanical engineering, biomedical engineering, electrical and electronic engineering, environmental engineering, and aspects of global and planetary change.

The scientist's research primarily addresses topics related to membrane separation and gas transport, carbon dioxide capture technologies, advanced sensor and energy harvesting materials, green IT and sustainability, CO2 sequestration and geologic interactions, atmospheric and environmental gas dynamics, and membrane separation technologies.

Recent publications by Toyoki Kunitake include the following papers:

  • "A new strategy for membrane-based direct air capture" (2020), published in Polymer Journal
  • "Geological storage of CO2-N2-O2 mixtures produced by membrane-based direct air capture (DAC)" (2021), published in Greenhouse Gases Science and Technology
  • "Robust, Hyper-Permeable Nanomembrane Composites of Poly(dimethylsiloxane) and Cellulose Nanofibers" (2021), published in ACS Applied Materials & Interfaces
  • "Design of Highly Efficient Nanomembranes Toward Direct Air Capture. Essential Role of Nanolayer Interface" (2025), published in Advanced Materials Interfaces
  • "Correction: A new strategy for membrane-based direct air capture" (2020), published in Polymer Journal

The frequent co-authors of Toyoki Kunitake include:

  • Shigenori Fujikawa
  • Roman Selyanchyn
  • Miho Ariyoshi
  • Takeshi Tsuji
  • Masao Sorai

Key publication venues where their work has appeared include:

  • Polymer Journal
  • Greenhouse Gases Science and Technology
  • ACS Applied Materials & Interfaces
  • Advanced Materials Interfaces
  • Seikei-Kakou

Best Publications

  • ASSEMBLY OF MULTICOMPONENT PROTEIN FILMS BY MEANS OF ELECTROSTATIC LAYER-BY-LAYER ADSORPTION

    Yuri Lvov;Katsuhiko Ariga;Izumi Ichinose;Toyoki Kunitake

  • Synthetic Bilayer Membranes: Molecular Design, Self‐Organization, and Application

    Toyoki Kunitake

  • Facile In Situ Synthesis of Noble Metal Nanoparticles in Porous Cellulose Fibers

    Junhui He;Toyoki Kunitake;Aiko Nakao

  • A totally synthetic bilayer membrane

    Toyoki Kunitake;Yoshio Okahata

  • Assembling Alternate Dye−Polyion Molecular Films by Electrostatic Layer-by-Layer Adsorption

    Katsuhiko Ariga;Yuri Lvov;Toyoki Kunitake

  • Alternate Assembly of Ordered Multilayers of SiO2 and Other Nanoparticles and Polyions

    Yuri Lvov;Katsuhiko Ariga;Mitsuhiko Onda;Izumi Ichinose

  • Molecular Recognition at Air−Water and Related Interfaces: Complementary Hydrogen Bonding and Multisite Interaction

    Katsuhiko Ariga;Toyoki Kunitake

  • OPTICAL MICROSCOPIC STUDY OF HELICAL SUPERSTRUCTURES OF CHIRAL BILAYER MEMBRANES

    N. Nakashima;S. Asakuma;T. Kunitake

  • FORMATION OF STABLE BILAYER ASSEMBLIES IN WATER FROM SINGLE-CHAIN AMPHIPHILES. RELATIONSHIP BETWEEN THE AMPHIPHILE STRUCTURE AND THE AGGREGATE MORPHOLOGY

    T. Kunitake;Y. Okahata;M. Shimomura;S. Yasunami

  • Nano-Precision Replication of Natural Cellulosic Substances by Metal Oxides

    Jianguo Huang;Toyoki Kunitake

  • Characterization of Polyelectrolyte-Protein Multilayer Films by Atomic Force Microscopy, Scanning Electron Microscopy, and Fourier Transform Infrared Reflection-Absorption Spectroscopy.

    Frank Caruso;D. Neil Furlong;Katsuhiko Ariga;and Izumi Ichinose

  • Formation of Ultrathin Multilayer and Hydrated Gel from Montmorillonite and Linear Polycations.

    Yuri Lvov;Katsuhiko Ariga;and Izumi Ichinose;Toyoki Kunitake

  • Robust free-standing nanomembranes of organic/inorganic interpenetrating networks

    Richard Vendamme;Shin Ya Onoue;Aiko Nakao;Toyoki Kunitake

  • A careful examination of the adsorption step in the alternate layer-by-layer assembly of linear polyanion and polycation

    Yuri Lvov;Katsuhiko Ariga;Mitsuhiko Onda;Izumi Ichinose

  • A Surface Sol−Gel Process of TiO2 and Other Metal Oxide Films with Molecular Precision

    Izumi Ichinose;Hiroyuki Senzu;Toyoki Kunitake

  • ORIENTATION AND SPECTRAL CHARACTERISTICS OF THE AZOBENZENE CHROMOPHORE IN THE AMMONIUM BILAYER ASSEMBLY.

    Masatsugu Shimomura;R. Ando;T. Kunitake

  • Sequential actions of glucose oxidase and peroxidase in molecular films assembled by layer‐by‐layer alternate adsorption

    Mitsuhiko Onda;Yuri Lvov;Katsuhiko Ariga;Toyoki Kunitake

  • Nanotubular SnO2 Templated by Cellulose Fibers: Synthesis and Gas Sensing

    J. Huang;N. Matsunaga;K. Shimanoe;N. Yamazoe

  • Molecular Recognition of Nucleotides by the Guanidinium Unit at the Surface of Aqueous Micelles and Bilayers. A Comparison of Microscopic and Macroscopic Interfaces.

    Mitsuhiko Onda;Kanami Yoshihara;Hiroshi Koyano;Katsuhiko Ariga

  • Molecular recognition of mono- and di-saccharides by phenylboronic acids in solvent extraction and as a monolayer

    Seiji Shinkai;Kazuhiko Tsukagoshi;Yuichi Ishikawa;Toyoki Kunitake

Frequent Co-Authors

Seiji Shinkai
Seiji Shinkai Kyushu University
Nobuo Kimizuka
Nobuo Kimizuka Kyushu University
Katsuhiko Ariga
Katsuhiko Ariga National Institute for Materials Science
Yoshio Okahata
Yoshio Okahata Tokyo Institute of Technology
Naotoshi Nakashima
Naotoshi Nakashima Kyushu University
Tisato Kajiyama
Tisato Kajiyama Kyushu University
Masatsugu Shimomura
Masatsugu Shimomura Tohoku University
Yuri Lvov
Yuri Lvov Louisiana Tech University
Junhui He
Junhui He Chinese Academy of Sciences
Hirotaka Ihara
Hirotaka Ihara Kumamoto University

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