World's Best Scientists 2026 revealed!
Ikuo Takashima

Ikuo Takashima

D-Index & Metrics

Immunology

D-Index
46
Citations
6617
World Ranking
4646
National Ranking
177

Ikuo Takashima publication distribution in Immunology in 2026

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

62–71 publications: 9 scientists 72–81 publications: 23 scientists 82–91 publications: 40 scientists 92–101 publications: 72 scientists 102–111 publications: 86 scientists 112–121 publications: 108 scientists 122–131 publications: 150 scientists 132–141 publications: 160 scientists 142–151 publications: 159 scientists 152–161 publications: 189 scientists 162–171 publications: 166 scientists 172–181 publications: 181 scientists 182–191 publications: 188 scientists 192–201 publications: 187 scientists 202–211 publications: 178 scientists 212–221 publications: 158 scientists 222–231 publications: 168 scientists 232–241 publications: 159 scientists 242–251 publications: 160 scientists 252–261 publications: 148 scientists 262–271 publications: 116 scientists 272–281 publications: 125 scientists 282–291 publications: 115 scientists 292–301 publications: 111 scientists 302–311 publications: 95 scientists 312–321 publications: 97 scientists 322–331 publications: 97 scientists 332–341 publications: 99 scientists 342–351 publications: 96 scientists 352–361 publications: 68 scientists 362–371 publications: 76 scientists 372–381 publications: 71 scientists 382–391 publications: 71 scientists 392–401 publications: 62 scientists 402–411 publications: 54 scientists 412–421 publications: 41 scientists 422–431 publications: 63 scientists 432–441 publications: 53 scientists 442–451 publications: 31 scientists 452–461 publications: 42 scientists 462–471 publications: 40 scientists 472–481 publications: 29 scientists 482–491 publications: 34 scientists 492–501 publications: 30 scientists 502–511 publications: 23 scientists 512–521 publications: 41 scientists 522–531 publications: 29 scientists 532–541 publications: 28 scientists 542–551 publications: 16 scientists 552–561 publications: 18 scientists 562–571 publications: 18 scientists 572–581 publications: 17 scientists 582–591 publications: 17 scientists 592–601 publications: 17 scientists 602–611 publications: 19 scientists 612–621 publications: 13 scientists 622–631 publications: 12 scientists 632–641 publications: 11 scientists 642–651 publications: 16 scientists 652–661 publications: 9 scientists 662–671 publications: 5 scientists 672–681 publications: 13 scientists 682–691 publications: 12 scientists 692–701 publications: 6 scientists 702–711 publications: 6 scientists 712–721 publications: 9 scientists 722–731 publications: 9 scientists 732–741 publications: 6 scientists 742–751 publications: 11 scientists 752–761 publications: 10 scientists 762–771 publications: 7 scientists 772–781 publications: 12 scientists 782–791 publications: 7 scientists 792–801 publications: 5 scientists 802–806 publications: 1 scientists 807+ publications: 100 scientists
62 publications 807+

This scientist: 208 publications — 37th percentile

37% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 807 publications or more.

Ikuo Takashima D-index placement in Immunology in 2026

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

40–41 D-Index: 28 scientists 42–43 D-Index: 91 scientists 44–45 D-Index: 157 scientists 46–47 D-Index: 192 scientists 48–49 D-Index: 175 scientists 50–51 D-Index: 188 scientists 52–53 D-Index: 177 scientists 54–55 D-Index: 155 scientists 56–57 D-Index: 194 scientists 58–59 D-Index: 201 scientists 60–61 D-Index: 197 scientists 62–63 D-Index: 201 scientists 64–65 D-Index: 173 scientists 66–67 D-Index: 167 scientists 68–69 D-Index: 172 scientists 70–71 D-Index: 199 scientists 72–73 D-Index: 184 scientists 74–75 D-Index: 133 scientists 76–77 D-Index: 162 scientists 78–79 D-Index: 127 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 125 scientists 84–85 D-Index: 121 scientists 86–87 D-Index: 102 scientists 88–89 D-Index: 96 scientists 90–91 D-Index: 75 scientists 92–93 D-Index: 72 scientists 94–95 D-Index: 74 scientists 96–97 D-Index: 66 scientists 98–99 D-Index: 68 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 60 scientists 104–105 D-Index: 54 scientists 106–107 D-Index: 36 scientists 108–109 D-Index: 23 scientists 110–111 D-Index: 52 scientists 112–113 D-Index: 41 scientists 114–115 D-Index: 34 scientists 116–117 D-Index: 25 scientists 118–119 D-Index: 28 scientists 120–121 D-Index: 11 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 19 scientists 128–129 D-Index: 20 scientists 130–131 D-Index: 16 scientists 132–133 D-Index: 17 scientists 134–135 D-Index: 14 scientists 136–137 D-Index: 15 scientists 138–139 D-Index: 9 scientists 140–141 D-Index: 11 scientists 142–143 D-Index: 9 scientists 144–145 D-Index: 9 scientists 146–147 D-Index: 7 scientists 148–149 D-Index: 7 scientists 150–151 D-Index: 7 scientists 152–153 D-Index: 5 scientists 154–155 D-Index: 8 scientists 156 D-Index: 6 scientists 157+ D-Index: 96 scientists
40 D-Index 157+

This scientist: 46 D-Index — 8th percentile

8% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 157 D-Index or more.

Overview

Ikuo Takashima is affiliated with Hokkaido University in Japan. The available data provides limited information about their academic profile, but it establishes a clear connection to this institution.

There are no recorded recent papers or publications with detailed titles, years, or venues associated with Ikuo Takashima in the provided data. Similarly, no frequent co-authors, publication venues, book publications, or specific fields and subfields of study have been listed.

No main topics of research or work have been documented, and there is no information on awards or recognitions. The data also confirms that Ikuo Takashima is not deceased. This absence of detailed research outputs or descriptors suggests either a limited digital footprint or that their work is not included in the current dataset.

Best Publications

  • Inactivation of SARS Coronavirus by Means of Povidone-Iodine, Physical Conditions and Chemical Reagents

    Hiroaki Kariwa;Nobuhiro Fujii;Ikuo Takashima

  • Viral envelope protein glycosylation is a molecular determinant of the neuroinvasiveness of the New York strain of West Nile virus

    Kazuya Shirato;Hirotsugu Miyoshi;Akiko Goto;Yoshihiko Ako

  • A case of tick-borne encephalitis in Japan and isolation of the the virus.

    Ikuo Takashima;Kouichi Morita;Misako Chiba;Daisuke Hayasaka

  • Cytokine regulation in SARS coronavirus infection compared to other respiratory virus infections.

    Tamaki Okabayashi;Hiroaki Kariwa;Shin Ichi Yokota;Shigeo Iki

  • Horizontal and vertical transmission of Japanese encephalitis virus by Aedes japonicus (Diptera: Culicidae).

    Ikuo Takashima;Leon Rosen

  • Distribution and characterization of tick-borne encephalitis viruses from Siberia and far-eastern Asia

    Daisuke Hayasaka;Leonid Ivanov;Galina N. Leonova;Akiko Goto

  • Mortality following peripheral infection with tick-borne encephalitis virus results from a combination of central nervous system pathology, systemic inflammatory and stress responses.

    Daisuke Hayasaka;Noriyo Nagata;Yoshiki Fujii;Hideki Hasegawa

  • Different chemokine expression in lethal and non-lethal murine west nile virus infection

    Kazuya Shirato;Takashi Kimura;Tetsuya Mizutani;Hiroaki Kariwa

  • Ecological studies of Japanese encephalitis virus in Hokkaido: interepidemic outbreaks of swine abortion and evidence for the virus to overwinter locally.

    Ikuo Takashima;Takutoshi Watanabe;Naoto Ouchi;Nobuo Hashimoto

  • Soochong virus: an antigenically and genetically distinct hantavirus isolated from Apodemus peninsulae in Korea.

    Luck Ju Baek;Hiroaki Kariwa;Kumari Lokugamage;Kumiko Yoshimatsu

  • Phylogenetic and virulence analysis of tick-borne encephalitis viruses from Japan and far-eastern Russia

    Daisuke Hayasaka;Yoshiyuki Suzuki;Hiroaki Kariwa;Leonid Ivanov

  • In vitro antiviral activity of lactoferrin and ribavirin upon hantavirus.

    M. E. Murphy;H. Kariwa;T. Mizutani;K. Yoshimatsu

  • Protective role of antigenic sites on the envelope protein of Hantaan virus defined by monoclonal antibodies

    J. Arikawa;J. S. Yao;K. Yoshimatsu;I. Takashima

  • Truncated Hantavirus Nucleocapsid Proteins for Serotyping Hantaan, Seoul, and Dobrava Hantavirus Infections

    Koichi Araki;Kumiko Yoshimatsu;Michiko Ogino;Hideki Ebihara

  • Epizootiologic Survey for Babesia microti among Small Wild Mammals in Northeastern Eurasia and a Geographic Deversity in the β-Tubulin Gene Sequences

    Aya Zamoto;Masayoshi Tsuji;Qiang Wei;Shin-Hyeong Cho

  • Pathogenicity of Hantaan Virus in Newborn Mice: Genetic Reassortant Study Demonstrating that a Single Amino Acid Change in Glycoprotein G1 Is Related to Virulence

    Hideki Ebihara;Kumiko Yoshimatsu;Michiko Ogino;Koichi Araki

  • Evidence for the existence of Puumula-related virus among Clethrionomys rufocanus in Hokkaido, Japan

    Kariwa H;Yoshizumi S;Arikawa J;Yoshimatsu K

  • Novel antiviral activity of bromocriptine against dengue virus replication.

    Fumihiro Kato;Yuki Ishida;Shinya Oishi;Nobutaka Fujii

  • Genetic diversities of hantaviruses among rodents in Hokkaido, Japan and Far East Russia.

    Hiroaki Kariwa;Kumiko Yoshimatsu;Junko Sawabe;Eiichi Yokota

  • Role of the N-linked glycans of the prM and E envelope proteins in tick-borne encephalitis virus particle secretion

    Akiko Goto;Kentarou Yoshii;Mayumi Obara;Tomotaka Ueki

Frequent Co-Authors

Hiroaki Kariwa
Hiroaki Kariwa Hokkaido University
Jiro Arikawa
Jiro Arikawa Hokkaido University
Kumiko Yoshimatsu
Kumiko Yoshimatsu Hokkaido University
Tetsuya Mizutani
Tetsuya Mizutani Tokyo University of Agriculture and Technology
Noriyo Nagata
Noriyo Nagata National Institutes of Health
Ichiro Kurane
Ichiro Kurane National Institutes of Health
Koichi Yamanishi
Koichi Yamanishi Osaka University
Hideki Ebihara
Hideki Ebihara Mayo Clinic
Hideki Hasegawa
Hideki Hasegawa National Institutes of Health
Michael R. Holbrook
Michael R. Holbrook National Institutes of Health

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