World's Best Scientists 2026 revealed!
Katsuo Kumagai

Katsuo Kumagai

D-Index & Metrics

Immunology

D-Index
45
Citations
8141
World Ranking
4697
National Ranking
178

Katsuo Kumagai 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 Katsuo Kumagai 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: 162 publications — 21st percentile

21% of scientists in this discipline score the same or lower.

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

Katsuo Kumagai 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 Katsuo Kumagai 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: 45 D-Index — 6th percentile

6% of scientists in this discipline score the same or lower.

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

Overview

Katsuo Kumagai is affiliated with Tohoku University in Japan. Their academic activities are connected to this institution, which is known for its research and higher education contributions.

No recent papers authored by Katsuo Kumagai have been documented in the available data. Similarly, no frequent co-authors have been recorded.

There is no information on frequent publication venues associated with their work.

No book publications have been listed under their name, and detailed data regarding their main fields of study, subfields, and main topics of work are also not available.

There are no recorded awards granted to Katsuo Kumagai according to the current data.

Best Publications

  • Pretreatment of plastic petri dishes with fetal calf serum. A simple method for macrophage isolation

    Katsuo Kumagai;Kyogo Itoh;Shuji Hinuma;Masato Tada

  • Neutrophil proteinase 3-mediated induction of bioactive IL-18 secretion by human oral epithelial cells.

    Shunji Sugawara;Akiko Uehara;Tomonori Nochi;Takahiro Yamaguchi

  • Studies on the bioperiodicity of the immune response. I. Circadian rhythms of human T, B, and K cell traffic in the peripheral blood

    T Abo;T Kawate;K Itoh;K Kumagai

  • Studies of surface immunoglobulins on human B lymphocytes. I. Dissociation of cell-bound immunoglobulins with acid pH or at 37 degrees C.

    Katsuo Kumagai;Toru Abo;Tsuyoshi Sekizawa;Mutsuo Sasaki

  • Cytotoxic NK1.1 Ag+ alpha beta T cells with intermediate TCR induced in the liver of mice by IL-12.

    W Hashimoto;K Takeda;R Anzai;K Ogasawara

  • Immunologic Aspects of the Nonobese Diabetic (NOD) Mouse: Abnormalities of Cellular Immunity

    Shigeki Kataoka;Jo Satoh;Hiroshi Fujiya;Takayoshi Toyota

  • Natural killer (NK) cells as a responder to interleukin 2 (IL 2). I. Proliferative response and establishment of cloned cells.

    R Suzuki;K Handa;K Itoh;K Kumagai

  • Generation of activated killer (AK) cells by recombinant interleukin 2 (rIL 2) in collaboration with interferon-gamma (IFN-gamma).

    K Itoh;K Shiiba;Y Shimizu;R Suzuki

  • Liver NK1.1+ CD4+ alpha beta T cells activated by IL-12 as a major effector in inhibition of experimental tumor metastasis.

    K Takeda;S Seki;K Ogasawara;R Anzai

  • Estrogen administration activates extrathymic T cell differentiation in the liver.

    R Okuyama;T Abo;S Seki;T Ohteki

  • A simple method to eliminate the antigenicity of surface class I MHC molecules from the membrane of viable cells by acid treatment at pH 3

    Shunji Sugawara;Toru Abo;Katsuo Kumagai

  • Involvement of NK1+ T cells and their IFN-gamma production in the generalized Shwartzman reaction.

    Kouetsu Ogasawara;Kazuyoshi Takeda;Wataru Hashimoto;Masayuki Satoh

  • Studies of murine large granular lymphocytes. I. Identification as effector cells in NK and K cytotoxicities.

    K Kumagai;K Itoh;R Suzuki;S Hinuma

  • LPS induces NK1.1+ alpha beta T cells with potent cytotoxicity in the liver of mice via production of IL-12 from Kupffer cells.

    Motoyoshi Takahashi;Kouetsu Ogasawara;Kazuyoshi Takeda;Wataru Hashimoto

  • Cytotoxic gammadelta or alphabeta T cells with a natural killer cell marker, CD56, induced from human peripheral blood lymphocytes by a combination of IL-12 and IL-2.

    Masayuki Satoh;Shuhji Seki;Wataru Hashimoto;Kouetsu Ogasawara

  • Studies of the bioperiodicity of the immune response. II. Co-variations of murine T and B cells and a role of corticosteroid.

    T Kawate;T Abo;S Hinuma;K Kumagai

  • Suppressive effect of human natural killer cells on pokeweed mitogen-induced B cell differentiation.

    Unknown

  • Production of colony-stimulating factor by tumor cells and the factor-mediated induction of suppressor cells.

    Y Tsuchiya;M Igarashi;R Suzuki;K Kumagai

  • Aminoalkylbisphosphonates, potent inhibitors of bone resorption, induce a prolonged stimulation of histamine synthesis and increase macrophages, granulocytes, and osteoclasts in vivo

    Yasuo Endo;Masanori Nakamura;Takashi Kikuchi;Hisashi Shinoda

  • Studies of murine large granular lymphocytes. II. Tissue, strain, and age distributions of lgl and lal.

    K Itoh;R Suzuki;Y Umezu;K Hanaumi

  • Identification of activated T cell receptor gamma delta lymphocytes in the liver of tumor-bearing hosts.

    S Seki;T Abo;T Masuda;T Ohteki

Frequent Co-Authors

Shunji Sugawara
Shunji Sugawara Tohoku University
Nakao Ishida
Nakao Ishida Tohoku University
Toru Abo
Toru Abo Niigata University
Ryuji Suzuki
Ryuji Suzuki National Institutes of Health
Kouetsu Ogasawara
Kouetsu Ogasawara Tohoku University
Haruhiko Takada
Haruhiko Takada Tohoku University
Kazuyoshi Takeda
Kazuyoshi Takeda Juntendo University
Setsuya Aiba
Setsuya Aiba Tohoku University
Hiroshi Maeda
Hiroshi Maeda Kumamoto University
Toshiaki Ohteki
Toshiaki Ohteki Tokyo Medical and Dental University

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