World's Best Scientists 2026 revealed!
Masao Hattori

Masao Hattori

D-Index & Metrics

Biology and Biochemistry

D-Index
77
Citations
18672
World Ranking
4845
National Ranking
317

Chemistry

D-Index
75
Citations
17482
World Ranking
4521
National Ranking
255

Masao Hattori 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 Masao Hattori sits on this spectrum.

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 publications 1,295+

This scientist: 369 publications — 76th percentile

76% of scientists in this discipline score the same or lower.

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

Masao Hattori 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 Masao Hattori sits on this spectrum.

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 D-Index 159+

This scientist: 75 D-Index — 76th percentile

76% of scientists in this discipline score the same or lower.

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

Overview

Masao Hattori is affiliated with the University of Toyama in Japan and has an extensive research portfolio focused primarily on medical and biomedical fields. Their work spans disciplines within Medicine as well as Biochemistry, Genetics and Molecular Biology.

The scientist's main field of study is Medicine, with 162 publications. Within this broad domain, their research delves into several significant subfields including Oncology (75 publications), Pulmonary and Respiratory Medicine (40 publications), Cancer Research (35 publications), Genetics (14 publications), and Surgery (9 publications).

Major research topics addressed by Masao Hattori include:

  • Advanced Breast Cancer Therapies
  • HER2/EGFR in Cancer Research
  • Breast Cancer Treatment Studies
  • Cancer Treatment and Pharmacology
  • Chronic Lymphocytic Leukemia Research
  • Cancer Genomics and Diagnostics
  • Breast Implant and Reconstruction

Frequent publication venues reflect the focus on cancer and clinical oncology, featuring:

  • Breast Cancer
  • Cancer Research
  • Annals of Oncology
  • Japanese Journal of Clinical Oncology
  • Journal of Clinical Oncology

Prominent recent papers by Masao Hattori include:

  • The frequency of low HER2 expression in breast cancer and a comparison of prognosis between patients with HER2-low and HER2-negative breast cancer by HR status, 2021, Breast Cancer
  • The Japanese Breast Cancer Society Clinical Practice Guidelines for systemic treatment of breast cancer, 2018 edition, 2020, Breast Cancer
  • Datopotamab Deruxtecan Versus Chemotherapy in Previously Treated Inoperable/Metastatic Hormone Receptor-Positive Human Epidermal Growth Factor Receptor 2-Negative Breast Cancer: Primary Results From TROPION-Breast01, 2024, Journal of Clinical Oncology
  • The Japanese Breast Cancer Society Clinical Practice Guidelines for systemic treatment of breast cancer, 2022 edition, 2023, Breast Cancer
  • LBA11 Datopotamab deruxtecan (Dato-DXd) vs chemotherapy in previously-treated inoperable or metastatic hormone receptor-positive, HER2-negative (HR+/HER2-) breast cancer (BC): Primary results from the randomised phase III TROPION-Breast01 trial, 2023, Annals of Oncology

Masao Hattori regularly collaborates with several coauthors who contribute significantly to their research efforts. Frequent collaborators include Hiroji Iwata, Haruru Kotani, Akiyo Yoshimura, Masataka Sawaki, and Ayumi Kataoka.

Best Publications

  • Anti-HIV-1 and anti-HIV-1-protease substances from Ganoderma Lucidum

    Sahar El-Mekkawy;Meselhy R. Meselhy;Norio Nakamura;Yasuhiro Tezuka

  • Inhibitory effects of sudanese medicinal plant extracts on hepatitis C virus (HCV) protease.

    Ghazi Hussein;Hirotsugu Miyashiro;Norio Nakamura;Masao Hattori

  • Pharmacokinetics of Berberine and Its Main Metabolites in Conventional and Pseudo Germ-Free Rats Determined by Liquid Chromatography/Ion Trap Mass Spectrometry

    Feng Zuo;Norio Nakamura;Teruaki Akao;Masao Hattori

  • The cytotoxic activity of ursolic acid derivatives

    Chao-Mei Ma;Shao-Qing Cai;Jing-Rong Cui;Rui-Qing Wang

  • Mechanism of antihepatotoxic activity of glycyrrhizin. I: Effect on free radical generation and lipid peroxidation.

    Yoshinobu Kiso;Masahiro Tohkin;Hiroshi Hikino;Masao Hattori

  • Biotransformation of pinoresinol diglucoside to mammalian lignans by human intestinal microflora, and isolation of Enterococcus faecalis strain PDG-1 responsible for the transformation of (+)-pinoresinol to (+)-lariciresinol.

    Li-Hua Xie;Teruaki Akao;Kenjiro Hamasaki;Takeshi Deyama

  • Inhibitory effects of Egyptian folk medicines on human immunodeficiency virus (HIV) reverse transcriptase

    Sahar El-Mekkawy;Meselhy R. Meselhy;Ines Tomoco Kusumoto;Shigetoshi Kadota

  • Screening of various plant extracts used in ayurvedic medicine for inhibitory effects on human immunodeficiency virus type 1 (HIV-1) protease

    Ines Tomoco Kusumoto;Takeshi Nakabayashi;Hiroaki Kida;Hirotsugu Miyashiro

  • Effect of tea polyphenols on glucan synthesis by glucosyltransferase from Streptococcus mutans

    Masao Hattori;Ines Tomoco Kusumoto;Tsuneo Namba;Tadashi Ishigami

  • A search for anti-viral properties in Panamanian medicinal plants. The effects on HIV and its essential enzymes.

    I.T Matsuse;Y.A Lim;M Hattori;M Correa

  • Efficacy of Thai medicinal plant extracts against herpes simplex virus type 1 infection in vitro and in vivo.

    Vimolmas Lipipun;Masahiko Kurokawa;Rutt Suttisri;Pagorn Taweechotipatr

  • New Triterpene Aldehydes, Lucialdehydes A—C, from Ganoderma lucidum and Their Cytotoxicity against Murine and Human Tumor Cells

    Jiang-Jing Gao;Byung-Sun Min;Eun-Mi Ahn;Norio Nakamura

  • Screening of Indonesian plant extracts for anti‐human immunodeficiency virus—type 1 (HIV‐1) activity

    Toru Otake;Haruyo Mori;Motoko Morimoto;Noboru Ueba

  • Five new maleic and succinic acid derivatives from the mycelium of Antrodia camphorata and their cytotoxic effects on LLC tumor cell line.

    Norio Nakamura;Akiko Hirakawa;Jiang-Jing Gao;Hiroko Kakuda

  • Anti-HIV-1 phorbol esters from the seeds of Croton tiglium.

    Sahar El-Mekkawy;Meselhy R. Meselhy;Norio Nakamura;Masao Hattori

  • Anti-herpes simplex virus (HSV-1) activity of oxyresveratrol derived from Thai medicinal plant: mechanism of action and therapeutic efficacy on cutaneous HSV-1 infection in mice.

    Taksina Chuanasa;Jurairatana Phromjai;Vimolmas Lipipun;Kittisak Likhitwitayawuid

  • Anti-inflammatory effects of emodin from ventilago leiocarpa.

    Cheng-Hsiung Chang;Chun-Ching Lin;Jenq-Jer Yang;Tsuneo Namba

  • Metabolism of glycyrrhizin by human intestinal flora.

    Masao Hattori;Tatsuya Sakamoto;Kyoichi Kobashi;Tsuneo Namba

  • A modified and convenient method for assessing tumor cell invasion and migration and its application to screening for inhibitors

    Ken-ichi Saito;Tohru Oku;Naomi Ata;Hirotsugu Miyashiro

  • Sodium tanshinone IIA sulfonate derived from Danshen (Salvia miltiorrhiza) attenuates hypertrophy induced by angiotensin II in cultured neonatal rat cardiac cells.

    Kyoko Takahashi;Xinshou Ouyang;Katsuko Komatsu;Norio Nakamura

Frequent Co-Authors

Tsuneo Namba
Tsuneo Namba University of Toyama
Takako Yokozawa
Takako Yokozawa University of Toyama
Byung Sun Min
Byung Sun Min Catholic University of Daegu
Shigetoshi Kadota
Shigetoshi Kadota University of Toyama
Kunitada Shimotohno
Kunitada Shimotohno National Center For Global Health and Medicine
Kimiyasu Shiraki
Kimiyasu Shiraki University of Toyama
KiHwan Bae
KiHwan Bae Chungnam National University
Yasuhiro Tezuka
Yasuhiro Tezuka Hokuriku University
Young Ho Kim
Young Ho Kim Kyungpook National University
Jae Sue Choi
Jae Sue Choi Pukyong National University

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