World's Best Scientists 2026 revealed!
Hiroyuki Nakazawa

Hiroyuki Nakazawa

D-Index & Metrics

Chemistry

D-Index
74
Citations
17064
World Ranking
4793
National Ranking
273

Hiroyuki Nakazawa 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 Hiroyuki Nakazawa 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: 441 publications — 84th percentile

84% of scientists in this discipline score the same or lower.

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

Hiroyuki Nakazawa 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 Hiroyuki Nakazawa 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: 74 D-Index — 75th percentile

75% of scientists in this discipline score the same or lower.

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

Overview

Hiroyuki Nakazawa is affiliated with Hoshi University in Japan and conducts research primarily in the field of Medicine. Their work spans several specialized subfields, including Surgery, Radiology, Nuclear Medicine and Imaging, Biomedical Engineering, Rehabilitation, and Public Health, Environmental and Occupational Health.

The research topics explored by Nakazawa cover a range of areas related to medical imaging and clinical practices. These include:

  • Advanced MRI Techniques and Applications
  • Photoacoustic and Ultrasonic Imaging
  • Medical Imaging Techniques and Applications
  • Stroke Rehabilitation and Recovery
  • Clinical Practice Guidelines Implementation
  • Healthcare Systems and Practices
  • Total Knee Arthroplasty Outcomes

Nakazawa has published articles in the following venues, reflecting a focus on medical imaging and rehabilitation sciences:

  • Cureus
  • Rigakuryoho Kagaku
  • Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition

Recent publications include:

  • "Enhancement of Image Quality in Low-Field Knee MR Imaging Using Deep Learning," 2024, Cureus
  • "Report on the Practice of an In-hospital Collaboration Conference between Recovery Rehabilitation and Home-visit Rehabilitation," 2020, Rigakuryoho Kagaku
  • "A Fat-suppression, Image-subtraction Method Using Deep Learning for the Detection of Knee Abnormalities on MRI," 2024, Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition
  • "Diagnostic Utility of Fractional Anisotropy and the Apparent Diffusion Coefficient in the Median Nerve: A Nerve Conduction Velocity-Stratified Evaluation Using 3T MRI," 2025, Cureus

Collaborative efforts are an important aspect of Nakazawa's research, with frequent co-authors including:

  • Hitoshi Terada
  • Tsutomu Inaoka
  • Akihiko Wada
  • Masayuki Sugeta
  • Masaru Sonoda

This network of co-authors reflects a multidisciplinary approach across clinical and imaging sciences.

Best Publications

  • Perfluorooctane sulfonate (PFOS) and related perfluorinated compounds in human maternal and cord blood samples: assessment of PFOS exposure in a susceptible population during pregnancy.

    Koichi Inoue;Fumio Okada;Rie Ito;Shizue Kato

  • Decreased Serum Free Testosterone in Workers Exposed to High Levels of Di-n-butyl Phthalate (DBP) and Di-2-ethylhexyl Phthalate (DEHP): A Cross-Sectional Study in China

    Guowei Pan;Tomoyuki Hanaoka;Mariko Yoshimura;Shujuan Zhang

  • Correlations between Prenatal Exposure to Perfluorinated Chemicals and Reduced Fetal Growth

    Noriaki Washino;Yasuaki Saijo;Seiko Sasaki;Shizue Kato

  • Stability of microcystins from cyanobacteria--II. effect of UV light on decomposition and isomerization

    Kiyomi Tsuji;Tomohiko Watanuki;Fumio Kondo;Mariyo F. Watanabe

  • Novel stir bar sorptive extraction methods for environmental and biomedical analysis

    Migaku Kawaguchi;Rie Ito;Koichi Saito;Hiroyuki Nakazawa

  • Antioxidative Effect of Maillard Reaction Products Using Glucose-Glycine Model System

    Yoshihiro Yoshimura;Tsutomu Iijima;Takaho Watanabe;Hiroyuki Nakazawa

  • Determination of bisphenol A in human serum by high-performance liquid chromatography with multi-electrode electrochemical detection.

    Koichi Inoue;Kayoko Kato;Yoshihiro Yoshimura;Tsunehisa Makino

  • Determination of bisphenol A in canned vegetables and fruit by high performance liquid chromatography.

    Terumitsu Yoshida;Masakazu Horie;Youji Hoshino;Hiroyuki Nakazawa

  • Determination of bisphenol A in river water and body fluid samples by stir bar sorptive extraction with in situ derivatization and thermal desorption-gas chromatography–mass spectrometry

    Migaku Kawaguchi;Koichi Inoue;Mariko Yoshimura;Rie Ito

  • Polybrominated diphenyl ethers in human serum and sperm quality.

    Kazuhiko Akutsu;S. Takatori;S. Nozawa;M. Yoshiike

  • Measurement of bisphenol A levels in human blood serum and ascitic fluid by HPLC using a fluorescent labeling reagent

    Naotaka Kuroda;Yumi Kinoshita;Yen Sun;Mitsuhiro Wada

  • Stability of microcystins from cyanobacteria--IV. Effect of chlorination on decomposition.

    Kiyomi Tsuji;Tomohiko Watanuki;Fumio Kondo;Mariyo F. Watanabe

  • Effects of flavonoid phytochemicals on cortisol production and on activities of steroidogenic enzymes in human adrenocortical H295R cells.

    Shuji Ohno;Satoshi Shinoda;Satoshi Toyoshima;Hiroyuki Nakazawa

  • Development of a accelerated solvent extraction and gel permeation chromatography analytical method for measuring persistent organohalogen compounds in adipose and organ tissue analysis.

    Koichi Saito;Andreas Sjödin;Courtney D. Sandau;Mark D. Davis

  • Evaluation and analysis of exposure levels of di(2-ethylhexyl) phthalate from blood bags.

    Koichi Inoue;Migaku Kawaguchi;Retsuji Yamanaka;Tae Higuchi

  • Identification of phenolic compound in manuka honey as specific superoxide anion radical scavenger using electron spin resonance (ESR) and liquid chromatography with coulometric array detection

    Koichi Inoue;Shiho Murayama;Fumie Seshimo;Kazue Takeba

  • Simultaneous determination of residual tetracyclines in foods by high-performance liquid chromatography with atmospheric pressure chemical ionization tandem mass spectrometry.

    Hiroyuki Nakazawa;Shigeru Ino;Kayoko Kato;Takaho Watanabe

  • A new strategy for ionization enhancement by derivatization for mass spectrometry.

    Yusuke Iwasaki;Yuki Nakano;Keisuke Mochizuki;Maki Nomoto

  • Prenatal exposure to perfluorinated chemicals and relationship with allergies and infectious diseases in infants

    Emiko Okada;Seiko Sasaki;Yasuaki Saijo;Noriaki Washino

  • Molecularly imprinted solid phase extraction using stable isotope labeled compounds as template and liquid chromatography–mass spectrometry for trace analysis of bisphenol A in water sample

    Migaku Kawaguchi;Yoshio Hayatsu;Hisao Nakata;Yumiko Ishii

  • Chromatographic and mass spectrometric analysis of glutathione in biological samples.

    Yusuke Iwasaki;Yusuke Saito;Yuki Nakano;Keisuke Mochizuki

Frequent Co-Authors

Ken-ichi Harada
Ken-ichi Harada Meijo University
Makoto Suzuki
Makoto Suzuki Meijo University
Yoichiro Ito
Yoichiro Ito National Institutes of Health
Kazuichi Hayakawa
Kazuichi Hayakawa Kanazawa University
Ken Takahashi
Ken Takahashi University of Sydney
Norihiro Sugino
Norihiro Sugino Yamaguchi University
Kenichiro Nakashima
Kenichiro Nakashima Nagasaki University
Tsutomu Suzuki
Tsutomu Suzuki University of Tokyo
Bruce D. Hammock
Bruce D. Hammock University of California, Davis

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