World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
55
Citations
8290
World Ranking
12396
National Ranking
931

Seiichi Nakahama 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 Seiichi Nakahama 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: 241 publications — 47th percentile

47% of scientists in this discipline score the same or lower.

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

Seiichi Nakahama 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 Seiichi Nakahama 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: 55 D-Index — 33rd percentile

33% of scientists in this discipline score the same or lower.

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

Overview

Seiichi Nakahama is affiliated with the Tokyo Institute of Technology in Japan. Their academic work is associated with this institution, contributing to the research environment at one of the notable technical universities in the region.

There is no specific data available concerning Seiichi Nakahama's recent scientific papers, which limits details on particular research outputs, publication venues, or citation impact. Likewise, there is no information on frequent co-authors or collaborative research partners.

No records are present regarding the scientist's frequent publication venues or academic journals where their work has been predominantly published. This absence makes it difficult to specify the primary platforms for disseminating their research findings.

No book publications have been identified under Seiichi Nakahama's name, so it cannot be confirmed whether they have contributed to academic or professional books.

There is no information available about the main fields or subfields of study related to their research, which means the exact areas of their scientific expertise cannot be detailed.

Similarly, no specific main topics of work have been recorded, leaving the thematic focus of their research unspecified.

There are no awards or honors listed for Seiichi Nakahama, so details about professional recognitions or distinctions are unavailable.

Best Publications

  • Asymmetric reduction of aromatic ketones with chiral alkoxy-amineborane complexes

    Akira Hirao;Shinichi Itsuno;Seiichi Nakahama;Noboru Yamazaki

  • New solid-phase catalysts for asymmetric synthesis: cross-linked polymers containing a chiral Schiff base-zinc complex

    Shinichi Itsuno;Yoshiki Sakurai;Koichi Ito;Toshihiro Maruyama

  • Polymerization of monomers containing functional silyl groups. 5. Synthesis of new porous membranes with functional groups

    Jae Suk Lee;Akira Hirao;Seiichi Nakahama

  • Asymmetric synthesis using chirally modified borohydrides. Part 3. Enantioselective reduction of ketones and oxime ethers with reagents prepared from borane and chiral amino alcohols

    Shinichi Itsuno;Michio Nakano;Koji Miyazaki;Hirofumi Masuda

  • Catalytic Behavior of Optically Active Amino Alcohol–Borane Complex in the Enantioselective Reduction of Acetophenone Oxime O-Alkyl Ethers

    Shinichi Itsuno;Yoshiki Sakurai;Koichi Ito;Akira Hirao

  • Kinetics of Chain Coupling at Melt Interfaces

    P. Guégan;Chris Macosko;T. Ishizone;A. Hirao

  • Asymmetric reduction of aromatic ketones with the reagent prepared from (S)-(–)-2-amino-3-methyl-1,1-diphenylbutan-1-ol and borane

    Shinichi Itsuno;Koichi Ito;Akira Hirao;Seiichi Nakahama

  • Polymerization of monomers containing functional groups protected by trialkylsilyl groups. 5. Synthesis of poly(2-hydroxyethyl methacrylate) with a narrow molecular weight distribution by means of anionic living polymerization

    Akira Hirao;Hideshige Kato;Kazuo Yamaguchi;Seiichi Nakahama

  • Asymmetric reduction of aliphatic ketones with the reagent prepared from (S)-(−)-2-amino-3-methyl-1,1-diphenylbutan-1-ol and borane

    Shinichi Itsuno;Koichi Ito;Akira Hirao;Seiichi Nakahama

  • Synthesis of polymers with amino end groups. 3. Reactions of anionic living polymers with α-halo-ι-aminoalkanes with a protected amino functionality

    Kenji Ueda;Akira Hirao;Seiichi Nakahama

  • Polymerization of monomers containing functional groups protected by trialkylsilyl groups, 4. Studies on anionic living polymerization of 4‐(tert‐butyldimethylsilyloxy)styrene

    Akira Hirao;Katsuhiko Takenaka;S. Packirisamy;Kazuo Yamaguchi

  • Synthesis of Side-Chain Liquid Crystalline Homopolymers and Block Copolymers with Well-Defined Structures by Living Anionic Polymerization and Their Thermotropic Phase Behavior

    Masayuki Yamada;Akira Hirao;Seiichi Nakahama;Tsukasa Iguchi

  • Polymerization of monomers containing functional silyl groups. 7. Porous membranes with controlled microstructures

    Jae Suk Lee;Akira Hirao;Seiichi Nakahama

  • Stereospecific anionic polymerization of N, N-dialkylacrylamides

    Motoyasu Kobayashi;Shunsuke Okuyama;Takashi Ishizone;Seiichi Nakahama

  • Crystallization Behavior and Crystal Orientation of Poly(ε-caprolactone) Homopolymers Confined in Nanocylinders: Effects of Nanocylinder Dimension

    Shintaro Nakagawa;Ken-ichi Kadena;Takashi Ishizone;Shuichi Nojima

  • Protection and polymerization of functional monomers, 23. Synthesis of well‐defined poly(2‐hydroxyethyl methacrylate) by means of anionic living polymerization of protected monomers

    Hideharu Mori;Osamu Wakisaka;Akira Hirao;Seiichi Nakahama

  • Synthesis and surface characterization of hydrophilic-hydrophobic block copolymers containing poly(2,3-dihydroxypropyl methacrylate)

    Hideharu Mori;Akira Hirao;Seiichi Nakahama;Kazuhisa Senshu

  • Asymmetric reduction of aliphatic ketones with the reagent prepared from (S)-(−)-2-amino-3-methyl-1,1-diphenylbutan-1-ol and borane

    Unknown

  • PROTECTION AND POLYMERIZATION OF FUNCTIONAL MONOMERS: ANIONIC LIVING POLYMERIZATION OF PROTECTED MONOMERS

    Unknown

  • Anionic polymerizations of perfluoroalkyl methacrylates and synthesis of well-defined ABC triblock copolymers of methacrylates containing hydrophilic, hydrophobic, and perfluoroalkyl groups

    Takashi Ishizone;Kenji Sugiyama;Yasunori Sakano;Hideharu Mori

  • Protection and polymerization of functional monomers. 21. Anionic living polymerization of (2,2-dimethyl-1,3-dioxolan-4-yl)methyl methacrylate

    Hideharu Mori;Akira Hirao;Seiichi Nakahama

  • Controlled Anionic Polymerization of tert-Butyl Acrylate with Diphenylmethyl Anions in the Presence of Dialkylzinc

    Takashi Ishizone;Ken Yoshimura;and Akira Hirao;Seiichi Nakahama

Frequent Co-Authors

Akira Hirao
Akira Hirao National Taiwan University
Takashi Ishizone
Takashi Ishizone Tokyo Institute of Technology
Shinichi Itsuno
Shinichi Itsuno Toyohashi University of Technology
Junji Watanabe
Junji Watanabe Tokyo Institute of Technology
Hideharu Mori
Hideharu Mori Yamagata University
Sung Wan Kim
Sung Wan Kim University of Utah
Christopher W. Macosko
Christopher W. Macosko University of Minnesota
Tisato Kajiyama
Tisato Kajiyama Kyushu University
Toyoji Kakuchi
Toyoji Kakuchi Changchun University of Science and Technology
Jean M. J. Fréchet
Jean M. J. Fréchet University of California, Berkeley

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