World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
40
Citations
6872
World Ranking
17859
National Ranking
1411

Akio Sugihara 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 Akio Sugihara 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: 91 publications — 1st percentile

1% of scientists in this discipline score the same or lower.

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

Akio Sugihara 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 Akio Sugihara 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: 40 D-Index — 1st percentile

1% of scientists in this discipline score the same or lower.

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

Overview

Akio Sugihara is affiliated with Tokushima Bunri University in Japan. Their academic profile does not currently list any recent papers, frequent co-authors, or publication venues, indicating either a focus outside major indexed research outputs or the absence of publicly documented collaborative networks and publishing patterns.

There is also no information available on book publications or specific fields and subfields of study associated with this researcher. Likewise, no main research topics or detailed scientific themes have been disclosed in the accessible data.

The lack of recorded awards or citations further suggests that the scientist's work might either be emerging, specialized in a domain with limited mainstream coverage, or otherwise not documented within common scholarly databases. This profile suggests a professional whose current available record is limited to institutional affiliation without extensive publicly cataloged research outputs or recognitions.

Best Publications

  • Enzymatic alcoholysis for biodiesel fuel production and application of the reaction to oil processing

    Yuji Shimada;Yomi Watanabe;Akio Sugihara;Yoshio Tominaga

  • Conversion of vegetable oil to biodiesel using immobilized Candida antarctica lipase

    Yuji Shimada;Yomi Watanabe;Taichi Samukawa;Akio Sugihara

  • Continuous production of biodiesel fuel from vegetable oil using immobilized Candida antarctica lipase

    Yomi Watanabe;Yuji Shimada;Akio Sugihara;Hideo Noda

  • Conversion of degummed soybean oil to biodiesel fuel with immobilized Candida antarctica lipase

    Yomi Watanabe;Yuji Shimada;Akio Sugihara;Yoshio Tominaga

  • Purification and Characterization of a Novel Thermostable Lipase from Bacillus sp.

    Akio Sugihara;Tadaaki Tani;Yoshio Tominaga

  • Enzymatic conversion of waste edible oil to biodiesel fuel in a fixed-bed bioreactor

    Yomi Watanabe;Yuji Shimada;Akio Sugihara;Yoshio Tominaga

  • Purification and characterization of a novel thermostable lipase from Pseudomonas cepacia.

    Akio Sugihara;Masahiko Ueshima;Yuji Shimada;Susumu Tsunasawa

  • Separation and characterization of two molecular forms of Geotrichum candidum lipase.

    Akio Sugihara;Yuji Shimada;Yoshio Tominaga

  • Enrichment of polyunsaturated fatty acids withGeotrichum candidum lipase

    Yuji Shimada;Kazuaki Maruyama;Suguru Okazaki;Masaki Nakamura

  • Purification of docosahexaenoic acid by selective esterification of fatty acids from tuna oil with Rhizopus delemar lipase

    Yuji Shimada;Akio Sugihara;Hirofumi Nakano;Takashi Kuramoto

  • cDNA molecular cloning of Geotrichum candidum lipase.

    Yuji Shimada;Akio Sugihara;Yoshio Tominaga;Taro Iizumi

  • Production of structured lipid containing docosahexaenoic and caprylic acids using immobilized Rhizopus delemar lipase

    Yuji Shimada;Akio Sugihara;Kazuaki Maruyama;Toshihiro Nagao

  • cDNA Cloning and Characterization of Geotrichum candidum Lipase II

    Yuji Shimada;Akio Sugihara;Taro Iizumi;Yoshio Tominaga

  • Facile purification of tocopherols from soybean oil deodorizer distillate in high yield using lipase

    Yuji Shimada;Seiichi Nakai;Masaharu Suenaga;Akio Sugihara

  • Purification and characterization of a novel solvent-tolerant lipase from Fusarium heterosporum

    Yuji Shimada;Chigusa Koga;Akio Sugihara;Toshihiro Nagao

  • Induction of Geotrichum candidum lipase by long-chain fatty acids

    Yuji Shimada;Akio Sugihara;Toshihiro Nagao;Yoshio Tominaga

  • Enzymatic synthesis of high-purity structured lipids with caprylic acid at 1,3-positions and polyunsaturated fatty acid at 2-position

    Akiko Kawashima;Yuji Shimada;Miwa Yamamoto;Akio Sugihara

  • Enzymatic purification of polyunsaturated fatty acids.

    Yuji Shimada;Akio Sugihara;Yoshio Tominaga

  • Purification of docosahexaenoic acid from tuna oil by a two-step enzymatic method: Hydrolysis and selective esterification

    Yuji Shimada;Kazuaki Maruyama;Akio Sugihara;Shigeru Moriyama

  • Stepwise ethanolysis of tuna oil using immobilized Candida antarctica lipase.

    Yomi Watanabe;Yuji Shimada;Akio Sugihara;Yoshio Tominaga

  • Enzymatic synthesis of steryl esters of polyunsaturated fatty acids

    Yuji Shimada;Yoshinori Hirota;Takashi Baba;Akio Sugihara

Frequent Co-Authors

Yuji Shimada
Yuji Shimada Osaka University
Susumu Tsunasawa
Susumu Tsunasawa Osaka University
Hirofumi Nakano
Hirofumi Nakano Jichi Medical University
Yoshifumi Takeda
Yoshifumi Takeda Okayama University
Toshio Miwatani
Toshio Miwatani Osaka University

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