World's Best Scientists 2026 revealed!
VIEW LIST
Hirofumi Shoun

Hirofumi Shoun

University of Tokyo
Japan

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 56 11845 10671 879 803 234 9231
Biology and Biochemistry 59 12810 11788 885 829 238 9603

Hirofumi Shoun publications per year

The chart shows the history of publications by Hirofumi Shoun between 1970 and 2016, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hirofumi Shoun published across 47 years, from 1970 to 2016, averaging 5.1 papers a year. Output peaked at 33 publications in 2004. 4 of the 241 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1970 to 2016. Vertical axis: number of publications, 0 to 33. Peak 33 publications in 2004. 1970: 1 publication 1971: 0 publications 1972: 1 publication 1973: 0 publications 1974: 1 publication 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 2 publications 1979: 3 publications 1980: 1 publication 1981: 0 publications 1982: 3 publications 1983: 2 publications 1984: 0 publications 1985: 1 publication 1986: 1 publication 1987: 0 publications 1988: 0 publications 1989: 2 publications 1990: 1 publication 1991: 2 publications 1992: 3 publications 1993: 2 publications 1994: 6 publications 1995: 4 publications 1996: 5 publications 1997: 9 publications 1998: 3 publications 1999: 3 publications 2000: 8 publications 2001: 7 publications 2002: 20 publications 2003: 11 publications 2004: 33 publications 2005: 13 publications 2006: 15 publications 2007: 7 publications 2008: 16 publications 2009: 9 publications 2010: 24 publications 2011: 6 publications 2012: 5 publications 2013: 3 publications 2014: 4 publications 2015: 1 publication 2016: 3 publications
1970 2016

241 publications in total across all disciplines

View publications per year as a table
Hirofumi Shoun: publications per year, 1970 to 2016
Year Publications
1970 1
1971 0
1972 1
1973 0
1974 1
1975 0
1976 0
1977 0
1978 2
1979 3
1980 1
1981 0
1982 3
1983 2
1984 0
1985 1
1986 1
1987 0
1988 0
1989 2
1990 1
1991 2
1992 3
1993 2
1994 6
1995 4
1996 5
1997 9
1998 3
1999 3
2000 8
2001 7
2002 20
2003 11
2004 33
2005 13
2006 15
2007 7
2008 16
2009 9
2010 24
2011 6
2012 5
2013 3
2014 4
2015 1
2016 3
Total 241
Download as CSV

Hirofumi Shoun 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 Hirofumi Shoun sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 221–240 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 234 publications — 44th percentile

44% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216 234
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
Download as CSV

Hirofumi Shoun 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 Hirofumi Shoun sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 56–57 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 56 D-Index — 36th percentile

36% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051 56
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
Download as CSV

Overview

Hirofumi Shoun is affiliated with the University of Tokyo in Japan. Their academic profile centers primarily on their position within this institution, with a focus on scientific research as reflected by available data.

There are no recorded recent papers by Hirofumi Shoun listed, nor any information about frequent co-authors or frequent publication venues. Similarly, there are no records of book publications or specific awards attributed to this researcher.

Their main fields of study, subfields, and the main topics of their work are not detailed in the available information, which limits insight into the particular academic areas they contribute to.

From the data provided, it is evident that Hirofumi Shoun is an active researcher with association to a major Japanese university, but further specifics about their research output, collaborations, and scholarly focus are not publicly documented in the source data.

Best Publications

  • Thermacetogenium phaeum gen. nov., sp. nov., a strictly anaerobic, thermophilic, syntrophic acetate-oxidizing bacterium.

    Satoshi Hattori;Yoichi Kamagata;Satoshi Hanada;Hirofumi Shoun

  • Aerobic Denitrifying Bacteria That Produce Low Levels of Nitrous Oxide

    Naoki Takaya;Maria Antonina B. Catalan-Sakairi;Yasushi Sakaguchi;Isao Kato

  • Fungal denitrification and nitric oxide reductase cytochrome P450nor

    Hirofumi Shoun;Shinya Fushinobu;Li Jiang;Sang-Wan Kim

  • Nitrous oxide emission from nitrifying activated sludge dependent on denitrification by ammonia-oxidizing bacteria.

    Sang-Wan Kim;Morio Miyahara;Shinya Fushinobu;Takayoshi Wakagi

  • Crystal structure of nitric oxide reductase from denitrifying fungus Fusarium oxysporum.

    S Y Park;H Shimizu;S Adachi;A Nakagawa

  • Cytochrome P-450 55A1 (P-450dNIR) acts as nitric oxide reductase employing NADH as the direct electron donor.

    Unknown

  • Spectroscopic and Kinetic Studies on Reaction of Cytochrome P450nor with Nitric Oxide IMPLICATION FOR ITS NITRIC OXIDE REDUCTION MECHANISM

    Yoshitsugu Shiro;Motoyasu Fujii;Tetsutaro Iizuka;Shin-ichi Adachi

  • Ammonia fermentation, a novel anoxic metabolism of nitrate by fungi.

    Zhemin Zhou;Naoki Takaya;Akira Nakamura;Masashi Yamaguchi

  • Oxygen requirement for denitrification by the fungus Fusarium oxysporum.

    Zhemin Zhou;Naoki Takaya;Maria Antonina C. Sakairi;Hirofumi Shoun

  • Denitrification, a Novel Type of Respiratory Metabolism in Fungal Mitochondrion

    Unknown

  • Trimeric crystal structure of the glycoside hydrolase family 42 β-galactosidase from Thermus thermophilus A4 and the structure of its complex with galactose

    Masafumi Hidaka;Shinya Fushinobu;Naomi Ohtsu;Hidemasa Motoshima

  • Denitrification by the fungus Cylindrocarpon tonkinense: anaerobic cell growth and two isozyme forms of cytochrome P-450nor.

    K. Usuda;N. Toritsuka;Y. Matsuo;Du-Hyun Kim

  • Potential of Aerobic Denitrification by Pseudomonas stutzeri TR2 To Reduce Nitrous Oxide Emissions from Wastewater Treatment Plants

    Morio Miyahara;Sang-Wan Kim;Shinya Fushinobu;Koki Takaki

  • Nitric oxide reductase (P450nor) from Fusarium oxysporum.

    Andreas Daiber;Hirofumi Shoun;Volker Ullrich

  • Structural and thermodynamic analyses of solute-binding Protein from Bifidobacterium longum specific for core 1 disaccharide and lacto-N-biose I.

    Ryuichiro Suzuki;Jun Wada;Jun Wada;Takane Katayama;Shinya Fushinobu

  • Proton delivery in NO reduction by fungal nitric-oxide reductase. Cryogenic crystallography, spectroscopy, and kinetics of ferric-NO complexes of wild-type and mutant enzymes

    Hideaki Shimizu;Eiji Obayashi;Yuki Gomi;Hiroshi Arakawa

  • Chitobiose Phosphorylase from Vibrio proteolyticus, a Member of Glycosyl Transferase Family 36, Has a Clan GH-L-like (α/α)6 Barrel Fold

    Masafumi Hidaka;Yuji Honda;Motomitsu Kitaoka;Satoru Nirasawa

  • The Copper-containing Dissimilatory Nitrite Reductase Involved in the Denitrifying System of the Fungus Fusarium oxysporum

    Michiyoshi Kobayashi;Hirofumi Shoun

  • Fungal Ammonia Fermentation, a Novel Metabolic Mechanism That Couples the Dissimilatory and Assimilatory Pathways of Both Nitrate and Ethanol: ROLE OF ACETYL CoA SYNTHETASE IN ANAEROBIC ATP SYNTHESIS *

    Kazuto Takasaki;Hirofumi Shoun;Masashi Yamaguchi;Kanji Takeo

  • Crystal Structure of a Family 54 α-l-Arabinofuranosidase Reveals a Novel Carbohydrate-binding Module That Can Bind Arabinose

    Akimasa Miyanaga;Takuya Koseki;Hiroshi Matsuzawa;Takayoshi Wakagi

  • Unique binding of nitric oxide to ferric nitric oxide reductase from Fusarium oxysporum elucidated with infrared, resonance Raman, and X-ray absorption spectroscopies

    Eiji Obayashi;Koki Tsukamoto;Shin Ichi Adachi;Satoshi Takahashi

  • Isotope effects and intermediates in the reduction of NO by P450NOR

    A. Daiber;T. Nauser;N. Takaya;T. Kudo

Frequent Co-Authors

Shinya Fushinobu
Shinya Fushinobu University of Tokyo
Motomitsu Kitaoka
Motomitsu Kitaoka Niigata University
Kenji Yamamoto
Kenji Yamamoto Ishikawa Prefectural University
Yoshitsugu Shiro
Yoshitsugu Shiro University of Hyogo
Volker Ullrich
Volker Ullrich University of Konstanz
Andreas Daiber
Andreas Daiber Johannes Gutenberg University of Mainz
Haruo Ikeda
Haruo Ikeda Kitasato University
Hiroshi Nishimasu
Hiroshi Nishimasu University of Tokyo
Toshio Omori
Toshio Omori Shibaura Institute of Technology
Hideaki Nojiri
Hideaki Nojiri University of Tokyo

External Links

Personal website of Hirofumi Shoun

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Best Scientists Citing Hirofumi Shoun

Motomitsu Kitaoka

Motomitsu Kitaoka

Niigata University

Publications: 58

Shinya Fushinobu

Shinya Fushinobu

University of Tokyo

Publications: 40

Yoichi Kamagata

Yoichi Kamagata

National Institute of Advanced Industrial Science and Technology

Publications: 27

Kenji Yamamoto

Kenji Yamamoto

Ishikawa Prefectural University

Publications: 23

Bing-Jie Ni

Bing-Jie Ni

University of New South Wales

Publications: 21

Christoph Müller

Christoph Müller

Potsdam Institute for Climate Impact Research

Publications: 19

Bernard Henrissat

Bernard Henrissat

Technical University of Denmark

Publications: 19

Zhiguo Yuan

Zhiguo Yuan

City University of Hong Kong

Publications: 18

Andrew W. Munro

Andrew W. Munro

University of Manchester

Publications: 17

Yoshitsugu Shiro

Yoshitsugu Shiro

University of Hyogo

Publications: 16

Birte Svensson

Birte Svensson

Technical University of Denmark

Publications: 14

Hideki Harada

Hideki Harada

Tohoku University

Publications: 14

Nicolai Lehnert

Nicolai Lehnert

University of Michigan–Ann Arbor

Publications: 14

Volker Ullrich

Volker Ullrich

University of Konstanz

Publications: 14

Alfons J. M. Stams

Alfons J. M. Stams

Wageningen University & Research

Publications: 14

Reinhard Well

Reinhard Well

University of Göttingen

Publications: 13

Related Chemistry Rankings & Guides

2027 How Fast Can You Get a Forensic Science Degree Online?

2027 How Fast Can You Get a Forensic Science Degree Online?
2027 Credit Requirements for a Forensic Science Degree Explained

2027 Credit Requirements for a Forensic Science Degree Explained
2027 Fastest Online Forensic Science Degree Programs You Can Finish in Under 2 Years

2027 Fastest Online Forensic Science Degree Programs You Can Finish in Under 2 Years
2027 How Fast Can You Get a Chemistry Degree Online?

2027 How Fast Can You Get a Chemistry Degree Online?
2027 How Much Does a Forensic Science Degree Program Cost? Tuition, Fees & Total Expense Breakdown

2027 How Much Does a Forensic Science Degree Program Cost? Tuition, Fees & Total Expense Breakdown
2027 How to Become a Medical Examiner: Education, Salary, and Job Outlook

2027 How to Become a Medical Examiner: Education, Salary, and Job Outlook
2027 Online Chemistry Degree Programs Costs: Tuition & Fees

2027 Online Chemistry Degree Programs Costs: Tuition & Fees
2027 Can You Get a Forensic Science Degree Master's Without a Related Bachelor's Degree?

2027 Can You Get a Forensic Science Degree Master's Without a Related Bachelor's Degree?
2027 How to Become a Coroner: Education, Salary, and Job Outlook

2027 How to Become a Coroner: Education, Salary, and Job Outlook
2027 Forensic Science Degree Coursework Explained: What Classes Can You Expect to Take?

2027 Forensic Science Degree Coursework Explained: What Classes Can You Expect to Take?
2027 Biotechnology Careers: Guide to Career Paths, Options & Salary

2027 Biotechnology Careers: Guide to Career Paths, Options & Salary
2027 Is Demand for Forensic Science Degree Graduates Growing or Declining?

2027 Is Demand for Forensic Science Degree Graduates Growing or Declining?
2027 How to Become a Crime Scene Photographer: Education, Salary, and Job Outlook

2027 How to Become a Crime Scene Photographer: Education, Salary, and Job Outlook
2027 How to Become a Medicolegal Death Investigator: Education, Salary, and Job Outlook

2027 How to Become a Medicolegal Death Investigator: Education, Salary, and Job Outlook

Recently Published Articles

2027 Best Nursing Schools in Corpus Christi, TX – Accredited Nursing Degree Programs Online

2027 Best Nursing Schools in Corpus Christi, TX – Accredited Nursing Degree Programs Online
2027 How to Become a Preschool Teacher Assistant in Kentucky: Requirements & Certification

2027 How to Become a Preschool Teacher Assistant in Kentucky: Requirements & Certification
2027 Best Accredited Online Global Studies Bachelor's Degree Programs

2027 Best Accredited Online Global Studies Bachelor's Degree Programs
2027 Bachelor of Social Work (BSW)

2027 Bachelor of Social Work (BSW)
2027 How to Become a Marriage and Family Therapist (MFT) in Orlando, FL: License Requirements & Salary

2027 How to Become a Marriage and Family Therapist (MFT) in Orlando, FL: License Requirements & Salary
2027 How to Become a Sustainability Specialist: Education, Salary, and Job Outlook

2027 How to Become a Sustainability Specialist: Education, Salary, and Job Outlook
2027 Best ABSN Programs - Accelerated BSN Programs in Virginia: Online & Campus

2027 Best ABSN Programs - Accelerated BSN Programs in Virginia: Online & Campus
2027 Self-Paced Online Healthcare Compliance & Regulations Bachelor's Degree Programs

2027 Self-Paced Online Healthcare Compliance & Regulations Bachelor's Degree Programs
2027 How To Become a Crime Scene Technician

2027 How To Become a Crime Scene Technician
2027 Am I Eligible for a TESOL Degree Master's Program? Admission Checklist & Options

2027 Am I Eligible for a TESOL Degree Master's Program? Admission Checklist & Options
2027 How Long Does It Take to Earn an Online Game Design Degree?

2027 How Long Does It Take to Earn an Online Game Design Degree?
2027 Is a Master’s in Biotechnology Worth It?

2027 Is a Master’s in Biotechnology Worth It?
2027 Online Population Health Doctorate Programs That Give Credit for Prior Graduate Work

2027 Online Population Health Doctorate Programs That Give Credit for Prior Graduate Work
2027 Admission Requirements for Surgical Tech Degree Programs

2027 Admission Requirements for Surgical Tech Degree Programs
2027 Most Affordable Online Public Administration Degrees

2027 Most Affordable Online Public Administration Degrees
2027 Nursing Accreditation: How It Works and How to Choose a Nursing Program

2027 Nursing Accreditation: How It Works and How to Choose a Nursing Program
2027 Fastest-Growing Careers for Biology Degree Graduates

2027 Fastest-Growing Careers for Biology Degree Graduates
2027 Best Nursing Schools in Jersey City, NJ – Accredited Nursing Degree Programs Online

2027 Best Nursing Schools in Jersey City, NJ – Accredited Nursing Degree Programs Online
2027 How to Become a Licensed Counselor (LPC) in Montana

2027 How to Become a Licensed Counselor (LPC) in Montana
2027 Cheapest Online Nurse Executive Leader Master's Degrees That Pay Well: Tuition, Duration, and Earnings

2027 Cheapest Online Nurse Executive Leader Master's Degrees That Pay Well: Tuition, Duration, and Earnings
2027 Is Construction Management a Hard Major? What Students Should Know

2027 Is Construction Management a Hard Major? What Students Should Know