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Takashi Hayashi

Takashi Hayashi

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 53 13287 11962 1013 924 287 7896

Takashi Hayashi publications per year

The chart shows the history of publications by Takashi Hayashi between 1964 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Takashi Hayashi published across 63 years, from 1964 to 2026, averaging 5.3 papers a year. Output peaked at 20 publications in 2014. 12 of the 333 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1964 to 2026. Vertical axis: number of publications, 0 to 20. Peak 20 publications in 2014. 1964: 1 publication 1965: 1 publication 1966: 1 publication 1967: 1 publication 1968: 0 publications 1969: 2 publications 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 1 publication 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 1 publication 1986: 0 publications 1987: 0 publications 1988: 1 publication 1989: 2 publications 1990: 4 publications 1991: 1 publication 1992: 3 publications 1993: 3 publications 1994: 4 publications 1995: 4 publications 1996: 4 publications 1997: 7 publications 1998: 7 publications 1999: 4 publications 2000: 5 publications 2001: 4 publications 2002: 6 publications 2003: 9 publications 2004: 6 publications 2005: 4 publications 2006: 14 publications 2007: 6 publications 2008: 10 publications 2009: 15 publications 2010: 7 publications 2011: 13 publications 2012: 14 publications 2013: 9 publications 2014: 20 publications 2015: 7 publications 2016: 14 publications 2017: 17 publications 2018: 17 publications 2019: 14 publications 2020: 11 publications 2021: 10 publications 2022: 7 publications 2023: 19 publications 2024: 11 publications 2025: 11 publications 2026: 1 publication
1964 2026

333 publications in total across all disciplines

View publications per year as a table
Takashi Hayashi: publications per year, 1964 to 2026
Year Publications
1964 1
1965 1
1966 1
1967 1
1968 0
1969 2
1970 0
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 1
1982 0
1983 0
1984 0
1985 1
1986 0
1987 0
1988 1
1989 2
1990 4
1991 1
1992 3
1993 3
1994 4
1995 4
1996 4
1997 7
1998 7
1999 4
2000 5
2001 4
2002 6
2003 9
2004 6
2005 4
2006 14
2007 6
2008 10
2009 15
2010 7
2011 13
2012 14
2013 9
2014 20
2015 7
2016 14
2017 17
2018 17
2019 14
2020 11
2021 10
2022 7
2023 19
2024 11
2025 11
2026 1
Total 333
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Takashi Hayashi 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 Takashi Hayashi 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, 281–300 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: 287 publications — 60th percentile

60% 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
241–260 1,100
261–280 979
281–300 939 287
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
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Takashi Hayashi 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 Takashi Hayashi 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, 52–53 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: 53 D-Index — 28th percentile

28% 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 53
54–55 933
56–57 1,051
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
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Overview

Takashi Hayashi is affiliated with Osaka University in Japan and focuses research efforts on multiple areas within biochemistry, molecular biology, chemistry, and materials science. Their body of work spans 66 publications in biochemistry, genetics, and molecular biology; 54 in chemistry; and 44 in materials science, reflecting a multidisciplinary approach.

Hayashi's subfields of study include molecular biology, materials chemistry, organic chemistry, cell biology, and inorganic chemistry. The researcher has contributed notably to topics such as hemoglobin structure and function, crystallization and solubility studies, porphyrin metabolism and disorders, porphyrin and phthalocyanine chemistry, X-ray diffraction in crystallography, metal-catalyzed oxygenation mechanisms, and metalloenzymes and iron-sulfur proteins.

Their recent papers highlight a diverse set of research themes and publication venues. Representative works include:

  • Thermoresponsive Micellar Assembly Constructed from a Hexameric Hemoprotein Modified with Poly(N-isopropylacrylamide) toward an Artificial Light-Harvesting System, 2020, Journal of the American Chemical Society
  • Chiral paddle-wheel diruthenium complexes for asymmetric catalysis, 2020, Nature Catalysis
  • DNA-Mediated Protein Shuttling between Coacervate-Based Artificial Cells, 2022, Angewandte Chemie International Edition
  • Myoglobins engineered with artificial cofactors serve as artificial metalloenzymes and models of natural enzymes, 2020, Dalton Transactions
  • Thermally Controlled Construction of Fe-Nx Active Sites on the Edge of a Graphene Nanoribbon for an Electrocatalytic Oxygen Reduction Reaction, 2021, ACS Applied Materials & Interfaces

Frequent coauthors contributing extensively alongside Hayashi are Koji Oohora, Shunsuke Kato, Akira Onoda, Yoshiyuki Kagawa, and Koki Matsumoto.

Hayashi has achieved multiple publications in prominent scientific venues. Most frequent among these are The Cambridge Structural Database, Angewandte Chemie International Edition, Angewandte Chemie, Inorganic Chemistry, and Chemistry Letters. The output in these journals highlights a sustained engagement with structural chemistry and inorganic chemistry disciplines.

Best Publications

  • New Functionalization of Myoglobin by Chemical Modification of Heme-Propionates

    Takashi Hayashi;Yoshio Hisaeda

  • Pentacoordinate anionic bis(siliconates) containing a fluorine bridge between two silicon atoms. Synthesis, solid-state structures, and dynamic behavior in solution

    Kohei Tamao;Takashi Hayashi;Yoshihiko Ito;Motoo Shiro

  • C(sp3)-H bond hydroxylation catalyzed by myoglobin reconstituted with manganese porphycene.

    Koji Oohora;Yushi Kihira;Eiichi Mizohata;Tsuyoshi Inoue

  • Molecular modelling of electron transfer systems by noncovalently linked porphyrin–acceptor pairing

    Unknown

  • Blue myoglobin reconstituted with an iron porphycene shows extremely high oxygen affinity

    Takashi Hayashi;Hirohisa Dejima;Takashi Matsuo;Hideaki Sato

  • Hemoproteins Reconstituted with Artificial Metal Complexes as Biohybrid Catalysts

    Koji Oohora;Akira Onoda;Takashi Hayashi

  • A hydrogenase model system based on the sequence of cytochrome c: photochemical hydrogen evolution in aqueous media

    Yohei Sano;Akira Onoda;Takashi Hayashi

  • Catalytic Cyclopropanation by Myoglobin Reconstituted with Iron Porphycene: Acceleration of Catalysis due to Rapid Formation of the Carbene Species.

    Koji Oohora;Hiroyuki Meichin;Liming Zhao;Matthew W. Wolf

  • Supramolecular Hemoprotein Linear Assembly by Successive Interprotein Heme−Heme Pocket Interactions

    Hiroaki Kitagishi;Koji Oohora;Hiroyasu Yamaguchi;Hideaki Sato

  • Peroxidase Activity of Myoglobin Is Enhanced by Chemical Mutation of Heme-Propionates

    Takashi Hayashi;Yutaka Hitomi;Tsutomu Ando;Tadashi Mizutani

  • Crystal structure and peroxidase activity of myoglobin reconstituted with iron porphycene.

    Takashi Hayashi;Dai Murata;Masatomo Makino;Hiroshi Sugimoto

  • Hybridization of modified-heme reconstitution and distal histidine mutation to functionalize sperm whale myoglobin.

    Hideaki Sato;Takashi Hayashi;Tsutomu Ando;Yoshio Hisaeda

  • Ligand binding properties of myoglobin reconstituted with iron porphycene: unusual O2 binding selectivity against CO binding.

    Takashi Matsuo;Hirohisa Dejima;Shun Hirota;Dai Murata

  • Hemoprotein-based supramolecular assembling systems.

    Koji Oohora;Takashi Hayashi

  • Self‐Assembly of One‐ and Two‐Dimensional Hemoprotein Systems by Polymerization through Heme–Heme Pocket Interactions

    Hiroaki Kitagishi;Hiroaki Kitagishi;Yasuaki Kakikura;Hiroyasu Yamaguchi;Koji Oohora

  • Photoinduced Hydrogen Evolution Catalyzed by a Synthetic Diiron Dithiolate Complex Embedded within a Protein Matrix

    Akira Onoda;Yoshihiko Kihara;Kazuki Fukumoto;Yohei Sano

  • Novel pentacoordinate anionic silicate, [o-C6H4(SiPhF2)2F]-K+.cntdot.18-crown-6, containing a bent fluoride bridge between two silicon atoms

    Kohei Tamao;Takashi Hayashi;Yoshihiko Ito;Motoo Shiro

  • Iron Porphyrin−Cyclodextrin Supramolecular Complex as a Functional Model of Myoglobin in Aqueous Solution

    Koji Kano;Hiroaki Kitagishi;Camille Dagallier;Masahito Kodera

  • Electrochemical reactions mediated by vitamin B12 derivatives in organic solvents

    Yoshio Hisaeda;Takuya Nishioka;Yoshiki Inoue;Kenshi Asada

  • Cobaltporphycenes as catalysts. The oxidation of vinyl ethers via the formation and dissociation of cobalt-carbon bonds

    Takashi Hayashi;Kenshi Okazaki;Naomi Urakawa;Hisashi Shimakoshi

  • Anion complexation by bidentate Lewis acidic hosts, ortho-bis(fluorosilyl) benzenes☆

    Kohei Tamao;Takashi Hayashi;Yoshihiko Ito

Frequent Co-Authors

Hisanobu Ogoshi
Hisanobu Ogoshi Kyoto University
Ulrich Schwaneberg
Ulrich Schwaneberg RWTH Aachen University
Shun Hirota
Shun Hirota Nara Institute of Science and Technology
Jun Okuda
Jun Okuda RWTH Aachen University
Yoshitsugu Shiro
Yoshitsugu Shiro University of Hyogo
Kazunari Yoshizawa
Kazunari Yoshizawa Kyushu University
Tsuyoshi Inoue
Tsuyoshi Inoue Osaka University
Shunichi Fukuzumi
Shunichi Fukuzumi Osaka University
Hiroyasu Yamaguchi
Hiroyasu Yamaguchi Osaka University
Susumu Kuwabata
Susumu Kuwabata Osaka University

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