Kôichi Kikuchi

14.5k total citations · 1 hit paper
473 papers, 11.5k citations indexed

About

Kôichi Kikuchi is a scholar working on Organic Chemistry, Materials Chemistry and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, Kôichi Kikuchi has authored 473 papers receiving a total of 11.5k indexed citations (citations by other indexed papers that have themselves been cited), including 234 papers in Organic Chemistry, 204 papers in Materials Chemistry and 160 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in Kôichi Kikuchi's work include Fullerene Chemistry and Applications (153 papers), Organic and Molecular Conductors Research (144 papers) and Magnetism in coordination complexes (131 papers). Kôichi Kikuchi is often cited by papers focused on Fullerene Chemistry and Applications (153 papers), Organic and Molecular Conductors Research (144 papers) and Magnetism in coordination complexes (131 papers). Kôichi Kikuchi collaborates with scholars based in Japan, United States and Poland. Kôichi Kikuchi's co-authors include Yohji Achiba, Isao Ikemoto, Kazuya Saito, Hiroshi Kokubun, Shinzo Suzuki, Hiroyuki Nishikawa, Takeshi Kodama, Katsuya Inoue, Yasutake Takahashi and Tsutomu Miyashi and has published in prestigious journals such as Nature, Chemical Reviews and Journal of the American Chemical Society.

In The Last Decade

Kôichi Kikuchi

462 papers receiving 11.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

NMR characterization of isomers of C78, C82 and C84 fullerenes

1992 436 citations Kôichi Kikuchi, Kazuya Saito et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Kôichi Kikuchi Japan	54	6.3k	6.2k	2.5k	1.6k	1.6k	473	11.5k
Tokio Yamabe Japan	52	4.3k 0.7×	3.8k 0.6×	2.5k 1.0×	1.0k 0.6×	3.6k 2.3×	635	11.6k
Robin K. Harris United Kingdom	55	6.3k 1.0×	3.7k 0.6×	1.6k 0.6×	1.5k 0.9×	996 0.6×	490	15.3k
Heinzwerner Preuß Germany	23	4.4k 0.7×	5.5k 0.9×	1.6k 0.6×	2.2k 1.3×	1.6k 1.0×	37	14.0k
Jan Andzelm United States	44	5.0k 0.8×	3.4k 0.5×	1.1k 0.4×	1.8k 1.1×	1.7k 1.1×	132	13.0k
S. J. A. van Gisbergen Netherlands	30	5.7k 0.9×	4.7k 0.8×	3.3k 1.3×	3.1k 1.9×	2.2k 1.4×	36	15.2k
Elı́es Molins Spain	56	4.8k 0.8×	6.9k 1.1×	3.5k 1.4×	4.8k 3.0×	1.3k 0.8×	490	16.8k
G. te Velde Netherlands	13	6.1k 1.0×	5.7k 0.9×	2.8k 1.1×	2.5k 1.5×	2.3k 1.4×	17	16.2k
Michael C. Zerner United States	48	5.3k 0.8×	3.2k 0.5×	2.2k 0.9×	3.4k 2.1×	2.1k 1.3×	231	12.9k
William J. Pietro Canada	29	3.8k 0.6×	4.7k 0.8×	1.2k 0.5×	1.9k 1.2×	2.3k 1.5×	92	12.3k
László von Szentpály Germany	25	2.4k 0.4×	5.1k 0.8×	1.6k 0.6×	1.2k 0.8×	756 0.5×	65	9.0k

Countries citing papers authored by Kôichi Kikuchi

Since Specialization

Citations

This map shows the geographic impact of Kôichi Kikuchi's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kôichi Kikuchi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kôichi Kikuchi more than expected).

Fields of papers citing papers by Kôichi Kikuchi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kôichi Kikuchi. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kôichi Kikuchi. The network helps show where Kôichi Kikuchi may publish in the future.

Co-authorship network of co-authors of Kôichi Kikuchi

This figure shows the co-authorship network connecting the top 25 collaborators of Kôichi Kikuchi. A scholar is included among the top collaborators of Kôichi Kikuchi based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kôichi Kikuchi. Kôichi Kikuchi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Oe, Yuji, Yuji Noguchi, Kôichi Kikuchi, et al.. (2025). Waldenström's Macroglobulinemia/Lymphoplasmacytic Lymphoma Developing Renal AA Amyloidosis: A Case Report and Literature Review. Internal Medicine. 64(8). 1199–1204.

Mikami, Bunzo, Aina Gotoh, Toshihiko Katoh, et al.. (2025). Suppression of fecal phenol production by oral supplementation of sesamol: inhibition of tyrosine phenol-lyase by sesamol. Food & Function. 16(9). 3542–3552. 1 indexed citations

Kikuchi, Kôichi, et al.. (2025). Graphene Biosensor Differentiating Sensitive Interactions between Ribonucleic Acid and Dipeptide Repeats in Liquid–Liquid Phase Separation. ACS Applied Materials & Interfaces. 17(8). 12765–12771. 2 indexed citations

Akiyama, Yasutoshi, Kôichi Kikuchi, Daisuke Saigusa, et al.. (2013). Indoxyl Sulfate Down-Regulates SLCO4C1 Transporter through Up-Regulation of GATA3. PLoS ONE. 8(7). e66518–e66518. 21 indexed citations

Ando, Masanori, et al.. (2012). Effect of Pre-Strain and Ratcheting Strain on Fatigue and Creep-Fatigue Lives in Mod.9Cr-1Mo Steel. Journal of the Society of Materials Science Japan. 61(4). 377–384. 1 indexed citations

Toyohara, Takafumi, Takehiro Suzuki, Yasutoshi Akiyama, et al.. (2011). Metabolomic profiling of the autosomal dominant polycystic kidney disease rat model. Clinical and Experimental Nephrology. 15(5). 676–687. 21 indexed citations

Fujita, Wataru, Kôichi Kikuchi, & Kunio Awaga. (2008). Structural Study of a Dimerization Process in an Organic Radical Magnet, BBDTA⋅InBr₄. Angewandte Chemie. 120(49). 9622–9625. 6 indexed citations

Kousaka, Yusuke, et al.. (2007). CuB 2 O 4 のカイラル磁気秩序およびと整合-非整合転移. Journal of the Physical Society of Japan. 76(12). 1–123709. 4 indexed citations

Kikuchi, Kôichi, Hiroyuki Nishikawa, Isao Ikemoto, et al.. (2002). Tetrachloroferrate (III) Salts of BDH-TTP [2,5-Bis(1,3-dithiolan-2-ylidene)-1,3,4,6-tetrathiapentalene] and BDA-TTP [2,5-Bis(1,3-dithian-2-ylidene)-1,3,4,6-tetrathiapentalene]: Crystal Structures and Physical Properties. Journal of Solid State Chemistry. 168(2). 503–508. 27 indexed citations

10.

Saito, Kazuya, Akane Sato, Kôichi Kikuchi, et al.. (2000). Calorimetric Study of Metal-Insulator Transition in (DIMET)₂I₃¹⁾. Journal of the Physical Society of Japan. 69(11). 3602–3606. 11 indexed citations

11.

Iwai, S., Shigeo Murata, Ryuzi Katoh, et al.. (2000). Ultrafast charge separation and exciplex formation induced by strong interaction between electron donor and acceptor at short distances. The Journal of Chemical Physics. 112(16). 7111–7117. 39 indexed citations

12.

Iwasaki, Kentaro, et al.. (1999). Ultraviolet photoelectron spectra ofC100,C110,and potassium-dopedC110. Physical review. B, Condensed matter. 60(7). 5044–5048. 14 indexed citations

13.

Yoshino, Harukazu, Kazuya Saito, Hiroyuki Nishikawa, et al.. (1997). In-Plane Angular Effect of Magnetoresistance of Quasi-One-Dimensional Organic Metals, (DMET)₂AuBr₂and (TMTSF)₂ClO₄. Journal of the Physical Society of Japan. 66(8). 2410–2418. 32 indexed citations

14.

Kato, Tadashi, Kôichi Kikuchi, & Yohji Achiba. (1993). Measurement of the self-diffusion coefficient of fullerene C60 in benzene-d6 using carbon-13 pulsed-gradient spin echo. The Journal of Physical Chemistry. 97(40). 10251–10253. 28 indexed citations

15.

Tanaka, Kazuo, Anvar Zakhidov, Kazunari Yoshizawa, et al.. (1992). Magnetic properties of TDAE-C60 and TDAE-C70. A comparative study. Physics Letters A. 164(2). 221–226. 87 indexed citations

16.

Fortune, N. A., F. Iga, Y. Nishihara, et al.. (1991). Calorimetric observation of a structural phase transition at elevated temperatures in single crystal C60. Physica C Superconductivity. 185-189. 425–426. 10 indexed citations

17.

Kikuchi, Kôichi, Yasutake Takahashi, Kazuhide Koike, et al.. (1990). The Free Enthalpy Dependence of Rate Constants of Return Electron Transfer within Photoproduced Geminate Radical Ion Pairs. Zeitschrift für Physikalische Chemie. 167(1). 27–39. 26 indexed citations

18.

Kikuchi, Kôichi, et al.. (1985). Deactivation mechanism of photoexcited phenazine in trifluoroethanol (CF3CH2OH). The Journal of Physical Chemistry. 89(16). 3567–3570. 5 indexed citations

19.

Oike, Yuichi, et al.. (1979). A clinical study on urinary kallikrein in patients with renal diseases.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 120B. 549–59. 5 indexed citations

20.

Kikuchi, Kôichi, et al.. (1977). Intersystem Crossing Processes of Acridine. Bulletin of the Chemical Society of Japan. 50(4). 879–882. 14 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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