Kazuhiko Hanai

645 total citations
50 papers, 548 citations indexed

About

Kazuhiko Hanai is a scholar working on Organic Chemistry, Spectroscopy and Molecular Biology. According to data from OpenAlex, Kazuhiko Hanai has authored 50 papers receiving a total of 548 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Organic Chemistry, 22 papers in Spectroscopy and 15 papers in Molecular Biology. Recurrent topics in Kazuhiko Hanai's work include Analytical Chemistry and Chromatography (12 papers), Crystal structures of chemical compounds (9 papers) and Synthesis and Reactivity of Sulfur-Containing Compounds (8 papers). Kazuhiko Hanai is often cited by papers focused on Analytical Chemistry and Chromatography (12 papers), Crystal structures of chemical compounds (9 papers) and Synthesis and Reactivity of Sulfur-Containing Compounds (8 papers). Kazuhiko Hanai collaborates with scholars based in Japan, United States and India. Kazuhiko Hanai's co-authors include Akio Kuwae, Ko‐Ki Kunimoto, Katsunosuke Machida, Toyozo Uno, Hitoshi Senda, Shiro Maeda, Chizuru Sasaki, Yoshifumi Maki, Satoshi Kawai and Toshiyuki Kato and has published in prestigious journals such as The Journal of Physical Chemistry, Journal of Chromatography A and Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy.

In The Last Decade

Kazuhiko Hanai

49 papers receiving 530 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kazuhiko Hanai Japan 13 248 155 140 121 89 50 548
Akio Kuwae Japan 15 248 1.0× 186 1.2× 146 1.0× 159 1.3× 116 1.3× 52 823
Elisabeth Rivara‐Minten Switzerland 12 265 1.1× 88 0.6× 106 0.8× 154 1.3× 97 1.1× 17 521
Erkki K. Euranto Finland 11 222 0.9× 86 0.6× 95 0.7× 65 0.5× 62 0.7× 51 449
Sergio Thea Italy 16 531 2.1× 204 1.3× 276 2.0× 149 1.2× 132 1.5× 84 886
Duncan G. Gillies United Kingdom 18 376 1.5× 276 1.8× 95 0.7× 207 1.7× 82 0.9× 67 915
Marek Łożyński Poland 12 219 0.9× 104 0.7× 106 0.8× 95 0.8× 101 1.1× 30 518
Okuma Emile Kasende Democratic Republic of the Congo 13 170 0.7× 103 0.7× 102 0.7× 107 0.9× 163 1.8× 28 490
Marcela Tkadlecová Czechia 16 319 1.3× 310 2.0× 82 0.6× 189 1.6× 109 1.2× 38 616
Valentim Emı́lio Uberti Costa Brazil 14 293 1.2× 210 1.4× 144 1.0× 136 1.1× 84 0.9× 37 632
Giuseppe Scarlata Italy 15 220 0.9× 171 1.1× 68 0.5× 103 0.9× 53 0.6× 49 542

Countries citing papers authored by Kazuhiko Hanai

Since Specialization
Citations

This map shows the geographic impact of Kazuhiko Hanai'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 Kazuhiko Hanai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kazuhiko Hanai more than expected).

Fields of papers citing papers by Kazuhiko Hanai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kazuhiko Hanai. 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 Kazuhiko Hanai. The network helps show where Kazuhiko Hanai may publish in the future.

Co-authorship network of co-authors of Kazuhiko Hanai

This figure shows the co-authorship network connecting the top 25 collaborators of Kazuhiko Hanai. A scholar is included among the top collaborators of Kazuhiko Hanai 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 Kazuhiko Hanai. Kazuhiko Hanai is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Honda, Mitsunori, et al.. (2009). A New Polymorph of 2-Thiohydantoin. X-ray Structure Analysis Online. 25. 91–92. 7 indexed citations
2.
Ichitani, Masaki, et al.. (2007). Crystal Structure of 4,4'-Diphenyl-2,2'-dithioxo-[4,4'-biimidazolidine]-5,5'-dione Bis(dimethylsulfoxide) Solvate. Analytical Sciences X-ray Structure Analysis Online. 23. X201–X202. 2 indexed citations
3.
Ichitani, Masaki, et al.. (2007). Crystal Structure of 5-Phenyl-2-thioxo-4-imidazolidinone. Analytical Sciences X-ray Structure Analysis Online. 23. X199–X200. 6 indexed citations
4.
Maeda, Shiro, Takashi Mori, Chizuru Sasaki, et al.. (2005). Structural investigation of microbial poly(?-L-lysine) derivatives with azo dyes by solid-state 13C and 15 N NMR. Polymer Bulletin. 53(4). 259–267. 16 indexed citations
5.
Kunimoto, Ko‐Ki, et al.. (2002). Crystal structures and vibrational spectra of racemic and chiral 4-phenyl-1,3-oxazolidine-2-thione. Journal of Chemical Crystallography. 32(12). 547–553. 8 indexed citations
6.
Hanai, Kazuhiko, et al.. (2001). A comparative vibrational and NMR study of cis-cinnamic acid polymorphs and trans-cinnamic acid. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 57(3). 513–519. 57 indexed citations
7.
Kunimoto, Ko‐Ki, et al.. (2001). Molecular structure and vibrational spectra of phenolphthalein and its dianion. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 57(2). 265–271. 29 indexed citations
8.
Senda, Hitoshi, et al.. (1998). Keto-Enol Tautomerism of Mono-Substituted Phenylpyruvic Acids as Studied by NMR and PM3 Calculation. Spectroscopy Letters. 31(2). 379–395. 6 indexed citations
9.
Takeuchi, Naoko, et al.. (1998). Molecular Structure and Dimerization ofd-Cycloserine in the Solid State. Spectroscopy Letters. 31(6). 1217–1231. 5 indexed citations
10.
Senda, Hitoshi, et al.. (1994). Crystal and Molecular Structures of Allocinnamic Acid. Bulletin of the Chemical Society of Japan. 67(5). 1475–1478. 8 indexed citations
11.
Senda, Hitoshi, et al.. (1994). Crystal and Molecular Structures of a Low-Melting Polymorph of Allocinnamic Acid. Bulletin of the Chemical Society of Japan. 67(9). 2574–2576. 8 indexed citations
12.
Hanai, Kazuhiko, Yoshifumi Maki, & Akio Kuwae. (1993). Vibrational spectra of β-lactams—III. potassium 2-azetidinone-1-sulfonate and its isotopic compounds. Spectrochimica Acta Part A Molecular Spectroscopy. 49(8). 1131–1137. 13 indexed citations
13.
Kawai, Satoshi, et al.. (1991). High-performance liquid chromatographic separation of p-hydroxyphenylpyruvic acid. Journal of Chromatography A. 585(2). 318–321. 4 indexed citations
14.
Hanai, Kazuhiko & Akio Kuwae. (1988). Preparation of β ‐alanine‐3,3‐D2 and −2,2,3,3‐D4. Journal of Labelled Compounds and Radiopharmaceuticals. 25(2). 217–224. 3 indexed citations
15.
Noguchi, Akihiro, et al.. (1980). Vibrational spectra of N-methylmethanesulfonamide and its C- and N-deuterated compounds. Spectrochimica Acta Part A Molecular Spectroscopy. 36(9). 829–834. 6 indexed citations
16.
Hanai, Kazuhiko, et al.. (1978). Infrared spectra of methanesulfonanilide and its C- and N-deuterated compounds. Spectrochimica Acta Part A Molecular Spectroscopy. 34(7-8). 771–775. 5 indexed citations
17.
Hanai, Kazuhiko, et al.. (1977). Preparation of methanesulfonyl chloride-d3 from dimethyl sulfoxide-d6.. Chemical and Pharmaceutical Bulletin. 25(4). 815–816. 7 indexed citations
18.
Hanai, Kazuhiko, et al.. (1975). Infrared spectra of methanesulfonamide and its C- and N-deuterated compounds. Spectrochimica Acta Part A Molecular Spectroscopy. 31(9-10). 1217–1225. 23 indexed citations
19.
Uno, Toyozo, Katsunosuke Machida, Kazuhiko Hanai, & Yutaka Saito. (1969). Infrared Spectra of Acylureas and NN′-Deuterated Acylureas. Bulletin of the Chemical Society of Japan. 42(3). 619–624. 12 indexed citations
20.
Uno, Toyozo, et al.. (1963). Infrared Spectra of Sulfonamide Derivatives. I. Pyridine, Thiazole, and Pyrimidine Derivatives.. Chemical and Pharmaceutical Bulletin. 11(6). 704–708. 27 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Akio Kuwae Breakdown of academic impact, for papers by Elisabeth Rivara‐Minten Breakdown of academic impact, for papers by Erkki K. Euranto Breakdown of academic impact, for papers by Sergio Thea Breakdown of academic impact, for papers by Duncan G. Gillies Breakdown of academic impact, for papers by Marek Łożyński Breakdown of academic impact, for papers by Okuma Emile Kasende Breakdown of academic impact, for papers by Marcela Tkadlecová Breakdown of academic impact, for papers by Valentim Emı́lio Uberti Costa Breakdown of academic impact, for papers by Giuseppe Scarlata
Rankless by CCL
2026