Koichi Murayama

2.2k total citations
50 papers, 1.8k citations indexed

About

Koichi Murayama is a scholar working on Molecular Biology, Biophysics and Analytical Chemistry. According to data from OpenAlex, Koichi Murayama has authored 50 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Molecular Biology, 18 papers in Biophysics and 13 papers in Analytical Chemistry. Recurrent topics in Koichi Murayama's work include Spectroscopy Techniques in Biomedical and Chemical Research (18 papers), Spectroscopy and Chemometric Analyses (13 papers) and Protein Interaction Studies and Fluorescence Analysis (9 papers). Koichi Murayama is often cited by papers focused on Spectroscopy Techniques in Biomedical and Chemical Research (18 papers), Spectroscopy and Chemometric Analyses (13 papers) and Protein Interaction Studies and Fluorescence Analysis (9 papers). Koichi Murayama collaborates with scholars based in Japan, China and United States. Koichi Murayama's co-authors include Mihoko Tomida, Yukihiro Ozaki, Yuqing Wu, Bogusława Czarnik‐Matusewicz, Ryozo Kitamaru, Fumitaka Horii, Ken Tanaka, Roumiana Tsenkova, Yuki Kimura and Keiichi Noguchi and has published in prestigious journals such as Journal of Biological Chemistry, The Journal of Physical Chemistry B and Biochemistry.

In The Last Decade

Koichi Murayama

50 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koichi Murayama Japan 22 540 442 397 348 289 50 1.8k
K. Volka Czechia 22 372 0.7× 249 0.6× 259 0.7× 234 0.7× 389 1.3× 105 1.6k
Joseph L. Lippert United States 17 627 1.2× 200 0.5× 205 0.5× 275 0.8× 394 1.4× 22 1.7k
Sang Hak Lee South Korea 27 554 1.0× 229 0.5× 129 0.3× 137 0.4× 458 1.6× 141 2.0k
Matthias Rainer Austria 28 664 1.2× 507 1.1× 474 1.2× 128 0.4× 676 2.3× 109 2.4k
Xia Wu China 25 1.1k 2.1× 196 0.4× 297 0.7× 113 0.3× 718 2.5× 113 1.9k
Zhongfang Liu China 26 1.3k 2.3× 344 0.8× 131 0.3× 237 0.7× 539 1.9× 134 2.2k
Marco Leona United States 31 624 1.2× 550 1.2× 138 0.3× 372 1.1× 322 1.1× 69 3.1k
Г. И. Довбешко Ukraine 20 382 0.7× 152 0.3× 287 0.7× 284 0.8× 937 3.2× 136 2.0k
U. P. Fringeli Switzerland 22 983 1.8× 104 0.2× 157 0.4× 179 0.5× 266 0.9× 50 1.7k
Marek Sikorski Poland 30 682 1.3× 625 1.4× 1.2k 3.1× 86 0.2× 860 3.0× 148 3.3k

Countries citing papers authored by Koichi Murayama

Since Specialization
Citations

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

Fields of papers citing papers by Koichi Murayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichi Murayama

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Murayama. A scholar is included among the top collaborators of Koichi Murayama 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 Koichi Murayama. Koichi Murayama 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.
Aoyagi, Hideki, et al.. (2022). Development of a device for cultivation and isolation of microbes using a specialized cellulose film. Journal of Microbiological Methods. 195. 106450–106450. 4 indexed citations
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Hashiramoto, Akira, Koichi Murayama, Kohsuke Yoshida, et al.. (2017). A variant of death-receptor 3 associated with rheumatoid arthritis interferes with apoptosis-induction of T cell. Journal of Biological Chemistry. 293(6). 1933–1943. 7 indexed citations
4.
Murayama, Koichi, Yu Shibata, Haruki Sugiyama, Hidehiro Uekusa, & Ken Tanaka. (2016). Synthesis, Structure, and Photophysical/Chiroptical Properties of Benzopicene-Based π-Conjugated Molecules. The Journal of Organic Chemistry. 82(2). 1136–1144. 26 indexed citations
5.
Tanaka, Ken, Yuki Kimura, & Koichi Murayama. (2014). Enantioselective Helicene Synthesis by Rhodium-Catalyzed [2+2+2] Cycloadditions. Bulletin of the Chemical Society of Japan. 88(3). 375–385. 109 indexed citations
6.
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Murayama, Koichi & Mihoko Tomida. (2004). Heat-Induced Secondary Structure and Conformation Change of Bovine Serum Albumin Investigated by Fourier Transform Infrared Spectroscopy. Biochemistry. 43(36). 11526–11532. 408 indexed citations
8.
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Murayama, Koichi, Bo Yuan, Yukihiro Ozaki, Mihoko Tomida, & Seiichi Era. (2003). Near-infrared spectroscopy for liquids of microliter volume using capillaries with wall transmission. The Analyst. 128(7). 957–957. 7 indexed citations
10.
Yuan, Bo, Koichi Murayama, Yuqing Wu, et al.. (2003). Temperature-Dependent Near-Infrared Spectra of Bovine Serum Albumin in Aqueous Solutions: Spectral Analysis by Principal Component Analysis and Evolving Factor Analysis. Applied Spectroscopy. 57(10). 1223–1229. 39 indexed citations
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Wu, Yuqing, Bogusława Czarnik‐Matusewicz, Koichi Murayama, & Yukihiro Ozaki. (2000). Two-Dimensional Near-Infrared Spectroscopy Study of Human Serum Albumin in Aqueous Solutions:  Using Overtones and Combination Modes to Monitor Temperature-Dependent Changes in the Secondary Structure. The Journal of Physical Chemistry B. 104(24). 5840–5847. 74 indexed citations
14.
15.
Murayama, Koichi, et al.. (1998). Multivariate Determination of Human Serum Albumin and γ-Globulin in a Phosphate Buffer Solution by near Infrared Spectroscopy. Journal of Near Infrared Spectroscopy. 6(1). 375–381. 9 indexed citations
16.
Murayama, Koichi, et al.. (1994). Photo-regulation of hydrolysis activity of semisynthetic mutant phospholipases A2 replaced by non-natural aromatic amino acids. Journal of the Chemical Society Perkin Transactions 1. 225–225. 12 indexed citations
17.
Doida, Yukio, et al.. (1988). pump activity in the new membrane formed at first cleavage in Cynops pyrrhogaster eggs. Developmental Biology. 126(2). 331–336. 4 indexed citations
18.
Kitamaru, Ryozo, Fumitaka Horii, & Koichi Murayama. (1986). Phase structure of lamellar crystalline polyethylene by solid-state high-resolution carbon-13 NMR detection of the crystalline-amorphous interphase. Macromolecules. 19(3). 636–643. 207 indexed citations
19.
Murayama, Koichi, et al.. (1977). Developmental changes of action potentials in olfactory cortex slice of guinea pig.. PubMed. 39(3). 59–61. 4 indexed citations
20.
Murayama, Koichi. (1965). Proprioceptive Reflex Responses of the Efferent Axons to Passive and Active Movements in the Cheliped of the Crayfish (With 8 Text-figures). Hokkaido University Collection of Scholarly and Academic Papers (Hokkaido University). 15(4). 510–521. 1 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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