M. Kojima

7.1k total citations
215 papers, 4.6k citations indexed

About

M. Kojima is a scholar working on Astronomy and Astrophysics, Organic Chemistry and Molecular Biology. According to data from OpenAlex, M. Kojima has authored 215 papers receiving a total of 4.6k indexed citations (citations by other indexed papers that have themselves been cited), including 69 papers in Astronomy and Astrophysics, 62 papers in Organic Chemistry and 26 papers in Molecular Biology. Recurrent topics in M. Kojima's work include Solar and Space Plasma Dynamics (57 papers), Ionosphere and magnetosphere dynamics (49 papers) and Catalytic C–H Functionalization Methods (43 papers). M. Kojima is often cited by papers focused on Solar and Space Plasma Dynamics (57 papers), Ionosphere and magnetosphere dynamics (49 papers) and Catalytic C–H Functionalization Methods (43 papers). M. Kojima collaborates with scholars based in Japan, United States and India. M. Kojima's co-authors include Shigeki Matsunaga, Tatsuhiko Yoshino, Motomu Kanai, M. Tokumaru, Seiya Fukagawa, A. Yokobe, B. V. Jackson, Yoshimi Kato, Paul Hick and Ryō Tanaka and has published in prestigious journals such as Journal of the American Chemical Society, Physical Review Letters and Angewandte Chemie International Edition.

In The Last Decade

M. Kojima

210 papers receiving 4.5k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
M. Kojima 2.2k 1.5k 817 483 399 215 4.6k
Takashi Ishihara 2.5k 1.2× 297 0.2× 601 0.7× 641 1.3× 26 0.1× 237 5.1k
Johannes Kästner 1.4k 0.6× 547 0.4× 883 1.1× 2.1k 4.3× 18 0.0× 257 7.8k
Yasuo Yamamoto 630 0.3× 791 0.5× 94 0.1× 441 0.9× 2.7k 6.8× 231 5.0k
Umpei Nagashima 1.1k 0.5× 54 0.0× 505 0.6× 603 1.2× 46 0.1× 290 5.4k
Oleg Lebedev 558 0.3× 1.8k 1.2× 79 0.1× 133 0.3× 3.3k 8.3× 186 4.5k
Takashi Ichikawa 845 0.4× 3.1k 2.0× 195 0.2× 354 0.7× 372 0.9× 142 5.0k
Toshiyuki Sasaki 264 0.1× 1.2k 0.8× 147 0.2× 105 0.2× 257 0.6× 160 2.7k
Pascal Pernot 194 0.1× 492 0.3× 204 0.2× 275 0.6× 16 0.0× 131 2.7k
Fei He 139 0.1× 711 0.5× 29 0.0× 890 1.8× 251 0.6× 284 3.9k
R Mills 143 0.1× 550 0.4× 91 0.1× 64 0.1× 1.2k 2.9× 108 3.5k

Countries citing papers authored by M. Kojima

Since Specialization
Citations

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

Fields of papers citing papers by M. Kojima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of M. Kojima

This figure shows the co-authorship network connecting the top 25 collaborators of M. Kojima. A scholar is included among the top collaborators of M. Kojima 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 M. Kojima. M. Kojima 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.
Karimov, Rashad R., et al.. (2024). Substitution, Elimination, and Integration of Methyl Groups in Terpenes Initiated by C–H Bond Functionalization. ACS Central Science. 10(11). 2016–2027. 4 indexed citations
3.
Kojima, M., Yuki Nagashima, Ken Tanaka, et al.. (2023). An Electron‐Deficient CpE Iridium(III) Catalyst: Synthesis, Characterization, and Application to Ether‐Directed C−H Amidation. Angewandte Chemie International Edition. 62(21). e202301259–e202301259. 9 indexed citations
4.
Kawai, Kentaro, Kazuki Ikeda, Akane Sato, et al.. (2022). 1,2-Disubstituted 1,2-Dihydro-1,2,4,5-tetrazine-3,6-dione as a Dynamic Covalent Bonding Unit at Room Temperature. Journal of the American Chemical Society. 144(3). 1370–1379. 15 indexed citations
5.
Sekine, Daichi, M. Kojima, Yuki Nagashima, et al.. (2022). Native Amide‐Directed C(sp3)−H Amidation Enabled by Electron‐Deficient RhIII Catalyst and Electron‐Deficient 2‐Pyridone Ligand. Angewandte Chemie International Edition. 61(52). e202213659–e202213659. 16 indexed citations
6.
Yoshino, Tatsuhiko, et al.. (2019). Cobalt‐Catalyzed Allylic Alkylation Enabled by Organophotoredox Catalysis. Angewandte Chemie International Edition. 58(27). 9199–9203. 67 indexed citations
7.
Kimura, Atsushi, et al.. (2012). Histological Investigation of Resected Dura Mater Attached to Spinal Meningioma. Spine. 37(22). E1398–E1401. 23 indexed citations
8.
Tokumaru, M., et al.. (2011). Three-Dimensional Solar Wind Structures Obtained with MHD Simulation Model Using Observation-Based Time-Varying Inner Boundary Map. ASPC. 444. 111. 5 indexed citations
9.
Takeuchi, Masaru, et al.. (2011). Evaluation and application of Thermoresponsive Gel handling towards manipulation of single cells. 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems. 4 indexed citations
10.
Kojima, M., et al.. (2008). A Study on Phased Array Antenna Using Bi-layered MSA. European Conference on Antennas and Propagation. 108(311). 1285–1288. 2 indexed citations
11.
Jackson, B. V., A. Buffington, P. P. Hick, M. Kojima, & M. Tokumaru. (2004). Comparison of Solar Mass Ejection Imager (SMEI) White Light Observations with IPS Velocity. AGUFM. 2004. 1 indexed citations
12.
Tokumaru, M., et al.. (2004). Three-dimensional structure of compound interplanetary transients associated with 27-28 May 2003 coronal mass ejections. AGU Fall Meeting Abstracts. 2004. 1 indexed citations
13.
Kuwabara, T., K. Munakata, S. Yasue, et al.. (2004). Geometry of Interplanetary CME Deduced from Cosmic Rays. AGUFM. 2004. 1 indexed citations
14.
Kojima, M., M. Tokumaru, K. Fujiki, et al.. (2003). The Relation Between the Solar Wind Velocity and the Magnetic Conditions of Coronal Holes. AGUFM. 2003. 1 indexed citations
15.
Kojima, M., et al.. (2002). CMPSc: A Continuation Method for Polynomial Systems (C++ Version).
16.
Kikkawa, Fumitaka, M. Kojima, Osamu Maeda, et al.. (1993). Potentiating effect of amphotericin B on five platinum anticancer drugs in human cis-diamminedichloroplatinum (II) sensitive and resistant ovarian carcinoma cells.. PubMed. 13(4). 891–6. 12 indexed citations
17.
Kojima, M. & Romesh Saigal. (1980). A property of matrices with positive determinants. Linear Algebra and its Applications. 30. 1–8. 3 indexed citations
18.
Kakinuma, Takakiyo, Akira Watanabe, Haruichi Washimi, & M. Kojima. (1979). Observations of Interplanetary Scintillation. Kagoshima Kenritsu Tanki Daigaku Chiiki Kenkyūjo kenkyū nenpō. 365. 37. 3 indexed citations
19.
Kojima, M. & J. Alan Wagar. (1972). Computer-Generated Drawings of Ground Form and Vegetation. Journal of Forestry. 70(5). 282–285. 2 indexed citations
20.
Saito, Toshikazu, et al.. (1964). An autopsy case of Sézary's reticulosis.. PubMed. 11(1). 1–23. 2 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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