Takashi Ohshima

17.7k total citations
302 papers, 8.8k citations indexed

About

Takashi Ohshima is a scholar working on Organic Chemistry, Inorganic Chemistry and Molecular Biology. According to data from OpenAlex, Takashi Ohshima has authored 302 papers receiving a total of 8.8k indexed citations (citations by other indexed papers that have themselves been cited), including 161 papers in Organic Chemistry, 73 papers in Inorganic Chemistry and 70 papers in Molecular Biology. Recurrent topics in Takashi Ohshima's work include Asymmetric Synthesis and Catalysis (64 papers), Asymmetric Hydrogenation and Catalysis (62 papers) and Synthetic Organic Chemistry Methods (49 papers). Takashi Ohshima is often cited by papers focused on Asymmetric Synthesis and Catalysis (64 papers), Asymmetric Hydrogenation and Catalysis (62 papers) and Synthetic Organic Chemistry Methods (49 papers). Takashi Ohshima collaborates with scholars based in Japan, United States and France. Takashi Ohshima's co-authors include Masakatsu Shibasaki, Kazushi Mashima, Hiroyuki Morimoto, Tetsuhiro Nemoto, Ryo Yazaki, Ryo Takita, Shigeki Matsunaga, Tomoyuki Shibuguchi, Takanori Iwasaki and Kazuhiro Morisaki and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of the American Chemical Society and Angewandte Chemie International Edition.

In The Last Decade

Takashi Ohshima

284 papers receiving 8.7k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Takashi Ohshima Japan 58 7.0k 2.9k 2.2k 565 508 302 8.8k
Gerhard Raabe Germany 60 11.3k 1.6× 2.9k 1.0× 2.2k 1.0× 281 0.5× 732 1.4× 381 12.8k
Yujiro Hayashi Japan 63 14.6k 2.1× 3.1k 1.1× 4.0k 1.8× 569 1.0× 436 0.9× 324 16.4k
Ian J. S. Fairlamb United Kingdom 53 7.2k 1.0× 1.7k 0.6× 1.6k 0.7× 344 0.6× 1.1k 2.1× 217 9.0k
Paul J. Reider United States 52 6.9k 1.0× 1.6k 0.6× 2.4k 1.1× 538 1.0× 543 1.1× 201 8.4k
Richard Mynott Germany 46 6.1k 0.9× 2.6k 0.9× 931 0.4× 233 0.4× 509 1.0× 212 7.0k
Thomas Wirth United Kingdom 68 11.9k 1.7× 2.3k 0.8× 1.4k 0.6× 1.6k 2.9× 833 1.6× 333 14.5k
George W. Kabalka United States 50 7.1k 1.0× 1.4k 0.5× 1.9k 0.8× 391 0.7× 881 1.7× 468 9.8k
Reinhard W. Hoffmann Germany 51 11.0k 1.6× 1.8k 0.6× 2.6k 1.2× 208 0.4× 457 0.9× 403 12.7k
Guy C. Lloyd‐Jones United Kingdom 61 10.8k 1.5× 3.3k 1.2× 1.8k 0.8× 363 0.6× 1.3k 2.6× 219 12.6k
Patrick J. Guiry Ireland 44 8.1k 1.2× 3.2k 1.1× 1.9k 0.8× 246 0.4× 226 0.4× 199 9.5k

Countries citing papers authored by Takashi Ohshima

Since Specialization
Citations

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

Fields of papers citing papers by Takashi Ohshima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takashi Ohshima

This figure shows the co-authorship network connecting the top 25 collaborators of Takashi Ohshima. A scholar is included among the top collaborators of Takashi Ohshima 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 Takashi Ohshima. Takashi Ohshima 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
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Yazaki, Ryo, et al.. (2023). α,β-Dehydroamino Acid Synthesis through Proline-Catalyzed Aldol Condensation with a Glycine Schiff Base. SHILAP Revista de lepidopterología. 2(1). 14–20. 2 indexed citations
4.
Shimauchi, Tsukasa, Takuro Numaga‐Tomita, Yuri Kato, et al.. (2022). A TRPC3/6 Channel Inhibitor Promotes Arteriogenesis after Hind-Limb Ischemia. Cells. 11(13). 2041–2041. 3 indexed citations
5.
Hamada, Mareomi, Yuji Shigematsu, Taishi Kuwahara, et al.. (2021). Predicting the Clinical Course in Hypertrophic Cardiomyopathy Using Thallium-201 Myocardial Scintigraphy. ESC Heart Failure. 8(2). 1378–1387. 4 indexed citations
6.
Hamada, Mareomi, Yuji Shigematsu, Shuntaro Ikeda, Takashi Ohshima, & Akiyoshi Ogimoto. (2021). Impact of Cibenzoline Treatment on Left Ventricular Remodelling and Prognosis in Hypertrophic Obstructive Cardiomyopathy. ESC Heart Failure. 8(6). 4832–4842. 7 indexed citations
7.
Yamamoto, Yumi, Jun Arai, Yohei Saito, et al.. (2016). Isomeric iodinated analogs of nimesulide: Synthesis, physicochemical characterization, cyclooxygenase-2 inhibitory activity, and transport across Caco-2 cells. Bioorganic & Medicinal Chemistry. 24(16). 3727–3733. 9 indexed citations
8.
Ohshima, Takashi, et al.. (2014). A patient with takotsubo cardiomyopathy with left ventricular rupture induced by systolic pressure gradient within the left ventricular cavity. 46(11). 1476–1482. 1 indexed citations
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Das, Kalpataru, et al.. (2011). Platinum‐Catalyzed Direct Amination of Allylic Alcohols with Aqueous Ammonia: Selective Synthesis of Primary Allylamines. Angewandte Chemie International Edition. 51(1). 150–154. 93 indexed citations
11.
Ohshima, Kousei, Kousei Ohshima, Shuntaro Ikeda, et al.. (2010). Cavity volume of ruptured plaque is an independent predictor for angiographic no-reflow phenomenon during primary angioplasty in patients with ST-segment elevation myocardial infarction. Journal of Cardiology. 57(1). 36–43. 9 indexed citations
12.
Ohshima, Takashi, Takanori Iwasaki, & Kazushi Mashima. (2009). Development of Environmentally Benign Catalytic Reactions Using Tetranuclear Zinc Clusters. Journal of Synthetic Organic Chemistry Japan. 67(5). 494–506. 1 indexed citations
13.
Ohshima, Kousei, et al.. (2008). Impact of Plaque Composition on Slow flow/No Reflow Phenomena in Patients with Acute Reperfused Myocardial Infarction-Virtual Histology IVUS Analysis-. Circulation. 72. 257. 1 indexed citations
14.
Sato, Tsutomu, Roppei Yamada, Naoto Yamamoto, et al.. (2007). A Case of Granulocyte-Colony Stimulating Factor Producing Gastric Cancer. The Japanese Journal of Gastroenterological Surgery. 40(2). 169–174. 3 indexed citations
15.
Ohtsuka, Tomoaki, Katsuji Inoue, Yuji Hara, et al.. (2005). Serum Markers of Angiogenesis and Myocardial Ultrasonic Tissue Characterization in Patients with Dilated Cardiomyopathy. European Journal of Heart Failure. 7(4). 689–695. 19 indexed citations
16.
Hamada, Mareomi, Yuji Shigematsu, Yuji Hara, et al.. (2003). Relationship between Myocardial Fibrosis Using Gadolinium-DTPA Enhanced Magnetic Resonance Imaging and Left Ventricular Function in Hypertrophic Cardiomyopathy. Japanese Circulation Journal-english Edition. 67. 391. 5 indexed citations
17.
Hara, Yuji, Mareomi Hamada, Yuji Shigematsu, et al.. (2002). Insulin resistance and tumor necrosis factor- α in patients with dilated cardiomyopathy : effect of beta-blocker. Japanese Circulation Journal-english Edition. 66. 390. 4 indexed citations
18.
Saeki, Hideyuki, Mareomi Hamada, Yuji Shigematsu, et al.. (2002). Increased Circulating Levels of Procollagen Peptides in Patients with Hypertrophic Cardiomyopathy. Japanese Circulation Journal-english Edition. 66. 323.
19.
Karasawa, Fujio, et al.. (2001). Deflationary Phenomenon of the Nitrous Oxide-Filled Endotracheal Tube Cuff After Cessation of Nitrous Oxide Administration. Anesthesia & Analgesia. 92(1). 145–148. 18 indexed citations
20.
Nicolaou, K. C., Nicolas Winssinger, Dionisios Vourloumis, et al.. (1999). Total synthesis of sarcodictyins A and B: Solid- and solution-phase synthesis and biological evaluation of combinatorial sarcodictyin libraries. 12(14). 1006–1012.

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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