Kunio Okamoto

2.3k total citations
158 papers, 1.8k citations indexed

About

Kunio Okamoto is a scholar working on Organic Chemistry, Physical and Theoretical Chemistry and Spectroscopy. According to data from OpenAlex, Kunio Okamoto has authored 158 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 115 papers in Organic Chemistry, 52 papers in Physical and Theoretical Chemistry and 42 papers in Spectroscopy. Recurrent topics in Kunio Okamoto's work include Chemical Reaction Mechanisms (59 papers), Chemical Reactions and Mechanisms (33 papers) and Analytical Chemistry and Chromatography (20 papers). Kunio Okamoto is often cited by papers focused on Chemical Reaction Mechanisms (59 papers), Chemical Reactions and Mechanisms (33 papers) and Analytical Chemistry and Chromatography (20 papers). Kunio Okamoto collaborates with scholars based in Japan, Germany and United States. Kunio Okamoto's co-authors include Kôichi Komatsu, Ken’ichi Takeuchi, Haruo Shingu, Kazuhiko Nakagawa, Isamu Okamoto, Tomomi Kinoshita, Kiyoko Kuwata, Haruka Yamaguchi, Toshikazu Kitagawa and Ken Takezawa and has published in prestigious journals such as Journal of the American Chemical Society, Journal of Clinical Oncology and SHILAP Revista de lepidopterología.

In The Last Decade

Kunio Okamoto

149 papers receiving 1.7k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kunio Okamoto Japan	22	959	350	322	320	286	158	1.8k
Yoshito Takeuchi Japan	28	1.1k 1.2×	538 1.5×	204 0.6×	298 0.9×	462 1.6×	243	3.1k
Max Schmidt Germany	29	2.3k 2.4×	277 0.8×	198 0.6×	677 2.1×	219 0.8×	273	3.8k
Marcel Müller Germany	20	550 0.6×	840 2.4×	76 0.2×	269 0.8×	203 0.7×	44	2.5k
Shoji Eguchi Japan	30	2.9k 3.1×	831 2.4×	189 0.6×	102 0.3×	318 1.1×	374	4.3k
Marino Nicolini Italy	23	854 0.9×	302 0.9×	101 0.3×	817 2.6×	176 0.6×	89	2.1k
Alberto Marini Italy	25	394 0.4×	950 2.7×	199 0.6×	351 1.1×	163 0.6×	88	2.5k
José Pérez Spain	32	1.6k 1.7×	613 1.8×	179 0.6×	1.4k 4.2×	164 0.6×	165	3.4k
Walter Wolf United States	24	344 0.4×	297 0.8×	47 0.1×	480 1.5×	131 0.5×	106	1.7k
Wolfdieter A. Schenk Germany	26	1.7k 1.7×	267 0.8×	88 0.3×	462 1.4×	37 0.1×	145	2.9k
R. C. Elder United States	34	1.3k 1.4×	295 0.8×	140 0.4×	1.2k 3.8×	90 0.3×	109	3.3k

Countries citing papers authored by Kunio Okamoto

Since Specialization

Citations

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

Fields of papers citing papers by Kunio Okamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kunio Okamoto

This figure shows the co-authorship network connecting the top 25 collaborators of Kunio Okamoto. A scholar is included among the top collaborators of Kunio Okamoto 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 Kunio Okamoto. Kunio Okamoto 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

Colvin, Hugh Shunsuke, Akira Nakanishi, Kenji Yamauchi, et al.. (2024). Risk factors for postgastric endoscopic submucosal dissection bleeding in direct oral anticoagulant users. Digestive Endoscopy. 36(10). 1130–1139.

Ninomiya, Kiichiro, Daisuke Ennishi, Kunio Okamoto, et al.. (2024). Response to Imatinib in a Patient With Gastric Adenocarcinoma With KIT Q556_K558 In-Frame Deletion: A Case Report. JCO Precision Oncology. 8(8). e2400228–e2400228.

Shimizu, Toshio, Kazuto Nishio, Kazuko Sakai, et al.. (2020). Phase I safety and pharmacokinetic study of YM155, a potent selective survivin inhibitor, in combination with erlotinib in patients with EGFR TKI refractory advanced non-small cell lung cancer. Cancer Chemotherapy and Pharmacology. 86(2). 211–219. 22 indexed citations

Okamoto, Kunio, et al.. (2017). Gastrointestinal perforation related to lenvatinib, an anti-angiogenic inhibitor that targets multiple receptor tyrosine kinases, in a patient with metastatic thyroid cancer. Investigational New Drugs. 36(2). 350–353. 12 indexed citations

Yoshioka, Hiroshige, Koji Haratani, Hidetoshi Hayashi, et al.. (2017). P3.02a-005 The Association between the Percentage of Anaplastic Lymphoma Kinase(ALK)-Positive Cells and Efficacy of ALK Inhibitor. Journal of Thoracic Oncology. 12(1). S1162–S1162. 2 indexed citations

Taguri, Masataka, et al.. (2016). Retrospective study of unplanned hospital admission for metastatic cancer patients visiting the emergency department. Supportive Care in Cancer. 25(5). 1409–1415. 8 indexed citations

Watanabe, Satomi, Hidetoshi Hayashi, Kunio Okamoto, et al.. (2016). Progression-Free and Overall Survival of Patients With ALK Rearrangement–Positive Non–Small Cell Lung Cancer Treated Sequentially With Crizotinib and Alectinib. Clinical Lung Cancer. 17(6). 528–534. 25 indexed citations

Tsurutani, Junji, Katsumasa Kuroi, Tsutomu Iwasa, et al.. (2015). Phase I study of weekly nab‐paclitaxel combined with S‐1 in patients with human epidermal growth factor receptor type 2‐negative metastatic breast cancer. Cancer Science. 106(6). 734–739. 9 indexed citations

Nonagase, Yoshikane, Kunio Okamoto, Tsutomu Iwasa, et al.. (2015). Afatinib-refractory brain metastases from EGFR-mutant non-small-cell lung cancer successfully controlled with erlotinib. Anti-Cancer Drugs. 27(3). 251–253. 3 indexed citations

10.

Togashi, Yosuke, Hidetoshi Hayashi, Kunio Okamoto, et al.. (2015). Chronic nicotine exposure mediates resistance to EGFR-TKI in EGFR -mutated lung cancer via an EGFR signal. Lung Cancer. 88(1). 16–23. 28 indexed citations

11.

Fujisaka, Yasuhito, Takayasu Kurata, Kaoru Tanaka, et al.. (2014). Phase I study of amatuximab, a novel monoclonal antibody to mesothelin, in Japanese patients with advanced solid tumors. Investigational New Drugs. 33(2). 380–388. 37 indexed citations

12.

Kidera, Yasuhiro, Hisato Kawakami, Kunio Okamoto, et al.. (2014). Risk Factors for Cisplatin-Induced Nephrotoxicity and Potential of Magnesium Supplementation for Renal Protection. PLoS ONE. 9(7). e101902–e101902. 93 indexed citations

13.

Okamoto, Kunio, Isamu Okamoto, Masaki Miyazaki, et al.. (2013). Bronchoscopic findings for bevacizumab-related pulmonary hemorrhage in advanced non–small cell lung cancer. Investigational New Drugs. 31(5). 1364–1366. 1 indexed citations

14.

Okamoto, Isamu, Tokuzo Arao, Masaki Miyazaki, et al.. (2012). Clinical phase I study of elpamotide, a peptide vaccine for vascular endothelial growth factor receptor 2, in patients with advanced solid tumors. Cancer Science. 103(12). 2135–2138. 13 indexed citations

15.

Okamoto, Kunio, Isamu Okamoto, Erina Hatashita, et al.. (2011). Overcoming Erlotinib Resistance in EGFR Mutation–Positive Non–Small Cell Lung Cancer Cells by Targeting Survivin. Molecular Cancer Therapeutics. 11(1). 204–213. 59 indexed citations

16.

Tanizaki, Junko, Isamu Okamoto, Kunio Okamoto, et al.. (2011). MET Tyrosine Kinase Inhibitor Crizotinib (PF-02341066) Shows Differential Antitumor Effects in Non-small Cell Lung Cancer According to MET Alterations. Journal of Thoracic Oncology. 6(10). 1624–1631. 103 indexed citations

17.

Okamoto, Wataru, Isamu Okamoto, Takeshi Yoshida, et al.. (2010). Identification of c-Src as a Potential Therapeutic Target for Gastric Cancer and of MET Activation as a Cause of Resistance to c-Src Inhibition. Molecular Cancer Therapeutics. 9(5). 1188–1197. 58 indexed citations

18.

Okamoto, Kunio, Isamu Okamoto, Wataru Okamoto, et al.. (2010). Role of Survivin in EGFR Inhibitor–Induced Apoptosis in Non–Small Cell Lung Cancers Positive for EGFR Mutations. Cancer Research. 70(24). 10402–10410. 75 indexed citations

19.

Okamoto, Kunio, Ken’ichi Takeuchi, & Haruo Shingu. (1964). Kinetic Studies of Solvolysis. IX. The SNl-type Cleavage of t-Butyl p-Substituted-phenyl Ethers and Optically-active α-Phenethyl Phenyl Ether by Hydrogen Halides in a Phenol-Dioxane Solvent. Bulletin of the Chemical Society of Japan. 37(2). 276–282. 4 indexed citations

20.

Okamoto, Kunio, et al.. (1960). Kinetic Studies on Solvolysis. V. Nucleophilic Substitution of tert-Butyl and Aralkyl Halides in Phenolic Solvents. Nippon kagaku zassi. 81(1). 111–121. 3 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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