Kojiro Imai

1.1k total citations · 1 hit paper
21 papers, 681 citations indexed

About

Kojiro Imai is a scholar working on Radiology, Nuclear Medicine and Imaging, Ophthalmology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Kojiro Imai has authored 21 papers receiving a total of 681 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Radiology, Nuclear Medicine and Imaging, 7 papers in Ophthalmology and 6 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Kojiro Imai's work include Corneal Surgery and Treatments (7 papers), Corneal surgery and disorders (7 papers) and Ocular Surface and Contact Lens (6 papers). Kojiro Imai is often cited by papers focused on Corneal Surgery and Treatments (7 papers), Corneal surgery and disorders (7 papers) and Ocular Surface and Contact Lens (6 papers). Kojiro Imai collaborates with scholars based in Japan, Indonesia and Germany. Kojiro Imai's co-authors include Shigeru Kinoshita, Morio Ueno, Chie Sotozono, Satoshi Teramukai, Naoki Okumura, Junji Hamuro, Hiroshi Tanaka, John Bush, Noriko Koizumi and Munetoyo Toda and has published in prestigious journals such as New England Journal of Medicine, PLoS ONE and Scientific Reports.

In The Last Decade

Kojiro Imai

21 papers receiving 673 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Injection of Cultured Cells with a ROCK Inhibitor for Bullous Keratopathy

2018 354 citations Shigeru Kinoshita, Noriko Koizumi et al. New England Journal of Medicine profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kojiro Imai Japan	9	502	308	173	160	39	21	681
Ulrich Welge‐Luessen Germany	12	296 0.6×	405 1.3×	75 0.4×	146 0.9×	50 1.3×	22	551
Jorge Zárate Argentina	10	267 0.5×	299 1.0×	89 0.5×	53 0.3×	26 0.7×	30	477
R P Wilson United States	10	396 0.8×	513 1.7×	100 0.6×	88 0.6×	73 1.9×	11	653
Sigrid Roters Germany	17	499 1.0×	529 1.7×	141 0.8×	78 0.5×	61 1.6×	50	736
Julia Song United States	9	201 0.4×	309 1.0×	66 0.4×	62 0.4×	60 1.5×	23	474
Marcus Lim Singapore	13	442 0.9×	645 2.1×	60 0.3×	105 0.7×	38 1.0×	25	732
Theofilos Tourtas Germany	21	1.5k 2.9×	1.2k 3.9×	203 1.2×	116 0.7×	18 0.5×	61	1.6k
Alessandra Mastropasqua Italy	20	662 1.3×	753 2.4×	244 1.4×	97 0.6×	17 0.4×	33	949
Chryssanthi Koutsandrea Greece	15	317 0.6×	447 1.5×	40 0.2×	96 0.6×	30 0.8×	48	606
P H Constable United Kingdom	7	237 0.5×	258 0.8×	73 0.4×	57 0.4×	18 0.5×	10	384

Countries citing papers authored by Kojiro Imai

Since Specialization

Citations

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

Fields of papers citing papers by Kojiro Imai

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kojiro Imai

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

Kinoshita, Shigeru, Morio Ueno, Munetoyo Toda, et al.. (2025). Long-term Corneal Rejuvenation after Transplantation of Cultured Human Corneal Endothelial Cells. Ophthalmology. 132(10). 1105–1113. 3 indexed citations

Imai, Kojiro, et al.. (2025). Assessment of the official national insurance coverage of regenerative medical products for ophthalmic diseases in Japan following regulatory approval. Regenerative Therapy. 30. 384–388. 1 indexed citations

Ueno, Morio, Kojiro Imai, Takanori Kameda, et al.. (2024). Comprehensive combined analysis of physician-initiated phase II and III clinical trials on a cultured human corneal endothelial cell product for treating bullous keratopathy. Japanese Journal of Ophthalmology. 68(6). 660–668. 3 indexed citations

Imai, Kojiro, Koji Kitazawa, Ratna Sitompul, et al.. (2023). Strategic combination of cultivated oral mucosal epithelial transplantation and postoperative limbal-rigid contact lens-wear for end-stage ocular surface disease: a retrospective cohort study. British Journal of Ophthalmology. 108(8). 1177–1183. 3 indexed citations

Imai, Kojiro, Isao Yokota, Kei Fujikawa, et al.. (2023). A Multicenter Prospective Interventional Trial of Therapeutic Angiogenesis Using Bone Marrow-Derived Mononuclear Cell Implantation for Patients With Critical Limb-Threatening Ischemia Caused by Thromboangiitis Obliterans. Circulation Journal. 87(9). 1229–1237. 5 indexed citations

Nakanishi, Naohiko, Isao Yokota, Kojiro Imai, et al.. (2022). Clot-regression effects of rivaroxaban in venous thromboembolism treatment in cancer patients—a prospective interventional study. Scientific Reports. 12(1). 21569–21569. 2 indexed citations

Ikeda, Yoko, Kazuhiko Mori, Morio Ueno, et al.. (2021). Seasonal Variation and Trend of Intraocular Pressure Decrease Over a 20-Year Period in Normal-Tension Glaucoma Patients. American Journal of Ophthalmology. 234. 235–240. 6 indexed citations

Ueno, Morio, Munetoyo Toda, Hiroshi Tanaka, et al.. (2021). Superiority of Mature Differentiated Cultured Human Corneal Endothelial Cell Injection Therapy for Corneal Endothelial Failure. American Journal of Ophthalmology. 237. 267–277. 25 indexed citations

Sotozono, Chie, Tsutomu Inatomi, Takahiro Nakamura, et al.. (2020). Oral Mucosal Epithelial Transplantation and Limbal-Rigid Contact Lens: A Therapeutic Modality for the Treatment of Severe Ocular Surface Disorders. Cornea. 39(1). S19–S27. 9 indexed citations

10.

Shiraishi, Hirokazu, Satoshi Teramukai, Kojiro Imai, et al.. (2020). Establishment of optimal exercise therapy using near-infrared spectroscopy monitoring of tissue muscle oxygenation after therapeutic angiogenesis for patients with critical limb ischemia: A multicenter, randomized, controlled trial. Contemporary Clinical Trials Communications. 17. 100542–100542. 2 indexed citations

11.

Ueta, Mayumi, Ken Ogino, Eriko Sumi, et al.. (2020). Clinical trial to evaluate the therapeutic benefits of limbal-supported contact lens wear for ocular sequelae due to Stevens-Johnson syndrome/toxic epidermal necrolysis. Contact Lens and Anterior Eye. 43(6). 535–542. 11 indexed citations

12.

Nakanishi, Naohiko, Isao Yokota, Kojiro Imai, et al.. (2019). Clot regression effects of rivaroxaban in the treatment of venous thromboembolism in patients with cancer (CRERIT-VTE cancer): study protocol. BMJ Open. 9(11). e031698–e031698. 2 indexed citations

13.

Kinoshita, Shigeru, Noriko Koizumi, Morio Ueno, et al.. (2018). Injection of Cultured Cells with a ROCK Inhibitor for Bullous Keratopathy. New England Journal of Medicine. 378(11). 995–1003. 354 indexed citations breakdown →

14.

Imai, Kojiro, Junko Takahashi, Kazuhiko Mori, et al.. (2014). Evaluation of reading speed ability in glaucoma patients with central visual field defects. Investigative Ophthalmology & Visual Science. 55(13). 161–161. 1 indexed citations

15.

Nakano, Masakazu, Yoko Ikeda, Yuichi Tokuda, et al.. (2014). Novel common variants and susceptible haplotype for exfoliation glaucoma specific to Asian population. Scientific Reports. 4(1). 5340–5340. 17 indexed citations

16.

Nakano, Masakazu, Yoko Ikeda, Yuichi Tokuda, et al.. (2012). Common Variants in CDKN2B-AS1 Associated with Optic-Nerve Vulnerability of Glaucoma Identified by Genome-Wide Association Studies in Japanese. PLoS ONE. 7(3). e33389–e33389. 68 indexed citations

17.

Watanabe, Akihide, Kojiro Imai, & Shigeru Kinoshita. (2012). Impact of high myopia and duration of hard contact lens wear on the progression of ptosis. Japanese Journal of Ophthalmology. 57(2). 206–210. 3 indexed citations

18.

Matsuda, Akira, Nobuyuki Ebihara, Kojiro Imai, et al.. (2012). Involvement of Plasminogen Activator Inhibitor-1 in the Pathogenesis of Atopic Cataracts. Investigative Ophthalmology & Visual Science. 53(4). 1846–1846. 9 indexed citations

19.

Mori, Kazuhiko, Kojiro Imai, Akira Matsuda, et al.. (2008). LOXL1 genetic polymorphisms are associated with exfoliation glaucoma in the Japanese population.. PubMed. 14. 1037–40. 61 indexed citations

20.

Imai, Kojiro, et al.. (2008). [Active systemic steroid therapy employed in a case of bilateral frosted branch angiitis with acute chorioretinal circulatory insufficiency].. PubMed. 112(11). 999–1005. 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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