Keiji Kojima
- Surgery
- Pulmonary and Respiratory Medicine
- Psychiatry and Mental health
- Endocrinology, Diabetes and Metabolism
- Urology top 5%
- Co-authors
- Hiro‐omi KanayamaAkira NumataStephen QuinnJerzy SzumowskiRobert C. SheleyDaisuke MiyamotoMotoi OishiKazunori Kimura
- Topics
- Sexual function and dysfunction studies (9 papers)Hormonal and reproductive studies (5 papers)Groundwater flow and contamination studies (5 papers)
- Partner nations
- JapanUnited StatesUnited Kingdom
In The Last Decade
Keiji Kojima
50 papers receiving 507 citations
Peers
Comparison fields: 5 of 102
- Surgery 150
- Pulmonary and Respiratory Medicine 117
- Psychiatry and Mental health 88
- Endocrinology, Diabetes and Metabolism 76
- Urology 75
Countries citing papers authored by Keiji Kojima
This map shows the geographic impact of Keiji 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 Keiji Kojima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Keiji Kojima more than expected).
Fields of papers citing papers by Keiji Kojima
This network shows the impact of papers produced by Keiji 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 Keiji Kojima. The network helps show where Keiji Kojima may publish in the future.
Co-authorship network of co-authors of Keiji Kojima
This figure shows the co-authorship network connecting the top 25 collaborators of Keiji Kojima. A scholar is included among the top collaborators of Keiji 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 Keiji Kojima. Keiji Kojima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 1 | |
| 2 | 1 | |
| 3 | Color Restoration Methods for Scanned Book Images | 0 |
| 4 | J-027 Distortion Correction Method for Scanned Book English Images | 0 |
| 5 | 19 | |
| 6 | Image Correction Method for Scanned Book Images Using Ruled Lines and Characters | 0 |
| 7 | 0 | |
| 8 | 4 | |
| 9 | 28 | |
| 10 | 3 | |
| 11 | 3 | |
| 12 | 4 | |
| 13 | 1 | |
| 14 | 19 | |
| 15 | 55 | |
| 16 | 4 | |
| 17 | 9 | |
| 18 | 14 | |
| 19 | Hydropulse Tomography for Identifying 3-D Permeability Distribution | 22 |
| 20 | Distribution And Engineering Properties of Weak Rocks In Japan | 7 |
About Keiji Kojima
Keiji Kojima is a scholar working on Urology, Psychiatry and Mental health and Ocean Engineering, having authored 60 papers that have together received 551 indexed citations. Recurring topics across this work include Sexual function and dysfunction studies (9 papers), Hormonal and reproductive studies (5 papers) and Groundwater flow and contamination studies (5 papers). The work is most often cited by research in Urology (75 citations), Psychiatry and Mental health (88 citations) and Endocrinology, Diabetes and Metabolism (76 citations). Keiji Kojima has collaborated with scholars based in Japan, United States and United Kingdom. Frequent co-authors include Hiro‐omi Kanayama, Akira Numata, Stephen Quinn, Jerzy Szumowski, Robert C. Sheley, Daisuke Miyamoto, Motoi Oishi, Kazunori Kimura, Hiroyuki Tosaka and Yukio Nagasaki. Their work appears in journals such as Cancer, Langmuir and Radiology.
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.