Koichiro Kumai

3.9k total citations
157 papers, 3.2k citations indexed

About

Koichiro Kumai is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Oncology. According to data from OpenAlex, Koichiro Kumai has authored 157 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 82 papers in Pulmonary and Respiratory Medicine, 57 papers in Surgery and 50 papers in Oncology. Recurrent topics in Koichiro Kumai's work include Gastric Cancer Management and Outcomes (70 papers), Gastrointestinal Tumor Research and Treatment (33 papers) and Metastasis and carcinoma case studies (31 papers). Koichiro Kumai is often cited by papers focused on Gastric Cancer Management and Outcomes (70 papers), Gastrointestinal Tumor Research and Treatment (33 papers) and Metastasis and carcinoma case studies (31 papers). Koichiro Kumai collaborates with scholars based in Japan, United States and Switzerland. Koichiro Kumai's co-authors include Tetsuro Kubota, Masaki Kitajima, Yoshihide Otani, Yoshiro Saikawa, Masahiro Ohgami, Toshiharu Furukawa, Yuko Kitagawa, Makio Mukai, Kaori Kameyama and Masashi Yoshida and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and Annals of the New York Academy of Sciences.

In The Last Decade

Koichiro Kumai

149 papers receiving 3.0k citations

Peers

Countries citing papers authored by Koichiro Kumai

Since Specialization

Citations

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

Fields of papers citing papers by Koichiro Kumai

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichiro Kumai

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

#	Work	Indexed citations
1	Endoscopic biliary drainage as a bridging procedure to single-stage surgery for perforated choledochal cyst: a case report and review of the literature 2015 ·Surgical Case Reports ·(unknown), Shoichi Dowaki, (unknown), Koji Fujita, Kei‐ichi Ishikawa, (unknown), Tadayuki Sakuragawa, (unknown), Hiroshi Miura, Koichiro Kumai, Shuji Mikami, Yuko Kitagawa	10
2	NOVEL TECHNIQUE OF ENDOSCOPIC SUBMUCOSAL DISSECTION USING AN EXTERNAL GRASPING FORCEPS FOR SUPERFICIAL GASTRIC NEOPLASIA 2009 ·Digestive Endoscopy ·Hiroyuki Imaeda, Naoki Hosoe, Yosuke Ida∥, Kazuhiro Kashiwagi, Yuichi Morohoshi, Kazuhiro Suganuma, (unknown), (unknown), Hidekazu Suzuki, Yoshimasa Saito, Koichi Aiura, Haruhiko Ogata, Yasushi Iwao, Koichiro Kumai, Yuko Kitagawa, Toshifumi Hibi∥	39
3	Clinical impact of a newly developed capsule endoscope: usefulness of a real-time image viewer for gastric transit abnormality 2008 ·Journal of Gastroenterology ·Haruhiko Ogata, Koichiro Kumai, Hiroyuki Imaeda, Koichi Aiura, Tadakazu Hisamatsu, Susumu Okamoto, Yasushi Iwao, Yoshinori Sugino, Masaki Kitajima, Toshifumi Hibi∥	27
4	Retrospective analysis of prognosis for scirrhous-type gastric cancer: one institution's experience 2007 ·International Journal of Clinical Oncology ·Rieko Nakamura, Yoshiro Saikawa, Norihito Wada, Masashi Yoshida, Tetsuro Kubota, Koichiro Kumai, Masaki Kitajima	12
5	Gastric Cancer Mimicking a Submucosal Tumor Diagnosed by Laparoscopic Excision Biopsy 2005 ·Journal of Laparoendoscopic & Advanced Surgical Techniques ·Tsunehiro Takahashi, Yoshihide Otani, Masashi Yoshida, Toshiharu Furukawa, Kaori Kameyama, Yasutada Akiba, Yoshiro Saikawa, Tetsuro Kubota, Koichiro Kumai, Shigeru Kuramochi, Makio Mukai, Hiromasa Ishii, Masaki Kitajima	15
6	Combination chemotherapy with JTE-522, a novel selective cyclooxygenase-2 inhibitor, and cisplatin against gastric cancer cell lines in vitro and in vivo. 2004 ·PubMed ·(unknown), Yoshiro Saikawa, Tetsuro Kubota, Kazuhiro Suganuma, Yoshihide Otani, Masahiko Watanabe, Koichiro Kumai, Masaki Kitajima	13
7	Possible chemoresistance‐related genes for gastric cancer detected by cDNA microarray 2003 ·Cancer Science ·Kazuhiro Suganuma, Tetsuro Kubota, Yoshiro Saikawa, (unknown), Yoshihide Otani, Toshiharu Furukawa, Koichiro Kumai, Hirotoshi Hasegawa, Masahiko Watanabe, Masaki Kitajima, Hironobu Nakayama, Hisafumi Okabe	52
8	The Citrus Flavonoid, Nobiletin, Inhibits Peritoneal Dissemination of Human Gastric Carcinoma in SCID Mice 2001 ·Japanese Journal of Cancer Research ·(unknown), (unknown), Tetsuro Kubota, Norihito Wada, Toshiharu Furukawa, Koichiro Kumai, Kaori Kameyama, Yasunori Okada, Masato Fujii, Masamichi Yano, Takashi Sato, Akira Ito, Masaki Kitajima	69
9	UCN‐01 (7‐Hydroxystaurosporine) Enhances 5‐Fluorouracil Cytotoxicity through Down‐regulation of Thymidylate Synthetase Messenger RNA 2000 ·Japanese Journal of Cancer Research ·(unknown), Tetsuro Kubota, Yoshihide Otani, (unknown), Masahiko Watanabe, Koichiro Kumai, Masaki Kitajima	14
10	Jejunal Limb Obstruction Caused by a Cholesterol Stone 15 Years After a Total Gastrectomy and 20 Years After a Cholecystectomy: Report of a Case 2000 ·Surgery Today ·Norihito Wada, (unknown), Yoshiro Saikawa, (unknown), (unknown), (unknown), (unknown), Yoshihide Otani, Tetsuro Kubota, Koichiro Kumai, Masaki Kitajima	15
11	Preventive Effect of Matrix Metalloproteinase Inhibitor, R‐94138, in Combination with Mitomycin C or Cisplatin on Peritoneal Dissemination of Human Gastric Cancer Cell Line TMK‐1 in Nude Mice 1999 ·Japanese Journal of Cancer Research ·(unknown), Tetsuro Kubota, Yoshihide Otani, (unknown), Masahiko Watanabe, Tatsuo Teramoto, Koichiro Kumai, Kazuhiko Tamaki, Kazuhiko Tanzawa, Tomowo Kobayashi, Masaki Kitajima	15
12	Problems and Settlement of Surgery for Elderly Patients with Gastric Cancer. Based on Experience with Patients Over 85 Years Old. 1996 ·The Japanese Journal of Gastroenterological Surgery ·Yoshihide Otani, Koichiro Kumai, Tetsuro Kubota, Masahiro Ohgami, (unknown), (unknown), Masaki Kitajima	2
13	Improvement of pharmacokinetics and antitumor activity against human hepatoma cell line by using adriamycin-entrapped stealth liposomes 1996 ·Journal of Surgical Oncology ·Hiroyuki Shimizu, Koichiro Kumai, (unknown), (unknown), Toshiaki Tagawa, Kazuhiro Nagaike, Tatsuji Yasuda, Masaki Kitajima, Takushi Tadakuma	5
14	Treatment for Multiple Early Gastric Cancer. 1995 ·The Japanese Journal of Gastroenterological Surgery ·Koichiro Kumai, Yoshihiko Sakurai, Yasunori Hoshiya, Masashi Yoshida, Yoshihide Otani, Tetsuro Kubota, Masaki Kitajima	2
15	Modified Surgery for Early Gastric Cancer. 1994 ·The Japanese Journal of Gastroenterological Surgery ·Koichiro Kumai, Yoshiro Saikawa, Shinji Ogawa, (unknown), Masahiro Ohgami, Tetsuro Kubota, Masaki Kitajima	3
16	Improvement of Therapeutic Effect by Using Fab' Fragment in the Treatment of Carcinoembryonic Antigen‐positive Human Solid Tumors with Adriamycinentrapped Immunoliposomes 1994 ·Japanese Journal of Cancer Research ·(unknown), Koichiro Kumai, Tatsuji Yasuda, Toshiaki Tagawa, Kyuya Ishibiki, Masaki Kitajima, Takushi Tadakuma	19
17	Factors Influencing Quality of Life after Curative Resection for Patients with Gastric Cancer. 1992 ·The Japanese Journal of Gastroenterological Surgery ·Koichiro Kumai, Atsushi Shimada, Yoshiro Saikawa, Ichiro Uyama, Tetsuro Kubota, Keiichi Yoshino, Kyuya Ishibiki, Masaki Kitajima	0
18	Liposomes in drug delivery system for cancer treatment. 1991 ·Drug Delivery System ·Koichiro Kumai, Takushi Tadakuma, Tatsuji Yasuda	1
19	Selective delivery of adriamycin from temperature-sensitive liposomes containing adriamycin (TS-lip-ADM) to tumors combined with local hyperthermia. 1988 ·Drug Delivery System ·Takayuki Takahashi, Koichiro Kumai, Kyuya Ishibiki, Osahiko Abe, Takushi Tadakuma, (unknown)	2
20	EVALUATION OF SPLENECTOMY FOR GASTRIC CARCINOMA 1979 ·The Japanese Journal of Gastroenterological Surgery ·Kenji Yoshino, (unknown), Shirô Nakamura, Shigeki Matsumoto, (unknown), K Isobe, (unknown), Koichiro Kumai, Kyuya Ishibiki, O Abe	12

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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