Tetsuya Toyama

644 total citations
13 papers, 567 citations indexed

About

Tetsuya Toyama is a scholar working on Hepatology, Epidemiology and Oncology. According to data from OpenAlex, Tetsuya Toyama has authored 13 papers receiving a total of 567 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Hepatology, 6 papers in Epidemiology and 2 papers in Oncology. Recurrent topics in Tetsuya Toyama's work include Hepatitis C virus research (6 papers), Liver Disease Diagnosis and Treatment (5 papers) and Hepatitis B Virus Studies (4 papers). Tetsuya Toyama is often cited by papers focused on Hepatitis C virus research (6 papers), Liver Disease Diagnosis and Treatment (5 papers) and Hepatitis B Virus Studies (4 papers). Tetsuya Toyama collaborates with scholars based in Japan and United States. Tetsuya Toyama's co-authors include Takeshi Okanoue, Yoshito Itoh, Atsuhiro Morita, Hideki Nakamura, Toshihiko Kinoshita, Yuichi Harano, Hironori Mitsuyoshi, Kohichiroh Yasui, Tsutomu Hirasawa and Tomoki Nakajima and has published in prestigious journals such as Hepatology, Biochemical and Biophysical Research Communications and Journal of Hepatology.

In The Last Decade

Tetsuya Toyama

12 papers receiving 555 citations

Peers

Countries citing papers authored by Tetsuya Toyama

Since Specialization

Citations

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

Fields of papers citing papers by Tetsuya Toyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tetsuya Toyama

This figure shows the co-authorship network connecting the top 25 collaborators of Tetsuya Toyama. A scholar is included among the top collaborators of Tetsuya Toyama 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 Tetsuya Toyama. Tetsuya Toyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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13 of 13 papers shown

#	Work	Indexed citations
1	Estimation of Near-Surface Loosened Rock Mass Zones in Mountainous Areas by Using Helicopter-Borne and Drone-Borne Electromagnetic Method for Landslide Susceptibility Analysis 2025 ·Remote Sensing ·Atsuko Nonomura, (unknown), Akira Jomori, Minoru Okumura, (unknown), (unknown), Tetsuya Toyama, (unknown), Yoshiyuki Kaneda	0
2	Drone electromagnetic survey for slope subsurface structure investigation — Flight along steep slope 2021 ·(unknown), Kenji Kubota, Shiro Tanaka, (unknown), Akira Jomori, (unknown), Tetsuya Toyama	1
3	Clinical trial of cisplatin-conjugated gelatin microspheres for patients with hepatocellular carcinoma 2011 ·Japanese Journal of Radiology ·Tetsuya Toyama, Norihisa Nitta, Shinichi Ohta, Toyohiko Tanaka, Yukihiro Nagatani, Masashi Takahashi, Kiyoshi Murata, Hisanori Shiomi, Shigeyuki Naka, Yoshimasa Kurumi, Tohru Tani, Yasuhiko Tabata	18
4	An initial clinical study on the efficacy of cisplatin-releasing gelatin microspheres for metastatic liver tumors 2008 ·European Journal of Radiology ·Norihisa Nitta, Shinichi Ohta, Toyohiko Tanaka, (unknown), Tetsuya Toyama, Akinaga Sonoda, (unknown), Akira Furukawa, Masashi Takahashi, Kiyoshi Murata, Yoshimasa Kurumi, Toru Tani, Tsutomu Sakamoto, Yasuhiko Tabata	23
5	Should aged patients with chronic hepatitis C be treated with interferon and ribavirin combination therapy? 2006 ·Hepatology Research ·Naoki Hiramatsu, Tsugiko Oze, N. Tsuda, (unknown), K. Koga, Tetsuya Toyama, Masakazu Yasumaru, Tatsuya Kanto, Tetsuo Takehara, Akinori Kasahara	26
6	Fenofibrate, a peroxisome proliferator‐activated receptor α agonist, reduces hepatic steatosis and lipid peroxidation in fatty liver Shionogi mice with hereditary fatty liver 2006 ·Liver International ·Yuichi Harano, Kohichiroh Yasui, Tetsuya Toyama, Tomoki Nakajima, Hironori Mitsuyoshi, (unknown), Tsutomu Hirasawa, Yoshito Itoh, Takeshi Okanoue	131
7	PPARα ligands activate antioxidant enzymes and suppress hepatic fibrosis in rats 2004 ·Biochemical and Biophysical Research Communications ·Tetsuya Toyama, Hideki Nakamura, (unknown), (unknown), Atsuhiro Morita, Toshihiko Kinoshita, (unknown), Yoshito Itoh, Takeshi Okanoue	157
8	Clinical characteristics and prevalence of GB virus C, SEN virus, and HFE gene mutation in Japanese patients with nonalcoholic steatohepatitis 2004 ·Journal of Gastroenterology ·(unknown), Yoshito Itoh, Yasuhito Tanaka, Masashi Mizokami, Masahito Minami, Atsuhiro Morita, Tetsuya Toyama, Kanji Yamaguchi, Hideki Fujii, Takeshi Okanoue	21
9	The significance of interferon and ribavirin combination therapy followed by interferon monotherapy for patients with chronic hepatitis C in Japan 2004 ·Hepatology Research ·Naoki Hiramatsu, Akinori Kasahara, Fumihiko Nakanishi, Tetsuya Toyama, (unknown), Saburo Tsuji, Tatsuya Kanto, Tetsuo Takehara, M. Kato, Hiroyuki Yoshihara	7
10	Detection of YMDD mutant using a novel sensitive method in chronic liver disease type B patients before and during lamivudine treatment 2002 ·Journal of Hepatology ·(unknown), Takeshi Okanoue, (unknown), Yoshito Itoh, Hideki Nakamura, Atsuhiro Morita, Tetsuya Toyama, Masahito Minami	83
11	Clinical significance of elevated serum interferon‐ inducible protein‐10 levels in hepatitis C virus carriers with persistently normal serum transaminase levels 2001 ·Journal of Viral Hepatitis ·(unknown), Atsuhiro Morita, Kenichi Nishioji, Shosaku Narumi, Tetsuya Toyama, (unknown), Hideki Nakamura, (unknown), Takeshi Okanoue	45
12	Fundamental Study on Combustion Characteristics of Biobriquette. 1997 ·KAGAKU KOGAKU RONBUNSHU ·Guoqing Lu, Tetsuya Toyama, Hee‐Joon Kim, Ichiro Naruse, (unknown), (unknown)	18
13	Changes in Serum Fibrogenesis Markers During Interferon Therapy for Chronic Hepatitis Type C 1996 ·Hepatology ·(unknown), T Kashiwagi, Akio Ito, Yosuke Tanaka, (unknown), Tetsuya Toyama, (unknown), Masafumi Naito, (unknown)	37

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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