Hiroshi Tomomasa

633 total citations
30 papers, 458 citations indexed

About

Hiroshi Tomomasa is a scholar working on Surgery, Reproductive Medicine and Molecular Biology. According to data from OpenAlex, Hiroshi Tomomasa has authored 30 papers receiving a total of 458 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Surgery, 12 papers in Reproductive Medicine and 11 papers in Molecular Biology. Recurrent topics in Hiroshi Tomomasa's work include Sperm and Testicular Function (12 papers), Testicular diseases and treatments (8 papers) and Reproductive Biology and Fertility (5 papers). Hiroshi Tomomasa is often cited by papers focused on Sperm and Testicular Function (12 papers), Testicular diseases and treatments (8 papers) and Reproductive Biology and Fertility (5 papers). Hiroshi Tomomasa collaborates with scholars based in Japan and United States. Hiroshi Tomomasa's co-authors include Kenneth S. K. Tung, Terry T. Turner, Tsunetada Yazaki, Takashi Umeda, T. Umeda, Shigeru Oshio, Tatsuo Iizumi, Hiromichi Ishikawa, Yutaka Kamiyama and Hirofumi Shimizu and has published in prestigious journals such as Cancer, The Journal of Urology and Biology of Reproduction.

In The Last Decade

Hiroshi Tomomasa

29 papers receiving 421 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hiroshi Tomomasa Japan 10 232 224 113 63 44 30 458
Sündüz Özlem Altınkaya Türkiye 14 170 0.7× 71 0.3× 74 0.7× 90 1.4× 36 0.8× 50 501
Takahito Nasu Japan 11 97 0.4× 177 0.8× 104 0.9× 25 0.4× 54 1.2× 44 463
Nicolas Galazis United Kingdom 13 172 0.7× 137 0.6× 82 0.7× 116 1.8× 12 0.3× 27 471
Subbulaxmi Trikudanathan United States 11 100 0.4× 95 0.4× 118 1.0× 80 1.3× 26 0.6× 20 548
P Canlorbe France 14 271 1.2× 211 0.9× 276 2.4× 79 1.3× 26 0.6× 81 619
Cohen Cj United States 10 158 0.7× 110 0.5× 43 0.4× 54 0.9× 42 1.0× 17 378
Alim Koşar Türkiye 11 81 0.3× 111 0.5× 75 0.7× 19 0.3× 52 1.2× 24 352
Maria Giulia Santaguida Italy 16 63 0.3× 185 0.8× 98 0.9× 40 0.6× 34 0.8× 30 777
Erbil Doğan Türkiye 17 511 2.2× 117 0.5× 83 0.7× 278 4.4× 22 0.5× 49 875
Sophie Christin-Maître France 10 114 0.5× 176 0.8× 148 1.3× 159 2.5× 14 0.3× 30 651

Countries citing papers authored by Hiroshi Tomomasa

Since Specialization
Citations

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

Fields of papers citing papers by Hiroshi Tomomasa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroshi Tomomasa

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

All Works

20 of 20 papers shown
1.
Tomomasa, Hiroshi, et al.. (2008). A case of mosaic Klinefelter syndrome associated with isodicentric Yp. Reproductive Medicine and Biology. 7(4). 177–180. 1 indexed citations
2.
Oshio, Shigeru, M. Iwabuchi, Hideo Matsuda, et al.. (2007). Effect of Sample Collection Site on Semen Parameters of Healthy Young Volunteers. Archives of Andrology. 53(2). 53–58. 1 indexed citations
3.
Oshio, Shigeru, M. Iwabuchi, Hideo Matsuda, et al.. (2004). INDIVIDUAL VARIATION IN SEMEN PARAMETERS OF HEALTHY YOUNG VOLUNTEERS. Archives of Andrology. 50(6). 417–425. 17 indexed citations
4.
Tomomasa, Hiroshi, Shigeru Oshio, Yutaka Kamiyama, et al.. (2002). Gonadal Function in Patients with Testicular Germ Cell Tumors. Archives of Andrology. 48(6). 405–415. 7 indexed citations
5.
Iizumi, Tatsuo, Mika Sato, Satoshi Sato, et al.. (2002). Thymidine Phosphorylase and Dihydropyrimidine Dehydrogenase in Bladder Cancer. Urologia Internationalis. 68(2). 122–125. 3 indexed citations
6.
Yoshii, Takashi, Yutaka Kamiyama, Hirofumi Shimizu, et al.. (2002). [A case of leiomyosarcoma of the spermatic cord].. PubMed. 48(4). 225–7. 6 indexed citations
7.
Tomomasa, Hiroshi, et al.. (2002). Germ Cell Apoptosis in Undescended Testis: The Origin of its Impaired Spermatogenesis in the TS Inbred Rat. The Journal of Urology. 168(1). 343–347. 25 indexed citations
8.
Tomomasa, Hiroshi, Hiroshi Shimizu, Sho Sato, et al.. (2001). Clinical study of testicular germ cell tumors.. PubMed. 47(6). 389–95. 6 indexed citations
9.
Tomomasa, Hiroshi, et al.. (1999). XX-MALE SYNDROME BEARING THE SEX-DETERMINING REGION Y. Archives of Andrology. 42(2). 89–96. 9 indexed citations
10.
Shimizu, Hirofumi, Yutaka Kamiyama, Hiroshi Tomomasa, et al.. (1999). Bilateral Emphysematous Pyelonephritis with Autosomal-Dominant Polycystic Kidney Disease Successfully Treated by Conservative Method. Urologia Internationalis. 63(4). 252–254. 14 indexed citations
11.
Yazaki, Tsunetada, Yutaka Kamiyama, Hiroshi Tomomasa, et al.. (1999). Ureteropyeloscopy in the diagnosis of patients with upper tract hematuria: An initial clinical study. International Journal of Urology. 6(5). 219–225. 12 indexed citations
12.
Kamiyama, Y., Tatsuo Iiyama, Hisashi Shimizu, et al.. (1998). [Clinical studies on the quality of life in patients with ileal conduit].. PubMed. 44(6). 381–5. 1 indexed citations
13.
Turner, Terry T., et al.. (1998). Acute Testicular Ischemia Results in Germ Cell-Specific Apoptosis in the Rat. The Journal of Urology. 160(5). 1944–1944. 3 indexed citations
14.
Turner, Terry T., et al.. (1997). Acute Testicular Ischemia Results in Germ Cell-Specific Apoptosis in the Rat1. Biology of Reproduction. 57(6). 1267–1274. 265 indexed citations
15.
Iizumi, Tatsuo, S Shinohara, Hiroshi Amemiya, et al.. (1995). Plasmacytoma of the Testis. Urologia Internationalis. 55(4). 218–221. 8 indexed citations
16.
Tomomasa, Hiroshi, Satoshi Waguri, T. Umeda, et al.. (1994). Lysosomal cysteine proteinases in rat epididymis.. Journal of Histochemistry & Cytochemistry. 42(3). 417–425. 19 indexed citations
17.
Tomomasa, Hiroshi, Shigeru Oshio, Hiroshi Amemiya, et al.. (1992). Testicular Injury: Late Results of Semen Analyses After Uniorchiectomy. Archives of Andrology. 29(1). 59–63. 10 indexed citations
18.
19.
Oshio, Shigeru, Hiroshi Tomomasa, Hiroshi Amemiya, et al.. (1990). Damaging Effects of Cisplatin on Mouse Spermatozoa. Archives of Andrology. 24(2). 113–120. 14 indexed citations
20.
Ishikawa, Hiromichi, et al.. (1986). STUDY ON TRACE ELEMENTS IN SEMEN IN PATIENTS WITH MALE INFERTILITY. The Japanese Journal of Urology. 77(7). 1159–1163. 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Sündüz Özlem Altınkaya Breakdown of academic impact, for papers by Takahito Nasu Breakdown of academic impact, for papers by Nicolas Galazis Breakdown of academic impact, for papers by Subbulaxmi Trikudanathan Breakdown of academic impact, for papers by P Canlorbe Breakdown of academic impact, for papers by Cohen Cj Breakdown of academic impact, for papers by Alim Koşar Breakdown of academic impact, for papers by Maria Giulia Santaguida Breakdown of academic impact, for papers by Erbil Doğan Breakdown of academic impact, for papers by Sophie Christin-Maître
Rankless by CCL
2026