Hitoshi Funayama

584 total citations
21 papers, 272 citations indexed

About

Hitoshi Funayama is a scholar working on Obstetrics and Gynecology, Public Health, Environmental and Occupational Health and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Hitoshi Funayama has authored 21 papers receiving a total of 272 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Obstetrics and Gynecology, 8 papers in Public Health, Environmental and Occupational Health and 6 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Hitoshi Funayama's work include Pregnancy and preeclampsia studies (9 papers), Gestational Trophoblastic Disease Studies (7 papers) and Prenatal Screening and Diagnostics (6 papers). Hitoshi Funayama is often cited by papers focused on Pregnancy and preeclampsia studies (9 papers), Gestational Trophoblastic Disease Studies (7 papers) and Prenatal Screening and Diagnostics (6 papers). Hitoshi Funayama collaborates with scholars based in Germany, Japan and United States. Hitoshi Funayama's co-authors include Peter Kaufmann, Berthold Huppertz, G. Gaus, Hans‐Georg Frank, L. Füzesi, S. Kertschanska, Masaomi Takayama, Makoto Takayama, H. Soma and Kumiko Fujiwara and has published in prestigious journals such as Chemosphere, Placenta and Histochemistry and Cell Biology.

In The Last Decade

Hitoshi Funayama

20 papers receiving 265 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hitoshi Funayama Germany 8 129 80 77 74 55 21 272
Lotte E. van der Meeren Netherlands 10 121 0.9× 51 0.6× 69 0.9× 66 0.9× 68 1.2× 47 269
Se-Te Joseph Huang United States 7 205 1.6× 62 0.8× 238 3.1× 94 1.3× 68 1.2× 7 380
Jenna Turocy United States 9 65 0.5× 64 0.8× 35 0.5× 54 0.7× 75 1.4× 14 258
Mariyan J. Jeyarajah Canada 9 180 1.4× 26 0.3× 77 1.0× 110 1.5× 116 2.1× 12 288
Ioannis Dedes Switzerland 10 116 0.9× 58 0.7× 39 0.5× 53 0.7× 119 2.2× 24 329
Atsuya Fujito Japan 8 118 0.9× 105 1.3× 24 0.3× 27 0.4× 98 1.8× 12 391
Michele Paudice Italy 9 91 0.7× 38 0.5× 24 0.3× 31 0.4× 34 0.6× 47 246
Ritsuo Honda Japan 10 88 0.7× 118 1.5× 87 1.1× 52 0.7× 50 0.9× 23 323
J.S. Fitzgerald Germany 7 154 1.2× 44 0.6× 231 3.0× 50 0.7× 72 1.3× 15 345
J Drury United Kingdom 6 170 1.3× 43 0.5× 184 2.4× 36 0.5× 41 0.7× 12 341

Countries citing papers authored by Hitoshi Funayama

Since Specialization
Citations

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

Fields of papers citing papers by Hitoshi Funayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hitoshi Funayama

This figure shows the co-authorship network connecting the top 25 collaborators of Hitoshi Funayama. A scholar is included among the top collaborators of Hitoshi Funayama 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 Hitoshi Funayama. Hitoshi Funayama 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.
Itoh, Yoichi, Yumiko Oasa, Hitoshi Funayama, et al.. (2011). Near-infrared imaging survey of faint companions around young dwarfs in the Pleiades cluster. Research in Astronomy and Astrophysics. 11(3). 335–344. 1 indexed citations
2.
Funayama, Hitoshi, Yoichi Itoh, Yumiko Oasa, et al.. (2009). Metallicity Measurements of Pleiades Young Dwarfs. Publications of the Astronomical Society of Japan. 61(5). 931–939. 7 indexed citations
3.
Toyota, Eri, Yoichi Itoh, Seitaro Urakawa, et al.. (2009). Radial Velocity Search for Extrasolar Planets in Visual Binary Systems. Publications of the Astronomical Society of Japan. 61(1). 19–28. 14 indexed citations
4.
Nishi, Hirotaka, et al.. (2003). Rupture of pregnant noncommunicating rudimentary uterine horn with fetal salvage: a case report. Archives of Gynecology and Obstetrics. 268(3). 224–226. 20 indexed citations
5.
6.
Frank, Hans‐Georg, Bastian Gunawan, Hans-Juergen Schulten, et al.. (2000). Cytogenetic and DNA-Fingerprint Characterization of Choriocarcinoma Cell Lines and a Trophoblast /Choriocarcinoma Cell Hybrid. Cancer Genetics and Cytogenetics. 116(1). 16–22. 35 indexed citations
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9.
Funayama, Hitoshi, G. Gaus, Masaomi Takayama, et al.. (1997). Parent cells for trophoblast hybridization II: AC1 and related trophoblast cell lines, a family of HGPRT-negative mutants of the choriocarcinoma cell line JEG-3. Placenta. 18. 191–201. 32 indexed citations
10.
Huppertz, Berthold, S. Kertschanska, Hans‐Georg Frank, et al.. (1996). Extracellular matrix components of the placental extravillous trophoblast: immunocytochemistry and ultrastructural distribution. Histochemistry and Cell Biology. 106(3). 291–301. 47 indexed citations
11.
Gaus, G., Hans‐Georg Frank, Hitoshi Funayama, & Peter Kaufmann. (1996). Hybridization of extravillous trophoblast III: Optimization of fusion parameters and screening protocols. Placenta. 17(5-6). A34–A34. 1 indexed citations
12.
Frank, Hans‐Georg, et al.. (1996). Hybridization of extravillous trophoblast I: Selection of a family of HGPRT-negative Jeg-3 mutants as fusion partners. Placenta. 17(5-6). A33–A33. 1 indexed citations
13.
Huppertz, Berthold, Sonja Kertschanska, Hans‐Georg Frank, et al.. (1996). Extracellular matrix components of the placental extravillous trophoblast: immunocytochemistry and ultrastructural distribution. Histochemistry and Cell Biology. 106(3). 291–301. 1 indexed citations
14.
15.
Takayama, Michiyo, et al.. (1990). Concentration of placental protein 19 in body fluid and placental tissues. Archives of Gynecology and Obstetrics. 247(2). 83–93.
16.
17.
Takayama, Michiyo, Keiichi Isaka, T. Ogawa, et al.. (1988). Placental Protein 21. Gynecologic and Obstetric Investigation. 25(4). 230–238. 1 indexed citations
18.
Takayama, Masaomi, et al.. (1988). Characteristic Differences in Immunohistochemical Localization of New Placental Proteins (PP1, PP19, PP21) in the Human Placenta. Gynecologic and Obstetric Investigation. 26(4). 274–280. 2 indexed citations
19.
Takayama, Makoto, et al.. (1986). Abnormally Large Placenta Associated with Beckwith-Wiedemann Syndrome. Gynecologic and Obstetric Investigation. 22(3). 165–168. 41 indexed citations
20.
Funayama, Hitoshi, et al.. (1977). Light Intensity Profiles in Photoreactors Applied by a Low Pressure Mercury Lamp. KAGAKU KOGAKU RONBUNSHU. 3(4). 354–358. 5 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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