This map shows the geographic impact of H. Hirosawa'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 H. Hirosawa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. Hirosawa more than expected).
This network shows the impact of papers produced by H. Hirosawa. 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 H. Hirosawa. The network helps show where H. Hirosawa may publish in the future.
Co-authorship network of co-authors of H. Hirosawa
This figure shows the co-authorship network connecting the top 25 collaborators of H. Hirosawa.
A scholar is included among the top collaborators of H. Hirosawa 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 H. Hirosawa. H. Hirosawa is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Tachikawa, Sumitaka, Kazunori Shimazaki, Akira Ohnishi, et al.. (2003). Smart Radiation Device based on a perovskite manganese oxide. ESASP. 540. 41–47.9 indexed citations
4.
Kadokura, Akira, Hisao Yamagishi, Natsuo Sato, et al.. (2002). Polar Patrol Balloon experiment in Antarctica during 2002-2003. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 16. 157–172.1 indexed citations
Fukuda, Seisuke & H. Hirosawa. (2001). Polarimetric SAR Image Classification Using Support Vector Machines. IEICE Transactions on Electronics. 84(12). 1939–1945.22 indexed citations
7.
Fukuda, Seisuke, et al.. (2000). Dark Line Features Observed in K-Distributed Synthetic Aperture Radar Images. IEICE Transactions on Communications. 83(9). 1938–1944.1 indexed citations
Kobayashi, Hideyuki, Kiyoaki Wajima, H. Hirabayashi, et al.. (2000). HALCA's Onboard VLBI Observing System. Publications of the Astronomical Society of Japan. 52(6). 967–973.2 indexed citations
Lanari, Riccardo & H. Hirosawa. (1993). Synthetic Aperture Radar Data Processing Using Nonstandard FFT Algorithm: JERS-1, a Case Study. IEICE Transactions on Communications. 1271–1278.2 indexed citations
14.
Hirosawa, H. & Hiroshi Kimura. (1990). Generation of speckle-reduced one-look SAR images. 705–710.2 indexed citations
Yamanaka, Manabu D., et al.. (1985). ‘‘Glow-discharge’’ ionic anemometer. Review of Scientific Instruments. 56(4). 617–622.12 indexed citations
20.
Nomura, Takaharu, T. Hayashi, T. Nishimura, H. Hirosawa, & M. Ichikawa. (1985). Usuda deep Space Station with 64-meter-diameter antenna.
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.