H. Hatakeyama

809 total citations
48 papers, 589 citations indexed

About

H. Hatakeyama is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Surfaces, Coatings and Films. According to data from OpenAlex, H. Hatakeyama has authored 48 papers receiving a total of 589 indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Electrical and Electronic Engineering, 14 papers in Atomic and Molecular Physics, and Optics and 2 papers in Surfaces, Coatings and Films. Recurrent topics in H. Hatakeyama's work include Photonic and Optical Devices (39 papers), Semiconductor Lasers and Optical Devices (32 papers) and Optical Network Technologies (17 papers). H. Hatakeyama is often cited by papers focused on Photonic and Optical Devices (39 papers), Semiconductor Lasers and Optical Devices (32 papers) and Optical Network Technologies (17 papers). H. Hatakeyama collaborates with scholars based in Japan. H. Hatakeyama's co-authors include T. Anan, K. Fukatsu, Masayoshi Tsuji, T. Tamanuki, N. Suzuki, T. Sasaki, Tomoaki Kato, Junichi Sasaki, Kenichiro Yashiki and M. Itoh and has published in prestigious journals such as Applied Physics Letters, Journal of Lightwave Technology and IEEE Journal of Quantum Electronics.

In The Last Decade

H. Hatakeyama

47 papers receiving 542 citations

Peers

H. Hatakeyama

EEE

AMPO

SCF

D. Z. Tsang United States

Luigi Scaccabarozzi United States

C.L. Shieh United States

T. Wipiejewski United States

Soumava Ghosh India

M. O. Tanner United States

Mark van Dal Belgium

James O’Callaghan Ireland

Oluwamuyiwa Olubuyide United States

D. Z. Tsang United States

H. Hatakeyama

297 ×0.5

EEE

203 ×0.9

AMPO

16 ×0.4

34 ×1.5

12 ×0.9

SCF

Citations per year, relative to H. Hatakeyama H. Hatakeyama (= 1×) peers D. Z. Tsang

Countries citing papers authored by H. Hatakeyama

Since Specialization

Citations

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

Fields of papers citing papers by H. Hatakeyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of H. Hatakeyama

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

Nakata, Toshiyuki, et al.. (2010). InAlAs avalanche photodiodes for gated Geiger mode single photon counting. 822–823. 5 indexed citations

Hatakeyama, H., T. Anan, T. Akagawa, et al.. (2010). Highly Reliable High-Speed 1.1-$\mu$m-Range VCSELs With InGaAs/GaAsP-MQWs. IEEE Journal of Quantum Electronics. 46(6). 890–897. 43 indexed citations

Hatakeyama, H., T. Akagawa, K. Fukatsu, et al.. (2008). 25 Gbit/s-100 °C operation and high reliability of 1.1-μm-range VCSELs with InGaAs/GaAsP strain-compensated MQWs. 1–2. 1 indexed citations

Hatakeyama, H., T. Akagawa, K. Fukatsu, et al.. (2008). 25 Gbit/s 100°C operation of highly reliable InGaAs/GaAsP-VCSELs. Electronics Letters. 45(1). 45–46. 18 indexed citations

Suzuki, Nobuhiro, et al.. (2006). 25-Gbps operation of 1.1-/spl mu/m-range InGaAs VCSELs for high-speed optical interconnections. 2. 3 pp.–3 pp.. 17 indexed citations

Suzuki, N., H. Hatakeyama, Kenichiro Yashiki, et al.. (2006). High-speed InGaAs VCSELs. 508–509. 7 indexed citations

Sasaki, Junichi, et al.. (2005). Hybrid Integrated 4x4 Matrix Optical Switch Using Silica Based Planar Lightwave Circuit. 350–350. 1 indexed citations

Hatakeyama, H., T. Omori, K. Hashimoto, & M. Yamaguchi. (2005). Fabrication of SAW devices using SEM-based electron beam lithography and lift-off technique for lab use. 3. 1896–1900. 15 indexed citations

Matsuo, Hirofumi, et al.. (2002). Analysis of the novel soft-switching DC-DC converter with low output voltage. 3. 1503–1509. 8 indexed citations

10.

Hatakeyama, H., et al.. (2002). Wavelength-selectable microarray light sources for wide-band DWDM applications. IEEE Journal of Selected Topics in Quantum Electronics. 8(6). 1341–1348. 22 indexed citations

11.

Kudo, Koji, Kenichiro Yashiki, T. Morimoto, et al.. (2001). Wavelength-Selectable Microarray Light Sources Simultaneously Fabricated on a Wafer Covering The Entire C-Band. Optical Fiber Communication Conference and International Conference on Quantum Information. TuB4–TuB4. 2 indexed citations

12.

Hatakeyama, H., et al.. (2001). Uniform and high-performance eight-channel bent waveguide SOA array for hybrid PICs. IEEE Photonics Technology Letters. 13(5). 418–420. 4 indexed citations

13.

Sasaki, Junichi, M. Itoh, T. Tamanuki, et al.. (2001). Multiple-chip precise self-aligned assembly for hybrid integrated optical modules using Au-Sn solder bumps. IEEE Transactions on Advanced Packaging. 24(2). 569–575. 40 indexed citations

14.

Sasaki, T., Masahiro Yamaguchi, T. Tamanuki, Sota Kitamura, & H. Hatakeyama. (1999). Spot-Size-Converter Integrated Semiconductor Optical Amplifiers for Optical Switching Systems. IEICE Transactions on Communications. 82(2). 431–438. 1 indexed citations

15.

Hatakeyama, H., T. Tamanuki, Sota Kitamura, et al.. (1999). Hybrid Integrated 4×4 Optical Matrix Switch Module on Silica Based Planar Waveguide Platform. IEICE Transactions on Communications. 82(2). 357–364. 6 indexed citations

16.

Tajima, Kenji, Shigeru Nakamura, Yuichiro Ueno, et al.. (1999). Hybrid integrated symmetric Mach-Zehnder all-opticalswitch with ultrafast, high extinction switching. Electronics Letters. 35(23). 2030–2031. 27 indexed citations

17.

Kitamura, Sota, H. Hatakeyama, Kiichi Hamamoto, et al.. (1999). Spot-size converter integrated semiconductor optical amplifiers for optical gate applications. IEEE Journal of Quantum Electronics. 35(7). 1067–1074. 2 indexed citations

18.

Kato, Toshio, Junichi Sasaki, H. Hatakeyama, et al.. (1998). 10 Gb/s photonic cell switching with hybrid 4 × 4 optical matrix switch module on silica based planar waveguide platform. Optics and Photonics News. 9. 48. 5 indexed citations

19.

Kato, Tomoaki, Junichi Sasaki, H. Hatakeyama, et al.. (1998). 10Gb/s Photonic Cell Switching with Hybrid 4x4 Optical Matrix Switch Module on Silica based Planar Waveguide Platform. Optical Fiber Communication Conference. 13 indexed citations

20.

Sasaki, Junichi, H. Hatakeyama, T. Tamanuki, et al.. (1998). Hybrid 4×4 optical matrix switch module on silica based Planar Lightwave Circuit by self-align multiple chip bonding technique. 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.

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