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Hiroyuki Ishii

Hiroyuki Ishii

D-Index & Metrics

Engineering and Technology

D-Index
31
Citations
5594
World Ranking
9654
National Ranking
222

Overview

Hiroyuki Ishii is affiliated with NTT in Japan and has a significant body of research primarily focused on materials science and engineering. Their work spans various subfields, including materials chemistry, electrical and electronic engineering, electronic, optical and magnetic materials, polymers and plastics, and atomic and molecular physics and optics.

Their research interests include topics such as X-ray diffraction in crystallography, crystallization and solubility studies, organic electronics and photovoltaics, conducting polymers and applications, organic and molecular conductors research, perovskite materials and applications, and molecular junctions and nanostructures.

Hiroyuki Ishii has coauthored many publications with several frequent collaborators, including Jun Takeya, Toshihiro Okamoto, Shohei Kumagai, Craig P. Yu, and Masato Mitani.

Their recent papers include the following:

  • Robust, high-performance n-type organic semiconductors, 2020, Science Advances
  • Bent-Shaped p-Type Small-Molecule Organic Semiconductors: A Molecular Design Strategy for Next-Generation Practical Applications, 2020, Journal of the American Chemical Society
  • Nitrogen-Containing Perylene Diimides: Molecular Design, Robust Aggregated Structures, and Advances in n-Type Organic Semiconductors, 2022, Accounts of Chemical Research
  • Extended π-Electron Delocalization in Quinoid-Based Conjugated Polymers Boosts Intrachain Charge Carrier Transport, 2021, Chemistry of Materials
  • Conduction band structure of high-mobility organic semiconductors and partially dressed polaron formation, 2022, Nature Materials

Their frequent publication venues highlight a strong focus on crystallography and applied physics, with multiple contributions to The Cambridge Structural Database, Applied Physics Letters, Japanese Journal of Applied Physics, Journal of the American Chemical Society, and Chemistry of Materials.

  • The Cambridge Structural Database
  • Applied Physics Letters
  • Japanese Journal of Applied Physics
  • Journal of the American Chemical Society
  • Chemistry of Materials

Hiroyuki Ishii's extensive work in the field includes over 100 publications in materials science and nearly 70 in engineering, reflecting a multidisciplinary approach to research that integrates chemistry and physics with electronic and optical materials.

Best Publications

  • Base station apparatus and communication control method

    Hiroyuki Ishii

  • Base station device and communication control method

    Hiroyuki Ishii

  • A novel architecture for LTE-B :C-plane/U-plane split and Phantom Cell concept

    Hiroyuki Ishii;Yoshihisa Kishiyama;Hideaki Takahashi

  • Mobile communication method, mobile station, and radio base station

    Hiroyuki Ishii;Anil Umesh

  • Future steps of LTE-A: evolution toward integration of local area and wide area systems

    Y. Kishiyama;A. Benjebbour;T. Nakamura;H. Ishii

  • Radio base station and mobile communication method

    Kohei Kiyoshima;Hiroyuki Ishii;Naoto Okubo

  • Packet Transmission Control Device and Packet Transmission Control Method

    Hiroyuki Ishii;Akihito Hanaki;Takehiro Nakamura

  • Mobile station and mobile communication method

    Hiroyuki Ishii;Mikio Iwamura

  • Mobile communications system, base station apparatus, user apparatus, and method

    Hiroyuki Ishii;Takehiro Nakamura

  • Method and apparatus at the physical and link layer for mobile communications

    Hiroyuki Ishii

  • Call admission control device and call admission control method

    Hiroyuki Ishii;Akihito Hanaki

  • Radio base station and communication control method

    Hiroyuki Ishii;Anil Umesh

  • Distributions of Transmit Power and SINR in Device-to-Device Networks

    M. C. Erturk;S. Mukherjee;H. Ishii;H. Arslan

  • Packet transmission control apparatus and packet transmission control method

    Hiroyuki Ishii;Takehiro Nakamura;Akihito Hanaki;Yoshimasa Imamura

  • Evolution concept and candidate technologies for future steps of LTE-A

    Yoshihisa Kishiyama;Anass Benjebbour;Hiroyuki Ishii;Takehiro Nakamura

  • Dynamic TDD Support in Macrocell-Assisted Small Cell Architecture

    Bo Yu;Liuqing Yang;Hiroyuki Ishii;Sayandev Mukherjee

  • Dynamic TDD support in the LTE-B enhanced Local Area architecture

    Bo Yu;Sayandev Mukherjee;Hiroyuki Ishii;Liuqing Yang

  • User terminal, base station and radio communication method

    Kazuaki Takeda;Hiroki Harada;Hiroyuki Ishii

  • OFDM Blind Parameter Identification in Cognitive Radios

    H. Ishii;G.W. Wornell

  • Mobile station, radio base station, and communication control method

    Hiroyuki Ishii;Mikio Iwamura

  • Extension carrier discovery for carrier aggregation

    Hiroyuki Ishii;Yoshihisa Kishiyama

Frequent Co-Authors

Takeshi Fujisawa
Takeshi Fujisawa Hokkaido University
Liuqing Yang
Liuqing Yang Hong Kong University of Science and Technology
Kenichi Higuchi
Kenichi Higuchi Tokyo University of Science
Shigehisa Arai
Shigehisa Arai Tokyo Institute of Technology
Huseyin Arslan
Huseyin Arslan Istanbul Medipol University
Anass Benjebbour
Anass Benjebbour NTT (Japan)
Xiang Cheng
Xiang Cheng Peking University
Hiroshi Okamoto
Hiroshi Okamoto University of Tokyo

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