Kohei Ishii's Website

English / 日本語

Presentation

Oral (Domestic)

  1. Kohei Ishii,
    "A differentiable DFT-based framework for inverse materials design",
    Theory Seminar, The Institute for Solid State Physics, The University of Tokyo.
    (June 26th, 2026, The Institute for Solid State Physics, The University of Tokyo / Online)
  2. Kohei Ishii, Hisazumi Akai, Tetsuya Fukushima, Hikari Shinya, and Koji Inui,
    "First-Principles Inverse Design of Materials via Automatic Differentiation" (in Japanese),
    2026 Spring Meeting, The Physical Society of Japan.
    (March 25th, 2026, Online)
  3. Kohei Ishii, Hisazumi Akai, Tetsuya Fukushima, Hikari Shinya, and Koji Inui,
    "First-Principles Inverse Design of Magnetic Materials by Automatic Differentiation",
    Fourth Workshop on Density Functional Theory: Fundamentals, Developments, and Applications (DFT2026)
    (January 28th, 2026, Research Center for Nuclear Physics, The University of Osaka)
  4. Kohei Ishii, Jun Haruyama, Osamu Sugino,
    "Evaluating the Importance of Second-Order Electron-Phonon Interactions in the Empty Lattice Model" (in Japanese),
    2024 Annual (79th) Meeting, The Physical Society of Japan.
    (September 16th, 2024, Sapporo Campus, Hokkaido University)
  5. Kohei Ishii, Jun Haruyama, Osamu Sugino,
    "First-principles calculations of band gaps incorporating electron-phonon interactions to infinite order" (in Japanese),
    Autumn Meeting 2022, The Physical Society of Japan.
    (September 12th, 2022, Ookayama Campus, Tokyo Institute of Technology)
  6. Kohei Ishii, Jun Haruyama, Osamu Sugino,
    "Development of first-principles calculation methods incorporating higher-order electron-phonon interactions" (in Japanese),
    2022 Annual (77th) Meeting, The Physical Society of Japan.
    (March 16th, 2022, Online)
  7. Kohei Ishii, Jun Haruyama, Osamu Sugino,
    "First-principles calculation of band gap correction of semiconductors by electron-phonon interactions" (in Japanese),
    Autumn Meeting 2020, The Physical Society of Japan.
    (September 10th, 2020, Online)

Poster (Domestic)

  1. Kohei Ishii, Michiharu Nakano, Masumi Sato, Tetsuya Fukushima, Makoto Saito, Takaki Sugiura, Kota Ido,
    "電子状態密度を記述子とした機械学習による酸素空孔生成エネルギーの予測と酸素吸蔵材の探索",
    スパコン共同利用研究会「計算物質科学の今と未来」,
    (April 2nd, 2026, The Institute for Solid State Physics, The University of Tokyo)
  2. Kohei Ishii, Hisazumi Akai, Tetsuya Fukushima, Hikari Shinya, and Koji Inui,
    "First-Principles Inverse Magnetic Materials Design by Automatic Differentiation",
    The 26th Asian Workshop on First-Principles Electronic Structure Calculations (ASIAN-26)
    (October 28th, 2025, Tsukuba International Congress Center, Tsukuba, Japan)
  3. Kohei Ishii, Jun Haruyama, Osamu Sugino,
    "Allen-Heine-Cardona理論の拡張とバンドギャップ補正への適用",
    物性研究所スパコン共同利用・CCMS合同研究会「計算物質科学の新展開」,
    (May 12th, 2022, Online)
  4. Kohei Ishii, Jun Haruyama, Osamu Sugino,
    "Development of first-principles methods for the incorporation of electron-multiphonon interactions" (in Japanese),
    Autumn Meeting 2021, The Physical Society of Japan.
    (September 21st, 2021, Online)
  5. Kohei Ishii, Jun Haruyama, Osamu Sugino,
    "電子・フォノン相互作用によるバンドギャップ補正における選択則",
    物性研究所スパコン共同利用・CCMS合同研究会「計算物質科学の新展開2020」,
    (December 21st, 2020, Online)
  6. Kohei Ishii, Yoshifumi Noguchi, and Osamu Sugino,
    "Self-consistent GW+BSE calculation on small molecules",
    The International Summer WorkShop 2018 on First-Principles Electronic Structure Calculations in ISSP.
    (July 11th, 2018, The Institute for Solid State Physics, The University of Tokyo)