JP Laid‑Open Patent Application 2024‑051541, “Porous Composite and Method for Manufacturing the Same”, Inventors: Seiji Yamaguchi, Seine A. Shintani, Shunsuke Fujibayashi, Shuntaro Terauchi, Tomiharu Matsushita
Japanese Patent No. 7142404, “Observation Method Using a Scanning Electron Microscope and Specimen Holder Therefor”, Inventors: Seine A. Shintani, Seiji Yamaguchi, Hiroaki Takadama