Electromagnetic Scattering from Cylinders Located near Periodic Cylinder Array. - Koki Watanabe; Yoshimasa Nakatake (BWCCA, 2010)

Floquet-Mode Analysis of Two-Dimensional Photonic Crystal Waveguides Formed by Circular Cylinders Using Periodic Boundary Conditions. - Koki Watanabe; Yoshimasa Nakatake (IEICE Trans. Electron., 2010)

Numerical Analysis of Two-Dimensional Photonic Crystal Waveguide Devices Using Periodic Boundary Conditions and Multilayer Technique. - Yoshimasa Nakatake; Koki Watanabe (NBiS, 2011)

Electromagnetic Scattering from Imperfectly Periodic Surfaces. - Koki Watanabe (NBiS, 2011)

Numerical Analysis of Two-Dimensional Photonic Crystal Waveguide Devices Using Periodic Boundary Conditions. - Yoshimasa Nakatake; Koki Watanabe (IEICE Trans. Electron., 2011)

A Formulation of Electromagnetic Scattering by Defected Periodic Cylinder Array Embedded in Dielectric Slab. - Koki Watanabe (ICGEC (1), 2015)

X-Wing: Propeller-Based Force Feedback to Head in a Virtual Environment. - Koki Watanabe; Fumihiko Nakamura; Kuniharu Sakurada; Theophilus Teo; Maki Sugimoto (SIGGRAPH Asia XR, 2021)

An Integrated Ducted Fan-Based Multi-Directional Force Feedback with a Head Mounted Display. - Koki Watanabe; Fumihiko Nakamura; Kuniharu Sakurada; Theophilus Teo; Maki Sugimoto (ICAT-EGVE, 2022)

Search Query Embeddings via User-behavior-driven Contrastive Learning. - Sosuke Nishikawa; Jun Hirako; Nobuhiro Kaji; Koki Watanabe; Hiroki Asano; Souta Yamashiro; Shumpei Sano (NAACL (Industry Track), 2025)