PukaPuCam: Enhance Travel Logging Experience through Third-Person View Camera Attached to Balloons. - Tsubasa Yamamoto; Yuta Sugiura; Suzanne Low; Koki Toda; Kouta Minamizawa; Maki Sugimoto; Masahiko Inami (Advances in Computer Entertainment, 2013)

Present information through afterimage with eyes closed. - Kozue Nojiri; Suzanne Low; Koki Toda; Yuta Sugiura; Yoichi Kamiyama; Masahiko Inami (AH, 2014)

Graffiti fur: turning your carpet into a computer display. - Yuta Sugiura; Koki Toda; Takayuki Hoshi; Masahiko Inami; Takeo Igarashi (SIGGRAPH Studio, 2014)

Graffiti fur: turning your carpet into a computer display. - Yuta Sugiura; Koki Toda; Takayuki Hoshi; Youichi Kamiyama; Takeo Igarashi; Masahiko Inami (UIST, 2014)

Eyes on a Car: an Interface Design for Communication between an Autonomous Car and a Pedestrian. - Chia-Ming Chang 003; Koki Toda; Daisuke Sakamoto; Takeo Igarashi (AutomotiveUI, 2017)

Grassffiti: Drawing Method to Produce Large-scale Pictures on Conventional Grass Fields. - Yuta Sugiura; Koki Toda; Takashi Kikuchi; Takayuki Hoshi; Youichi Kamiyama; Takeo Igarashi; Masahiko Inami (TEI, 2017)

A Video-based Study Comparing Communication Modalities between an Autonomous Car and a Pedestrian. - Chia-Ming Chang 003; Koki Toda; Takeo Igarashi; Masahiro Miyata; Yasuhiro Kobayashi (AutomotiveUI (adjunct), 2018)

Möbiusschleife: Beyond the Bounds of a Closed-Loop VR System. - Koki Toda; Sayuki Hayashi (VRCAI, 2019)

Mercury's Boots: Extending Visual Information and Enabling to Move Around a Remote Place for VR Avatar. - Koki Toda; Sayuki Hayashi (HCI (49), 2020)

Can Eyes on a Car Reduce Traffic Accidents? - Chia-Ming Chang 003; Koki Toda; Xinyue Gui; Stela Hanbyeol Seo; Takeo Igarashi (UI, 2022)

"I am going this way": Gazing Eyes on Self-Driving Car Show Multiple Driving Directions. - Xinyue Gui; Koki Toda; Stela Hanbyeol Seo; Chia-Ming Chang 003; Takeo Igarashi (UI, 2022)

A Field Study on Pedestrians' Thoughts toward a Car with Gazing Eyes. - Xinyue Gui; Koki Toda; Stela Hanbyeol Seo; Felix Martin Eckert; Chia-Ming Chang 003; Xiang Anthony Chen; Takeo Igarashi (CHI Extended Abstracts, 2023)

Keep Calm and Cross: Smart Pole Interaction Unit for Easing Pedestrian Cognitive Load. - Vishal Chauhan; Chia-Ming Chang 003; Ehsan Javanmardi; Jin Nakazato; Koki Toda; Pengfei Lin; Takeo Igarashi; Manabu Tsukada (WF-IoT, 2023)

Scenarios Exploration: How AR-Based Speech Balloons Enhance Car-to-Pedestrian Interaction. - Xinyue Gui; Chia-Ming Chang 003; Stela Hanbyeol Seo; Koki Toda; Takeo Igarashi (HCI (60), 2024)