EyeCatcher: A Digital Camera for Capturing a Variety of Natural Looking Facial Expressions in Daily Snapshots. - Koji Tsukada; Maho Oki (Pervasive, 2010)

ChameleonBall. - Koji Tsukada; Maho Oki (TEI, 2010)

HomeOrgel: interactive music box for the aural representation of home activities. - Maho Oki; Koji Tsukada; Kazutaka Kurihara; Itiro Siio (APCHI, 2012)

AugmentedBacklight: Expansion of LCD Backlights Using Lighting Methods in the Real World. - Maho Oki; Koji Tsukada; Itiro Siio (HCI (3), 2013)

FingerPhone: smart interphone integrated with a fingerprint sensor. - Maho Oki; Koji Tsukada; Kazuhiro Kimura; Satoshi Nakamatsu (UbiComp/ISWC Adjunct, 2015)

CARduino: device toolkit suitable for use in automobiles. - Koji Tsukada; Maho Oki; Takafumi Yamamoto; Tomohiro Imaizumi (UbiComp/ISWC Adjunct, 2015)

AnimalCatcher: a digital camera to capture various reactions of animals. - Koji Tsukada; Maho Oki; Kazutaka Kurihara; Yuko Furudate (CoRR, 2015)

SomaticBall: Ball-Type Device Providing "Sticking Feeling". - Hayato Dogai; Maho Oki; Koji Tsukada (ACE, 2016)

Sparklry: Designing "Sparkle" of Interactive Jewelry. - Maho Oki; Koji Tsukada (TEI, 2017)

Demo hour. - Hyosun Kwon; Boriana Koleva; Steve Benford; Tom Schofield; Guy Schofield; Maho Oki; Koji Tsukada; Daniel Harrison; Richard Banks; Tim Regan; Martin Grayson (Interactions, 2017)

ToolShaker: Presentation Technique for "as-is" Display of Daily Commodities. - Hayato Dogai; Maho Oki; Koji Tsukada (AH, 2018)

POV Display and Interaction Methods extending Smartphone. - Yura Tamai; Maho Oki; Koji Tsukada (AHs, 2021)

Lens Shaping Method and Applications Using UV Printer. - Koji Tsukada; Kei Sugiyama; Maho Oki (J. Inf. Process., 2022)

ChromicCanvas: Interactive Canvas Using Chromic Fiber. - Maho Oki; Mao Wakamoto; Koji Tsukada (HCI (43), 2023)

Card Type Device to Support Acquirement of Card Techniques. - Koji Tsukada; Kenki Tsuda; Maho Oki (HCI (27), 2023)