A half-implant device on fingernails

Emi Tamaki, Ken Iwasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


Hand gesture feedback systems using tactile or visual information can only be used in given situations because of the limitations of the device features such as the need for a battery. In this paper, a half-implant device is suggested. The half-implant device consists of a radio frequency (RF) receiving antenna, small electronic parts, and UV gel. The UV gel is used to glue the parts onto the filed user's nail and cover the parts meant to be waterproof. The device receives power from the RF antenna; therefore, it does not require a battery to function. The device notifies whether the finger is in a gesture space by lighting an LED or activating a vibration motor. The primary benefit of this device is that the user can feel hand gesture feedback, anytime and anywhere. The device can be placed on the users' fingernail for approximately three weeks. To verify the devices' influence on the users' gesture task, we conducted a preliminary user study. The experiment revealed that the tactile notification reduced the task time by 2.62 seconds compared to that of the test with no feedback. We also investigated user's acceptability of this kind of technology. It revealed that this technology is acceptable only when it can be removed in the user's will and used in daily-life.

Original languageEnglish
Title of host publicationProceedings of the 5th Augmented Human International Conference, AH 2014
PublisherAssociation for Computing Machinery
ISBN (Print)9781450327619
Publication statusPublished - 2014
Externally publishedYes
Event5th Augmented Human International Conference, AH 2014 - Kobe, Japan
Duration: 2014 Mar 72014 Mar 8

Publication series

NameACM International Conference Proceeding Series


Conference5th Augmented Human International Conference, AH 2014


  • Design
  • Fingertip
  • Half implant
  • Haptic
  • Nail
  • RF (Radio Frequency)
  • Tactile
  • Tangible
  • Wearable

ASJC Scopus subject areas

  • Software
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications


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