- The commercialization of graphene electronics
K Hjelt, H Dscher
Nature Electronics, 1-3 2024
- Photoluminescence of AgInSe2
K Hjelt, J Krustokb, M Yakushev, H Collan, AE Hill, RD Tomlinson
Ternary and Multinary Compounds, 441-444 2020
- Graphene is on track to deliver on its promises
T Rei, K Hjelt, AC Ferrari
Nature nanotechnology 14 (10), 907-910 2019
- System and method for interactive distribution of digital content
JO Heikel, TI Kannas, TJ Mattila, O Paloheimo, KT Hjelt, R Rikkola
US Patent 9,626,016 2017
- Dynamically configurable balancing board
K Hjelt, S Keronen
US Patent 9,044,634 2015
- Mobile electronic system
S Naukkarinen, T Ryhnen, K Hjelt, K Inha
US Patent 8,401,571 2013
- Sensing arrangement
T Ryhnen, K Hjelt
US Patent 7,813,534 2010
- Arrangement for authentication of a person
T Ryhnen, K Hjelt
US Patent 7,606,400 2009
- Acceleration sensor
K Hjelt, T Ryhanen, S Silanto, J Salminen
US Patent 7,350,424 2008
- System, method and computer program product for managing physiological information relating to a terminal user
K Hjelt, S Naukkarinen, J Nihtil, T Ryhnen, T Vitikainen
US Patent 7,278,966 2007
- Body fat monitoring system and method employing mobile terminal
K Hjelt, K Nybergh, J Hyyrylinen, T Ryhnen, S Naukkarinen
US Patent 7,103,407 2006
- Terminal and associated method and computer program product for monitoring at least one activity of a user
K Hjelt, J Friman, J Jarvi, S Naukkarinen, J Ollikainen
US Patent App. 10/871,176 2005
- System and method for implementing sensor functionality in mobile devices
K Hjelt, S Naukkarinen, T Ryhanen, J Sairanen, J Salminen, S Silanto, ...
US Patent App. 10/607,832 2004
- Apparatus for measuring a small quantity of a liquid
MJ Vellekoop, KT Hjelt, GW Lubking
US Patent 6,796,174 2004
- Touch detection system for mobile terminals
J Mntyjrvi, K Nybergh, J Himberg, K Hjelt
International Conference on Mobile Human-Computer Interaction, 331-336 2004
- Measuring liquid volumes in subnanoliter wells
IT Young, KH Hjelt, LR van den Doel, MJ Vellekoop, LJ van Vliet
Biomedical Instrumentation Based on Micro-and Nanotechnology 4265, 75-80 2001
- Nanoliter droplet behavior in micromachined wells
KT Hjelt, GW Lubking, MJ Vellekoop, LJ van Vliet, LR van den Doel, ...
Sensors Update 8 (1), 39-70 2000
- Nanometer-scale height measurements in micromachined picoliter vials based on interference fringe analysis
LR Van den Doel, LJ van Vliet, KT Hjelt, MJ Vellekoop, F Gromball, ...
Proceedings 15th International Conference on Pattern Recognition. ICPR-2000 2000
- Measuring liquid evaporation from micromachined wells
KT Hjelt, R van den Doel, W Lubking, MJ Vellekoop
Sensors and Actuators A: Physical 85 (1-3), 384-389 2000
- High-resolution liquid volume detection in sub-nanoliter reactors
KT Hjelt, R van den Doel, W Lubking, MJ Vellekoop
Sensors and Actuators A: Physical 83 (1-3), 61-66 2000