Distinguished Researchers

Norio KUMADANorio KUMADA received his B.S., M.S., and Ph.D. degrees in physics from Tohoku University, Japan, in 1998, 2000, and 2003, respectively. He joined NTT Basic Research Laboratories, Nippon Telegraph and Telephone Corporation in 2003. Since then, he has been engaged in the study of highly correlated electronic states in two-dimensional systems. He was a visiting researcher at CEA Saclay during 2013-2014. He was appointed as Distinguished Scientist of NTT in 2010. He is currently a member of Quantum Solid State Physics Research Group.
He received the Young Scientist Award of the Physical Society of Japan in 2008, and the Young Scientists’ Prize from the Minister of Education, Culture, Sports, Science and Technology in 2012. He is a member of the Physical Society of Japan.
Katsuhiko NISHIGUCHIKatsuhiko NISHIGUCHI received his B.E., M.E., and Ph.D. in electrical engineering from Tokyo Institute of Technology, Japan in 1998, 2000, and 2002, respectively. He joined NTT Basic Research Laboratories, Nippon Telegraph and Telephone Corporation in 2002. Since then, he has been engaged in the research on physics and technology of Si nanometer-scale devices for LSI applications with low power consumption and new functions. He was an invited researcher at the National Center for Scientific Research (CNRS), France during September 2008 and also a guest researcher at Delft University of Technology, Delft, the Netherlands during 2012-2013. He was appointed as Distinguished Scientist of NTT in 2011. He is currently a member of Nanodevices Research Group.
He received IUPAP Young Author Best Paper Award at the International Conference on Physics of Semiconductors 2000, Graduate Student Award Silver at the Materials Research Society 2000 Fall Meeting, Young Scientist Award at the Japan Society of Applied Physics Spring Meeting in 2000, JSAP Outstanding Paper Award 2013, and the Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology of Japan (the Young Scientists' Prize) in 2013. He is a member of the Japan Society of Applied Physics and the IEEE.
Shiro SAITO Shiro SAITO received his B.E., M.E., and Ph.D. degrees in applied physics from The University of Tokyo, Japan, in 1995, 1997, and 2000, respectively. He joined NTT Basic Research Laboratories, Nippon Telegraph and Telephone Corporation in 2000. Since then, he has been engaged in quantum information processing using superconducting circuits. He was a guest researcher at Delft University of Technology, Delft, the Netherlands during 2005-2006. He is a guest associate professor in Tokyo University of Science from 2012. He was appointed as Distinguished Scientist of NTT in 2012. He is currently a member of Hybrid Nano-Structure Physics Research Group.
He received the Young Scientist Presentation Award at the Japan Society of Applied Physics (JSAP) Spring Meeting in 2004. He is a member of the Physical Society of Japan and the Japan Society of Applied Physics.
Hiroki TAKESUEHiroki TAKESUE received his B.E., M.E., and Ph.D. degrees in engineering science from Osaka University, Japan, in 1994, 1996, and 2002, respectively. He joined NTT Access Network Systems Laboratories, Nippon Telegraph and Telephone Corporation in 1996 and moved to NTT Basic Research Laboratories in 2003. Since then, he has been engaged in research on quantum communications and novel computation schemes based on nonlinear optics. He was appointed as Distinguished Scientist of NTT in 2013. He is currently a member of Quantum Optical State Control Research Group.
He received several awards including the ITU-T Kaleidoscope Conference 2nd Best Paper Award (2nd place) in 2008 and the Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology of Japan (the Young Scientists' Prize) in 2010. He was a Visiting Scholar at Stanford University, Stanford, CA from 2003 to 2004, and a guest researcher at the National Institute of Standards and Technology (NIST), Boulder, CO in 2014. He is a member of IEEE and the Japan Society of Applied Physics.
Imran MAHBOOBImran MAHBOOB received a combined B.Sc. and M.Sc. degree in Theoretical Physics from The University of Sheffield, U.K., in 2001 and Ph.D. degree in Physics studying the electronic properties of nitride semiconductors from The University of Warwick, U.K., in 2004, respectively. He joined NTT Basic Research Laboratories, Nippon Telegraph and Telephone Corporation in 2005 as a Research Associate, from 2008 as a Research Specialist, and from 2012 as a Senior Research Scientist. During this period he studied nonlinear dynamics in electromechanical resonators with notable achievements including mechanical memory and logic processors, parametric frequency conversion, parametric mode coupling, all-mechanical phonon-lasing, two-mode squeezed states all using phonons for the first time. Since 2017 he has been engaged in the development of microwave quantum optics for quantum technology applications. He was appointed as Distinguished Scientist of NTT in 2013. He is currently a member of Hybrid Nano-Structure Physics Research Group.
He received the Clarke Prize in Physics from the University of Sheffield in 2001 and the Young Scientist Award at the 2003 Physics of Semiconductors and Interfaces conference. He is a member of the American Physical Society.
Haruki SANADAHaruki SANADA received his B.E., M.E., and Ph.D. degrees in electrical engineering from Tohoku University, Japan, in 2001, 2002, and 2005 respectively. He joined NTT Basic Research Laboratories, Nippon Telegraph and Telephone Corporation in 2005. His research interests are optical and spin properties of low-dimensional semiconductor nanostructures, and their application to solid-state quantum information processing. He is a visiting researcher at Chalmers University of Technology, Sweden in 2015. He was appointed as Distinguished Scientist of NTT in 2014. He is currently a member of Quantum Optical Physics Research Group.
He received the Young Scientist Presentation Award at the Japan Society of Applied Physics (JSAP) Autumn Meeting in 2004, the SSDM Paper Award in 2010, the RIEC Award from Tohoku University in 2014, and the Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology of Japan (the Young Scientists' Prize) in 2016. He is a member of the Japan Society of Applied Physics.
Yoshiharu KROCKENBERGERYoshiharu KROCKENBERGER received his diploma in physics from The University of Technology of Munich, Germany, studying tunneling spectroscopy on superconductors. Working at the Max Planck Institute for Solid State Research in Stuttgart, Germany, on transition metal oxides with strong electron correlations he received his Ph.D. degree from The University of Technology of Darmstadt, Germany in 2006. At the end of 2006 he joined the Correlated Electron Research Center at The Institute for Advanced Industrial Science and Technology in Tsukuba, Japan as a research scientist. In 2008, he moved to RIKEN in Wako, Japan where he was engaged as a research scientist at the Cross-Correlated Materials Research group. He joined NTT Basic Research Laboratories, Nippon Telegraph and Telephone Corporation in 2010. His interests are development of novel superconducting materials and competing order parameters in strongly-correlated electronic systems. He was appointed as Distinguished Scientist of NTT in 2013. He is currently a member of Low-Dimensional Nanomaterials Research Group.
He received the Young Scientist Award for an Excellent Article from Superconductivity Division of Japan Society of Applied Physics in 2012. In 2016, the Society for Non-Traditional Technology awarded his contributions to research in superconductivity. He is a member of American Physical Society, Materials Research Society, and the Japan Society of Applied Physics.
Kazuhide KUMAKURAKazuhide KUMAKURA received his B.E., M.E., and Ph.D. degrees in engineering from Hokkaido University, Japan, in 1993, 1995, and 1998, respectively. He joined NTT Basic Research Laboratories, Nippon Telegraph and Telephone Corporation in 1998. His current interests are highly efficient energy conversion devices using nitride semiconductors and two-dimensional layered materials. He was a visiting researcher at Paul-Drude-Institute, Germany during 2007-2008. He was appointed as Distinguished Scientist of NTT in 2015. He is currently a group leader of Thin-Film Materials Research Group and Low-Dimensional Nanomaterials Research Group.
He received the Young Scientist Presentation Award at the Japan Society of Applied Physics Spring Meeting in 2000. He is a member of the Japan Society of Applied Physics.
William J. MUNROKengo NOZAKI received his B.E., M.E., and Ph.D. degrees in electrical engineering from Yokohama National University, Japan, in 2003, 2005, and 2007 respectively. He joined NTT Basic Research Laboratories, Nippon Telegraph and Telephone Corporation in 2008. His current interests are ultralow-power nanophotonic semiconductor devices based on photonic crystal. He was appointed as Distinguished Scientist of NTT in 2016. He is currently a member of Photonic Nanostructure Research Group.
He received the Best Paper Award at Photonics in Switching 2012, and the Young Researchers Award from IEICE Lasers and Quantum Electronics in 2014, and the Best Paper Award from OECC/PS in 2016. He is a member of the Japan Society of Applied Physics.