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Professor Maheshwari (IIT Roorkee., India) visited my Lab. (September 2014)
Professor Nakhorn (Thammasat Univ., Thailand) visited my Lab. (April to May 2012)
Professor Tazoh (Toyama Prefectural University, previously Shimizu) visited my Lab.(December 6 2011)
Short Report_ver2: Evaluation of Constant-Ductility Response Spectra and Energy Equivalent Velocity Spectra Using Observed Earthquake Records in the Seismic Event of “2011 Tohoku-Pacific Earthquake” (March 29 2011)
Short Report: Evaluation of Acceleration Response Spectra Using Observed Earthquake Records in the Seismic Event of “2011 Tohoku-Pacific Earthquake” (March 24 2011)
Completion of Mechanical Interface of Soil-Foundation Systems. (videos etc.)
Jan 2011 Welcome to Saitama again, Professor George Mylonakis.(photo)
Feb. 2010 Professor George Mylonakis (University of Patras, Greece) visited my Lab.(photo)
Feb. 10/2010 The 1st workshop was held in Saitama University (pdf).
C.V. Summary

B.A. in Civil and Envinronmental Engineering Saitama University 1992
M.S. Saitama University 1996
D.E. Saitama University 2001

Researcher, Railway Techinical Research Institute, Japan 1996-2001
Research Associate, Saitama University 2001-2005
Associate Professor, Saitama University 2005-2014
Professor, Saitama University 2014-
Research and Papers

Researcher in the fields of earthquake engineering, soil, foundation and structures. The followings are selected papers.
1) Goit, C.S. and Saitoh, M. , Model tests on horizontal impedance functions of fixed-head inclined pile groups under soil nonlinearity. Journal of Geotechnical and Geoenvironmental Engineering, ASCE (accepted), 2014.
2) Saitoh, M., Formulas for Determining Structural Variables to Control the Maximum Deformations and Stored Energies in Structures with Elastic-Perfectly Plastic Springs under Monotonic Loading, Journal of Engineering Mechanics, ASCE, Vol.140(2), pp. 250-256, 2014. (Link)
3) Saitoh, M., An external rotary friction device for displacement mitigation in base isolation systems, Structural Control and Health Monitoring (published on line), DOI: 10.1002/stc.1560, 2013. (Link)
4) Goit, C.S, Saitoh, M., Oikawa, H., Kawakami, H., Effects of soil nonlinearity on the active length of piles embedded in cohesionless soil: model studies,Acta Geotechnica (published on line), DOI 10.1007/ s11440-013-0257-0, 2013. (Link)
5)Goit, C.S, Saitoh, M., Mylonakis, G., Kawakami, H., Oikawa, H., Model tests on horizontal pile-to-pile interaction incorporating local non-linearity and resonance effects,Soil Dynamics and Earthquake Engineering, Vol.48, pp.175-192, 2013. (Link)
6) Goit, C.S, Saitoh, M., Model tests and numerical analyses on horizontal impedance functions of inclined single piles embedded in cohesionless soil,Earthquake Engineering and Engineering Vibration, Vol.12, No.1, pp.143-154, 2013. (Link)
7) Saitoh, M., Saito, T., Hikima, T., Ozawa, M., Imanishi, K., Representation of Soil-Foundation Systems and Its Application to Shaking Table Tests by Constructing a Mechanical Interface,Earthquake Spectra, Vol.29, No.2, pp.547-571, 2013. (Link)
8) Masato, Saitoh.:Highly Reduced Lumped Parameter Models Representing Impedance Functions at the Interface of One-Dimensional Viscoelastic Continua,Journal of Vibration and Acoustics, Vol.134(3), pp.031008, 2012. 6. (Link)
9) Padron, L.A., Aznarez, J.J., Maeso, O., Masato Saitoh:Impedance functions of end-bearing inclined piles, Soil Dynamics and Earthquake Engineering, Vol.38, pp.97-108, 2012. 2 (Link)
10) Masato Saitoh:Lumped parameter models representing impedance functions at the end of a finite beam on a viscoelastic medium, Computers and Structures, Vol.92-93, pp.317-327, 2012. (Link)
11) Masato Saitoh:A one-dimensional lumped parameter model representing impedance functions in general structural systems with proportional damping, International Journal for Numerical Methods in Engineering, Vol.90, pp.353-368, 2012 (Link)
12) Masato Saitoh:On the performance of lumped parameter models with gyro‐mass elements for the impedance function of a pile‐group supporting a single‐degree‐of‐freedom system,Earthquake Engineering and Structural Dynamics, Vol.41, pp.623-641, 2012. (Link)
13) Masato Saitoh:Equivalent One-Dimensional Spring-Dashpot System Representing Impedance Functions of Structural Systems with Non-Classical Damping,CMES: Computer Modeling in Engineering & Sciences, Vol.67, No.3, pp.211-238, 2010. 11. (link) (pdf)
14) Masato Saitoh :Lumped parameter models representing impedance funcitons at the interface of a rod on a viscoelastic medium,Journal of Sound and Vibration, Vol.330, No.9, pp.2062-2072, 2011. (link)(pdf)
15) Masato Saitoh:Effect of local nonlinearity in cohesionless soil on optimal radius minimizing fixed-head pile bending by inertial and kinematic interactions,Acta Geotechnica, Vol.5, pp.273-286, 2010. 10. (link)(pdf)
16) Masato Saitoh :On the performance of gyro-mass devices for displacement mitigation in base isolation systems,Structural Control and Health Monitoring,Vol.19, pp.246-259,2010. 10. (link)(pdf)
17) Masato Saitoh:Simple Model of Frequency-Dependent Impedance Functions in Soil-Structure Interaction Using Frequency-Independent Elements,Journal of Engineering Mechanics, ASCE, Vol.133, No.10, pp.1101-1114, 2007. 10. (link)(pdf)
18) Masato Saitoh :Fixed-head pile bending by kinematic interaction and criteria for its minimization at optimal pile radius,Journal of Geotechnical and Geoenvironmental Engineering,ASCE,Vol.131,No.10,pp.1243-1251,2005. 10. (link)(pdf)
19) Masato Saitoh and Hiroyuki Watanabe:Effects of flexibility on rocking impedance of deeply embedded foundation,Journal of Geotechnical and Geoenvironmental Engineering,ASCE,Vol.130,No.4,pp.438-445,2004. 4 (link)

Best Speaker Award of JSCE Conference, 1997 and 1999
Best Paper Award of Japan Geotechnical Society, JGS, 2003
Editorial Board

Advisory Member of SET Journal of Earthquake Technology
Scientific and Technical Committee & Editorial Review Board on International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies

Journal of Geotechnical and Geoenvironmental Engineering, ASCE
Journal of Engineering Mechanics, ASCE
Journal of Soil Dynamics and Earthquake Engineering
Earthquake Engineering and Structural Dynamics
Indian Geotechnical Journal
Soils and Foundations, JGS
Journal of Structural Mechanics and Earthquake Engineering, JSCE
Recent Projects

Mechanical Interface of Soil-Foundation Systems, Ministory of Education, Japan (link)
TECHNICAL REPORT: Incorporating Gyromass Lumped Parameter Models (GLPMs) in OpenSees reported by Naba Raj Shrestha (link)
Key Words
soil-structure interaction, soil-foundation interaction, gyro-mass, mechanical interface