‎"Behind every stack of books there is a flood of knowledge."

Nobuyuki Umetani


    • Papers


    • Nobuyuki Umetani, Kenshi Takayama, Jun Mitani, Takeo Igarashi, “Responsive FEM for Aiding Interactive Geometric Modeling”, Computer Graphics & Applications (preprint)


    • Nobuyuki Umetani, Scott Maclachlan, Kees Oosterlee, “A Multigrid-Based Shifted-Laplacian Preconditioner for a Fourth-Order Helmholtz Discretization”,Numerical Linear Algebra with Applications,Volume 16, Issue 8, pp603-626,(2008)


  • Susumu Katayama, Nobuyuki Umetani, Seiryo Sugiura, and Toshiaki Hisada, “The sinus of Valsalva relieves abnormal stress on aortic valve leaflets by facilitating smooth closure”, The Journal of Thoracic and Cardiovascular Surgery, vol.136, no.6, pp.1528-1535,(2008)

International Conference

    • Yuki Koyama, Kenshi Takayama, Nobuyuki Umetani, Takeo Igarashi: “Real-Time Example-Based Elastic Deformation” SCA 2012(to appear)


    • Nobuyuki Uumetani, Kenshi Takayama, Jun Mitani, Takeo Igarashi : “Designing Custommade Metallophone with Concurrent Eigenanalysis”, NIME++ June 15-17th 2010 [pdf]


  • Yohsuke Furuta, Nobuyuki Umetani, Jun Mitani, Takeo Igarashi and Yukio Fukui: “A Film Balloon Design System Integrated with Shell Element Simulation”, EUROGRAPHICS Short Paper 2010, May 3rd-7th 2010


  • “Interactive Design Exploration of Physically Valid Shapes, Ph.D thesis, Department of Computer Science, The University of Tokyo, 2012 [LINK]

Domestic Journal

    • Nobuyuki Umetani, Kenshi Takayama, Jun Mitani, Takeo Igarashi, “Designing Custommade Metallophone with Real Time Eigenanalysis”, IPSJ Journal, Special Edition basic technology for interaction : design and it’s application, Vol. 52 No. 4 1599-1607 (Apr. 2011)


Domestic Proceedings

    • Nobuyuki Umetani, Kenshi Takayama, Jun Mitani, Takeo Igarashi, “Designing Custommade Metallophone with Concurrent Eigenanalysis”, 18th Workshop on Interactive Systems and Software (WISS 2010), (Dec. 2010),(best paper award)


More works can be found in my Japanease web page

Funding Source

    • The Microsoft Research Asia Fellowship 2011


    • JSPS Fellow (DC2), “Interactive user interfaces incorporating real time simulation”, April 2011 – March 2013.



  • The Exploratory IT Human Resources Project (Mitoh Youth Program), Information Technology Promotion Agency Japan(IPA), 2008


opening of heart valve

valve velo valve top valve msh
valve_velo.wmv   (845kB) valve_top.wmv   (373kB) valve_msh.wmv   (2473kB)

elastic contact of shin shell in fluid

image of noren1 image of noren2 image of noren3 image of noren4 image of noren5
image of noren6 image of noren7 image of noren8 image of noren9 image of noren10
Movie :   noren.mpg   (820kB)
Movie of FEM mesh :  mesh.mpg   (3220kB)

Muscle-driven dynamic simulation of calf

run_fib0.avi   (72MB) run_fib1.avi   (76MB) run_fib3.avi   (81MB)

More movies can be found at my Youtube Page 


DelFEM:handy environment for finite element analysis (FEA)[Link]

Private Photo

top of national road
At the heighest point of Japanease national road.
(September 2006)
I came all the way from Tokyo by this non-geared ordinary bycicle. It’s 2172m above the sea level!!!
top of mt fuji
Sunrise from the top of Mt.Fuji
(August 2006)
ski at matterhorn
Enjoy skiing at Matterhorn
(January 2008)
ski at matterhorn
Programming training at the top of Mt.Fuji
(September 2008)
TU-Delft Library
I studied in Applied Mathematics Dept of TU-Delft in Netherlands as an exchange student.
(April 2007 – March 2008)
Columbia University
I visited computer science departemnt of the Columbia University
(April 2010 – March 2011)


I like reading books. Here is my bookshelf GoodRead



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