Research keywords (5)：
騒音
, 音響
, numerical analysis of sound field
, noise barrier
, Road traffic noise
Research theme for competitive and other funds (5)：
2012 - 2015 防災音声放送の聞こえにくさを「見せる化」するハザードマップの推計手法
2001 - 2003 Numerical and experimental research on road traffic noise propagation for various type of road structure and development of environmental noise prediction method
2003 - Evaluation method for the efficiency of edge-improved noise barriers
1999 - Acoustic and vibration properties of piezoelectric materials with negative capacitance circuits.
1999 - Sound shielding efficiency of absorbing louvers.
Papers (9)：
Toshio Matsumoto, Tomonao Okubo, Kohei Yamamoto. Prediction of sound insulation of absorptive louvers. The Journal of the Acoustical Society of Japan. 2011. 67. 9. 385-394
Efficiency of a barrier against road traffic noise in refracting atmosphere
(internoise 2011 2011)
Effective size of absorbing surface around the top edge of noise barrier
(internoise 2010 2010)
Noise barriers with diffraction-reducing devices on top edge : Propagation prediction applying intrinsic efficiencies determined by impulse-response measurement
(2009)
Barriers against road traffic noise : relationship between LAeq reduction at roadside and LpA reduction determined in normal-incidence alignment
(2008)
Intrinsic efficiency of edge-modified noise barriers: efficiency determination of practical products and prediction of the diffracted sound field
(internoise 2007 2007)
Education (5)：
1996 - 1999 Kyushu Institute of Design
- 1999 Kyushu Institute of Design Graduate School, Division of Art and Technology
1994 - 1996 Kyushu Institute of Design
1990 - 1994 Kyushu Institute of Design
- 1994 Kyushu Institute of Design Faculty of Art and Technology
Professional career (2)：
Dr Eng (*Kyushu Institute of Design*)
(BLANK)
Work history (4)：
1999/04 - 現在 (財)小林理学研究所
1999 - 2004 Assistant Researcher, Kobayashi Institute of Physical
2004 - - Researcher, Kobayashi Institute of Physical
