- 2013/04 - 2022/03 Forestry and Forest Products Research Institute
- 2013/04 - 2016/03 Yatsugatake Center Farm College Principal
- 2008/04 - 2013/03 Forestry and Forest Products Research Institute Kansai Research Cente Director General
- 2006/04 - 2008/03 Kyoto University Research Institute for Sustainable Humanosphere Visiting Lecturer
- 2005/04 - 2008/03 Forestry and Forest Products Research Institute Tama Forest Science Garden Director General,
- 2003/04 - 2005/04 Forestry and Forest Products Research Institute Research Planning and Coordination Division Section Chief, Research Planning Section
- 2001/04 - 2003/03 Forestry and Forest Products Research Institute Department of Wood Properties Director
- 2002/04 - 2002/09 The University of Tokyo Department of Biomaterials Science, Faculty of Agriculture Visiting Lecturer
- 2001/03 - 2001/03 Forestry and Forest Products Research Institute Wood Technology Division Section Director, Wood Properties Section,
- 1999/04 - 2001/02 Forestry and Forest Products Research Institute World Forest Resources Research Team Team Leader
- 1997/04 - 1999/03 Forestry and Forest Products Research Institute Research Planning and Coordination Division Head of Research Planning Office
- 1999/02 - 1999/02 Shimane University Interdisciplinary Faculty of Science and Engineering
- 1995 - 1999 Ministry of Agriculture, Forestry and Fisheries
- 1993/04 - 1997/03 Forestry and Forest Products Research Institute
- 1989/04 - 1997/03 Forestry and Forest Products Research Institute Wood Technology Division Chief of Wood Anatomy Laboratory,
- 1988 - 1997 Ministry of Agriculture, Forestry and Fisheries
- 1993/05 - 1994/03 University of Tsukuba Institute of Agricultural and Forest Engineering Visiting Professor
- 1987/04 - 1989/09 Forestry and Forest Products Research Institute Wood Anatomy Laboratory, Wood Technology Division Senior Research Scientist
- 1988/10 - 1989/03 Forestry and Forest Products Research Institute Wood Anatomy Laboratory, Wood Technology Division Senior Research Scientist
- 1988/01 - 1989/01 Rijksherbarium, University of Leiden, The Netherlands Visiting Research Scientist
- 1980/04 - 1987/03 Forestry and Forest Products Research Institute Wood Anatomy Laboratory, Wood Technology Division Research Scientist
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日本木材加工技術協会
, 日本植物形態学会
, 日本顕微鏡学会
, 日本木材学会
, 国際木材解剖学者連合
, Wood Technology Association of Japan
, The Japanese Society of Plant Morphology
, The Japanese Society of Electron Microscopy
, The Japan Wood Research Society
, The International Association of Wood Anatomists