- 2001 - 2003 National Institute for Agro-Environmental Sciences
- 2001 - 2003 Coordinator for Heavy Metal Research,
- 2003 - 現在 名城大学農学部環境土壌学研究室 教授
- 2003 - - Professor, Laboratory of Environmental Soil
- 1995 - 2001 Ministry of Agriculture, Forestry and Fisheries
- 1995 - 2001 Head of Laboratory. National Institute of
- 1993 - 1995 Ministry of Agriculture, Forestry and Fisheries
- 1993 - 1995 Senior Researcher, National Agricultural
- 1988 - 1993 Ministry of Agriculture, Forestry and Fisheries
- 1988 - 1993 Senior Researcher, National Tropical
- 1983 - 1988 Ministry of Agriculture, Forestry and Fisheries
- 1983 - 1988 Research Officer, National Hokkaido
- 1969 - 1983 Ministry of Agriculture, Forestry and Fisheries
- 1969 - 1983 Research Officer, National Institute of
- University
- Science, Faculty of Agriculture, Meijo
- Science, Ministry of Agriculture
- National Institute for Agro-Environmental
- Agro-Environmental Science, Ministry of
- Research Center, ministry of Agriculture
- Agricultural Research Center, Ministry of
- Ministry of Agriculture
- Agricultural Experimental Station,
- Agriculture
- Agircultural Science, Ministry of
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日本土壌肥料学会
, 日本腐植物質学会
, 日本熱帯農業学会
, 日本ペドロジスト学会
, 日本土壌微生物学会
, Japanese Society of Soil Science and Plant Nutrition
, Japanese Society of Humic Substance Research
, Japanese Society for Tropical Agriculture
, Japanese Socity of Pedology
, Japanese Society of Soil Microbiology