1) Evaluation for soil suppressiveness of plant diseases
Patent number 3051920 (Japan)
Date of publication of application : 13.06.2000
Date of registration 07.04.2000
Inventor : Naoyuki Matumoto and kazunari Yokoyama
2) New plant growth inhibitory ingredients and their formula
Patent number 3099058 (Japan)
Date of publication of application : 08.09.1998
Date of registration 18.08.2000
Inventor : Syuntaro Hiradate, Hiroshi Yata, Hajime Sugie and Yoshiharu Fujii
3) Sulfoxide compounds and plant growth-inhibitor
Patent number 3163377 (Japan)
Date of publication of application : 27.01.1998
Date of registration 02.03.2001
Inventor : Yoshiharu Fujii, Jiro Harada, Syuntaro Hiradate, Sadaya Sano, Hajime Ohigashi and Nobuhiro Hirai