JP02078692  为什么在欧洲专利局上搜不到

Nasu, Rikuo; Kimura, Shinichi; Asai, Nobuyoshi.   Preparation of S,O-dialkyl (2-oxo-3-thiazolidinyl)phosphonothiolates as insecticides, acaricides, nematocides, and soil pesticides.    Jpn. Kokai Tokkyo Koho  (1990),     3 pp.  CODEN: JKXXAF  JP02078692  A  19900319  Heisei.   CAN 113:59170  AN 1990:459170    CAPLUS   (Copyright (C) 2009 ACS on SciFinder (R))
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修改:factory FROM 61.182.194.*
FROM 61.182.194.*