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Patent Searching and Data


Title:
【発明の名称】4,4’-ジヒドロキシジフェニルスルホンの精製方法
Document Type and Number:
Japanese Patent JP2641023
Kind Code:
B2
Inventors:
友田 裕一
牧野 公博
Application Number:
JP19925993A
Publication Date:
August 13, 1997
Filing Date:
July 16, 1993
Export Citation:
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Assignee:
NITSUKA KAGAKU KK
International Classes:
C07C315/06; C07C317/22; (IPC1-7): C07C317/22; C07C315/06
Attorney, Agent or Firm:
内山 充