GUIDED-WAVE OPTICAL BRANCHING COMPONENTS AND OPTICAL SWITCHES,申请号EP19900301204-传众专利搜索

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发明名称	GUIDED-WAVE OPTICAL BRANCHING COMPONENTS AND OPTICAL SWITCHES
摘要
申请公布号	EP0382461(A3)	申请公布日期	1991.11.27
申请号	EP19900301204	申请日期	1990.02.06
申请人	NIPPON TELEGRAPH AND TELEPHONE CORPORATION	发明人	KAWACHI, MASAO;JINGUJI, KANAME;TAKATO, NORIO;TAKAGI, AKIHIRO
分类号	G02B6/12;G02B6/28;G02B6/34;G02F1/313;(IPC1-7):G02B6/28;G02F1/21	主分类号	G02B6/12
代理机构		代理人
主权项
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