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发明名称
OPTICAL COUPLER
摘要
申请公布号
JPH021804(A)
申请公布日期
1990.01.08
申请号
JP19880142961
申请日期
1988.06.09
申请人
NEC CORP
发明人
OSHIMA YASUNOBU
分类号
G02B6/42;H01L31/02;H01L31/0232
主分类号
G02B6/42
代理机构
代理人
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地址
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