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经营范围
发明名称
VARIABLE LIGHT WAVELENGTH FILTER
摘要
申请公布号
JPH1114952(A)
申请公布日期
1999.01.22
申请号
JP19970167809
申请日期
1997.06.25
申请人
NEC CORP
发明人
NAKAYA KENICHI
分类号
G02F1/125;(IPC1-7):G02F1/125
主分类号
G02F1/125
代理机构
代理人
主权项
地址
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