发明名称 |
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摘要 |
PURPOSE:To control the coupling ratio between waveguides so that it becomes a required balue by heating the commonly connecting portions of respective waveguides to allow the diffusion of the waveguide portions to take place. |
申请公布号 |
JPS5926006(B2) |
申请公布日期 |
1984.06.23 |
申请号 |
JP19770005415 |
申请日期 |
1977.01.22 |
申请人 |
NIPPON TELEGRAPH & TELEPHONE |
发明人 |
NAKAGOME HIROSHI;TSUCHA HARUHIKO |
分类号 |
H04B10/29;G02B6/122;G02B6/28;G02B27/10;H04B10/00;H04B10/07;H04B10/27 |
主分类号 |
H04B10/29 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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