发明授权
US07092608B2 Polyimide optical materials, polyimide precursor solutions and optical waveguide elements
失效
聚酰亚胺光学材料，聚酰亚胺前体溶液和光波导元件
- 专利标题： Polyimide optical materials, polyimide precursor solutions and optical waveguide elements
- 专利标题（中）： 聚酰亚胺光学材料，聚酰亚胺前体溶液和光波导元件
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申请号： US11376167申请日： 2006-03-16
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公开(公告)号： US07092608B2公开(公告)日： 2006-08-15
- 发明人: Yoshiaki Kawamonzen , Toshio Nakayama
- 申请人： Yoshiaki Kawamonzen , Toshio Nakayama
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2002-318239 20021031
- 主分类号： G02B6/00
- IPC分类号： G02B6/00 ; G02B6/10
摘要：
Several novel polyimide materials are disclosed. One example is a polyimide material comprising heterocyclic polyimide having an unit represented by the following general formula (1): (wherein Φ1s may be the same or different and are individually a quadrivalent organic group, the Φ1s including at least 0.2 molar equivalent of a quadrivalent hetrocyclic group selected from the following Group (a), Ψ1s may be the same or different and are individually a bivalent organic group, and n is a positive integer).
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