发明授权
- 专利标题: Optical information recording medium
- 专利标题(中): 光信息记录介质
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申请号: US808413申请日: 1985-12-12
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公开(公告)号: US4714667A公开(公告)日: 1987-12-22
- 发明人: Tsutomu Sato , Masaakira Umehara , Michiharu Abe , Hideaki Oba , Yutaka Ueda
- 申请人: Tsutomu Sato , Masaakira Umehara , Michiharu Abe , Hideaki Oba , Yutaka Ueda
- 申请人地址: JPX Tokyo
- 专利权人: Ricoh Co., Ltd.
- 当前专利权人: Ricoh Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX59-265247 19841218
- 主分类号: B41M5/26
- IPC分类号: B41M5/26 ; G11B7/24 ; G11B7/244 ; G11B7/247 ; G03C1/72
摘要:
The present invention relates to an optical information recording medium comprising a recording layer applied directly on a substrate or applied on a substrate by intervening an underlayer therebetween, and further comprising a protective layer on said recording layer if necessary, characterized in that said recording layer contains at least one of the compounds expressed by the following general formula (I) or (II): ##STR1## (wherein in the above formulas, X.sub.1 to X.sub.3 represent O, S or Se; A.sup.- represents an anion; l, m or n represents 0 or 1; R.sub.4 represents a substituted or non-substituted aryl group or heterocyclic group; R.sub.3, R.sub.5, R.sub.6, R.sub.9, R.sub.10 and R.sub.11 represent hydrogen or an alkyl group; R.sub.1, R.sub.2, R.sub.7, R.sub.8, R.sub.12, and R.sub.13 represent hydrogen or a substituted or non-substituted alkyl, aryl or styryl group; Z.sub.1, Z.sub.3 and Z.sub.5 represent atomic groups necessary for forming a substituted or non-substituted pyrylium, thiapyrylium, selenapyrylium, benzopyrylium, benzothiapyrylium, benzoselenapyrylium, naphthopyrylium, naphthothiapyrylium or naphthoselenapyrylium; Z.sub.2 and Z.sub.4 represent atomic groups necessary for forming a substituted or non-substituted five-membered ring or six-membered ring; and said five-membered ring and six-membered ring may be condensed with an aromatic ring).
公开/授权文献
- US5914935A Traffic shaper apparatus 公开/授权日:1999-06-22
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