发明授权
- 专利标题： Optical recording medium
- 专利标题（中）： 光记录介质
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申请号： US135893申请日： 1987-12-21
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公开(公告)号： US4770975A公开(公告)日： 1988-09-13
- 发明人: Sumio Hirose , Hiroshi Ozawa , Kenji Abe , Yoichi Hosono
- 申请人： Sumio Hirose , Hiroshi Ozawa , Kenji Abe , Yoichi Hosono
- 申请人地址： JPX both of JPX both of
- 专利权人： Mitsui Toatsu Chemicals, Inc.,Yamamoto Chemicals, Inc.
- 当前专利权人： Mitsui Toatsu Chemicals, Inc.,Yamamoto Chemicals, Inc.
- 当前专利权人地址： JPX both of JPX both of
- 优先权： JPX60-4537 19850114
- 主分类号： B41M5/26
- IPC分类号： B41M5/26 ; G11B7/244 ; G11B7/248 ; G03C1/72 ; G03C1/78
摘要：
Disclosed herein is an optical recording medium permitting recording and reading-out of signals without any reflective layer. The optical recording medium comprises a transparent substrate and an optical recording layer provided directly on the substrate. The recording layer contains at least 80 wt. % of a naphthalocyanine dye represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be either the same or different and mean individually a straight-chain or branched alkyl group having 5-12 carbon atoms and M denotes a metal or a metal oxide or halide.
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