会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 67. 发明申请
    • OPTICAL INFORMATION RECORDING MEDIUM AND NEAR-INFRARED ABSORBING MATERIAL USED THEREIN
    • 光信息记录介质和近红外吸收材料
    • WO1995007189A1
    • 1995-03-16
    • PCT/JP1994001500
    • 1994-09-09
    • RICOH COMPANY, LTD.TOMURA, TatsuyaSATO, TsutomuSASA, Noboru
    • RICOH COMPANY, LTD.
    • B41M05/26
    • G11B7/248C09B47/0675Y10S428/913Y10S430/146
    • A phthalocyanine near-infrared absorbing material having a silyl group as a bulky substituent introduced into the benzene ring of the phthalocyanine skeleton, and an optical information recording medium containing the material. This material is excellent in the ability to inhibit association and lightfastness, has a high refractive index in a wavelength region of 770-830 nm, and is highly safe. As a result, an optical information recording medium (a CD-R recording medium) made of this material has a high reflectance and excellent storage and reproduction stabilities. Further this medium has high absorptivity and light reflectivity in a wavelength region of 630-720 nm and is applicable to a pickup using a 630-720 nm semiconductor laser. Thus it can achieve a recording density 1.6-1.7 times as high as that of the current recording medium adapted for use in a wavelength region of 770-830 nm.
    • 具有引入到酞菁骨架的苯环中的大体积取代基的甲硅烷基的酞菁近红外吸收材料和含有该材料的光学信息记录介质。 该材料在抑制缔合和耐光性的能力方面优异,在770-830nm的波长区域具有高折射率,并且是高度安全的。 结果,由该材料制成的光学信息记录介质(CD-R记录介质)具有高反射率和优异的存储和再现稳定性。 此外,该介质在630-720nm的波长区域中具有高吸收率和光反射率,并且可应用于使用630-720nm半导体激光器的拾取器。 因此,可以达到适用于770-830nm波长区域的当前记录介质的记录密度的1.6-1.7倍。