Invention Grant
- Patent Title: Informaton recording medium and manufacturing method of the same
- Patent Title (中): 信息记录介质和制造方法相同
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Application No.: US12327749Application Date: 2008-12-03
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Publication No.: US08192819B2Publication Date: 2012-06-05
- Inventor: Ippei Maekawa , Tomonori Endo , Mamoru Uchida , Yuki Takei , Yuaki Shin
- Applicant: Ippei Maekawa , Tomonori Endo , Mamoru Uchida , Yuki Takei , Yuaki Shin
- Applicant Address: JP Tokyo
- Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP2007-335539 20071227
- Main IPC: B32B3/02
- IPC: B32B3/02

Abstract:
Disc-shaped information recording medium comprising optical penetrating substrate having colored underlayer and ink receipt layer in this order on the principal surface of one side of the substrate, wherein the ink receipt layer contains inorganic fine particles, a binder, and a crosslinking agent, and wherein a pore diameter distribution of a gap of the ink receipt layer has a maximum peak in the range of 30 nm or more when the ink receipt layer is measured with a mercury porosimetry method. Since the shrinkage force functioning in the pores of the gaps of the ink receipt layer weakens, a disc-shaped information recording medium having a reduced occurrence of warp is provided.
Public/Granted literature
- US20090169798A1 INFORMATON RECORDING MEDIUM AND MANUFACTURING METHOD OF THE SAME Public/Granted day:2009-07-02
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