Invention Grant
- Patent Title: Optical information recording medium
- Patent Title (中): 光信息记录介质
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Application No.: US11725367Application Date: 2007-03-19
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Publication No.: US07883756B2Publication Date: 2011-02-08
- Inventor: Mamoru Uchida , Tomonori Endo , Yuaki Shin , Yoshimasa Shimomura
- Applicant: Mamoru Uchida , Tomonori Endo , Yuaki Shin , Yoshimasa Shimomura
- 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: JP2006-075951 20060320
- Main IPC: B32B3/02
- IPC: B32B3/02

Abstract:
One inventive aspect relates to an optical information recording medium, in which the quality of a printed image is not impaired because the water resistance of a printed portion is improved. The optical information recording medium includes a porous film ink receiving layer as an outermost layer of a surface opposite to a recording and playback surface, wherein when the ink receiving layer is printed with an ink of each of four colors, cyan, magenta, yellow, and black, followed by drying, a running water test is performed, and L*a*b* values before and after the running water test are measured with a colorimeter, the total value of the square root of the sum of the square of difference in L*, the square of difference in a*, and the square of difference in b*, each between before and after the running water test, of each of the four colors is approximately 20 or less.
Public/Granted literature
- US20070248776A1 Optical information recording medium Public/Granted day:2007-10-25
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