Invention Grant
- Patent Title: Manufacturing method of a flexible optical disk
- Patent Title (中): 柔性光盘的制造方法
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Application No.: US11808225Application Date: 2007-06-07
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Publication No.: US07767117B2Publication Date: 2010-08-03
- Inventor: Shozo Murata , Nobuaki Onagi , Yasutomo Aman
- Applicant: Shozo Murata , Nobuaki Onagi , Yasutomo Aman
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Dickstein Shapiro LLP
- Priority: JP2003-129560 20030507; JP2003-323645 20030916
- Main IPC: G11B3/70
- IPC: G11B3/70 ; B29D17/00
Abstract:
A flexible optical disk, includes a disk substrate, wherein a rigidity of the disk is equal to or more than 5 Pa and equal to or less than 5000 Pa where the rigidity is defined as Young's modulus of the disk×(thickness of the disk/radius of the disk)3.
Public/Granted literature
- US20070248000A1 Manufacturing method of a flexible optical disk Public/Granted day:2007-10-25
Information query
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