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Multilayer Optical Recording Medium
Abstract: In a multilayer optical recording medium having at least three recording layers, an influence of interlayer crosstalk due to an unnecessary light is removed. Each of the recording layers includes an information recording area, and the recording layers other than the nearest recording layer and the fmthest recording layer when viewed from a light incident side include a first annular area having uneven patterns formed thereon, and a second annular area having uneven patterns formed thereon, the first annular area being adjacent to an inner side of the information recording area, the second annular area bcing adjacent to an outer side of the information recording area.
Notices, Deadlines & Correspondence
Patent Information
Applicants
Hitachi Ltd.
Hitachi Ltd.
Inventors
1. HIROTSUNE Akemi
2. HIROTSUNE Akemi
3. KIMURA Shigeharu
4. KIMURA Shigeharu
5. KUROKAWA Takahiro
6. KUROKAWA Takahiro
Specification
attached
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 740-del-2009-Form-5-(21-05-2009).pdf | 2009-05-21 |
| 2 | 740-del-2009-Correspondence-others-(21-05-2009).pdf | 2009-05-21 |
| 3 | Power of Authority.pdf | 2011-08-21 |
| 4 | Form-5.pdf | 2011-08-21 |
| 5 | Form-3.pdf | 2011-08-21 |
| 6 | Form-1.pdf | 2011-08-21 |
| 7 | 740-del-2009-Correspondence Others-(22-02-2012).pdf | 2012-02-22 |
| 8 | Power of Attorney.pdf | 2014-04-02 |
| 9 | Form 6.pdf | 2014-04-02 |
| 10 | Assignment.pdf | 2014-04-02 |
| 11 | 740-del-2009-GPA-(09-04-2014).pdf | 2014-04-09 |
| 12 | 740-del-2009-Form-2-(09-04-2014).pdf | 2014-04-09 |
| 13 | 740-del-2009-Correspondence Others-(09-04-2014).pdf | 2014-04-09 |
| 14 | 740-del-2009-Assignment-(09-04-2014).pdf | 2014-04-09 |
| 15 | 740-del-2009-Correspondence Others-(07-08-2014).pdf | 2014-08-07 |
| 16 | 740-DEL-2009_EXAMREPORT.pdf | 2016-06-30 |