Optical recording medium and method of producing the same
Abstract
An optical recording medium 10 comprises a disc body 11, a white ink layer 12 provided on the label side 11b of the disc body 11, and an ink receiving layer 13 provided on the surface 12a of the white ink layer 12. The mean roughness (Ra) of the surface 12a of the white ink layer 12 is set not greater than 0.2 µm. A step radially extended is left on the surface 13a of the ink receiving layer 13 and set not greater than 1.0 µm. As the mean roughness (Ra) of the surface 12a of the white ink layer 12 is not greater than 0.2 µm or as the step on the ink receiving layer 13 is not greater than 1.0 µm, high printing quality can be secured when printing is done with an ink-jet printer.

Term
Term ended
Projected expiry passed 23 July 2024, 2.2 years ago.
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- Filed
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- Projected expiry
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1 sheet
Sheet 1
Every citation, both waysCites: the store holds 11 of 12
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| EP1154418A2 | Cites | European Patent Office (EPO) | XA | Search report | 6-8 |
| EP1296319A1 | Cites | European Patent Office (EPO) | A | Search report | 6,10,11 |
| EP1304691A2 | Cites | European Patent Office (EPO) | YA | Search report | 3,4 |
| US2002142236A1 | Cites | United States of America | A | Search report | 1-5 |
| US2003081093A1 | Cites | United States of America | A | Search report | 6,10,11 |
| US2003138607A1 | Cites | United States of America | YA | Search report | 1-4 |
| US5470691A | Cites | United States of America | A | Search report | 1-5 |
| US5616447A | Cites | United States of America | A | Search report | 1-5 |
| US5616450A | Cites | United States of America | A | Search report | 1-5 |
| US5920329A | Cites | United States of America | YA | Search report | 1-4 |
| US6291031B1 | Cites | United States of America | A | Search report | 6,10,11 |
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 09 13 October 2000 (2000-10-13) | Non-patent | – | – | Search report | – |
8 members in 4 offices
Priority claims10
| Document | Office | Kind | Date |
|---|---|---|---|
| 2003280417 | Japan | A | |
| 2003280417 | Japan | A | |
| 2003280417 | Japan | – | |
| 2003280418 | Japan | A | |
| 2003280418 | Japan | A | |
| 2003280418 | Japan | – | |
| 2003280417 | – | – | – |
| 2003280418 | – | – | – |
| JP20030280417 | – | – | – |
| JP20030280418 | – | – | – |
Members8
| Document | Office | Kind | |
|---|---|---|---|
| EP1501089A2 | European Patent Office (EPO) | A2 | |
| JP2005044478A | Japan | A | |
| JP2005044479A | Japan | A | |
| TW200509118A | Taiwan Province of China | A | |
| US2005053749A1 | United States of America | A1 | |
| US6984433B2 | United States of America | B2 | |
| TWI265513B | Taiwan Province of China | B | |
| EP1501089A3This record | European Patent Office (EPO) | A3 |
10 legal events, as 2 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Designated country de not longer valid8566 | 8566 | DE | |
| Application deemed to be withdrawnWithdrawn18D | 18D | EP | |
| Designation fees paidAKX | AKX | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 1501089
- Publication, DOCDB
- 1501089
- Publication, EPODOC
- EP1501089
- Application
- 4017547
- Application, DOCDB
- 04017547
- Application, EPODOC
- EP20040017547
Titles3
- German
- Optisches Aufzeichnungsmedium und Verfahren zur Herstellung desselben
- English
- Optical recording medium and method of producing the same
- French
- Support d' enregistrement optique et méthode de production de celui-ci
Classification
- CPC, 6
- G11B23/40
- B41M5/506
- B41M5/508
- B41M2205/12
- G11B7/266
- Y10T428/21
- IPC, 4
- G11B7 24
- G11B7 26
- B32B3 02
- G11B23 40
Designated states2
- Contracting states, 1
- Türkiye
- Extension states, 1
- North Macedonia