| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fb3a5b317d14bd5a8e561f47b90fd01c |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F1-54 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F1-54 |
| filingDate |
1967-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1971-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9770fef92be0d65ba613089b537ffb81
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f45fb89cba941c4677e2bf2b9b1b41d |
| publicationDate |
1971-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3592649-A |
| titleOfInvention |
Color photographic process for producing visually transparent but photographically opaque photomasks |
| abstract |
PHOTOMASKS AND A PROCESS FOR PRODUCING THE SAME WHICH COMPRISES PREHARDENING A HIGH RESOLUTION PHOTOGRAPHIC PLATE CONTAINING A LATENT PHOTOGRAPHIC IMAGE IN A PREHARDENING BATH, DEVELOPING THE PLATE IN A DEVELOPER CONTAINING A MAGENTA AND A YELLOW DYE COUPLER AND APPROPRIATE DEVELOPING AGENTS AND THEN BLEACHING AND STABILIZING THE RESULTANT PLATE. A PHOTOMASK IS OBTAINED CONTAINING A DYE IMAGE IN PLACE OF THE NORMAL OPAQUE BACKGROUND. IT IS USEFUL IN PHOTOMECHANICAL REPRODUCTION, PARTICULARLY WITH POSITIVE PHOTORESISTS IN THE PRODUCTION OF SEMICONDUCTIVE DEVICES, AND ESPECIALLY WHERE MULTIPLE REGISTERING AND PRINTING OPERATIONS ARE REQUIRED. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4386143-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4271246-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4286051-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2919084-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4336316-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3744904-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4168168-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3960565-A |
| priorityDate |
1967-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |