| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-3022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-48576 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-485
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-30 |
| filingDate |
1987-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1988-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c60fbe87438b60b99100f0ff52ea4842
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_18ec88f6835cbc5e7d08638c89faa24f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_799c76e6b7832c630822dcafc3a32785 |
| publicationDate |
1988-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4789627-A |
| titleOfInvention |
Method for forming direct positive color images |
| abstract |
In a method for forming a direct positive color image which comprises image-wise exposing to light a light-sensitive material comprising a support having provided thereon at least one photographic emulsion layer contaiing unfogged internal latent image type silver halide grains and a color image-forming coupler; developing the light-sensitive material with a surface developing solution containing an aromatic primary amine type color developing agent in the presence of a nucleating agent and/or fogging exposure; bleaching and fixing the resulting material to form the direct positive color image, the improvement is characterized in that the developing solution has a pH of 11.5 or less and does not substantially contain benzyl alcohol; the color coupler is a compound which forms or releases a substantially non-diffusive dye by oxidation coupling with a developing agent, and the internal latent image type silver halide grains have a particular core/shell structure. According to the method, a direct positive color image having a high maximum color density and a low minimum image density can be obtained in a short time. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5081009-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4996137-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-H972-H
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4945033-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5037726-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5232823-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4956267-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4966833-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4954427-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4931378-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0262930-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5691121-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4933265-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5155014-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0262930-A3 |
| priorityDate |
1906-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |