http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4859567-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-305 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-305 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-06 |
| filingDate | 1987-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1989-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03e82d24213e4368d4c689dcd5aedb28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4c693acf56c2ab0cc2824b194169bb8 |
| publicationDate | 1989-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4859567-A |
| titleOfInvention | Method of forming high contrast negative images |
| abstract | A method of forming a high contrast negative image is disclosed, comprising developing an imagewise exposed substantially surface latent image-type silver halide photographic material in the presence of a hydrazine derivative with a developer, said developer having a pH of 10.5 to 12.3 and containing (1) a developing agent, (2) not less than 0.25 mol/liter of a sulfite, (3) a compound represented by formula (I): Ar-R1)n (I), wherein Ar represents an aryl group, and R1 represents an alkyl group or an alkoxy group and n is an integer of from 1 to 3, and (4) a compound represented by formula (II): R2-SO3M (II), or a compound represented by formula (III): R3-COOM (III), wherein M represents a hydrogen atom, Na, K or NH4, and R2 and R3 each represents an alkyl group having at least 3 carbon atoms, an aryl group or a heterocyclic group. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4988603-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0429973-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0500370-A1 |
| priorityDate | 1986-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.