| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f37bc8280d9fab4985ae5b7b7fd7fc6a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d93502a23a72b56472bc75854cfe7c60 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B9-068
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B9-06 |
| filingDate |
1980-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9b8edd22a60fb5afafb8030d9968be9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64e1fc2ffc8e45b0f926adeedf112d24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_90035c44329b2554b5ac01b73bb18b95
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6eda1adcd76aff85108d54b20401123
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74e9451a69a80e5f283de00994c0ab60 |
| publicationDate |
1981-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0029519-A2 |
| titleOfInvention |
Information signal record medium of the capacitance type |
| abstract |
An improvement is provided in and relating to a capacitance-type record medium wherein an information signal is recorded as a variation in the geometrical shape of its surface area, and is played back by the variation of the capacitance between its surface and an electrode of a reproducing stylus scanning the surface of the record medium relatively which occurs according to a variation in the geometrical shape of its surface area. The improvement consists in the fact that at least the surface area of the record medium is formed of (1) a material composed of an electrically conductive substance and a copolymer consisting of 98 to 65% by weight of vinyl chloride, 2 to 20% by weight of an alkyl vinyl ether with the alkyl group having 4 to 18 carbon atoms and/or a vinyl ester of a fatty acid in which the fatty acid residue has 4 to 18 carbon atoms and 0 to 15% by weight of another monomer copolymerizable with these compounds, or (2) a material composed of an electrically conductive substance and a polymer mixture consisting of at least two polymers in which the proportions of the constituent monomers are the same as in the aforesaid copolymer. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2138991-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0164275-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0164275-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2515852-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2544903-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2544533-A1 |
| priorityDate |
1979-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |