| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0e7f7286c46e676b1bc0daf37b9f6c63 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24942
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-257
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-90 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70673
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70642 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-706 |
| filingDate |
1979-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1982-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c9e6f6fdc5642913367ec41ebd038fb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19bcc8dc9f3e653781c1dd0b795450fb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4c386ac4afea29e7adf141133dc1e3b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02405d3a77d606ecf0ae5de50ea620f5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_540bb733c20dc58a653c2fa84993e5e2 |
| publicationDate |
1982-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4364988-A |
| titleOfInvention |
Magnetic recording medium |
| abstract |
An improved magnetic recording medium is disclosed, particularly a magnetic tape suitable for sound recording and video recording, which comprises as a recording element a mixture of cobalt-containing iron oxide magnetic particles consisting essentially of ferromagnetic iron oxide particles containing cobalt and optionally a divalent iron in the most outer layer thereof, and gamma -ferric oxide particles in the ratio of 10:90 to 50:50 by weight, said mixture of cobalt-containing iron oxide magnetic particles and gamma -ferric oxide particles being applied to a substrate (e.g. a polyester film) with a binding agent. The magnetic recording medium has excellent electromagnetic transducing properties and improved charging properties and is useful for conventional magnetic recording apparatus used at normal position with high sensitivity in wide range of frequency. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4919776-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5479311-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6194058-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4500599-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4824587-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4565726-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4614685-A |
| priorityDate |
1978-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |