http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S61253637-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C14-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C14-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-667 |
| filingDate | 1985-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc4f98e0141f2eefdc7752c0c748a2df http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c856a3473610a03ccfb26b8d51c009e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1025b225e5ad5ad77e64dd1182167d1a |
| publicationDate | 1986-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S61253637-A |
| titleOfInvention | Production of vertical magnetic recording medium |
| abstract | PURPOSE: To improve the durability and productivity of the titled vertical magnetic recording medium by providing cobalt oxide on the vertical magnetic recording layer with a DC magnetron sputtering method in an oxidizing gas atmosphere. n CONSTITUTION: A high-permeability metallic thin film 2 consisting of a nickel- iron alloy and a vertical magnetic recording layer 3 consisting of a cobalt- chromium alloy thin film are successively laminated on both surfaces of a substrate 1 of polyethylene terephthalate by using an opposed target system sputtering device to obtain a both-faces 2-layered medium. Then a continuous DC magnetron sputtering device is used on the both-faces 2-layered medium, metallic cobalt is used as the target, a gaseous Ar contg. 5W50vol% oxygen is introduced into the device as a sputtering gas and the gaseous pressure during sputtering is kept at about 0.4W2.0pa. A DC voltage is impressed on the target to form a protective layer 4 on the both-faces 2-layered film medium and a vertical magnetic recording medium having reddishWbluish metallic luster is obtained. n COPYRIGHT: (C)1986,JPO&Japio |
| priorityDate | 1985-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.