| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a62e909c20a010965e9aa840e4d59d62 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R9-047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R9-045 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-447
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R9-047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R9-045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10K11-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R9-025 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10K11-00 |
| filingDate |
2019-03-07^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-09-20^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d2dedef94c90efcdc4ee1224a471bd20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ee91c1a6feb43b214b9117ba67453c9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60296d9eec325b7e6f8c482979b94d64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6acb6c1b0ab6ff0e2d4b17a4d15a4046
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f77db460217cb102cbc3437679d88581 |
| publicationDate |
2022-09-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11450302-B2 |
| titleOfInvention |
Loudspeaker with magnets in ferrofluid |
| abstract |
A loudspeaker is provided with a motor assembly having at least one planar coil and first and second magnets magnetized in a magnetized direction perpendicular to direction of coil movement and perpendicular to a central axis of radiation of the loudspeaker. Ferrofluid is disposed between a diaphragm and the first and second magnets. Third and fourth magnets are disposed outside the first and second magnets and are magnetized in a direction parallel to the direction of coil movement and perpendicular to the magnetized direction of the first and second speakers. |
| priorityDate |
2018-03-07^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |