| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24a9b4f9b1a186ed70ead316d6c10c5e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8025f8325f239ec161952c028cd64d8a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R2307-027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R2307-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R2307-021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R2400-11 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R7-125
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R7-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R7-127
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R31-003 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R31-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R7-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R7-12 |
| filingDate |
2019-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e564b53eaf72ef4a208c4fb95542a1bd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fda49f04a300ed481ddda48eb6042bc2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a825f6e03632566f282335fd83d19fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7506b879750487159b5b7520e4abfd3 |
| publicationDate |
2020-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2020077195-A1 |
| titleOfInvention |
Speaker Diaphragm Structure |
| abstract |
A speaker diaphragm structure is installed inside a sound generator device which comprises a frame, a speaker diaphragm structure installed within the frame and a suspension edge whose inner perimeter is connected to the speaker diaphragm structure and whose outer perimeter is connected to the frame; herein the speaker diaphragm structure includes a diaphragm body and a composite material layer, in which the composite material layer is used for bonding onto the surface of the diaphragm body or attaching within the diaphragm body; moreover, the composite material layer is composed of one or more types of tetrapyrrole compounds as well as one or more types of metal ions; additionally, the composite material layer has a thickness smaller than the thickness of the diaphragm body, and is mainly applied to provide the performance effect of sound quality modifications. |
| priorityDate |
2018-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |