http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11257473-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_268be9afa00cf55b5aa72b1612151ecb |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10K11-172 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10K11-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10K11-168 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10K11-162 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10K11-162 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10K11-16 |
| filingDate | 2019-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f7d5aab24af19ca2864d52d45c19f49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52155c4ca582236b25b21bbe7c4a7f9c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49d4a3b1acc359ca55fb7cd6e382fe9d |
| publicationDate | 2022-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-11257473-B2 |
| titleOfInvention | Soundproof structure and opening structure |
| abstract | There are provided a soundproof structure and an opening structure capable of suppressing degradation of sound absorbing characteristics due to resonance vibration. A micro perforated plate having a plurality of through-holes passing therethrough in the thickness direction and a first frame body, which is disposed in contact with one surface of the micro perforated plate and has a plurality of hole portions, are provided. The opening diameter of the hole portion of the first frame body is larger than the opening diameter of the through-hole of the micro perforated plate. The opening ratio of the hole portion of the first frame body is larger than the opening ratio of the through-hole of the micro perforated plate. The resonance frequency of the micro perforated plate in contact with the first frame body is higher than the audible range. |
| priorityDate | 2016-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 115.