| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e5587f7462c3d7e987ba12875c59e894 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T29-49128
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B2562-164
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T29-49005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T29-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03H3-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10N30-302
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10N30-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10K11-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B06B1-0622
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10N30-1071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10N30-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B06B1-0685
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B06B1-0644
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10N30-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L41-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B06B1-06 |
| filingDate |
2010-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fbd5f0ec617fe7c03c4573bee0251c59
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2968568745397f8ca5fb07ab1c330a48 |
| publicationDate |
2011-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2011050039-A1 |
| titleOfInvention |
Multilayer acoustic impedance converter for ultrasonic transducers |
| abstract |
An impedance conversion layer useful for medical imaging ultrasonic transducers comprises a low impedance polymer layer and a high impedance metal layer. These layers are combined with corresponding thicknesses adapted to provide a function of converting from a specific high impedance to specific low impedance, wherein the polymer layer is at the high impedance side and the metal layer is at the low impedance side. The effective acoustic impedance of the polymer and metal layer combination may be adapted to configure an impedance converter in the same way as a quarter wavelength impedance converter, converting from low impedance to high impedance (metal to polymer) or from a high impedance to low impedance (polymer to metal). This structure may be used for front matching with the propagation medium and back matching with an absorber for ultrasonic transducers. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9945818-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8564177-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11715321-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-4089514-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015241393-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105793674-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014252917-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10627511-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2610861-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9166141-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11679414-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017285877-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10503309-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110419115-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017307756-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114308601-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8836203-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9287490-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10326072-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016332198-A1 |
| priorityDate |
2009-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |