| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be055db3c1a09879df07379ba969e223 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01S7-521
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R17-00 |
| filingDate |
2001-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_afc9315d3373ea8f68458762e8eadccd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b9bde9b3694b3f44d2e95bbb3d86f5ac
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3bb319848c514c848e5fc9e58e29300 |
| publicationDate |
2002-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2002325297-A |
| titleOfInvention |
Ultrasonic transducer |
| abstract |
(57) [Problem] To prevent the difference in output performance due to the temperature of an ultrasonic transducer even if the characteristics of an acoustic matching member and an adhesive change with temperature. SOLUTION: In order to connect an acoustic matching member made of an inorganic material having a skeleton 10 composed of a main material (alumina) and an auxiliary material (glass A) to a metal case 3 with a joining member 6 made of an inorganic material, The thermal expansion coefficient of the acoustic matching member is adjusted to a value close to that of the joining member by using the main material and the auxiliary material having different thermal expansion coefficients. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114137070-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114137070-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008172306-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112313968-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020004097-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3813385-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005029912-A1 |
| priorityDate |
2001-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |