| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1476752f2420c8f8eb53464cf7fc922b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24f54aefd7a75822ce9d6a7759e20068 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-02881 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M2-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M2-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R31-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-48 |
| filingDate |
2006-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_269de780fba5775bf958ab8c25ac8883
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93fa11c0fdb0228e93439c4cc2a4ecce
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f68cd7beb2d6091be7d78dfd9487fee9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f23407dc9eb5b20b3f95e3fc86891302
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56e9e3873bfc6dda7b1887c99f1b2546 |
| publicationDate |
2007-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2007322236-A |
| titleOfInvention |
Lead acid battery and its remaining capacity sensor |
| abstract |
A lead-acid battery remaining capacity sensor that can be used for a lead-acid battery with a simple structure, and a lead-acid battery that can output the remaining capacity as an electric signal. A lead storage battery includes a case, and a remaining capacity sensor of the lead storage battery is attached so as to be immersed in a solution in the case. The remaining capacity sensor 20 includes a pair of ultrasonic transducers 36 and 38 facing each other, and a circuit board 40 for controlling the ultrasonic transducers 36 and 38. The ultrasonic transducers 36 and 38 and the circuit board 40 are covered with a frame 42 formed of a resin material having resistance to dilute sulfuric acid. In the solution, the speed of sound in the solution is measured by transmitting and receiving ultrasonic waves between the ultrasonic transducers 36 and 38. The specific gravity of the solution is calculated from the relationship between the specific gravity of the solution and the speed of sound in the solution, and the remaining capacity of the lead storage battery is grasped from the specific gravity of the solution. [Selection] Figure 3 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018537682-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109507601-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012511239-A |
| priorityDate |
2006-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |