http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S56120531-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_60e21de07fa18fc54e2150daffc14654 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c186e9ae8cafab5df5c8d80cfa7b0fa1 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B20-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-018 |
| filingDate | 1980-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3d8b47f3091bf09c851f405f3425127 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01b9dc59353c943c7e6b98b3a49aba79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e787d9aab9042783463bcaaa24c73ae3 |
| publicationDate | 1981-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S56120531-A |
| titleOfInvention | Manufacture of optical transmission glass preform |
| abstract | PURPOSE:To manufacture the titled preform doped with much nitrogen by feeding a gaseous silicon compound, NH3 and oxygen or a gaseous oxygen compound into a flame and directly depositing the resulting fine glass powder on a starting member in the molten state. CONSTITUTION:A plasma flame of an inert gas such as He or Ar is sprayed from high frequency plasma torch 2 on thin-walled quartz pipe (starting member) 1 which is moved back and forth while being rotated. On the other hand, a mixed gas of a gaseous silicon compound such as trichlorosilane, NH3 and oxygen or CO2, NO2 or the like is sprayed from nozzle 3 and heated to form glass fine particles represented by formula SiOxNy. The particles are immediately deposited on pipe 1 in the molten state to grow transparent nitrogen-doped quartz glass (SiOxNy) 4. |
| priorityDate | 1980-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.