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Patent applications and USPTO patent grants for Kotani; Tamotsu.The latest application filed is for "gas concentration method".
Patent | Date |
---|---|
Gas concentration method Grant 10,124,287 - Tanaka , et al. November 13, 2 | 2018-11-13 |
Gas Concentration Method App 20170144101 - Tanaka; Hiroshi ;   et al. | 2017-05-25 |
Method of enriching combustible gas Grant 8,974,575 - Utaki , et al. March 10, 2 | 2015-03-10 |
Combustible gas enrichment apparatus Grant 8,940,081 - Utaki , et al. January 27, 2 | 2015-01-27 |
Combustible Gas Enrichment Apparatus App 20130136660 - Utaki; Takahisa ;   et al. | 2013-05-30 |
Method of Enriching Combustible Gas App 20130125466 - Utaki; Takahisa ;   et al. | 2013-05-23 |
Method and apparatus for welding using fillet-wire Grant 4,107,508 - Izumi , et al. August 15, 1 | 1978-08-15 |
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