Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8940081 | Combustible gas enrichment apparatus | Takahisa Utaki, Tamotsu Kotani | 2015-01-27 |
| 8932387 | Enrichment system for combustible gas | Takahisa Utaki | 2015-01-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8940081 | Combustible gas enrichment apparatus | Takahisa Utaki, Tamotsu Kotani | 2015-01-27 |
| 8932387 | Enrichment system for combustible gas | Takahisa Utaki | 2015-01-13 |