Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5813276 | Press die of cement composite and a method of producing the same | — | 1998-09-29 |
| 5295449 | Dry distillation gasification combustion equipment, dry distillation gas generator, and combustion gas burner unit | Seiichirou Sasahara | 1994-03-22 |