Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6622747 | Cutting, valve insertion and corrosion-resistant works without fluid supply interruption | Toshiyuki Sato | 2003-09-23 |
| 6615859 | Fluid supply interruption free method of construction | Toshiyuki Sato | 2003-09-09 |
| 6530389 | Existing pipe cut-off method, existing pipe slitting method, piping structure, and valve insertion method for inserting a valve in a line without stopping passage of water or fluid | Toshiyuki Sato, Hideshige Homma, Gumpei Yokoyama | 2003-03-11 |
| 6527988 | Process of making carbon fiber with sharp ends | Toshio Morita | 2003-03-04 |