Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6378760 | Method for manufacturing joint of carbon steel pipes suitable for expansion and expanding method | Takao Shimizu, Hirotsugu Horio, Kazushige Kitou, Shigeyuki Inagaki | 2002-04-30 |