Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215829 | Method for strengthening pressure resistance of a hollowed metallic structure and a pressure resistant structure made thereby | Takashi Matsunobu, Kazumi Anazawa, Kunio Enomoto | 1993-06-01 |