Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4694131 | Induction heating method and apparatus for relieving residual stress in welded joint between main and branch pipes | Toshio Ino, Tsukasa Maenosono, Kazuo Yoshida, Masanori Terasaki, Tadao Koga +1 more | 1987-09-15 |
| 4687894 | Induction heating method and apparatus for relieving residual stress in welded joints in pipe line | Tadao Koga, Mitsuru Sugimori, Masanori Terasaki, Tsukasa Maenosono, Satoru Tsushima +2 more | 1987-08-18 |