Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4786772 | Induction heating coil for heat-treating metallic tubes | Yasuhiro Tanaka, Chiyomitsu Fukazawa | 1988-11-22 |
| 4716986 | Vibration damping system | Hiroe Kobayashi | 1988-01-05 |
| 4608101 | Method for heat treating pipe with double-pipe section | — | 1986-08-26 |
| 4588869 | Method for relieving residual stresses by controlling weld heat input | Kazuo Yoshida | 1986-05-13 |
| 4585917 | Method for relieving residual stresses by build-up welding over outer surface of pipe | Kazuo Yoshida | 1986-04-29 |