Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5704424 | Heat transfer tube having grooved inner surface and production method therefor | Haruo Kohno, Takashi Kazama, Yoshikatsu Arayama, Kohtaroh Nagahara, Shunroku Sukumoda | 1998-01-06 |