Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4794775 | Method of producing a heat transfer tube for single-phase flow | Heikichi Kuwahara, Kenji Takahashi, Takehiko Yanagida, Wataru Nakayama, Shigeo Sugimoto | 1989-01-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4794775 | Method of producing a heat transfer tube for single-phase flow | Heikichi Kuwahara, Kenji Takahashi, Takehiko Yanagida, Wataru Nakayama, Shigeo Sugimoto | 1989-01-03 |