Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841744 | Double effect air cooled absorption refrigerating machine | Shigekichi Kurosawa, Yoshikazu Nagaoka, Shinichi Kannoh, Sadatoshi Takemoto, Tomihisa Oouchi +5 more | 1989-06-27 |
| 4794775 | Method of producing a heat transfer tube for single-phase flow | Heikichi Kuwahara, Kenji Takahashi, Takehiko Yanagida, Wataru Nakayama, Kiyoshi Oizumi | 1989-01-03 |