Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875522 | Heat pipe heat exchanger | Hajime Noda, Kuniyoshi Sato | 1989-10-24 |
| 4873127 | Method of making heat transfer tube | Kagetoshi Onodera, Tatsuya Koizumi, Toshiyuki Kato, Masauki Momo, Shuichi Furuya | 1989-10-10 |
| 4803343 | Electric fluid heating apparatus utilizing a vaporizable working fluid | Tatsuya Koizumi, Shiro Endo, Nobuyoshi Mashino, Susumu Seo | 1989-02-07 |