Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6691772 | Heat exchanger | — | 2004-02-17 |
| 6684662 | Refrigeration system, and condenser for use in decompressing-tube system | Hirohiko Watanabe, Ryoichi Hoshino, Yasuhiro Takahashi | 2004-02-03 |