Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6945321 | Heat exchangers | Akimichi Watanabe | 2005-09-20 |
| 6901995 | Heat exchangers and fin for heat exchangers and methods for manufacturing the same | Toru Yamaguchi | 2005-06-07 |
| 6257325 | Heat exchanger | Akimichi Watanabe | 2001-07-10 |
| 6189607 | Heat exchanger | Toshiharu Shinmura, Hirotaka Kado, Akira Sakano | 2001-02-20 |
| 6070659 | External connection for heat exchanger unit | — | 2000-06-06 |
| 5934367 | Heat exchanger | Toshiharu Shimmura, Tomohiro Chiba | 1999-08-10 |
| 5797184 | Method of making a heat exchanger | Hiroshi Tanaka | 1998-08-25 |
| 5586598 | Heat exchanger | Hiroshi Tanaka | 1996-12-24 |
| 5402571 | Method of making a heat exchanger | Hirotaka Kado | 1995-04-04 |
| 5348083 | Heat exchanger | Hirotaka Kado | 1994-09-20 |
| 5101214 | Adjustable length folded dipole antenna | Sohzo Ohtsuka, Yasushi Matsuyama | 1992-03-31 |