Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7568520 | Oil cooler | Tatsuhiro Ozawa, Shiro Nakajima, Norimitsu Matsudaira, Shinichi Miyasaka, Hisashi Onuki | 2009-08-04 |
| 6968891 | Louver fin and corrugation cutter for forming louver fin | Kenji Tochigi, Hirokazu Yaezawa | 2005-11-29 |
| 6874230 | Method of manufacturing heat exchanger | Hiroshi Chikuma, Yoshinobu Okuno | 2005-04-05 |
| 6708730 | Temporary fixing structure for tubular bodies | Hiroshi Chikuma, Hirokazu Yaezawa, Yoshinobu Okuno, Katsumi Nakamura | 2004-03-23 |
| 6651334 | Tank of heat exchanger and method of producing same | Hiroshi Chikuma, Yoshinobu Okuno | 2003-11-25 |