Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7320361 | Heat exchanger | Hidemoto Arai, Kenzou Takahashi, Youichi Sugiyama, Masaru Takada, Masataka Yoshino | 2008-01-22 |
| 7299862 | Total heat exchanging element | Masaru Takada, Hidemoto Arai, Youichi Sugiyama, Kenzo Takahashi, Junji Harada +1 more | 2007-11-27 |
| 6019170 | Spacer for heat exchangers, element for heat exchangers, and heat exchanger | Kenzo Takahashi, Hidemoto Arai | 2000-02-01 |
| 5624610 | Humidifier | Kenzo Takahashi | 1997-04-29 |
| 5318731 | Humidifier | Kenzo Takahashi, Shigeo Makimura | 1994-06-07 |
| 4963081 | Separator manufacturing apparatus | — | 1990-10-16 |
| 4957423 | Separator manufacturing apparatus | — | 1990-09-18 |
| 4897026 | Separator manufacturing apparatus | — | 1990-01-30 |
| 4616695 | Heat exchanger | Kenzo Takahashi, Nobuo Kumazaki, Hironobu Nakamura, Tadakatsu Kachi | 1986-10-14 |