Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6523605 | Heat exchanger made of an aluminum alloy | Takeyoshi Doko, Koji Okada, Takeshi Iguchi, Takaaki Sakane, Yoshihiro Kinoshita +3 more | 2003-02-25 |
| 6206089 | Heat exchanger and method for manufacturing the same | Akira Uchikawa, Yasutoshi Yamanaka, Takaaki Sakane, Satomi Muto | 2001-03-27 |
| 6186222 | Aluminum alloy tube and heat exchanger, and method of metal-spraying a filler alloy | Takeyoshi Doko, Hirokazu Yamaguchi, Osamu Kato, Taketoshi Toyama, Kouji Hirakami +2 more | 2001-02-13 |