Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9169539 | Cu-Mg-P-based copper alloy sheet having excellent fatigue resistance characteristic and method of producing the same | Jun Kumagai, Yoshio Abe | 2015-10-27 |
| 6662860 | Heat transfer pipe for liquid medium having grooved inner surface and heat exchanger employing the same | Takashi Iwamoto, Shinichi Ono, Yukio Sato, Masayuki Kawai, Yasushi Owaki +2 more | 2003-12-16 |
| 6298909 | Heat exchange tube having a grooved inner surface | Takao Fukatami, Tetsuya Furuuchi, Shin Kikuchi | 2001-10-09 |
| 5934128 | Heat transfer tube having grooved inner surface | Masayoshi Takiura, Seizo Masukawa, Haruo Kohno | 1999-08-10 |
| 5791405 | Heat transfer tube having grooved inner surface | Masayoshi Takiura, Seizo Masukawa, Haruo Kohno | 1998-08-11 |
| 5704424 | Heat transfer tube having grooved inner surface and production method therefor | Haruo Kohno, Takashi Kazama, Makoto Miyauchi, Yoshikatsu Arayama, Kohtaroh Nagahara | 1998-01-06 |
| 5259448 | Heat transfer tubes and method for manufacturing | Seizo Masukawa | 1993-11-09 |
| 5052476 | Heat transfer tubes and method for manufacturing | Seizo Masukawa, Haruo Kohno | 1991-10-01 |