Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898232 | Heat exchanger and process for producing the same | Izumi Ochiai, Masahiro Miyagi, Yoshio Nozawa | 1990-02-06 |
| 4698904 | Apparatus for assembling fins and tubes for heat exchangers | Yoshio Nozawa, Izumi Ochiai, Masahiro Miyagi, Katsuharu Uehara, Takahiko Deguchi +3 more | 1987-10-13 |
| 4597171 | Tube-enlarging press for use in heat exchanger fabrication | Izumi Ochiai, Yoshio Nozawa, Masahiro Miyagi, Tadaaki Ayabe, Katsuharu Uehara | 1986-07-01 |
| 4593756 | Fin-and-tube type heat exchanger | Masaaki Itoh, Hiroshi Kogure, Kenji Iino, Izumi Ochiai, Masahiro Miyagi | 1986-06-10 |