Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776384 | Method for monitoring copper-alloy tubes for maintaining corrosion resistance and cleanliness factor of their inner surfaces | Atsushi Kawabe, Katsumi Yasui, Masaki Yamamoto, Koji Nagata, Tetsuro Atsumi | 1988-10-11 |
| 4762168 | Condenser having apparatus for monitoring conditions of inner surface of condenser tubes | Atsushi Kawabe, Katsumi Yasui, Masaki Yamamoto, Koji Nagata, Tetsuro Atsumi | 1988-08-09 |
| 4421790 | Method for coating the inner surface of long tubes of small diameter | Koji Nagata, Shiro Sato | 1983-12-20 |
| 4370944 | Apparatus for coating the inner surface of long tubes of small diameter | Koji Nagata, Shiro Sato | 1983-02-01 |
| 4368219 | Method and apparatus for coating the inner surface of long tubes of small diameter | Koji Nagata, Kyuji Sudo, Kikuji Tachibana | 1983-01-11 |