Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5251690 | Apparatus for collecting cleaning bodies for tubular heat exchanger | Yoshio Sumiya, Yasuo Fujitani, Shigeo Oda, Tokunori Matsushima, Takuya Sasaki +5 more | 1993-10-12 |
| 4917176 | Device for cleaning inner surfaces of heat exchanger tubes | Toshimasa Shimada, Katsuhei Tanemura, Yasuo Fujitani, Shigeo Oda, Yoshio Sumiya | 1990-04-17 |
| 4692253 | Method and apparatus for removing extraneous matters | Masahiko Miyai, Yasuteru Mukai, Isamu Okouchi | 1987-09-08 |
| 4543188 | Apparatus for removing foreign matters from condenser cooling water | Isao Okouchi, Sankichi Takahashi, Kenkichi Izumi, Masahiko Miyai | 1985-09-24 |
| 4476917 | Method of and system for cleaning cooling tubes of heat transfer units | Masahiko Miyai, Takuya Sasaki, Yasuteru Mukai, Sankichi Takahashi, Isao Okouchi | 1984-10-16 |
| 4435285 | Sorting apparatus | Isao Okouchi, Sankichi Takahashi, Yasuteru Mukai, Takuya Sasaki, Masahiko Miyai | 1984-03-06 |
| 4420038 | Cleaning system for heat conductive conduits of a heat exchanger | Isao Okouchi, Sankichi Takahashi, Yasuteru Mukai, Takuya Sasaki, Masahiko Miyai | 1983-12-13 |
| 4390058 | Method of monitoring condenser performance and system therefor | Masahiko Miyai, Yasuteru Mukai, Isao Okouchi | 1983-06-28 |
| 4304295 | Cleaning body intercepting apparatus for tube-type heat-exchanger | — | 1981-12-08 |