Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6193788 | Electric dust collecting apparatus and manufacturing method of the same | — | 2001-02-27 |
| 5958112 | Air-cleaning apparatus | — | 1999-09-28 |
| 5950424 | Diesel engine exhaust particle collection device | — | 1999-09-14 |
| 5928592 | Method of manufacturing an electric dust collection unit | — | 1999-07-27 |
| 5925170 | Electric dust-collection unit and air-cleaning apparatus using the same | — | 1999-07-20 |