Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7399522 | Heat-resistant filter element and method for production thereof | Koji Nakanishi | 2008-07-15 |
| 5607490 | Filter having chemical resistance, antistatic property and water vapor resistance, and process for producing the same | Seihou Taniguchi, Hitoshi Otaka | 1997-03-04 |
| 5558689 | Reinforced filter element | Hiroyuki Yanagihara, Seihou Taniguchi, Hitoshi Otaka, Teiji Hashimoto, Sansan Souma | 1996-09-24 |
| 5080847 | Manufacturing method of filter element for dust collector | — | 1992-01-14 |
| 4551240 | Apparatus for classifying particulate material with air currents | Masaru Beppu, Setsuo Agawa, Toshiyuki Nashimoto | 1985-11-05 |