Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767391 | Air filter | Minoru Tanaka, Katsuhiro Yamashita, Haruko Sasaki | 2004-07-27 |
| 6727201 | Slurry for carrying zeolite and method for manufacturing zeolite-carrying adsorption element | Teruzi Yamazaki | 2004-04-27 |