Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6761859 | Air cleaner | — | 2004-07-13 |
| 6716500 | Heat-resistant resin container and method of producing the same | Masahiko Otsuki, Tsutomu Iwasaki, Masahito Kogure | 2004-04-06 |
| 6679940 | Air cleaner and its ionizing unit | — | 2004-01-20 |