Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6558473 | Dry ice cleaning method, dry ice cleaning apparatus, and part or unit cleaned by dry ice | Masaki Okazawa | 2003-05-06 |
| 6524394 | Dry ice cleaning method and dry ice cleaning apparatus | Masaki Okazawa | 2003-02-25 |