Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6746196 | Vacuum treatment device | Jun Hirose, Eiji Hirose, Hiroshi Koizumi | 2004-06-08 |
| 6733620 | Process apparatus | Norikazu Sugiyama, Nobuyuki Okayama, Hidehito Saegusa | 2004-05-11 |