Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D494552 | Exhaust ring for manufacturing semiconductors | Kazuyuki Tezuka, Norihiko Amikura, Hiroshi Koizumi | 2004-08-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D494552 | Exhaust ring for manufacturing semiconductors | Kazuyuki Tezuka, Norihiko Amikura, Hiroshi Koizumi | 2004-08-17 |