Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461974 | High temperature tungsten etching process | Tuqiang Ni, Thomas S. Choi | 2002-10-08 |
| 6400488 | Light beam scanner | Yasushi Nagasaka, Jun Kohsaka | 2002-06-04 |
| 6341030 | Light beam optical scanner and image forming apparatus | Jun Kohsaka, Yasushi Nagasaka | 2002-01-22 |