Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5598025 | Semiconductor device comprises an impurity layer having boron ions in the form of clusters of icosahedron structure | Atsushi Murakoshi, Ichiro Mizushima, Masaharu Watanabe | 1997-01-28 |