Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662843 | Method for the production of polyolefin hollow fiber filter bundles | Takashi Monzen | 1997-09-02 |
| 5598025 | Semiconductor device comprises an impurity layer having boron ions in the form of clusters of icosahedron structure | Atsushi Murakoshi, Ichiro Mizushima, Masahiko Yoshiki | 1997-01-28 |