Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687614 | Magnetic screw device | Yukito Kubo | 1997-11-18 |
| 5663975 | Multi-beam semiconductor laser with separated contacts characterized by semiconductor mixed crystal and active layer | Ichiro Yoshida, Tsukuru Katsuyama | 1997-09-02 |
| 5643686 | Magnetic recording medium and method for manufacturing the same | Teiichi Isshiki, Masayuki Hatano, Tomoaki Karino, Yoshifumi Kanda | 1997-07-01 |