Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699461 | Optical fiber sensors and method for making the same | Yukiko Yoshikawa, Nobuki Itoh, Daisuke Ishiko, Satoshi Ishizuka | 1997-12-16 |
| 5691837 | Magneto-optical element and optical magnetic field sensor using the same | Nobuki Itoh, Daisuke Ishiko, Satoshi Ishizuka | 1997-11-25 |