Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684522 | Method of recording information on ferroelectric material using polarization | Ryoichi Yamamoto, Kazuo Sanada | 1997-11-04 |
SU
Shizuo Umemura
Overall (1997): #77,240 of 185,788Top 45%
1
Patents 1997