Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5371729 | Information recording method | Ryoichi Yamamoto, Kazuo Sanada | 1994-12-06 |
SU
Shizuo Umemura
Overall (1994): #67,687 of 165,921Top 45%
1
Patents 1994