Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691806 | Projection exposure apparatus containing an enclosed hollow structure | Yukio Tokuda | 1997-11-25 |
YT
Yukio Takabayashi
Overall (1997): #53,791 of 185,788Top 30%
1
Patents 1997