Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830820 | Method for producing material for semiconductor device | Yusuke Odani, Kiyoaki Akechi, Nobuhito Kuroishi | 1989-05-16 |
YI
Yoshiaki Itoh
Overall (1989): #41,097 of 140,708Top 30%
1
Patents 1989