Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804568 | Electromagnetic shielding material | Toshiyuki Ohsawa, Yoshino Katsumi | 1989-02-14 |
KK
Keiichi Kanetou
Unknown: 1 patents #145 of 1,640Top 9%
Overall (1989): #35,219 of 140,708Top 30%
1
Patents 1989