Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803315 | Printed circuit board | Mitsumasa Kako | 1989-02-07 |
SH
Sadashi Hirano
Overall (1989): #59,436 of 140,708Top 45%
1
Patents 1989