Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814927 | Magnetic disk cartridge | Akira Mizuta, Tadashi Irie, Masanori Ishiguro | 1989-03-21 |
SI
Shoji Iwamoto
Overall (1989): #57,734 of 140,708Top 45%
1
Patents 1989