Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4671978 | Flexible magnetic disc sheet | Mikihiko Kato, Shigeo Komine, Kouji Nakata | 1987-06-09 |
KK
Katsumi Koyota
Overall (All Time): #3,976,180 of 4,157,543Top 100%
1
Patents All Time