Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621016 | Magnetic recording media | Akiho Kawata, Youichiro Morino, Harumi Okajima | 1986-11-04 |
| 4556604 | Magnetic recording media | Nobuo Ohbayashi, Akiho Kawata, Teruhisa Niinuma | 1985-12-03 |